A Randomized, Double-Blind, Parallel-Group, Placebo- and Active-Controlled, Multicenter Phase III Study of the Efficacy and Safety of Olokizumab in Subjects With Moderately to Severely Active Rheumatoid Arthritis Inadequately Controlled by Methotrexate Therapy
Phase: PHASE3
Conditions: Rheumatoid Arthritis
Sponsor: R-Pharm International, LLC

R-Pharm 
CL04041023:  Clinical Rheumatoid Arthritis Development for Olokizumab (CREDO) 2 
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Clinical Study Protocol 
Protocol Title: 
A Randomized, Double-Blind, Parallel-Group, 
Placebo- and Active-Controlled, Multicenter Phase III 
Study of the Efficacy and Safety of Olokizumab in 
Subjects with Moderately to Severely Active Rheumatoid 
Arthritis Inadequately Controlled by Methotrexate 
Therapy 
Protocol Number: 
CL04041023:  Clinical Rheumatoid Arthritis 
Development for Olokizumab (CREDO) 2 
Date of Protocol: 
 
 
28 May 2018 
Version of Protocol: 
 
 
Amendment 2.1 (United States) 
Product: 
Olokizumab (CDP6038; L04041) 
IND No: 
104933 
EudraCT No: 
2015-005307-83 
Study Phase: 
III 
Sponsor: 
R-Pharm 
19-1, Berzarina Street, Moscow 
Russian Federation 123154 
 
 
 
 
 
Confidentiality Statement 
The confidential information in this document is provided to you as an Investigator or 
consultant for review by you, your staff, and the applicable Institutional Review 
Board/Independent Ethics Committee.  The acceptance of this document constitutes 
agreement that you will not disclose the information contained herein to others without 
written authorization from R-Pharm. 

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Investigator Signature Page 
PROTOCOL TITLE: 
A Randomized, Double-Blind, Parallel-Group, Placebo- and 
Active-Controlled, Multicenter Phase III Study of the Efficacy and Safety of Olokizumab in 
Subjects with Moderately to Severely Active Rheumatoid Arthritis Inadequately Controlled 
by Methotrexate Therapy 
PROTOCOL NO: 
CL04041023:  Clinical Rheumatoid Arthritis Development for 
Olokizumab (CREDO) 2 
This protocol is a confidential communication of R-Pharm.  I confirm that I have read this 
protocol, I understand it, and I will work according to this protocol.  I will also work 
consistently with the ethical principles that have their origin in the Declaration of Helsinki 
and that are consistent with GCPs and the applicable laws and regulations.  Acceptance of 
this document constitutes my agreement that no unpublished information contained herein 
will be published or disclosed without prior written approval from R-Pharm. 
Instructions to the Investigator:  Please SIGN and DATE this signature page.  PRINT your 
name, title, and the name of the site in which the study will be conducted.  Return the signed 
copy to R-Pharm’s designee. 
 
I have read this protocol in its entirety and agree to conduct the study accordingly: 
Signature of Investigator: 
__________________________ 
 
Date: ________ 
Printed Name:  
 
__________________________ 
Investigator Title: 
 
__________________________ 
Name/Address of Site: 
__________________________ 
 
 
 
 
__________________________ 
 
 
 
 
__________________________ 
 

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EMERGENCY CONTACTS 
24-hour emergency medical contact 
+1 973-659-6677 
+1 570-819-8565 (alternate number) 
SAE reporting 
All SAEs should be reported via the EDC 
system by completing the relevant pages of 
the eCRF. 
In the event that the EDC system is not 
functioning, SAEs must be reported to the 
following email address: 
QLS_Olokizumab@quintiles.com 
Abbreviations:  eCRF = electronic Case Report Form; EDC = Electronic Data Capture; SAE = Serious Adverse 
Event. 

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SYNOPSIS 
Name of Sponsor 
R-Pharm 
Name of Finished 
Product 
Olokizumab 
Name of Active 
Ingredient 
Olokizumab (CDP6038; L04041) 
Title of Study: 
A Randomized, Double-Blind, Parallel-Group, Placebo- and Active-Controlled, 
Multicenter Phase III Study of the Efficacy and Safety of Olokizumab in Subjects with 
Moderately to Severely Active Rheumatoid Arthritis Inadequately Controlled by 
Methotrexate Therapy 
Protocol No: 
CL04041023:  Clinical Rheumatoid Arthritis Development for Olokizumab (CREDO) 2 
Investigators: 
A total of approximately 235 Investigators will be involved in the conduct of this study. 
Study sites: 
The study will be conducted at approximately 235 sites across Russia, Georgia, the 
United States (US), the European Union (EU), Asia, and Latin America. 
Study duration: 
Screening:  4 weeks 
Treatment Period:  24 weeks 
Safety Follow-Up:  20 weeks 
Phase:  III 
Objectives: 
Primary: 
The primary objective of this study is to evaluate the efficacy of olokizumab (OKZ) 64 mg administered 
subcutaneously (SC) once every 2 weeks (q2w) or once every 4 weeks (q4w) relative to placebo in subjects 
with moderately to severely active rheumatoid arthritis (RA) inadequately controlled by methotrexate (MTX) 
therapy. 
Secondary: 
• 
To evaluate the efficacy of OKZ relative to adalimumab in subjects with moderately to severely active 
RA inadequately controlled by MTX therapy (for EU submission). 
• 
To evaluate the efficacy of OKZ over time 
• 
To compare the physical function and quality of life of subjects receiving OKZ relative to placebo 
• 
To assess exposure to OKZ 
• 
To assess the safety and tolerability of OKZ 
Criteria for Evaluation: 
Primary Efficacy Endpoint: 
The primary efficacy endpoint is the American College of Rheumatology 20% (ACR20) response at Week 12, 
where a responder is defined as any subject satisfying ACR20 criteria and remaining on randomized treatment 
and in the study at Week 12.  This endpoint will serve to demonstrate that the efficacy of OKZ is superior to 
placebo. 
Secondary Efficacy Endpoints: 
The following secondary efficacy endpoints will be evaluated: 
• 
For EU submission:  ACR20 response at Week 12, where a responder is defined as any subject 
satisfying ACR20 criteria and remaining on randomized treatment and in the study at Week 12.  This 
endpoint will serve to demonstrate that the efficacy of OKZ is non-inferior to adalimumab, provided 
that superiority of adalimumab to placebo (assay sensitivity) is demonstrated concurrently based on the 

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CL04041023:  Clinical Rheumatoid Arthritis Development for Olokizumab (CREDO) 2 
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same endpoint 
• 
Percentage of subjects achieving low disease activity, defined as Disease Activity Score 28-joint count 
(DAS28) C-reactive protein (CRP) <3.2, and remaining on randomized treatment and in the study at 
Week 12 
• 
For EU submission:  Percentage of subjects achieving low disease activity, defined as DAS28 
(CRP) <3.2, and remaining on randomized treatment and in the study at Week 12.  This endpoint will 
serve to demonstrate that the efficacy of OKZ is non-inferior to adalimumab, provided that superiority 
of adalimumab to placebo (assay sensitivity) is demonstrated concurrently based on the same endpoint 
• 
Improvement of physical ability from baseline to Week 12, as measured by the Health Assessment 
Questionnaire-Disability Index (HAQ-DI) 
• 
Percentage of subjects achieving an American College of Rheumatology 50% (ACR50) response and 
remaining on randomized treatment and in the study at Week 24 
• 
Percentage of subjects with Clinical Disease Activity Index (CDAI) ≤2.8 (remission) and remaining on 
randomized treatment and in the study at Week 24 
Other Efficacy Endpoints: 
The following additional efficacy endpoints will be used to compare OKZ with placebo and adalimumab: 
• 
Proportion of subjects achieving an ACR20, ACR50, and American College of Rheumatology 70% 
(ACR70) response and remaining on randomized treatment and in the study, assessed at all other 
applicable time points 
• 
Proportion of subjects with Simplified Disease Activity Index (SDAI) ≤3.3 (remission) and remaining 
on randomized treatment and in the study, assessed at all applicable time points 
• 
Proportion of subjects with CDAI ≤2.8 (remission) and remaining on randomized treatment and in the 
study, assessed at all other applicable time points. 
• 
Proportion of subjects with DAS28 low disease activity (based on DAS28 [CRP] <3.2) and remaining 
on randomized treatment and in the study at all other applicable time points 
• 
Proportion of subjects with improvement from baseline in HAQ-DI score ≥0.22 and remaining on 
randomized treatment and in the study, assessed at all applicable time points 
• 
Change from baseline over time in DAS28 (CRP) 
• 
Change from baseline to Weeks 12 and 24 in DAS28 erythrocyte sedimentation rate (ESR) 
• 
Change from baseline to all other applicable time points in the measure of physical ability (HAQ-DI) 
• 
Change from baseline to Weeks 12 and 24 in the scores for the following patient-reported outcome 
(PRO) measures: 
- 
Short Form-36 (SF-36) Physical Component Summary (PCS) and Mental Component Summary 
(MCS) total scores 
- 
European Quality of Life-5 Dimensions (EQ-5D) 
- 
Work Productivity Survey-Rheumatoid Arthritis (WPS-RA) 
- 
Functional Assessment of Chronic Illness Therapy-Fatigue Scale (FACIT-Fatigue) 
• 
Change from baseline to all applicable time points in SDAI and CDAI 
• 
Proportion of subjects with moderate to good responses for European League Against Rheumatism 
(EULAR) based on DAS28 (CRP) and remaining on randomized treatment and in the study, assessed 
at all applicable time points, where a moderate response is defined as either DAS28 (CRP) ≤5.1 with 
an improvement from baseline in DAS28 (CRP) >0.6 and ≤1.2, or DAS28 (CRP) >3.2 with an 
improvement from baseline in DAS28 (CRP) >1.2, and a good response is defined as DAS28 (CRP) 
≤3.2 with an improvement from baseline in DAS28 (CRP) >1.2 
• 
Change from baseline to all time points in the components of the American College of Rheumatology 
(ACR) response criteria 

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Pharmacokinetic (PK) Endpoints: 
Exposure to OKZ in plasma will be assessed as follows: 
• 
Blood samples will be collected from all subjects periodically throughout the study, including at each 
time a blood sample is taken for the determination of antidrug antibodies (ADAs) (ADA/PK matched 
subjects), with the exception of the final Follow-Up Visit.  However, PK samples will not be analyzed 
unless the subject has a confirmed positive ADA response.  If formation of ADAs is observed in any 
postdose sample, all PK samples for that subject will be analyzed. 
• 
At least one-third (33%) of the subjects in the OKZ treatment groups will be randomly selected to have 
their PK samples analyzed for OKZ concentrations in plasma.  The randomization will be such that an 
equal number of subjects will be included from both OKZ treatment groups.  Data for these subjects 
will be included in future planned population PK modeling. 
Pharmacokinetic/Pharmacodynamic (PD) Correlations: 
The PK/PD relationship and immunogenicity of OKZ will be assessed by: 
• 
Characterizing the dose/exposure-response relationships related to efficacy endpoints 
(e.g., ACR20 response) and identifying potential factors that may impact the efficacy endpoints 
• 
Characterizing the dose/exposure-response relationships related to safety endpoints (e.g., lipids and 
neutrophils) and identifying potential factors that may impact the safety endpoints 
• 
Evaluating the impact of ADAs on subject safety, efficacy, and PK of OKZ 
Safety Endpoints: 
• 
The nature, incidence, severity, and outcome of adverse events (AEs), including serious adverse events 
(SAEs) and adverse events of special interest (AESIs) 
• 
Proportions of subjects with AEs, SAEs, and clinically significant laboratory abnormalities 
• 
Assessment of changes over time in clinical laboratory parameters, vital signs, and physical 
examination findings 
• 
Incidence and titer of ADAs to OKZ, incidence of neutralizing antibodies, and the time course of 
antibodies 
Methodology: 
The CREDO 2 study includes a 4-week Screening Period, a double-blind Treatment Period from Week 0 to 
Week 24, and a Safety Follow-Up Period from Week 24 to Week 44. 
Subjects will be assessed for eligibility to enter the study during a 4-week Screening Period.  At randomization, 
a total of 1575 eligible subjects will be randomly assigned to 1 of 4 treatment groups in a 2:2:2:1 ratio (450, 
450, 450, and 225 subjects per group, respectively): 
1. OKZ 64 mg q4w:  SC injection of OKZ 64 mg q4w (alternating with SC injection of placebo OKZ 
q4w to maintain blinding) + MTX. 
2. OKZ 64 mg q2w:  SC injection of OKZ 64 mg q2w + MTX. 
3. Adalimumab 40 mg q2w:  SC injection of adalimumab 40 mg q2w + MTX. 
4. Placebo:  SC injection of placebo OKZ q2w + MTX. 
Throughout the double-blind Treatment Period, all subjects will be required to remain on a stable dose of 
background MTX at 15 to 25 mg/week (or ≥10 mg/week if there is documented intolerance to higher doses) 
with a stable route of administration, and concomitant treatment with folic acid ≥5 mg per week or equivalent is 
required for all subjects.  The last dose of study treatment (OKZ, adalimumab, or placebo) will be at 
Week 22 in all groups.  Following Visit 2 (randomization), subjects will return to the study site at least every 
other week through Week 24 for response and safety assessments as per the study Schedule of Events.  Blood 
samples to assess OKZ concentrations in plasma will be collected periodically during the Treatment Period as 
per the study Schedule of Events. 
Subjects will be classified in terms of their response to study treatment at Week 14, with nonresponders defined 
as subjects in any treatment group who do not improve by at least 20% in both swollen and tender joint counts 

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CL04041023:  Clinical Rheumatoid Arthritis Development for Olokizumab (CREDO) 2 
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(66-68 joint assessment).  Starting at or as close as possible to Week 14, nonresponders will be administered 
sulfasalazine and/or hydroxychloroquine as rescue medication in addition to the assigned treatment. 
After completion of the 24-week, double-blind Treatment Period, subjects will either roll over into the 
long-term open-label extension (OLE) study or enter the Safety Follow-Up Period.  During the Safety 
Follow-Up Period, subjects will return for visits +4, +8, and +22 weeks after the last dose of study treatment at 
Week 22 as per the Schedule of Events (Visits SFU-1 [Week 26], SFU-2 [Week 30], and SFU-3 [Week 44], 
respectively). 
Adverse events will be assessed throughout the study (starting when the subject signs the informed consent 
form [ICF]) and evaluated using the Common Terminology Criteria for Adverse Events (CTCAE) version 4.0. 
Subjects who discontinue the randomized treatment prematurely will be required to come for the End of 
Treatment (EoT) Visit 2 weeks after the last study treatment administration and then continue with the 
scheduled study visits as per the Schedule of Events. 
There will be ongoing monitoring of safety events, including laboratory findings, by the Sponsor or the 
Sponsor’s designee.  In addition, safety will be assessed throughout the study by an independent Data Safety 
Monitoring Board (DSMB). 
Planned number of subjects: 
A total of 1575 subjects will be randomly assigned to 1 of 4 treatment 
groups in a 2:2:2:1 ratio (450, 450, 450, and 225 subjects per group, 
respectively). 
Treatment population: 
Subjects with moderately to severely active RA and an inadequate 
response to treatment with MTX therapy. 
Diagnosis and 
main criteria for inclusion: 
Male or female subjects ≥18 years of age with diagnosis of moderately to 
severely active adult-onset RA and an inadequate response to treatment 
with MTX therapy. 
Test product, dose and mode of 
administration: 
Olokizumab is a humanized monoclonal antibody specific for 
interleukin-6 (IL-6). 
Subjects randomized to receive OKZ will be administered OKZ 64 mg via 
SC injection either q2w or q4w, depending on the randomization group. 
Reference therapy, dose, and 
mode of administration: 
Adalimumab (Humira®):  Adalimumab is a TNFi that is licensed for 
treating RA in several regions, including the US and EU.  Subjects 
randomized to receive adalimumab will be administered adalimumab 
40 mg q2w via SC injection as an active comparator. 
Placebo:  The placebo will contain no active pharmaceutical ingredients.  
Subjects randomized to the placebo group will be administered placebo 
via SC injection q2w. 
To maintain the blind, subjects randomized to receive OKZ q4w will also 
receive placebo injections at the alternate q4w interval (e.g., Week 2, 
Week 6, etc).  Placebo will be administered in blinded syringes with the 
same appearance as syringes containing OKZ. 
MTX:  Subjects in all 4 treatment groups will continue their concomitant 
background therapy (MTX) at a stable dose of 15 to 25 mg/week (or 
≥10 mg/week if there is documented intolerance to higher doses) with a 
stable route of administration (oral, SC, or intramuscular [IM]). 

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Statistical Methods: 
Calculation of Sample Size 
Given that the study will be considered successful if at least 1 of the 2 OKZ dose regimens is shown to be 
efficacious and that a priori both OKZ dose regimens are assumed to be efficacious, disjunctive power (i.e., a 
probability of detecting a significant treatment effect for at least 1 OKZ treatment regimen) will be used as a 
criterion for the estimation of the sample size.  Sample size requirements are calculated to provide sufficient 
disjunctive power to evaluate the primary endpoint (superiority of OKZ relative to placebo with respect to 
ACR20 response rate at Week 12) and 3 secondary endpoints (noninferiority of OKZ relative to adalimumab 
with respect to the ACR20 response rate at Week 12, superiority of OKZ relative to placebo with respect to the 
proportion of subjects with DAS28 (CRP) <3.2 at Week 12, and noninferiority of OKZ relative to adalimumab 
with respect to the proportion of subjects with DAS28 (CRP) <3.2 at Week 12).  Sample size was estimated 
taking into account a multiplicity control procedure and the resulting α adjustment that will be used in this study 
to control an overall Type I error rate in the strong sense at a 1-sided α = 0.025 across the primary and 
secondary endpoints.  For each secondary endpoint, the disjunctive power represents a probability of 
establishing a significant treatment effect for 1 or 2 OKZ dose regimens for the primary endpoint and a 
significant treatment effect for 1 or 2 OKZ dose regimens for a given secondary endpoint, conditional on the 
fact that each dose regimen tested for this secondary endpoint must have null hypotheses previously rejected for 
all endpoints (primary and secondary) that precede this endpoint in a fixed order of testing as per the gate-
keeping procedure. 
Treatment effect assumptions used in the simulation-based sample size calculations involving the primary and 
the 3 selected secondary endpoints are as follows. 
The ACR20 response rate at Week 12 for the placebo group is estimated to be 25% in this study population.  
The OKZ ACR20 response rates for the 64 mg q4w and q2w treatment groups at Week 12 are expected to be at 
least 50% and 55%, respectively, resulting in an expected difference in ACR20 response rates of 25 and 
30 percentage points between the respective OKZ groups and placebo. 
The ACR20 response rate for adalimumab is expected to be at least 52.5% at Week 12.  A noninferiority 
margin of 12% is used for the comparison between OKZ and adalimumab. 
The DAS28 low disease activity (based on DAS28 [CRP] <3.2) response rate at Week 12 is estimated to be 
10% in the placebo group and 22% and 30% in the OKZ 64 mg q4w and q2w treatment groups respectively, 
resulting in an expected difference of 12 and 20 percentage points between respective OKZ treatment groups 
and placebo. 
The DAS28 low disease activity (based on DAS28 [CRP] <3.2) response rate for adalimumab is expected to be 
at least 27% at Week 12.  A noninferiority margin of 7.5% is used for the comparison between OKZ and 
adalimumab with respect to this endpoint. 
The references cited above for ACR20 and DAS28 response rates are assumed to reflect approximately 10% of 
subjects discontinuing randomized treatment prior to Week 12.  In this study, subjects who discontinue prior to 
Week 12 will be classified as nonresponders for the primary endpoint of ACR20 at Week 12 as well as for the 
secondary endpoints of noninferiority of OKZ relative to adalimumab with respect to the ACR20 response rate 
at Week 12, superiority of OKZ relative to placebo with respect to the proportion of subjects with 
DAS28 (CRP) <3.2 at Week 12, and noninferiority of OKZ relative to adalimumab with respect to the 
proportion of subjects with DAS28 (CRP) <3.2 at Week 12. 
The primary endpoint as well as the secondary endpoints that are binary in nature will be analyzed using a 
2×2 chi-squared test for equality of proportions for each OKZ treatment group compared with placebo.  
Noninferiority testing for each OKZ dosing regimen versus adalimumab with respect to ACR20 rate and 
DAS28 low disease activity rate at Week 12 will be carried out based on a 97.5% 2-sided confidence interval 
for difference between proportions (OKZ versus adalimumab) and comparing the lower confidence limit with 
the noninferiority margin of -12% for the ACR20 rate and the noninferiority margin of -7.5% for the DAS28 
low disease activity rate. 
Based on the treatment effect assumptions and the methodology for estimating sample size via simulation to 
ensure sufficient disjunctive power as described above, a sample size of 1575 subjects randomized in a 

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2:2:2:1 ratio (450, 450, 450, and 225 subjects per group, respectively) will yield 100% disjunctive power for 
testing the primary hypothesis (superiority of OKZ to placebo with respect to ACR20 rate at Week 12), 92% 
disjunctive power for testing the secondary hypothesis of noninferiority of OKZ to adalimumab with respect to 
ACR20 rate at Week 12, 92% disjunctive power for the evaluation of the secondary endpoint of superiority of 
OKZ to placebo with respect to DAS28 (CRP) <3.2 rate at Week 12, and 88% disjunctive power for testing the 
secondary hypothesis of noninferiority of OKZ to adalimumab with respect to DAS28 (CRP) <3.2 rate at 
Week 12. 
Selection of Noninferiority Margin 
In a meta-analysis of 2 key pivotal clinical studies for registration of adalimumab, the difference between the 
ACR20 response rate at Week 12 for adalimumab+MTX (N=280) and placebo+MTX (N=262) was equal to 
35% (95% confidence interval:  27.3% to 42.6%).  Therefore, 27.3% is the absolute largest noninferiority 
margin that could be justified.  Using an assumption of 55% ACR20 response rate at Week 12 for adalimumab 
and a more conservative minimum lower bound of 43% for OKZ is considered to be clinically meaningful.  As 
a result, we use a noninferiority margin of 12% for ACR20 response rate at Week 12. 
In a meta-analysis of 2 clinical studies of adalimumab, the difference between the DAS28 (CRP) <3.2 response 
rate at Week 12 for adalimumab+MTX (N=537) and placebo+MTX (N=688) was equal to 20% (95% 
confidence interval:  15.3% to 24.6%).  Therefore, 15.3% is the absolute largest noninferiority margin that 
could be justified.  Using an assumption of 27% for DAS28 (CRP) <3.2 response rate at Week 12 for 
adalimumab and a more conservative minimum lower bound of 19.5% for OKZ is considered to be clinically 
meaningful.  As a result, we use a noninferiority margin of 7.5% for DAS28 (CRP) <3.2 response rate at 
Week 12. 
Analysis Populations 
• 
Intent-to-treat (ITT) population:  The ITT population will include all randomized subjects.  Subjects 
will be analyzed according to the treatment group to which they were randomized.  The ITT 
population will be the primary analysis population. 
• 
Modified Intent-to-treat (mITT) population:  The mITT population will include all randomized 
subjects who receive at least 1 dose of study treatment.  Subjects will be analyzed according to the 
treatment group to which they were randomized.  The mITT population, if sufficiently different from 
the ITT population (>5% of ITT subjects excluded from mITT across all treatment groups), will be 
used for supportive analyses of the primary and secondary efficacy endpoints. 
• 
Per Protocol (PP) population:  The PP population will include all ITT subjects who do not have any 
major protocol violations.  Subjects will be analyzed according to the treatment group to which they 
were randomized.  Major protocol violations and the inclusion of subjects in the PP population will be 
finalized prior to study unblinding.  The PP population will be used for supportive analyses of the 
primary and secondary efficacy endpoints. 
• 
Safety population:  The Safety population will include all subjects who receive at least 1 dose of study 
treatment.  Subjects in the Safety population will be analyzed according to the treatment they actually 
received.  In addition to the primary safety analysis the incidence of AEs will be analyzed separately 
for subjects administered an additional disease-modifying anti-rheumatic drug (DMARD) as rescue 
medication during the Treatment Period and for subjects who did not receive rescue medication. 
• 
Pharmacokinetics population:  The PK population will include all subjects who receive at least 1 dose 
of OKZ and have at least 1 evaluable postdose OKZ concentration without important protocol 
deviations or events affecting the PK results. 
Efficacy Analysis 
Efficacy analyses will be conducted using the ITT population.  Supportive analyses of the primary and 
secondary efficacy endpoints will also be conducted using the mITT (if sufficiently different from the ITT 
population) and PP populations.  All comparisons for efficacy assessments will be carried out based on study 
treatment groups to which the subjects were originally randomized. 
No adjustment for covariates will be included in the primary analysis of the primary endpoint or the analysis of 
the secondary and other endpoints that are binary in nature.  Analyses of the continuous efficacy endpoints will 

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be adjusted for baseline values of the corresponding parameters. 
Endpoints for establishing superiority of OKZ to placebo that are binary in nature will be analyzed using a 
2×2 chi-squared test for equality of proportions.  Noninferiority testing for each OKZ dosing regimen versus 
adalimumab with respect to ACR20 rate and DAS28 (CRP) <3.2 response rate at Week 12 will be carried out 
based on a 97.5% 2-sided confidence interval for differences between proportions (OKZ versus adalimumab) 
using the Newcombe hybrid score method and comparing the lower confidence limit with the noninferiority 
margins of -12% and -7.5%, respectively, for the ACR20 and DAS28 (CRP) endpoints.  Endpoints that are 
continuous in nature will be analyzed using an analysis of covariance (ANCOVA) model and adjusted for the 
baseline value of the corresponding parameter. 
Other statistical methods and models will be used to investigate sensitivity to missing data and adherence to 
randomized treatment. 
Multiplicity Adjustment 
Each of the OKZ treatment groups (64 mg q2w and 64 mg q4w) will be compared with placebo for each of the 
primary, secondary, and other endpoints.  If adalimumab is shown to be superior to placebo, then each of the 
OKZ treatment groups will also be compared with adalimumab with respect to the ACR20 response rate and the 
DAS28 (CRP) <3.2 response rate at Week 12.  The overall Type I error rate will be controlled for testing 
hypotheses of the primary and secondary endpoints at the overall 1-sided α = 0.025. 
The following hypothesis tests will be included in the multiplicity control procedure:  superiority of each OKZ 
group versus placebo for the primary endpoint (ACR20 response rate at Week 12), noninferiority of each OKZ 
group versus adalimumab for the secondary endpoint (ACR20 response rate at Week 12), superiority of each 
OKZ group versus placebo for the secondary endpoint DAS28 (CRP) <3.2 response rate at Week 12, 
noninferiority of each OKZ group versus adalimumab for the secondary endpoint DAS28 (CRP) <3.2 response 
rate at Week 12, and superiority of each OKZ group versus placebo for the remaining 3 secondary endpoints 
(HAQ-DI improvement at Week 12, ACR50 at Week 24, and CDAI ≤2.8 at Week 24).  The test for assay 
sensitivity (superiority of adalimumab versus placebo with respect to ACR20 and DAS28 (CRP) <3.2 response 
rate at Week 12) is not included in the multiplicity control strategy due to the ancillary nature of this test and 
will be carried out using a 1-sided α = 0.025 concurrently with the test for noninferiority of OKZ versus 
adalimumab. 
The α-control strategy will be based on using the Bonferroni adjustment for the tests related to each of the 
2 OKZ dose regimens versus placebo (i.e., using the 1-sided α = 0.0125 for each OKZ dose regimen).  A 
gate-keeping strategy will be used for tests associated with the primary and secondary endpoints for each OKZ 
dose regimen independently.  In other words, each OKZ dose regimen will be tested at 1-sided α = 0.0125 for a 
given endpoint if null hypotheses are rejected at 1-sided α = 0.0125 for this dosing regimen for all previous 
endpoints based on the established order.  Conversely, the testing will stop for a given OKZ dose regimen at the 
endpoint for which the null hypothesis is accepted at 1-sided α = 0.0125. 
Pharmacokinetic Analysis 
All subjects will have blood samples collected for potential PK analysis.  At least 33% of subjects in the OKZ 
treatment groups will be randomly selected to have their PK samples analyzed, and OKZ concentrations will be 
summarized descriptively by scheduled collection time and dose regimen.  Time to steady state will be 
graphically evaluated for the OKZ trough data collected throughout the study.  Pharmacokinetic relationships 
will be explored graphically and with linear or nonlinear modeling approaches, as appropriate.  Data collected 
in this study may be combined with data from other OKZ studies in support of population PK analyses. 
Olokizumab concentration data for the subjects not randomly selected as part of the main analysis will only be 
analyzed and presented as part of the PK summaries if the subject has a confirmed positive ADA response in at 
least 1 of the postdose samples collected during the Treatment Period.  Olokizumab results will be presented 
separately for the ADA-positive subjects and combined, as appropriate.  Futhermore, these data may be 
included the population PK analyses or in a separate PK assessment of ADA-positive subjects, as appropriate. 
Safety Analysis 
Major components for the safety analysis will include: 
• 
AEs will be solicited at every study visit, recorded, and coded according to the most recent version of 

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the Medical Dictionary for Regulatory Activities (MedDRA). 
• 
SAEs 
• 
Vital signs and physical examination findings 
• 
Laboratory parameters 
• 
Electrocardiogram (ECG) and other specialized test findings 
All AEs will be analyzed in terms of descriptive statistics and qualitative analysis.  Adverse events will be listed 
for each subject and summarized by system organ class (SOC) and preferred term (PT) according to the most 
recent version of the MedDRA.  In addition, summaries of AEs by severity and relationship to study treatment 
will be presented.  All safety and tolerability data recorded during the study will be listed and summarized by 
treatment group, and over time, as appropriate. 
Safety results will be summarized and presented with particular focus on safety concerns identified as AESIs, 
based either upon the safety data available to date for OKZ or drug class-related events for a biologic 
IL-6 inhibitor. 
Cardiovascular Risk Assessment 
The RA population is known to have an increased risk of cardiovascular (CV) events.  To fully assess the CV 
risks associated with OKZ, the following approach will be used: 
1. Potential major adverse cardiac events (MACE) will be adjudicated by an independent Cardiovascular 
Adjudication Committee (CVAC) according to a predefined charter.  The charter will define the 
criteria, data, and source documentation required to adjudicate all MACE. 
2. Baseline CV risks including individual risk factors (e.g., tobacco use, presence of hypertension, 
diabetes mellitus, and lipid profile) will be assessed. 
3. Known CV risk factors will be monitored and assessed to detect any trends related to long-term 
exposure. 
Safety Follow-up Assessments 
Given the long half-life of OKZ (approximately 31 days), all subjects will be followed for approximately 
5 OKZ half-lives (i.e., 22 weeks) after the final dose of study treatment. 
Subjects who discontinue randomized treatment early (i.e., prior to Week 24) will adhere to the established 
double-blind Treatment Period visit schedule outlined in the study Schedule of Events, as if they were still 
receiving study treatment.  In addition, all subjects who discontinue study treatment early will undergo a full 
safety assessment at the EoT Visit +2 weeks after the last dose of study treatment (OKZ, adalimumab, or 
placebo), as well as extended Safety Follow-Up assessments +4, +8, and +22 weeks after the last dose of study 
treatment. 
For subjects remaining on randomized therapy until the last scheduled dose of study treatment and not entering 
the OLE study, the EoT Visit will be performed at Visit 15 (Week 24) and extended Safety Follow-Up Visits 
will be scheduled for +4, +8, and +22 weeks after the last dose of study treatment (i.e., Visits SFU-1 [Week 26], 
SFU-2 [Week 30], and SFU-3 [Week 44], respectively). 

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TABLE OF CONTENTS 
SIGNATURES..........................................................................................................................2 
EMERGENCY CONTACTS ..................................................................................................4 
SYNOPSIS ................................................................................................................................5 
TABLE OF CONTENTS ......................................................................................................13 
1. 
LIST OF ABBREVIATIONS AND DEFINITIONS OF TERMS ........................21 
2. 
INTRODUCTION......................................................................................................25 
2.1 
Background ....................................................................................................25 
2.2 
Study Treatment ............................................................................................25 
2.2.1 
Olokizumab .......................................................................................25 
2.2.2 
Nonclinical Development ..................................................................27 
2.2.3 
Summary of Clinical Experience .......................................................28 
2.2.3.1 
Summary of Studies in the Olokizumab 
Clinical Program ..............................................................28 
2.2.3.2 
Summary of Safety Data from Olokizumab 
Studies .............................................................................30 
2.2.3.3 
Summary of Efficacy Data from Olokizumab 
Studies .............................................................................37 
2.2.3.4 
Summary of Pharmacokinetic Data from 
Olokizumab Studies .........................................................39 
2.2.4 
Rationale for Dose Selection .............................................................39 
2.3 
Adalimumab ...................................................................................................40 
2.4 
Rationale for the Study ..................................................................................41 
2.5 
Benefit/Risk Assessment ................................................................................41 
3. 
STUDY OBJECTIVES ..............................................................................................43 
3.1 
Primary Objective ..........................................................................................43 
3.2 
Secondary Objectives.....................................................................................43 
4. 
SUMMARY OF STUDY ENDPOINTS ...................................................................44 
4.1 
Primary Efficacy Endpoint ...........................................................................44 
4.2 
Secondary Efficacy Endpoints ......................................................................44 
4.3 
Other Efficacy Endpoints ..............................................................................45 
4.4 
Pharmacokinetic Endpoints ..........................................................................46 
4.5 
Pharmacokinetic/Pharmacodynamic Correlations ....................................46 

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4.6 
Safety Endpoints ............................................................................................47 
5. 
INVESTIGATIONAL PLAN ...................................................................................48 
5.1 
Summary of Study Design .............................................................................48 
5.2 
Discussion of Study Design ............................................................................55 
5.2.1 
Cardiovascular Risk Assessment .......................................................56 
5.2.2 
Safety Follow-up Assessments ..........................................................57 
5.3 
Selection of Study Population .......................................................................58 
5.3.1 
Inclusion Criteria ...............................................................................58 
5.3.2 
Exclusion Criteria ..............................................................................59 
5.3.3 
Disease Diagnostic Criteria ...............................................................65 
5.3.4 
Subject Restrictions ...........................................................................65 
5.3.5 
Premature Subject Withdrawal ..........................................................65 
5.4 
Study Procedures ...........................................................................................66 
5.4.1 
Double-blind Period:  Visit 1 (Screening) through Visit 
15 (Week 24) .....................................................................................68 
5.4.1.1 
Screening (Visit 1, Days -28 to -10) ................................68 
5.4.1.2 
Randomization (Visit 2, Week 0) ....................................70 
5.4.1.3 
Visit 3 (Week 1) ..............................................................72 
5.4.1.4 
Visit 4 (Week 2) ..............................................................73 
5.4.1.5 
Visit 5 (Week 4) ..............................................................73 
5.4.1.6 
Visits 6 and 8 (Weeks 6 and 10) ......................................75 
5.4.1.7 
Visit 7 (Week 8) ..............................................................75 
5.4.1.8 
Visit 9 (Week 12) ............................................................76 
5.4.1.9 
Visit 10 (Week 14) ..........................................................77 
5.4.1.10 
Visit 11 (Week 16) ..........................................................78 
5.4.1.11 
Visit 12 (Week 18) ..........................................................79 
5.4.1.12 
Visit 13 (Week 20) ..........................................................79 
5.4.1.13 
Visit 14 (Week 22) ..........................................................80 
5.4.2 
Visit 15/End of Treatment (2 Weeks after the Last Dose 
of the Study Treatment)/(Week 24) ...................................................81 
5.4.3 
Safety Follow-Up:  Visits SFU-1, SFU-2, and SFU-3 ......................82 
5.4.3.1 
Visit SFU-1 (Week 26 or 4 Weeks after the 
Last Dose of the Study Treatment) ..................................82 
5.4.3.2 
Visit SFU-2 (Week 30 or 8 Weeks after the 
Last Dose of the Study Treatment) ..................................83 
5.4.3.3 
Visit SFU-3 (Week 44 or 22 Weeks after the 
Last Dose of the Study Treatment) ..................................83 
5.4.4 
Screen Failure and Re-Screening ......................................................84 
5.4.5 
Unscheduled Visit .............................................................................84 
6. 
STUDY TREATMENTS ...........................................................................................86 
6.1 
Study Treatment Administered ....................................................................86 
6.2 
Identity of Study Treatment .........................................................................86 

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6.2.1 
Olokizumab .......................................................................................86 
6.2.2 
Adalimumab ......................................................................................87 
6.2.3 
Placebo ..............................................................................................88 
6.3 
Packaging and Labeling ................................................................................88 
6.4 
Storage ............................................................................................................88 
6.5 
Method of Assigning Subjects to Treatment Group ...................................89 
6.6 
Study Treatment Accountability ..................................................................89 
6.7 
Treatment Compliance ..................................................................................89 
6.8 
Preparation and Administration of Study Treatment ................................90 
6.9 
Selection and Timing of Dose for Each Subject ..........................................91 
6.10 
Dose Adjustments...........................................................................................91 
6.11 
Discontinuation of Study Treatment ............................................................91 
6.11.1 
Temporary Discontinuation of Study Treatment ...............................92 
6.11.2 
Permanent Discontinuation of Study Treatment ...............................93 
6.12 
Blinding ...........................................................................................................94 
6.12.1 
Unblinding .........................................................................................95 
6.13 
Prior and Concomitant Treatments .............................................................96 
6.13.1 
Olokizumab Potential Impact on Cytochrome P and 
Transporter Pathways ........................................................................98 
6.13.2 
Allowed Medications .........................................................................99 
6.13.3 
Rescue Medication Starting at Week 14 ...........................................99 
6.14 
Medical Treatment for Subjects after End of Study ................................100 
7. 
EFFICACY, SAFETY, PHARMACOKINETIC, AND HEALTH 
OUTCOME ASSESSMENTS .................................................................................101 
7.1 
Efficacy Assessments ...................................................................................101 
7.1.1 
American College of Rheumatology 20%/50%/70% 
Response Criteria .............................................................................101 
7.1.2 
66-68 Joint Assessment ...................................................................101 
7.1.3 
Patient Global Assessment of Disease Activity (Visual 
Analog Scale) ..................................................................................102 
7.1.4 
Patient Assessment of Pain (Visual Analog Scale) .........................102 
7.1.5 
Physician Global Assessment (Visual Analog Scale) .....................102 
7.1.6 
Disease Activity Score 28-Joint Count (C-Reactive 
Protein) ............................................................................................102 
7.1.7 
Disease Activity Score 28-Joint Count (Erythrocyte 
Sedimentation Rate) ........................................................................103 
7.1.8 
Simplified Disease Activity Index ...................................................103 
7.1.9 
Clinical Disease Activity Index .......................................................104 
7.1.10 
Health Assessments and Patient-Reported Outcomes .....................104 
7.1.10.1 
Health Assessment Questionnaire – Disability 
Index ..............................................................................104 
7.1.10.2 
Short Form-36 ...............................................................104 
7.1.10.3 
European Quality of Life – 5 Dimensions .....................105 

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7.1.10.4 
Work Productivity Survey – Rheumatoid 
Arthritis ..........................................................................106 
7.1.10.5 
Functional Assessment of Chronic Illness 
Therapy – Fatigue Scale ................................................106 
7.2 
Pharmacokinetics .........................................................................................106 
7.3 
Immunogenicity............................................................................................109 
7.4 
Safety .............................................................................................................109 
7.4.1 
Adverse Events ................................................................................110 
7.4.1.1 
Eliciting Adverse Event Information .............................112 
7.4.2 
Serious Adverse Events ...................................................................112 
7.4.2.1 
Lack of Efficacy or Worsening of 
Rheumatoid Arthritis .....................................................114 
7.4.2.2 
Overdose ........................................................................114 
7.4.2.3 
Reporting and Follow-up Requirements for 
Pregnancies ....................................................................115 
7.4.3 
Adverse Events of Special Interest ..................................................116 
7.4.3.1 
Infections .......................................................................117 
7.4.3.2 
Systemic Injection Reactions, Including 
Anaphylaxis ...................................................................117 
7.4.3.3 
Gastrointestinal Perforation ...........................................118 
7.4.3.4 
Hepatotoxicity ...............................................................119 
7.4.3.5 
Injection Site Reactions .................................................120 
7.4.4 
Study Committees ...........................................................................120 
7.4.4.1 
Data Safety Monitoring Board ......................................121 
7.4.4.2 
Cardiovascular Adjudication Committee ......................121 
7.4.5 
Reporting of Adverse Events ...........................................................121 
7.4.5.1 
Patient-Reported Outcome Data ....................................122 
7.4.5.2 
Reporting of Serious Adverse Events ............................123 
7.4.5.3 
Reporting of Serious Adverse Events to 
Regulatory Authorities and Investigators ......................123 
7.4.5.4 
Follow-up of Adverse Events ........................................124 
7.4.5.5 
Follow-up of Serious Adverse Events by the 
Investigator ....................................................................124 
7.4.6 
Clinical Laboratory Evaluations ......................................................124 
7.4.6.1 
Laboratory Parameters ...................................................125 
7.4.7 
Vital Signs, Physical Findings and Other Safety 
Assessments .....................................................................................127 
7.4.7.1 
Physical Examination ....................................................127 
7.4.7.2 
Vital Signs .....................................................................127 
7.4.7.3 
Body Weight and Height ...............................................128 
7.4.7.4 
Electrocardiogram .........................................................128 
7.4.7.5 
Evaluation of Chest X-ray .............................................128 
7.4.8 
Safety Monitoring ............................................................................128 
7.4.9 
Tuberculosis Risk Questionnaires ...................................................129 
7.4.10 
Management of Tuberculosis ..........................................................130 

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7.5 
Appropriateness of Measurements .............................................................130 
8. 
QUALITY CONTROL AND QUALITY ASSURANCE .....................................131 
8.1 
Monitoring ....................................................................................................131 
8.2 
Quality Assurance Audit .............................................................................134 
9. 
STATISTICS ............................................................................................................135 
9.1 
Determination of Sample Size .....................................................................135 
9.2 
Data to be Analyzed .....................................................................................137 
9.3 
Analysis Populations ....................................................................................137 
9.4 
Statistical Methods .......................................................................................138 
9.4.1 
Disposition of Study Subjects .........................................................139 
9.4.2 
Demography and Baseline Characteristics ......................................139 
9.4.3 
Medical History ...............................................................................139 
9.4.4 
Prior and Concomitant Medications ................................................140 
9.4.5 
Exposure and Compliance ...............................................................140 
9.4.6 
Multiple Hypothesis Testing ...........................................................140 
9.4.7 
Primary Efficacy Analysis ...............................................................141 
9.4.8 
Analysis of Secondary and Other Efficacy Endpoints ....................142 
9.4.9 
Handling of Missing Data and Data Following Premature 
Discontinuation of Randomized Treatment .....................................143 
9.4.9.1 
Primary Analysis of Primary, Secondary, and 
Other Efficacy Endpoints ..............................................143 
9.4.9.2 
Sensitivity Analyses of Efficacy Endpoints ..................144 
9.4.10 
Pharmacokinetic Analyses ...............................................................148 
9.4.11 
Pharmacokinetic/Pharmacodynamic Correlations ...........................148 
9.4.12 
Immunogenicity ...............................................................................148 
9.4.13 
Safety Analyses ...............................................................................149 
9.4.13.1 
Adverse Events ..............................................................149 
9.5 
Subgroup Analysis .......................................................................................150 
9.6 
Safety Monitoring Committees ...................................................................150 
9.7 
Interim Analyses ..........................................................................................150 
10. 
ETHICS ....................................................................................................................151 
10.1 
Institutional Review Board/Independent Ethics Committee ...................151 
10.2 
Ethical Conduct of the Study ......................................................................151 
10.3 
Subject Information and Informed Consent .............................................152 
10.4 
Subject Data Protection ...............................................................................152 
11. 
STUDY ADMINISTRATION ................................................................................153 
11.1 
Administrative Structure ............................................................................153 
11.2 
Study and Study Site Closure .....................................................................153 
11.3 
Study Discontinuation .................................................................................153 

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11.4 
Data Handling and Record Keeping ..........................................................154 
11.5 
Direct Access to Source Data/Documents ..................................................154 
11.6 
Investigator Information .............................................................................155 
11.6.1 
Investigator Obligations ..................................................................155 
11.6.2 
Protocol Signatures ..........................................................................155 
11.6.3 
Publication Policy ............................................................................156 
11.7 
Financing and Insurance .............................................................................156 
12. 
REFERENCES .........................................................................................................157 
13. 
APPENDICES ..........................................................................................................159 
13.1 
Appendix 1:  Steinbrocker Functional Classification ...............................159 
13.2 
Appendix 2:  New York Heart Association Functional 
Capacity Classifications...............................................................................160 
13.3 
Appendix 3:  American College of Rheumatology 2010 
Criteria ..........................................................................................................161 
13.4 
Appendix 4:  Methotrexate Dose Reduction Guidelines ..........................162 
13.5 
Appendix 5:  Tuberculosis Risk Questionnaires .......................................164 
13.5.1 
Tuberculosis Risk Questionnaire for Screening Visit .....................164 
5) Does the subject reside in, did the subject ever reside in, or is 
the subject frequently travelling to a TB endemic region 
(as defined in Table 6)? (only applicable for subjects not 
living in an endemic region) ............................................................164 
13.5.2 
Tuberculosis Risk Questionnaire for Post-Screening 
Visits ................................................................................................165 
13.6 
Appendix 6:  Clinical Criteria for Diagnosing Anaphylaxis ....................168 
13.7 
Appendix 7:  Recommendations for Management of Latent 
Tuberculosis..................................................................................................169 
13.8 
Appendix 8:  Protocol Amendment 2 Summary of Changes ...................170 
 

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LIST OF TABLES 
Table 1 
CL04041023 (CREDO 2) Schedule of Events (Double-Blind 
Treatment Period and Safety Follow-Up Period) ............................................51 
Table 2 
Components and Composition of OKZ (CDP6038; L04041) Drug 
Product .............................................................................................................87 
Table 3 
Prohibited Medications ....................................................................................97 
Table 4   
Overview of Sample Collection for PK and ADA Assessments ...................108 
Table 5   
CTCAE Grades and Corresponding AE Severity ..........................................111 
Table 6 
List of Endemic TB Countries (Incidence >50/100,000)...............................166 
 

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LIST OF FIGURES 
Figure 1 
CL04041023 (CREDO 2) Study Schematic ....................................................50 
 

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1. LIST OF ABBREVIATIONS AND DEFINITIONS OF 
TERMS 
Abbreviation 
Definition 
ACR 
American College of Rheumatology 
ACR20 
American College of Rheumatology 20% response criteria 
ACR50 
American College of Rheumatology 50% response criteria 
ACR70 
American College of Rheumatology 70% response criteria 
ADA 
antidrug antibody 
ADL 
activities of daily living 
AE 
adverse event 
AESI 
adverse event of special interest 
ALT 
alanine aminotransferase 
ANA 
antinuclear antibodies 
ANCOVA 
analysis of covariance 
anti-CCP 
anti-citrullinated protein antibody 
anti-HBc 
total hepatitis B core antibody 
anti-HBs 
hepatitis B surface antibody 
ApoA1 
apolipoprotein A1 
ApoB 
apolipoprotein B 
aPTT 
activated partial thromboplastin time 
AST 
aspartate aminotransferase 
ATC 
Anatomic Therapeutic Class 
bDMARD 
biologic disease-modifying anti-rheumatic drug 
BNP 
brain natriuretic peptide 
BP 
blood pressure 
CBC 
complete blood count 
CDAI 
Clinical Disease Activity Index 
CDC 
Centers for Disease Control and Prevention 
cDMARD 
conventional disease-modifying anti-rheumatic drug 
CDR 
complementarity determining region 
CRP 
C-reactive protein 
CTCAE 
Common Terminology Criteria for Adverse Events 
CV 
cardiovascular 
CVAC 
Cardiovascular Adjudication Committee 

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Abbreviation 
Definition 
CYP 
cytochrome P 
DAS28 
Disease Activity Score 28-joint Count 
DMARD 
disease-modifying anti-rheumatic drug 
dsDNA 
double-stranded DNA 
DSMB 
Data Safety Monitoring Board 
ECG 
electrocardiogram 
eCRF 
electronic case report form 
EDC 
Electronic Data Capture 
EQ-5D 
European Quality of Life-5 Dimensions 
EQ-5D VAS 
European Quality of Life-5 Dimensions Visual Analog Scale 
ESR 
erythrocyte sedimentation rate 
EoT 
End of Treatment 
EU 
European Union 
EudraCT 
European Clinical Trials Database 
EULAR 
European League Against Rheumatism 
FACIT-Fatigue 
Functional Assessment of Chronic Illness Therapy – Fatigue Scale 
GCP 
Good Clinical Practice 
GGT 
gamma-glutamyl transferase 
GI 
gastrointestinal 
gp80 
interleukin-6 receptor alpha chain 
gp130 
interleukin-6 receptor signal-transducing subunit 
HAQ-DI 
Health Assessment Questionnaire-Disability Index 
HbA1c 
glycosylated hemoglobin 
HBsAg 
hepatitis B surface antigen 
HCV Ab 
hepatitis C virus antibody 
HDL 
high-density lipoprotein 
HIV 
human immunodeficiency virus 
ICF 
informed consent form 
ICH 
International Council for Harmonisation 
IEC 
Independent Ethics Committee 
Ig 
immunoglobulin 
IGRA 
interferon-gamma release assay 
IL-6 
interleukin-6 
IL-6R 
interleukin-6 receptor 

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Abbreviation 
Definition 
IM 
intramuscular 
INR 
international normalized ratio 
IP 
interphalangeal(s) 
IRB 
Institutional Review Board 
ITT 
intent-to-treat 
IUD 
intrauterine device 
IV 
intravenous(ly) 
IWRS 
Interactive Web Response System 
LDL 
low-density lipoprotein 
LFT 
liver function test 
LS 
least squares 
LTBI 
latent tuberculosis infection 
mAb 
monoclonal antibody 
MACE 
major adverse cardiac event 
MAR 
missing at random 
MCMC 
Markov Chain Monte Carlo 
MCP 
metacarpophalangeal 
MCS 
Mental Component Summary 
MedDRA 
Medical Dictionary for Regulatory Activities 
MI 
multiple imputation 
mITT 
modified intent-to-treat 
MTP 
metatarsophalangeals 
MTX 
methotrexate 
n 
number of available values 
NOAEL 
no observed adverse effect level 
NSAID 
non-steroidal anti-inflammatory drugs 
NT-proBNP 
N-terminal pro-hormone of brain natriuretic peptide 
OKZ 
olokizumab 
OLE 
open-label extension 
PCS 
Physical Component Summary 
PD 
Pharmacodynamic(s) 
PEF 
peak expiratory flow 
PIP 
proximal interphalangeals 
PK 
pharmacokinetic(s) 

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Abbreviation 
Definition 
PP 
Per Protocol 
PRO 
patient-reported outcome 
PT 
preferred term 
q2w 
once every 2 weeks 
q4w 
once every 4 weeks 
QALY 
quality-adjusted life years 
RA 
rheumatoid arthritis 
RBC 
red blood count 
RF 
rheumatoid factor 
SAA 
serum amyloid A 
SAE 
serious adverse event 
SAP 
Statistical Analysis Plan 
SC 
subcutaneous(ly) 
SDAI 
Simplified Disease Activity Index 
SF-36 
Short Form-36 
SJC 
swollen joint count 
SOC 
system organ class 
SOP 
standard operating procedures 
SUSAR 
suspected unexpected serious adverse reaction 
SYK 
spleen tyrosine kinase 
TB 
tuberculosis 
TEAE 
treatment-emergent adverse event 
TJC 
tender joint count 
TNF-α 
tumor necrosis factor-α 
TNFi 
tumor necrosis factor-α inhibitor 
ULN 
upper limit of normal 
US 
United States 
VAS 
Visual Analog Scale 
WBC 
white blood count 
WHO 
World Health Organization 
WHO DDE 
World Health Organization Drug Dictionary Enhanced 
WPS-RA 
Work Productivity Survey – Rheumatoid Arthritis 

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2. INTRODUCTION 
2.1 
Background 
Rheumatoid arthritis (RA) is a chronic immune/inflammatory disease characterized by 
persistent synovitis, with synovial cell proliferation and destructive changes in bone and 
cartilage of multiple joints.  Untreated, RA can lead to destruction, deformation, and 
dysfunction of affected joints, which may result in significant morbidity, and accelerated 
mortality (Jacobsson et al, 2007).  Moderately to severely active RA is often treated with 
disease-modifying anti-rheumatic drugs (DMARDs), with methotrexate (MTX) being the 
most commonly used conventional DMARD (cDMARD).  For patients with an inadequate 
response to cDMARDs, biologic agents (i.e., biologic DMARDs [bDMARDs]) are the next 
step, and include, but are not limited to, tumor necrosis factor-α (TNF-α) inhibitors (TNFi), 
interleukin-6 (IL-6) receptor (IL-6R) antagonists, and T-cell co-stimulation modulators.  
Among these, TNFi, especially in combination with MTX, are used most often 
(Smolen et al, 2014).  Despite early treatment with cDMARD and/or bDMARD therapy, 
approximately 30% to 40% of patients with established RA fail to respond and 50% to 60% 
of patients fail to achieve a major clinical American College of Rheumatology (ACR) 
response or good European League Against Rheumatism (EULAR) response 
(Marchesoni et al, 2009; Rubbert-Roth and Finckh, 2009; Cohen et al, 2008).  Even among 
responders, the majority do not achieve remission.  Thus, there continues to be an unmet 
medical need for new therapeutic approaches in the RA patient population. 
One such therapeutic approach is to target IL-6 directly instead of indirectly via a receptor 
antagonist.  Interleukin-6 is a pleiotropic, pro-inflammatory cytokine produced by a variety 
of cell types including lymphocytes, monocytes, and fibroblasts.  It is involved in multiple 
immunologic processes such as T-cell activation, B-cell proliferation, initiation of 
acute-phase response, stimulation of hematopoietic precursor cell growth, differentiation and 
trafficking, as well as osteoclast differentiation, which subsequently contributes to joint 
destruction.  Due to the key role played by IL-6 in several RA mechanisms, targeting IL-6 is 
considered an attractive therapeutic option. 
2.2 
Study Treatment 
2.2.1 
Olokizumab 
Olokizumab (OKZ; CDP6038; L04041) is being developed by R-Pharm for the treatment of 
moderately to severely active RA.  Olokizumab was previously developed by 
UCB Pharma SA, and was transferred to R-Pharm for further global development. 

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Olokizumab is a humanized (complementarity determining region [CDR]-grafted) 
monoclonal antibody (mAb) of immunoglobulin (Ig) G4/kappa isotype, developed as an 
antagonist of IL-6 that is anticipated to have utility in a wide range of 
autoimmune/inflammatory conditions. 
Interleukin-6 is a multifunctional cytokine that has been shown to play a central role in 
immune regulation, inflammation, hemopoiesis, and oncogenesis, and has been linked to a 
wide range of human diseases.  It is a glycoprotein of 184 amino acids that is produced by a 
wide range of cell types including monocytes/macrophages, fibroblasts, epidermal 
keratinocytes, vascular endothelial cells, renal mesangial cells, glial cells, chondrocytes, 
T and B cells, and some tumor cells.  Stimuli of IL-6 production include TNF-α, 
lipopolysaccharides, and viral infections; inhibitors of IL-6 production include 
glucocorticoids.  Within the context of an immune and inflammatory response, IL-6 has been 
shown to exert a wide range of effects, such as those described below: 
• 
Induction of antibody production by B cells 
• 
Important role in the generation of a subpopulation of T-helper cells, Th17 cells, which 
may play an important pathogenic role in a number of autoimmune diseases 
• 
Key driver of the acute phase response (the increased production, mainly by the liver, of 
soluble factors, such as C-reactive protein [CRP] and serum amyloid A [SAA], during 
inflammation) 
In developing an antagonist mAb to IL-6, potential therapeutic strategies include inhibition 
of nonsignaling IL-6R receptor alpha chain (gp80), which gives the IL-6 family members 
their specificity, and the IL-6R signal-transducing subunit (gp130).  The identification of the 
optimum epitope to target on IL-6 (binding IL-6 in a region that is predicted to be involved 
with gp80 or gp130) was conducted using antibodies with similar affinities, but different 
binding axes, as determined by surface plasmon resonance (BIAcore).  Antibodies directed 
against mouse or human IL-6 that targeted the gp130 axis were more potent than those that 
targeted the gp80 axis in inhibiting IL-6-dependent phosphorylation of signal transducer and 
activator of transcription 3 in in vitro cell-based assays and in inhibiting the secretion of the 
acute phase protein SAA in vivo.  Olokizumab binds to a region of IL-6 involved with 
gp130 binding.  The epitope recognized by OKZ was initially established by BIAcore and 
confirmed by nuclear magnetic resonance studies.  Olokizumab has been shown to have a 
high affinity for human IL-6 as determined using BIAcore analysis.  In vitro whole blood and 
cell line assays as well as animal studies have shown that OKZ potently neutralizes 
IL-6-mediated effects in vitro and in vivo, respectively.  Data suggest that OKZ neither 
significantly binds to nor affects the function of other IL-6 family members, nor does it 
appear to activate the IL-6 signaling pathway under a range of conditions tested. 

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Currently, patients with moderately to severely active RA are often treated with cDMARDs, 
with MTX being the most commonly used.  For patients with an inadequate response to 
cDMARDs, biologic agents that inhibit TNF-α, especially in combination with MTX, are 
indicated (Smolen et al, 2014).  Nonetheless, a substantial proportion of patients receiving 
biologics (i.e., approximately 40% to 50% of those receiving TNFi therapy) have inadequate 
response to such treatment (Marchesoni et al, 2009; Rubbert-Roth and Finckh, 2009; 
Cohen et al, 2008).  Thus, there is an unmet need for new therapeutic approaches utilizing 
alternative modes of action in this patient population. 
Olokizumab is being developed to address the unmet needs of patients with these severe, 
progressive, and debilitating disorders through a different therapeutic approach, utilizing an 
alternative mode of action.  Within the class of therapeutic antibodies targeting the 
IL-6 pathway, OKZ is anticipated to be more potent because of its high affinity for IL-6 and 
its axis of intervention (inhibiting the interaction between IL-6 and gp130).  Also, since OKZ 
is of the Ig G4 isotype, it would not be expected to mediate significant levels of 
antibody-mediated complement fixation or cell-mediated cytotoxicity. 
Olokizumab is being developed for the treatment of RA to reduce signs and symptoms of 
disease, improve physical functioning, and induce higher levels of response.  The proposed 
indication for OKZ is to be used in combination with MTX for the treatment of moderately to 
severely active RA in adult patients who have been inadequately controlled by MTX 
treatment.  A separate study is planned to address the use of OKZ in a similar RA population 
who are either inadequately controlled or intolerant to previous TNFi therapy. 
Refer to the most recent version of the Investigator’s Brochure for additional information on 
OKZ including: 
• 
In vitro activity 
• 
Nonclinical pharmacokinetics (PK) and product metabolism 
• 
Nonclinical pharmacology and toxicology 
• 
PK, efficacy, and safety profile in clinical studies 
2.2.2 
Nonclinical Development 
Nonclinical studies have shown that inhibition of IL-6 signaling does not result in any 
life-threatening effects either in animal models or formal toxicology studies.  There is no 
evidence from in vitro and in vivo nonclinical data to suggest that there is a risk of OKZ 
inducing an uncontrolled biological cascade.  All nonclinical data generated to date are 
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in vitro assay data suggest that OKZ neutralizes the biological effects of IL-6 in both humans 
and cynomolgus monkeys with similar potency.  Therefore, the cynomolgus monkey is 
considered an appropriate species to evaluate the potential toxicity of OKZ.  Due to the lack 
of activity of OKZ on IL-6 in rats and mice, the toxicology program was restricted to using a 
single non-rodent species, the cynomolgus monkey. 
Olokizumab is well tolerated in the cynomolgus monkey, with a no observed adverse effect 
level (NOAEL) of 200 mg/kg/week and 50 mg/kg/week after intravenous (IV) and 
subcutaneous (SC) administration, respectively. 
In a study aimed at assessing the effects of OKZ on prenatal and postnatal development in 
the cynomolgus monkey, the treatment was well tolerated during the pregnancy and had no 
abortifacient effect.  However, some OKZ-treated females experienced dystocia and 
placental retention, sometimes associated with significant urogenital bleeding, which resulted 
in some deaths.  Given similar human and cynomolgus monkey physiology during pregnancy 
and the risk of dystocia and hemorrhage at parturition, inhibition of IL-6 signaling during 
pregnancy is not recommended. 
Taken together, the currently completed nonclinical studies support continued clinical 
development for marketing approval of OKZ. 
2.2.3 
Summary of Clinical Experience 
Nonclinical data were deemed sufficient to support clinical development of OKZ in humans 
for the treatment of moderately to severely active RA (lead indication), other auto-immune 
inflammatory diseases, and oncological diseases with IL-6 pathophysiology. 
The safety, efficacy, and PK of OKZ have been investigated in 3 Phase I clinical studies 
(RA0001, RA0010, and RA0074) and 2 Phase II clinical studies (RA0056 and RA0083).  
The safety and efficacy of OKZ were also studied in long-term open-label extension (OLE) 
studies for both Phase II studies (RA0057 and RA0089). 
The information in this section of the protocol regarding clinical studies with OKZ is current 
as of 29 January 2016 (for updated information on results of clinical studies, refer to the most 
recent version of the Investigator’s Brochure). 
2.2.3.1 
Summary of Studies in the Olokizumab Clinical Program 
Study RA0001 
Study RA0001 was a Phase I, randomized, double-blind, placebo-controlled, dose-escalating, 
first-in-human study that investigated the safety and tolerability, PK, and pharmacodynamics 

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(PD) of IV OKZ in 67 healthy Caucasian male subjects (33 on active drug and 34 on 
placebo) with a 99-day follow-up. 
Study RA0010 
Study RA0010 was a Phase I/IIa study to characterize the PK/PD relationship between 
systemic OKZ exposure and CRP suppression, following single-dose IV and SC OKZ 
administration to subjects with RA and to evaluate the safety and tolerability of single doses 
of OKZ in RA subjects over a therapeutic dose range (as defined by CRP suppression). 
Study RA0074 
Study RA0074 was a Phase I study in healthy Japanese subjects undertaken to evaluate the 
PK, PD, safety, and tolerability of SC OKZ prior to undertaking clinical studies in Japanese 
subjects with RA. 
Studies RA0056 and RA0057 
Study RA0056 was a Phase II, multicenter, randomized, double-blind, placebo- and 
active-controlled study of OKZ in 221 subjects in the United States (US) and Europe with 
active RA who had previously failed TNFi therapy, administered SC at various doses and 
frequencies to evaluate the efficacy relative to placebo.  Eligible subjects were randomized to 
1 of 9 treatment groups:  OKZ 60 mg SC once every 2 weeks (q2w), OKZ 60 mg SC once 
every 4 weeks (q4w), OKZ 120 mg SC q2w, OKZ 120 mg SC q4w, OKZ 240 mg SC q2w, 
OKZ 240 mg SC q4w, placebo SC q2w, placebo SC q4w, and tocilizumab 8 mg/kg IV q4w. 
Study RA0057 was the long-term OLE study of RA0056, which was open for enrollment of 
subjects who had completed the Week 12 visit of Study RA0056.  A total of 190 subjects in 
Study RA0057 received SC injections of OKZ 120 mg q2w throughout the study, regardless 
of their treatment assignment in RA0056. 
Studies RA0083 and RA0089 
Study RA0083 was a Phase II, multicenter, randomized, double-blind, placebo-controlled, 
dose-ranging study of OKZ in 119 Asian subjects with moderately to severely active RA who 
had previously failed TNFi therapy and were on a stable dose of MTX.  Eligible subjects 
were randomized to 1 of 6 treatment groups:  OKZ 60 mg q2w, 60 mg q4w, 120 mg q2w, 
120 mg q4w, 240 mg q4w, or placebo q2w, all administered SC. 
Study RA0089 was the long-term OLE study of RA0083, which was open for enrollment of 
subjects who had completed the Week 12 visit of Study RA0083.  A total of 103 subjects in 
Study RA0089 received SC injections of OKZ 120 mg q2w throughout the study, regardless 
of their treatment assignment in Study RA0083. 

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2.2.3.2 
Summary of Safety Data from Olokizumab Studies 
Study RA0001 
There were no deaths or serious adverse events (SAEs) reported during the study and no 
subject discontinued the study as a result of an adverse event (AE).  The overall incidence of 
treatment-emergent adverse events (TEAEs) was slightly higher in the placebo group overall 
(18 subjects [52.9%]; 35 events) than in the OKZ treatment groups overall (11 subjects 
[33.3%]; 26 events).  No increase in the incidence of TEAEs was observed with increasing 
dose of OKZ. 
The most commonly reported TEAEs were in the system organ classes (SOCs) of 
gastrointestinal (GI) disorders, general disorders, and infections and infestations.  The 
incidence of GI disorders was similar in both the OKZ group overall (12.1%) and the placebo 
group overall (11.8%); however, at the preferred term (PT) level, abdominal distension 
(1 subject [3.0%]), abdominal pain (1 subject [3.0%]), and vomiting (2 subjects [6.1%]) were 
only seen in the OKZ group.  The most frequently reported TEAEs (occurring in ≥3% of 
subjects in any treatment group) by PT were influenza-like illness (11.8% placebo, 
6.1% OKZ), headache (11.8% placebo, 3.0% OKZ), nasopharyngitis (8.8% placebo, 
3.0% OKZ), rhinitis (8.8% placebo, 0.0% OKZ), diarrhea (5.9% placebo, 3.0% OKZ), and 
vomiting (0.0% placebo, 6.1% OKZ). 
For the majority of hematology and clinical chemistry parameters there were no clinically 
significant differences in mean actual values between the placebo group and OKZ treatment 
groups, and no clinically significant fluctuations in mean actual values over time. 
Study RA0010 
There were no deaths during Study RA0010.  Two subjects (1 subject in the placebo 
IV+MTX group and 1 subject in the OKZ 1 mg/kg SC+MTX group) experienced SAEs:  
Bowen’s disease and worsening of RA, respectively.  Neither event was considered by the 
Investigator to be related to the study treatment.  One subject in the placebo+MTX overall 
group withdrew from the study as a result of exacerbation of their RA.  All subjects (100%) 
in the placebo+MTX overall group and 96.7% of subjects in the OKZ+MTX overall group 
experienced at least 1 TEAE.  The incidence of TEAEs did not increase with increasing dose 
of OKZ+MTX administered; although, a slightly higher number of AEs were experienced by 
subjects in the OKZ (1 mg/kg and 3 mg/kg)+MTX SC treatment groups 
(16 subjects [94.12%]; 101 events) compared with the OKZ (0.1 mg/kg and 1 mg/kg) + MTX 
IV treatment groups (13 subjects [100%]; 54 events). 

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Study RA0074 
In Study RA0074, there were no deaths, SAEs, severe AEs, or AEs that led to 
discontinuation.  The incidence of TEAEs was higher in the OKZ groups compared with the 
placebo group.  In the placebo group, 50% of subjects (2 of 4) had TEAEs (6 events), 
compared with 75% of subjects (3 of 4) in the OKZ 3 mg/kg treatment group (11 events), and 
100% of subjects (4 of 4) in each of the OKZ 0.3 mg/kg (16 events), OKZ 1 mg/kg 
(25 events), and OKZ 6 mg/kg (24 events) treatment groups.  The incidence of TEAEs did 
not appear to be related to the dose of OKZ administered. 
The most commonly reported TEAEs were within the SOCs of general disorders and 
administration site conditions; investigations; GI disorders; infections and infestations; 
respiratory, thoracic and mediastinal disorders; and skin and SC tissue disorders.  Events 
occurring in >20% of subjects in the OKZ overall group, by PT, included injection site 
hematoma (31.3%), abdominal pain (25.0%), and alanine aminotransferase (ALT) increased 
(25.0%).  The overall incidence of TEAEs in the OKZ-treated groups was higher than in the 
placebo-treated group, but given the small number of subjects in each treatment group, it is 
not possible to make any meaningful conclusions. 
In Studies RA0001, RA0010, and RA0074, OKZ was tolerated at doses of up to 3 mg/kg SC 
(all studies), 6 mg/kg SC (Study RA0074 only), and 10 mg/kg IV (Study RA0001 only).  
There were no deaths in any of these studies and only 2 SAEs in Study RA0010.  One subject 
in Study RA0010 discontinued the study early due to an AE (exacerbation of RA symptoms), 
but no subjects withdrew from Study RA0001 or Study RA0074 due to TEAEs. 
Study RA0056 
In Study RA0056, OKZ was well tolerated at doses of up to 240 mg q2w.  Serious AEs were 
reported by 6 subjects in the OKZ groups and 3 subjects in the placebo groups.  A total of 
11 subjects in the OKZ and placebo groups discontinued due to TEAEs (10 subjects in the 
OKZ group and 1 subject in the placebo group).  Overall, 10 subjects in the OKZ groups 
reported 13 TEAEs leading to discontinuation, with the most subjects discontinuing due to 
TEAEs in the OKZ 60 mg q4w group (5 subjects [22.7%] compared with 2 subjects [10%] in 
the OKZ 60 mg q2w group, 1 subject [4.5%] in the OKZ 120 mg q2w group, and 2 subjects 
[8.7%] in the OKZ 240 mg q2w group).  One subject (4.5%) in the placebo q2w group also 
discontinued due to TEAEs.  No TEAE PT leading to discontinuation was reported by more 
than 1 subject in any treatment group. 
Treatment-emergent AEs were reported by 17 subjects (77.3%) in the placebo q4w group, 
19 subjects (86.4%) in the placebo q2w group, 18 subjects (81.8%) in the OKZ 60 mg 
q4w group, 14 subjects (70.0%) in the OKZ 60 mg q2w group, 20 subjects (87.0%) in the 

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OKZ 120 mg q4w group, 14 subjects (63.6%) in the OKZ 120 mg q2w group, and 
19 subjects each in the OKZ 240 mg q4w (86.4%) and OKZ 240 mg q2w (82.6%) groups.  
The majority of these TEAEs were reported during the Treatment Period. 
The most commonly reported TEAEs (>10% of subjects in any treatment group) in the 
OKZ q4w, OKZ q2w, and placebo groups were in the SOCs of GI disorders, general 
disorders and administration site conditions, infections and infestations, investigations, and 
nervous system disorders. 
The TEAEs that occurred with the greatest incidence (i.e., occurring in ≥10% of subjects) in 
any OKZ treatment group included:  diarrhea, injection site reaction, injection site pruritus, 
nasopharyngitis, upper respiratory tract infection, urinary tract infection, ALT increased, 
aspartate aminotransferase (AST) increased, and liver function test (LFT) abnormal. 
When considering TEAEs by grade according to the Common Terminology Criteria for 
Adverse Events (CTCAE), the majority of subjects in all treatment groups (≥59.1%) had 
CTCAE Grade 1 TEAEs.  The CTCAE Grade 3 TEAEs included head injury, anemia, chest 
pain, basal cell carcinoma, injection site reaction, contusion, abscess limb, laceration, 
musculoskeletal pain, mania, breast discharge, breast swelling, erythema, pruritus, 
osteoarthritis, ligament sprain, back pain, cellulitis, and spinal cord compression.  No 
CTCAE Grade 3 TEAE was reported by more than 1 subject.  Of the CTCAE 
Grade 3 TEAEs, all were reported during the Treatment Period, with the exception of 
1 subject in the OKZ 60 mg q4w (4.5%) group who reported CTCAE Grade 3 TEAEs during 
the Safety Follow-Up Period.  No CTCAE Grade 4 or 5 TEAEs were observed in any 
treatment group.  There were no deaths reported in Study RA0056.  Overall, 6 subjects in the 
OKZ groups reported 7 SAEs (3 subjects [15.0%] reporting 3 events in the OKZ 60 mg q2w 
group [chest pain, basal cell carcinoma, and mania], 1 subject [4.5%] reporting 1 event in the 
OKZ 60 mg q4w group [LFT abnormal], and 2 subjects [9.1%] reporting 3 events in the 
OKZ 240 mg q4w group [pneumonia, perineal abscess, and back pain]).  No subjects in the 
OKZ 120 mg q2w or q4w groups or in the OKZ 240 mg q2w group experienced SAEs.  A 
total of 3 subjects in the placebo treatment groups reported 3 SAEs (2 subjects [9.1%] 
reporting 2 events in the placebo q2w group and 1 subject [4.5%] reporting 1 event in the 
placebo q4w group). 
Of the SAEs reported in the OKZ groups, only LFT abnormal (1 subject [4.5%] in the OKZ 
60 mg q4w group) was judged to be related to the study treatment by the Investigator.  
Additionally, only the SAEs of LFT abnormal (1 subject [4.5%] in the OKZ 60 mg q4w 
group), and chest pain (1 subject [5.0%] in the OKZ 60 mg q2w group), led to 
discontinuation from the study.  All of the SAEs were reported as recovered/resolved with 
the exception of anemia (1 subject [4.5%] in the placebo q4w group). 

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Study RA0057 
Overall, 33 subjects reported 321 TEAEs leading to discontinuation during the study.  The 
most common TEAE PT leading to discontinuation was upper respiratory tract infection 
(8 subjects [4.2%]). 
Three additional subjects experienced TEAEs leading to permanent discontinuation of OKZ 
(bladder cancer, palmar pustular dermatitis, and cholecystitis chronic).  These subjects were 
not represented within the patient data sets or tables as this additional information was based 
on source documentation received from the respective study sites after the clinical database 
had been locked. 
Treatment-emergent AEs were reported by 178 subjects (93.7%).  The most commonly 
reported TEAEs (>10% of subjects) were in the SOCs of infections and infestations; 
musculoskeletal and connective tissue disorders; GI disorders; investigations; general 
disorders and administration site conditions; respiratory, thoracic and mediastinal disorders; 
skin and SC tissue disorders; injury, poisoning and procedural complications; nervous system 
disorders; metabolism and nutrition disorders; and vascular disorders. 
When considering TEAEs by CTCAE grade, the majority of subjects had CTCAE 
Grade 1 (85.8%) and/or Grade 2 (56.3%) TEAEs.  At the SOC level, infections and 
infestations was the TEAE that occurred most frequently (68.4% of subjects), with a 
maximum intensity of mild (102 subjects [53.7%]; 239 events), moderate (58 subjects 
[30.5%]; 103 events), and severe (14 subjects [7.4%]; 17 events).  At the PT level, CTCAE 
Grade 3 TEAEs that occurred in ≥2 subjects included cellulitis, pneumonia, staphylococcal 
infection, urinary tract infection, back pain, RA, pulmonary embolism, and chest pain.  No 
CTCAE Grade 3 TEAE was reported by more than 3 subjects for any PT.  A total of 
93 subjects (48.9%) reported TEAEs (281 events) that were judged as related to the study 
treatment by the Investigator.  The TEAE most frequently assessed as being drug-related by 
the Investigator was injection site reaction SOC (21 subjects [11.1%]; 29 events). 
There were 2 deaths reported in Study RA0057.  The first subject experienced the 
treatment-emergent SAE of a road traffic accident, reported as severe and considered not 
related to the study treatment.  The second subject had multiple co-morbidities and 
experienced necrotizing fasciitis, acute renal failure, multi-system organ failure, and sepsis 
after approximately 9 months of exposure to OKZ.  Two months prior to death, OKZ was 
discontinued as the subject was lost to follow-up.  The Investigator and Sponsor judged that 
necrotizing fasciitis and sepsis were related to the study treatment, and that acute renal failure 
and multi-system organ failure were not related to the study treatment. 

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A total of 50 subjects (26.3%) reported 83 treatment-emergent SAEs.  The highest incidence 
of events was observed for the SOC of infections and infestations (19 subjects [10.0%]; 
24 events).  At the PT level, chest pain occurred with the highest frequency (4 subjects 
[2.1%]; 4 events). 
Of the SAEs reported, diverticulitis (2 subjects), diverticular perforation, pneumonia, bladder 
cancer, furuncle, necrotizing fasciitis, sepsis, B-cell lymphoma, elevated lactate 
dehydrogenase, elevated liver enzymes, and cellulitis (1 subject each) were judged to be 
related to the study treatment by both the Investigator and Sponsor. 
One SAE (maculopapular rash) was judged related to the study treatment by the Investigator, 
but not related by the Sponsor.  One SAE (staphylococcal infection) was judged not related 
to the study treatment by the Investigator, but related by the Sponsor. 
The remaining SAEs were judged not related to the study treatment by both the Investigator 
and Sponsor. 
Study RA0083 
Safety findings in Study RA0083 were consistent with the safety profile expected with this 
class of drug.  Serious AEs were reported by 2 subjects (6.9%) in the placebo group and 
2 subjects each in the OKZ treatment groups.  Overall, 2 subjects in the placebo group and 
5 subjects in the OKZ treatment groups reported a total of 9 TEAEs leading to 
discontinuation.  Discontinuations due to TEAEs were reported by very few subjects in any 
4-week cumulative dose group:  2 subjects each in the placebo, OKZ 60 mg, and OKZ 
240 mg groups and 1 subject in the OKZ 120 mg group.  Of the 7 subjects overall who 
discontinued due to TEAEs, a similar number of subjects discontinued during the Treatment 
Period (3 subjects overall) and the Safety Follow-Up Period (4 subjects overall).  With the 
exception of 2 subjects in the placebo group who discontinued due to RA exacerbation, no 
TEAE PT leading to discontinuation was reported by more than 1 subject in any treatment 
group. 
Treatment-emergent AEs were reported at similar incidences across the OKZ 4-week 
cumulative dose groups and the placebo group. 
The most commonly reported TEAEs (>10% in any treatment group) were in the SOCs of 
infections and infestations, GI disorders, general disorders and administration site conditions, 
hepatobiliary disorders, nervous system disorders, and skin and SC disorders.  
Nasopharyngitis, headache, and rash occurred with the greatest incidence in the all OKZ 
group.  The incidence of diarrhea was higher in the placebo group than the all OKZ group.  

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The incidence of TEAEs of hepatic function abnormal and nasopharyngitis increased with 
higher cumulative doses of OKZ. 
When considering TEAEs by CTCAE grade, there were no Grade 4 or 5 TEAEs. 
The majority of subjects across all 4-week cumulative dose groups (≥56.3%) had CTCAE 
Grade 1 TEAEs.  Three subjects reported Grade 3 TEAEs:  1 subject in the OKZ 120 mg 
4-week cumulative dose group reported face edema and 2 subjects in the placebo group 
reported exacerbation of RA. 
Treatment-emergent AEs considered related to the study treatment by the Investigator were 
reported at a higher incidence across the OKZ 4-week cumulative dose groups compared 
with the placebo group.  The overall incidence of drug-related TEAEs was highest in the 
OKZ 60 mg 4-week cumulative dose group.  The most commonly reported individual 
drug-related TEAEs were nasopharyngitis, stomatitis, injection site erythema, rash, and 
headache.  The incidences of drug-related TEAEs of injection site erythema, injection site 
swelling, and nasopharyngitis were highest in the OKZ 240 mg 4-week cumulative dose 
group.  There were no deaths reported in any treatment group during Study RA0083.  Serious 
TEAEs were reported by 2 subjects (6.9%) in the placebo group (RA in both subjects; both 
events led to study discontinuation and were considered resolved after 44 days) and 1 subject 
each (3.1% and 3.8%) in the OKZ 60 and 240 mg 4-week cumulative dose groups (cellulitis 
and pneumonia, respectively).  No SAEs were reported by subjects in the OKZ 120 mg 
4-week cumulative dose group.  Both the cellulitis and pneumonia SAEs in subjects 
receiving OKZ were reported as moderate in intensity and not related to the study treatment.  
The cellulitis event led to study discontinuation and resolved after 11 days.  The pneumonia 
event required hospitalization, but the subject continued in the study and the event resolved 
after 57 days. 
Study RA0089 
Overall, 7 subjects (6.8%) reported 33 TEAEs leading to discontinuation during the study.  
The mostly commonly reported TEAEs leading to discontinuation were in the SOC of 
infections and infestations (5 subjects [4.9%]). 
Treatment-emergent AEs were reported by 90 subjects (87.4%).  The most commonly 
reported TEAEs (>10% of subjects) were in the SOCs of infections and infestations; GI 
disorders; general disorders and administration site condition; skin and SC tissue disorders; 
investigations; injury, poisoning and procedural complications; respiratory, thoracic and 
mediastinal disorders; musculoskeletal and connective tissue disorders; nervous system 
disorders; eye disorders; metabolism and nutrition disorders; and vascular disorders. 

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When considering TEAEs by CTCAE grade, the majority of subjects (89 subjects [86.4%]; 
571 events) had CTCAE Grade 1 TEAEs.  At the SOC level, infections and infestations 
occurred most frequently (65.0% of subjects) with a maximum intensity of mild (62 subjects 
[60.2%]; 135 events), moderate (9 subjects [8.7%]; 16 events), or severe (4 subjects [3.9%]; 
4 events). 
A total of 73 subjects (70.9%) reported TEAEs that were judged to be related to the study 
treatment by the Investigator.  Within the SOC of infections and infestations, 44 subjects 
(42.7%) reported 89 TEAEs that were judged to be related to the study treatment by the 
Investigator. 
There were no deaths reported in Study RA0089. 
A total of 14 subjects (13.6%) reported 20 SAEs.  The highest incidence of events was 
observed for the infections and infestations SOC (7 subjects [6.8%]).  At the PT level, 
cellulitis occurred with the highest frequency (2 subjects [1.9%]; 2 events).  No other PT was 
reported more than once. 
Of the SAEs reported, cellulitis (2 subjects), gastroenteritis, pleurisy, pneumonia, elevated 
liver enzymes, pulmonary tuberculosis (TB), interstitial lung disease, and epiglottitis 
(1 subject each) were judged to be related to the study treatment by both the Investigator and 
Sponsor. 
One SAE (infectious pleural effusion) was judged to be related to the study treatment by the 
Investigator, but not related by the Sponsor. 
There was 1 subject who reported an SAE of pulmonary TB that was considered by the 
Investigator to be related to OKZ.  The subject had no history of active or latent TB, chronic 
productive cough, persistent fever, persistent asthenia, human immunodeficiency virus (HIV) 
infection, or organ transplants.  Chest imaging revealed increased infiltration of bilateral lung 
fields, borderline heart size, and calcified lesion over the left aspect of the upper 
mediastinum.  Chest X-ray and bronchial culture were positive for TB, and the diagnosis was 
confirmed by acid fast bacillus stain.  The subject was treated with 250 mg tranexamic acid 
4 times per day/capsule, rifampin 5 tablets daily, and ethambutol 800 mg daily for TB.  There 
was no action taken with OKZ due to the event, as the event was confirmed during the 
follow-up period of the study, after the last dose of study treatment had been administered.  
The subject completed the entire anti-TB treatment course, and the event resolved.  The 
Investigator and the Sponsor assessed the event to be related to OKZ. 

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2.2.3.3 
Summary of Efficacy Data from Olokizumab Studies 
Study RA0010 
Preliminary efficacy data in terms of the Disease Activity Score 28-joint Count 
(DAS28) (CRP) were obtained in Study RA0010.  An indication of the efficacy of OKZ was 
obtained in the subpopulation of subjects with a baseline DAS28 (CRP) of >3.2 (i.e., those 
with moderate to high disease activity).  Although the number of subjects falling into this 
moderate to high category was small, improvements in DAS28 (CRP) were seen following 
OKZ+MTX administration, especially in the OKZ 1 mg/kg SC+MTX group. 
Study RA0056 
In Study RA0056, a greater improvement in least squares (LS) mean DAS28 (CRP) from 
baseline at Week 12 was observed across all OKZ treatment groups compared with the 
placebo groups, with the greatest improvement observed in the OKZ 240 mg q2w group.  
The overall dose-response trend (across the q4w and q2w dosing frequencies) was 
statistically significant (p<0.0001).  Comparisons of dosing frequency (q2w versus q4w) and 
dose-by-dose frequency interactions (q2w trend versus q4w trend) were not statistically 
significant.  The secondary efficacy variables were ACR 20% (ACR20), 50% (ACR50), and 
70% (ACR70) response criteria at Week 12 for the OKZ and placebo treatment groups.  The 
ACR20 and ACR50 estimated response rates at Week 12 were higher in all OKZ treatment 
groups compared with the placebo groups.  Very few subjects in any treatment group were 
ACR70 responders; however, those subjects that were ACR70 responders were all in the 
OKZ treatment groups. 
Study RA0083 
In Study RA0083, a greater improvement in LS mean change from baseline in DAS28 (CRP) 
at Week 12 was observed across all OKZ 4-week cumulative dose groups compared with the 
placebo group, with the greatest improvement observed in the OKZ 240 mg 4-week 
cumulative dose group.  The overall dose-response trend (for the 4-week cumulative dose) 
was statistically significant (p<0.0001), as were the differences between each treatment 
group versus placebo (p<0.0001 for each treatment group).  The comparisons of dosing 
frequency (OKZ 120 mg group [60 mg q2w versus 120 mg q4w] and OKZ 240 mg [120 mg 
q2w versus 240 mg q4w]), dosing frequency effect (q4w versus q2w dose frequency), and 
dose frequency interactions (individual doses by dose frequency interaction) were not 
statistically significant.  The ACR20 and ACR50 estimated response rates at Week 12 were 
higher in all OKZ 4-week cumulative dose groups compared with the placebo group.  The 
overall dose-response trend at Week 12 was statistically significant, as were all treatment 

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group comparisons versus placebo.  Very few subjects were ACR70 responders; however, 
14 of the 15 subjects that were ACR70 responders were in the OKZ treatment groups. 
 Study RA0057 
Study RA0057 was designed to collect safety data and had no primary efficacy endpoints; 
however, some trends could be identified.  All treatment groups described in 
Study RA0057 belong to Study RA0056, from which the subjects were transferred to a single 
treatment group of 120 mg q2w in Study RA0057.  The change in DAS28 (CRP) was 
summarized at Weeks 12, 24, and 48 relative to baseline (Week 0) in Study RA0056 and 
baseline in Study RA0057.  Relative to the Study RA0057 baseline, all treatment groups 
(except OKZ 60 mg q4w group at Week 12) showed a further decrease in DAS28 (CRP) at 
Weeks 12, 24, and 48.  Subjects switching from the placebo group in Study RA0056 to 
treatment with OKZ 120 mg q2w in Study RA0057 showed a marked improvement in 
DAS28 (CRP), similar to the improvement shown by subjects in the OKZ groups in the 
parent RA0056 study.  The ACR20, ACR50, and ACR70 response criteria were summarized 
at Weeks 0, 12, 24, and 48.  Relative to the Study RA0056 baseline, a clinically relevant 
proportion of subjects achieved ACR20 at Week 24 across all the treatment groups, ranging 
from 30.0% of subjects in the OKZ 240 mg q4w group to 66.7% of subjects in the OKZ 
240 mg q2w group.  Fewer subjects achieved ACR50 at Week 24, ranging from 11.8% to 
43.8% of subjects.  Very few subjects achieved ACR70 at Week 24, ranging from 0% to 25% 
of subjects. 
Study RA0089 
All treatment groups described in Study RA0089 belong to Study RA0083, from which the 
subjects were transferred to a single treatment group of 120 mg q2w in Study RA0089.  The 
baseline values in Study RA0089 corresponded to the baseline values from Study RA0083, 
and the Week 0 values in Study RA0089 corresponded to the Week 12 values from 
Study RA0083.  The change in DAS28 (CRP) was summarized at Weeks 12, 24, and 
48 relative to baseline (Week 0) in Study RA0083 and baseline in Study RA0089.  Relative 
to the Study RA0089 baseline, all treatment groups showed a notable decrease in 
DAS28 (CRP) at Weeks 12, 24, and 48.  Subjects assigned to placebo in 
Study RA0083 showed marked improvements in all parameters of disease activity after they 
began therapy with OKZ in Study RA0089, with an improvement in DAS28 (CRP) similar to 
the improvement shown by subjects in the OKZ groups in the parent RA0083 study.  The 
ACR20, ACR50, and ACR70 response criteria were summarized at Weeks 0, 12, 24, and 48.  
Relative to the Study RA0083 baseline, a clinically relevant proportion of subjects achieved 
ACR20 at Week 24 across all the treatment groups, ranging from 46.7% of subjects in the 
OKZ 120 mg q4w treatment group to 81.8% in OKZ 240 mg q4w treatment group.  Fewer 

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subjects achieved ACR50 at Week 24, ranging from 40.0% to 63.6% of subjects.  Only a 
small proportion of subjects achieved ACR70 at Week 24, ranging from 10.0% to 54.5% of 
subjects. 
2.2.3.4 
Summary of Pharmacokinetic Data from Olokizumab Studies 
Studies RA0001, RA0010, and RA0056 
Single dose PK of OKZ were studied in Studies RA0001 (healthy non-Asian), 
RA0074 (healthy Japanese), and RA0010 (subjects with RA).  Sparse sampling following 
repeated administration of OKZ was performed in non-Asian and Asian subjects with RA in 
Studies RA0056 and RA0083, respectively.  Exposure to OKZ following single dose 
administration appeared to be similar in non-Asian and Asian volunteers.  Following SC 
administration, maximum plasma concentrations were generally reached between 
approximately 4 days (in Study RA0074, 6 mg/kg SC) and 14 days (in Study RA0001, 
1 mg/kg SC).  Over the 0.3 to 6 mg/kg SC dose range evaluated in Studies RA0001 and 
RA0074, the median terminal half-life ranged from 30.1 to 39.6 days.  The PK profile of 
OKZ in Study RA0010 (non-Asian RA volunteers) was similar to that seen in healthy 
volunteers in Study RA0001 for the same doses.  The maximum concentration of OKZ 
following SC administration was achieved within a median of 7 to 13 days following 
3 mg/kg and 1 mg/kg dosing, respectively.  The estimate of terminal half-life across doses 
and routes of administration was 31 days (median range:  12 to 63 days). 
Pharmacokinetic bioavailability of OKZ via SC administration was estimated to be 63% 
across the 3 studies evaluated (Studies RA0001, RA0010, and RA0056).  Population PK 
analysis utilizing sparse plasma concentration versus time data collected in RA0056 along 
with intense PK data collected in Studies RA0001 and RA0010 indicated similar PK 
characteristics of OKZ in subjects with moderately to severely active RA and in healthy 
subjects.  Body weight was found to be the only “statistically significant” covariate on 
volume of distribution. 
2.2.4 
Rationale for Dose Selection 
The dose regimens of OKZ to be evaluated in this Phase III study are 64 mg q2w and 
64 mg q4w.  The rationale for selecting these dose regimens for further investigation is 
provided below. 
In the Phase II studies, RA0056 and RA0083, the primary efficacy variable was met in all 
OKZ treatment groups, demonstrating improvement compared with placebo groups and a 
statistically significant overall dose-response trend as evidenced by the change from baseline 
in DAS28 (CRP).  Study RA0001 demonstrated that OKZ was pharmacologically active at 
all doses tested.  This finding was supported by the PD and clinical findings of the 

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subsequent Phase I/IIa study, RA0010, conducted in subjects with mild to moderate RA.  The 
data from these studies highlight the potency of OKZ as well as the existence of 
dose-response dependence, shown by the results of the concentration effect relationship 
evaluation for efficacy outcomes.  The relatively flat concentration-effect relationship for 
safety outcomes and the dose-dependent occurrence of injection site reactions for the 
OKZ 240 mg dose regimen, in contrast to the modest efficacy gains versus the 120 mg dose 
regimens, led to the exclusion of the 240 mg dose regimen from further evaluation in the 
Phase III program.  This decision was further supported by the inconvenience of 
administering 2 injections of 120 mg OKZ in order to achieve the 240 mg dose level even 
with the new 160 mg/mL formulation. 
In a thorough dose-response analysis using the combined database from the 2 Phase II 
studies, it was confirmed that a plateau of efficacy was reached at a cumulative monthly dose 
of 120 mg.  The 60 mg monthly dose seemed to have slightly lower efficacy in the modeling 
analysis; however, in both Phase II studies that were conducted in relatively difficult to treat 
population of subjects resistant to 1 or more TNFi biologics, the 60 mg monthly treatment 
groups showed statistically significant efficacy.  While there was not a detectable increase in 
safety events observed with doses above 120 mg monthly, there also did not seem to be a 
substantial gain in efficacy with higher doses.  Thus, the 120 mg monthly dose, administered 
as either 60 mg q2w or 120 mg q4w, seemed to be associated with optimal efficacy/safety 
ratio.  The lower 60 mg monthly dose was also efficacious with a potential for a safety 
advantage, especially over the long-term treatment. 
Due to an increase in the concentration of the formulation subsequent to Phase II, it should 
be noted that the lowest volume that can be used in Phase III (0.4 mL) results in a nominal 
dose of 64 mg rather than 60 mg. 
Consequently, using the primary efficacy outcomes from individual Phase II studies, and 
additional dose-response analysis performed on a combined database derived from these 
studies, 2 OKZ dose regimens were selected for further investigation:  64 mg SC q2w and 
64 mg SC q4w since totality of the data strongly suggested that both of these dose regimens 
could potentially be successful in a large Phase III program. 
2.3 
Adalimumab 
Adalimumab (Humira®) (Abbvie 2016) is a TNFi that is licensed for treating RA in several 
regions, including the US and European Union (EU).  Patients receiving TNFi, including 
adalimumab, are at increased risk for developing serious infections and malignancies.  In 
clinical studies of adalimumab, the most common AEs were injection site reactions, most of 
which were described as mild and generally did not necessitate drug discontinuation.  Other 
common AEs (incidence >10%) included infections (e.g., upper respiratory or sinusitis), 

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headache, and rash.  The most common adverse reactions leading to discontinuation of 
adalimumab were clinical flare reaction (0.7%), rash (0.3%), and pneumonia (0.3%). 
Adalimumab is administered by SC injection in the thigh or abdomen.  For adult patients 
with RA, the recommended dose is 40 mg q2w. 
2.4 
Rationale for the Study 
The double-blind, randomized, parallel-group, placebo- and active-controlled design used in 
this study is consistent with the precedent set for Phase III trials of other biologics and is in 
accordance with health authority guidelines. 
The goal of this Phase III study is to assess the safety, tolerability, and efficacy of OKZ in 
subjects with moderately to severely active RA who have responded inadequately to MTX.  
The primary endpoint of the trial is at Week 12.  Olokizumab is expected to reduce the 
disease activity and induce an improvement in physical function.  The study is expected to 
provide safety information in a large group of subjects over at least a 24-week period.  
Adalimumab 40 mg q2w SC has been included as the active comparator for assay sensitivity 
and non-inferiority evaluations (see Section 6.2.2). 
Due to the nature of RA and the outcome measures used (ACR response and DAS), a 
placebo group is necessary to obtain a reliable assessment of efficacy.  The inclusion of a 
placebo group and the duration of placebo treatment are in accordance with health authority 
guidelines.  Due to the availability of multiple treatment options for RA, all subjects 
identified as nonresponders at Week 14, including those receiving placebo, will receive 
rescue medication starting at or as close as possible to Week 14 (see Section 6.13.3).  The 
inclusion of a control group with non-active treatment (placebo) is also justified because 
subjects will continue to receive their prior background therapy (MTX) during the study.  Up 
to 30% of placebo subjects may still continue to demonstrate increasing therapeutic benefit 
over 6 months of MTX therapy at the same dose (Keystone et al, 2004). 
2.5 
Benefit/Risk Assessment 
Olokizumab has undergone extensive nonclinical testing, and 7 clinical studies have been 
completed.  In the difficult-to-treat population of RA patients who previously failed TNFi 
therapy, OKZ has demonstrated efficacy in 2 Phase II studies (Study RA0056 [extended with 
Study RA0057] in 221 subjects and Study RA0083 [extended with Study RA0089] in 
119 Asian subjects) using the doses of OKZ that are proposed for this Phase III study; at 
higher doses, the safety profile was similar.  Bioavailability of OKZ via SC administration 
was estimated to be 63% across 3 studies evaluated (RA0056, RA0001, and RA0010). 

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The clinical program to date suggests that OKZ is effective in reducing disease symptoms in 
subjects with RA, and that OKZ is generally well tolerated (for further efficacy and safety 
information, refer to the most recent version of the Investigator’s Brochure).  The safety 
profile of OKZ is consistent with the known effects of IL-6 blockers.  Overall, the 
benefit/risk profile for subjects in the proposed study is favorable.  The study will provide 
valuable information on the efficacy, safety, tolerability, and PK of OKZ in subjects with 
RA, which may subsequently help to address the unmet medical needs for this patient 
population. 
The design of this study contains adequate measures to mitigate risk factors and adequate 
safety monitoring to protect the subjects.  Nonresponders at Week 14, defined as all subjects 
who do not improve by at least 20% in both swollen joint counts (SJC) and tender joint 
counts (TJC) (66-68 joint assessment), will receive rescue medication (sulfasalazine and/or 
hydroxychloroquine) in addition to assigned treatment starting at or as close as possible to 
Week 14.  In the context of the progressive, severe, and debilitating nature of RA, the 
balance between risks that have been identified from cumulative safety data for OKZ and 
anticipated efficacy/benefits remains favorable. 

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3. STUDY OBJECTIVES 
3.1 
Primary Objective 
The primary objective of this study is to evaluate the efficacy of OKZ 64 mg administered 
SC q2w or q4w relative to placebo in subjects with moderately to severely active RA 
inadequately controlled by MTX therapy. 
3.2 
Secondary Objectives 
The secondary objectives of this study are as follows: 
• 
To evaluate the efficacy of OKZ relative to adalimumab in subjects with moderately to 
severely active RA inadequately controlled by MTX therapy 
• 
To evaluate the efficacy of OKZ over time 
• 
To compare the physical function and quality of life of subjects receiving OKZ relative to 
placebo 
• 
To assess exposure to OKZ 
• 
To assess the safety and tolerability of OKZ 

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4. SUMMARY OF STUDY ENDPOINTS 
4.1 
Primary Efficacy Endpoint 
The primary efficacy endpoint is the ACR20 response at Week 12, where a responder is 
defined as any subject satisfying ACR20 criteria and remaining on randomized treatment and 
in the study at Week 12.  This endpoint will serve to demonstrate that the efficacy of OKZ is 
superior to placebo. 
4.2 
Secondary Efficacy Endpoints 
The following secondary efficacy endpoints will be evaluated: 
• 
For EU submission:  ACR20 response at Week 12, where a responder is defined as any 
subject satisfying ACR20 criteria and remaining on randomized treatment and in the 
study at Week 12 
− This endpoint will serve to demonstrate that the efficacy of OKZ is non-inferior to 
adalimumab, provided that superiority of adalimumab to placebo (assay sensitivity) is 
demonstrated concurrently based on the same endpoint 
• 
Percentage of subjects achieving low disease activity, defined as DAS28 (CRP) <3.2, and 
remaining on randomized treatment and in the study at Week 12 
• 
For EU submission:  Percentage of subjects achieving low disease activity, defined as 
DAS28 (CRP) <3.2, and remaining on randomized treatment and in the study at Week 12 
− This endpoint will serve to demonstrate that the efficacy of OKZ is non-inferior to 
adalimumab, provided that superiority of adalimumab to placebo (assay sensitivity) is 
demonstrated concurrently based on the same endpoint 
• 
Improvement of physical ability from baseline to Week 12, as measured by the Health 
Assessment Questionnaire-Disability Index (HAQ-DI) 
• 
Percentage of subjects achieving an ACR50 response and remaining on randomized 
treatment and in the study at Week 24 
• 
Percentage of subjects with Clinical Disease Activity Index (CDAI) ≤2.8 (remission) and 
remaining on randomized treatment and in the study at Week 24 

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4.3 
Other Efficacy Endpoints 
The following additional efficacy endpoints will be used to compare OKZ with placebo and 
adalimumab: 
• 
Proportion of subjects achieving an ACR20, ACR50, and ACR70 response and 
remaining on randomized treatment and in the study, assessed at all other applicable time 
points 
• 
Proportion of subjects with Simplified Disease Activity Index (SDAI) ≤3.3 (remission) 
and remaining on randomized treatment and in the study, assessed at all applicable time 
points 
• 
Proportion of subjects with CDAI ≤2.8 (remission) and remaining on randomized 
treatment and in the study, assessed at all other applicable time points. 
• 
Proportion of subjects with DAS28 low disease activity (based on DAS28 [CRP] <3.2) 
and remaining on randomized treatment and in the study, assessed at all other applicable 
time points 
• 
Proportion of subjects with improvement from baseline in HAQ-DI score ≥0.22 and 
remaining on randomized treatment and in the study, assessed at all applicable time 
points 
• 
Change from baseline over time in DAS28 (CRP), assessed at all applicable time points 
• 
Change from baseline to Weeks 12 and 24 in DAS28 erythrocyte sedimentation rate 
(ESR) 
• 
Change from baseline to all other applicable time points in the measure of physical ability 
(HAQ-DI) 
• 
Change from baseline to Weeks 12 and 24 in the scores for the following patient-reported 
outcome (PRO) measures 
− Short Form-36 (SF-36) Physical Component Summary (PCS) and Mental Component 
Summary (MCS) total scores 
− European Quality of Life-5 Dimensions (EQ-5D) 
− Work Productivity Survey-Rheumatoid Arthritis (WPS-RA) 
− Functional Assessment of Chronic Illness Therapy – Fatigue Scale (FACIT-Fatigue) 
• 
Change from baseline to all applicable time points in SDAI and CDAI 

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• 
Proportion of subjects with moderate to good responses for EULAR based on 
DAS28 (CRP) and remaining on randomized treatment and in the study, assessed at all 
applicable time points, where a moderate response is defined as either DAS28 (CRP) 
≤5.1 with an improvement from baseline in DAS28 (CRP) >0.6 and ≤1.2, or 
DAS28 (CRP) >3.2 with an improvement from baseline in DAS28 (CRP) >1.2, and a 
good response is defined as DAS28 (CRP) ≤3.2 with an improvement from baseline in  
DAS28 (CRP) >1.2 
• 
Change from baseline to all time points in the components of the ACR response criteria 
4.4 
Pharmacokinetic Endpoints 
Olokizumab in plasma will be assessed as follows: 
• 
Blood samples will be collected from all subjects periodically throughout the study, 
including at each time a blood sample is taken for the determination of antidrug 
antibodies (ADAs) (ADA/PK matched subjects), with the exception of the final 
Follow-Up Visit.  However, PK samples will not be analyzed unless the subject has a 
confirmed positive ADA response.  If formation of ADAs is observed in any postdose 
sample, all PK samples for that subject will be analyzed. 
• 
At least one-third (33%) of the subjects in the OKZ treatment groups will be randomly 
selected to have their PK samples analyzed for OKZ concentrations in plasma.  The 
randomization will be such that an equal number of subjects will be included from both 
OKZ treatment groups.  Data for these subjects will be included in future planned 
population PK modeling. 
4.5 
Pharmacokinetic/Pharmacodynamic Correlations 
The PK and immunogenicity of OKZ will be assessed by: 
• 
Characterizing the dose/exposure-response relationships related to efficacy endpoints 
(e.g., ACR20 response) and identifying potential factors that may impact the efficacy 
endpoints 
• 
Characterizing the dose/exposure-response relationships related to safety endpoints 
(e.g., lipids and neutrophils) and identifying potential factors that may impact the safety 
endpoints 
• 
Evaluating the impact of ADAs on subject safety, efficacy, and PK of OKZ 

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4.6 
Safety Endpoints 
The safety of OKZ will be assessed by: 
• 
The nature, incidence, severity, and outcome of AEs, including SAEs and adverse events 
of special interest (AESIs) 
• 
Proportions of subjects with AEs, SAEs, and clinically significant laboratory 
abnormalities 
• 
Assessment of changes over time in clinical laboratory parameters, vital signs, and 
physical examination findings 
• 
Incidence and titer of ADAs to OKZ, incidence of neutralizing antibodies, and the time 
course of antibodies 

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5. INVESTIGATIONAL PLAN 
5.1 
Summary of Study Design 
This is a randomized, double-blind, parallel-group, placebo- and active-controlled, 
multicenter Phase III study that will evaluate the efficacy and safety of OKZ in subjects with 
moderately to severely active RA inadequately controlled by MTX therapy. 
Inadequate response to MTX therapy is defined as a subject with at least 12 weeks of 
exposure prior to Screening and with either: 
• 
Absence of any documented clinically significant response; or 
• 
Documented initial clinical response with subsequent loss of that response or partial 
response 
This study will be conducted at approximately 235 global sites across Russia, Georgia, the 
US, the EU, Asia, and Latin America.  A total of 1575 subjects will be randomized. 
Subjects will be assessed for eligibility to enter the study during a 4-week Screening Period.  
Eligible subjects will be randomized at Visit 2 in a 2:2:2:1 ratio (450, 450, 450, and 
225 subjects per group, respectively) to 1 of 2 dosing frequencies (q2w or q4w) of 64 mg 
OKZ, to adalimumab 40 mg q2w, or to placebo as described in Section 5.2.  The study will 
consist of a 24-week double-blind Treatment Period with the last dose of study treatment 
(OKZ, adalimumab, or placebo) administered at Week 22 in all groups.  After completion of 
the double-blind Treatment Period, subjects will be offered the opportunity to enter the 
long-term OLE study.  Subjects who do not consent to participate in the OLE study will 
come to the End of Treatment (EoT) Visit (Visit 15, Week 24) 2 weeks after the last dose of 
the study treatment for scheduled assessments.  After the EoT Visit, these subjects will be 
scheduled for Safety Follow-Up Visit SFU-1 (Week 26), Visit SFU-2 (Week 30), and 
Visit SFU-3 (Week 44) to perform adequate safety assessments.  For subjects not entering 
the OLE, the total amount of time to complete the study will be approximately 48 weeks 
(inclusive of the Screening, Treatment, and Safety Follow-Up Periods). 
Subjects who discontinue randomized study treatment early will adhere to the double-blind 
Treatment Period visit schedule outlined in Table 1, as if they were still receiving study 
treatment.  In addition, all subjects who discontinue study treatment early will be required to 
attend the EoT Visit +2 weeks after the last dose of the study treatment, as well as Safety 
Follow-Up assessments +4, +8, and +22 weeks after the last dose of study treatment. 
A schematic of the study design is presented in Figure 1.  The Schedule of Events to be 
conducted during the initial 24-week double-blind Treatment Period (Screening through 

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Week 24) and the Safety Follow-Up Period (Week 24 through Week 44) is presented in 
Table 1. 

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Figure 1 
CL04041023 (CREDO 2) Study Schematic 
 
 
 
 
 
 
 
 
 
 
 
Week -4 
Week 0 
Week 14b,c 
 
 
Week 24 
Week 26 
Week 30 
Week 44 
 
Baseline 
 
 
 
EoT 
Safety 
Safety 
Safety 
 
 
 
 
 
 
Follow-Up 
Follow-Up 
Follow-Up 
Abbreviations:  DMARD = disease-modifying anti-rheumatic drug; MTX = methotrexate; N = total number of subjects; n = number of subjects per treatment 
group; OKZ = olokizumab; OLE = open-label extension; q2w = once every 2 weeks; q4w = once every 4 weeks; R = randomization; RA = rheumatoid arthritis; 
SC = subcutaneous(ly). 
a. 
After completion of the 24-week double-blind Treatment Period, subjects will either roll over into the long-term OLE study or return for Safety Follow-Up 
Visits at Weeks 26, 30, and 44 in the current study. 
b. 
At Week 14, subjects are classified as nonresponders if they do not improve by at least 20% in both swollen and tender joint counts (66-68 joint 
assessment). 
c. 
Starting at or as close as possible to Week 14, subjects classified as nonresponders are prescribed 1 or both of the 2 allowed DMARDs in addition to the 
study treatment, background MTX, and concomitant folic acid or equivalent. 
OKZ 64 mg SC q4w + MTX 
(n=450) 
OKZ 64 mg SC q2w + MTX 
(n=450) 
Placebo SC q2w + MTX 
(n=225) 
Subjects with 
active RA 
inadequately 
responding to 
MTX therapy 
(N=1575) 
Enter OLEa 
or Safety    
Follow-Up 
Screening 
Days -28 to -10 
Double-Blind Treatment Period 
Weeks 0 to 24 
Safety Follow-Up Perioda 
Weeks 24 to 44 
Adalimumab 40 mg SC q2w 
+ MTX 
(n=450) 
R 

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Table 1 
CL04041023 (CREDO 2) Schedule of Events (Double-Blind Treatment Period and Safety Follow-Up Period) 
Assessmentsa 
 
Randomized Double-Blind Treatment Period 
Safety Follow-Up Period 
Visit 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
13 
14 15/EoT SFU-1 
SFU-2 
SFU-3 
Week 
Screening 
0/Baseline 
1 
2 
4 
6 
8 
10 
12 
14 
16 
18 
20 
22 24 (+2b) 26 (+4b) 30 (+8b) 44 (+22b) 
Visit Window (days) 
-28 to -10 
±0 
±2 
±3 
±3 
±3 
±3 
±3 
±3 
±3 
±3 
±3 
±3 
±3 
±3 
±7 
±7 
±7 
Obtain informed consent 
c 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Subject number assigned 
via IWRS 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Determine eligibility 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Demography 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Medical history and  
current medical conditions  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Height 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Weight 
 
 
 
 
  
  
  
  
 
 
 
 
 
 
Physical examinationd 
d 
d 
  
  
  
d     
  
d 
 
 
d 
Vital signse 
 
f 
 
           
 
 
 
 
Contraceptive history/status 
 
 
            
 
 
 
 
Concomitant and prior 
medications/non-drug 
therapy 
 
 
            
 
 
 
 
Randomization 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Study treatment allocation 
through IWRS 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Administer study 
treatmentg 
 
h 
 
           
 
 
 
 
Prescribe rescue medication 
for nonrespondersi 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 

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Assessmentsa 
 
Randomized Double-Blind Treatment Period 
Safety Follow-Up Period 
Visit 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
13 
14 15/EoT SFU-1 
SFU-2 
SFU-3 
Week 
Screening 
0/Baseline 
1 
2 
4 
6 
8 
10 
12 
14 
16 
18 
20 
22 24 (+2b) 26 (+4b) 30 (+8b) 44 (+22b) 
Visit Window (days) 
-28 to -10 
±0 
±2 
±3 
±3 
±3 
±3 
±3 
±3 
±3 
±3 
±3 
±3 
±3 
±3 
±7 
±7 
±7 
EFFICACY ASSESSMENTS 
Patient Global Assessment 
of Disease Activity (VAS) 
 
 
    
  
 
 
 
 
 
 
 
 
 
 
Patient Assessment of Pain 
(VAS) 
 
 
    
  
 
 
 
 
 
 
 
 
 
 
HAQ-DI 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
SF-36, EQ-5D, 
FACIT-Fatigue, and 
WPS-RA 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Joint counts (Independent 
Joint Assessment)j 
 
 
 
   
  
    
 
 
 
 
 
 
Physician Global 
Assessment (VAS) 
 
 
 
   
  
 
 
 
 
 
 
 
 
 
 
CRP 
k 
 
 
   
  
 
 
 
 
 
 
 
 
 
 
ESR 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
LABORATORY/SAFETY ASSESSMENTS 
AEs/SAEsl 
 
 
            
 
 
 
 
IGRA 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
HIV serology 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
HBsAg, anti-HBs, 
anti-HBc, HCV Ab 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Pregnancy testm 
 
 
 
 
  
  
  
  
  
 
 
 
 
INR, aPTT, fibrinogenn 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
Lipid panel (fasting)o 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
CV risk panelp 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
HbA1c 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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Assessmentsa 
 
Randomized Double-Blind Treatment Period 
Safety Follow-Up Period 
Visit 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
13 
14 15/EoT SFU-1 
SFU-2 
SFU-3 
Week 
Screening 
0/Baseline 
1 
2 
4 
6 
8 
10 
12 
14 
16 
18 
20 
22 24 (+2b) 26 (+4b) 30 (+8b) 44 (+22b) 
Visit Window (days) 
-28 to -10 
±0 
±2 
±3 
±3 
±3 
±3 
±3 
±3 
±3 
±3 
±3 
±3 
±3 
±3 
±7 
±7 
±7 
Hematologyq 
r 
 
 
 
  
  
  
  
  
 
 
 
 
Chemistry panels 
r 
 
 
   
  
  
  
  
 
 
 
 
RF and anti-CCP 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Urinalysist 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
PK blood samplesu 
 
 
 
   
  
  
 
 
  
 
 
 
 
ADAsv 
 
w 
 
 
  
  
 
 
 
 
  
 
 
 
 
ANA and anti dsDNA 
antibody 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Assess injection site 
reactionsx 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
TB risk questionnaires 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
Chest X-ray 
y 
 
 
 
 
 
 
 
 
 
 
 
 
 
z 
 
 
 
12-lead ECG 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Abbreviations:  ADA = antidrug antibody; AEs = adverse events; ALT = alanine aminotransferase; ANA = antinuclear antibody; anti-CCP = anti-citrullinated 
protein antibody; anti-HBs = hepatitis B surface antibody; anti-HBc = total hepatitis B core antibody; ApoB = apolipoprotein B; ApoA1 = apolipoprotein A1; 
aPTT = activated partial thromboplastin time; AST = aspartate aminotransferase; BNP = brain natriuretic peptide; BP = blood pressure; CDAI = Clinical Disease 
Activity Index; CRP = C-reactive protein; CV = cardiovascular; dsDNA = double-stranded DNA; ECG = electrocardiogram; EoT = End of Treatment; 
EQ-5D = European Quality of Life-5 Dimensions; ESR = erythrocyte sedimentation rate; FACIT-Fatigue = Functional Assessment of Chronic Illness 
Therapy-Fatigue Scale; GGT = gamma-glutamyl transferase; HAQ-DI = Health Assessment Questionnaire-Disability Index; HbA1c = glycosylated hemoglobin; 
HBsAg = hepatitis B surface antigen; HCV = hepatitis C virus; HCV Ab = hepatitis C virus antibody; HDL = high-density lipoprotein; HIV = human 
immunodeficiency virus; ICF = informed consent form; IEC = Independent Ethics Committee; IGRA = interferon-gamma release assay; INR = international 
normalized ratio; IRB = Institutional Review Board; IWRS = Interactive Web Response System; LDL = low-density lipoprotein; NT-proBNP = N-terminal 
pro-hormone of brain natriuretic peptide; PK = pharmacokinetic(s); PRO = patient-reported outcomes; RBC = red blood count; RF = rheumatoid factor; 
SAE = serious adverse event; SC = subcutaneous(ly); SDAI = Simplified Disease Activity Index; SF-36 = Short Form-36; TB = tuberculosis; WBC = white 
blood count; WPS-RA = Work Productivity Survey – Rheumatoid Arthritis; VAS = Visual Analog Scale. 
Note:  Data for the CDAI and SDAI endpoints will be derived from the relevant applicable efficacy assessments performed as per the above Schedule of Events. 
a. 
As much as possible, the assessments to be performed at each study visit will be conducted in the standard order outlined in Section 5.4.  At all 
post-Screening visits, the PRO questionnaires should be performed first, prior to any discussion between the subject and study site staff. 
b. 
The number of weeks (+2, +4, +8, or +22) after the last dose of the study treatment. 

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c. 
Written informed consent must be obtained prior to the performance of any protocol-specific procedures at Screening. 
d. 
Complete physical examination (see Section 7.4.7.1). 
e. 
Vital signs include temperature, heart rate, BP, and respiratory rate. 
f. 
Blood pressure and pulse also need to be reassessed 1 and 2 hours postdose at Visit 2. 
g. 
If desired, SC injections may be rotated among the thighs and abdomen. 
h. 
Subjects will remain at the study site for at least 2 hours after the injection at Visit 2 to be assessed for onset of any systemic hypersensitivity reactions 
(See Section 7.4.3.2 and Appendix 6 [Section 13.6]). 
i. 
Subjects will be classified in terms of their response to study treatment at Visit 10 (Week 14), and nonresponders in all groups will be prescribed 
sulfasalazine and/or hydroxychloroquine as rescue medication according to the local label of the prescribed drug(s) starting at Visit 10 (Week 14) (or 
as close as possible to this Visit), in addition to the assigned study treatment, background MTX, and concomitant folic acid or equivalent (see 
Section 6.13.3). 
j. 
Joint assessor will be independent to the rest of the study team.  An independent joint assessor, blinded to other study assessments as well as the dosing 
regimen, will be identified at each study site to perform the swollen and tender joint counts.  To ensure consistent joint evaluation throughout the 
study, individual subjects should be evaluated by the same joint assessor for all study visits whenever possible. 
k. 
The CRP test can be repeated once during the Screening Period to assess eligibility, provided results arrive prior to the randomization date.  No 
extensions of the Screening Period will be granted for missing laboratory data unless this is due to central laboratory error (after Sponsor approval). 
l. 
Adverse events and SAEs are reported from the signature of the ICF. 
m. 
Required for females of childbearing potential only.  The pregnancy test will consist of a serum test at Screening, and urine tests at the scheduled time 
points thereafter; may be repeated more frequently if required by local practices, IRB/IECs or local regulations, if a menstrual cycle is missed, or if 
potential pregnancy is otherwise suspected. 
n. 
Samples for INR, aPTT, and fibrinogen should be collected prior to all other blood samples. 
o. 
Lipid panel includes total cholesterol, HDL, LDL, triglycerides, lipoprotein (a), apolipoproteins (ApoB, ApoA1, and ApoB:ApoA1 ratio), and 
adiponectin. 
p. 
Cardiovascular risk panel includes NT-proBNP, BNP, and homocysteine. 
q. 
Hematology includes RBC, WBC with differential, hemoglobin, hematocrit, and platelet count. 
r. 
If the Investigator considers Screening laboratory tests with exclusionary results to be due to laboratory error or a transient condition, these tests may 
be repeated once during the Screening Period for confirmation. 
s. 
At Visit 1 (Screening), Visit 2 (Week 0), Visit 3 (Week 1), Visit 5 (Week 4), Visit 7 (Week 8), Visit 9 (Week 12), Visit 11 (Week 16), Visit 13 
(Week 20), Visit 15 (Week 24), Visit SFU-2 (Week 30), and Visit SFU-3 (Week 44), subjects must attend study sites after fasting for at least 9 hours 
(water and concomitant medications are permitted).  The chemistry panel will include urea nitrogen, creatinine, fasting glucose, calcium, sodium, 
potassium, bicarbonate, chloride, total protein, total bilirubin, direct bilirubin, indirect bilirubin, ALT, AST, alkaline phosphatase, GGT, and albumin. 
t. 
Urinalysis includes specific gravity, pH, protein, glucose, ketones, blood, and leukocyte esterase. 
u. 
A detailed schedule of blood sample collections for PK samples is provided in Table 4. 
v. 
Blood samples will be collected for analysis of ADAs to OKZ and any neutralizing antibodies to OKZ in plasma. 
w. 
The ADA sample taken at Visit 2 will serve as a baseline. 
x. 
At each specified visit, subjects should be assessed for any injection site reactions that have occurred since the previous injection (see Section 7.4.3.5).  
The assessment of injection site reactions should take place prior to the next scheduled injection of study treatment. 
y. 
Chest X-ray (both posteroanterior and lateral) need not be conducted if performed within 8 weeks prior to the date of Screening and films or images 
are available for review.  Films or images available at Screening and collected during the study should be kept as source documents. 
z. 
Not applicable if chest X-ray has been performed within 8 weeks prior to the EoT Visit and films or images are available for review. 

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5.2 
Discussion of Study Design 
Once subjects have successfully completed the 4-week Screening Period, a total of 
1575 subjects will be randomly assigned to 1 of 4 treatment groups in a 2:2:2:1 ratio (450, 
450, 450, and 225 subjects per group, respectively), as follows: 
1. OKZ 64 mg q4w:  SC injection of OKZ 64 mg q4w (alternating with SC injection of 
placebo OKZ q4w to maintain blinding) + MTX 
2. OKZ 64 mg q2w:  SC injection of OKZ 64 mg q2w + MTX 
3. Adalimumab 40 mg q2w:  SC injection of adalimumab 40 mg q2w + MTX 
4. Placebo:  SC injection of placebo q2w + MTX 
This is a double-blind study; as OKZ, adalimumab, and placebo are distinguishable (see 
Section 6.2), study treatments will be prepared by an independent unblinded pharmacist or 
designee (e.g., nurse) out of sight of the subject and any blinded study team members.  
Placebo and OKZ will be prepared in blinded syringes that are identical in appearance in 
order to maintain the blind for subjects in treatment group No. 1.  The SC injections of OKZ, 
adalimumab, and placebo will be administered every other week by an independent, 
unblinded, and trained study team member who will not be involved in the management of 
study subjects.  Subjects will be dosed individually and away from other subjects to ensure 
that visual differences between OKZ, adalimumab, and placebo cannot be observed.  In 
addition, the unblinded study site staff will be trained in methods that must be followed and 
documented to prevent subjects from observing which SC injection they receive.  Guidance 
on specific blinding procedures will be provided in the Study Reference Manual.  As noted 
above for treatment group No. 1, in order to maintain the blind, subjects randomized to 
receive OKZ q4w will receive placebo injections at the alternate q4w interval (e.g., Week 2, 
Week 6, etc) at prespecified visits as described in Table 1. 
Throughout the double-blind Treatment Period, all subjects will be required to remain on a 
stable dose of background MTX at 15 to 25 mg/week (or ≥10 mg/week if there is 
documented intolerance to higher doses) with a stable route of administration, and 
concomitant treatment with folic acid ≥5 mg per week or equivalent is required for all 
subjects.  From Week 0 through Week 24, subjects will return to the study site at least every 
other week for response and safety assessments as per Table 1.  Blood samples to assess 
OKZ concentrations in plasma will be collected periodically during the Treatment Period as 
per Table 4. 

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Subjects will be classified in terms of their response to study treatment at Week 14, with 
nonresponders defined as subjects from any treatment group who do not improve by at least 
20% in both SJC and TJC (66-68 joint assessment).  Starting at or as close as possible to 
Week 14, nonresponders in all groups will be administered sulfasalazine and/or 
hydroxychloroquine as rescue medication in addition to the assigned treatment (see 
Section 6.13.3). 
The last dose of study treatment (OKZ, adalimumab, or placebo) will be at Week 22 in all 
groups. 
After completion of the 24-week, double-blind Treatment Period, subjects will either roll 
over into the long-term OLE study or enter the Safety Follow-Up Period.  During the Safety 
Follow-Up Period, subjects will return for visits +4, +8, and +22 weeks after the last dose of 
study treatment at Week 22 as per Table 1 (Visit SFU-1 [Week 26], Visit SFU-2 [Week 30], 
and Visit SFU-3 [Week 44], respectively). 
Subjects who discontinue randomized study treatment early will adhere to the double-blind 
Treatment Period visit schedule outlined in Table 1, as if they were still receiving study 
treatment.  In addition, all subjects who discontinue study treatment early will be required to 
attend the EoT Visit +2 weeks after the last dose of study treatment, as well as extended 
Safety Follow-Up assessments +4 weeks (Visit SFU-1), +8 weeks (Visit SFU-2), and 
+22 weeks (Visit SFU-3) after the last dose of study treatment. 
Adverse events will be assessed throughout the study and evaluated using the CTCAE 
version 4.0. 
There will be ongoing monitoring of safety events, including laboratory findings, by 
R-Pharm and R-Pharm’s designee.  In addition, safety will be assessed throughout the study 
by an independent Data Safety Monitoring Board (DSMB) (see Section 7.4.4 for further 
details). 
5.2.1 
Cardiovascular Risk Assessment 
The RA population is known to have an increased risk of cardiovascular (CV) events.  In 
order to fully assess the CV risks associated with OKZ, the following approach will be 
implemented: 
1. Potential major adverse cardiac events (MACE) will be adjudicated by an independent 
Cardiovascular Adjudication Committee (CVAC) according to a predefined charter.  The 
charter will define the criteria, data, and source documentation required to adjudicate all 
MACE. 

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2. Baseline CV risks including individual risk factors (e.g., tobacco use, presence of 
hypertension, diabetes mellitus, and lipid profile) will be assessed. 
3. Known CV risk factors will be monitored and assessed to detect any trends over 
long-term exposure. 
Cardiovascular risk assessment data will be provided to the CVAC for use in review and 
adjudication of MACE (see Section 7.4.4.2). 
5.2.2 
Safety Follow-up Assessments 
Given the long half-life of OKZ (approximately 31 days), subjects will be followed up for 
approximately 5 OKZ half-lives (i.e., 22 weeks) after the final dose of study treatment. 
For subjects remaining on randomized therapy until the last scheduled dose of study 
treatment at Visit 14 (Week 22) and not entering the OLE study, a full safety assessment will 
be performed at the EoT Visit (Visit 15 [Week 24]) and extended Safety Follow-Up 
procedures will be performed at visits scheduled +4, +12, and +22 weeks after the last dose 
of study treatment (i.e., Visits SFU-1 [Week 26], SFU-2 [Week 30], and SFU-3 [(Week 44], 
respectively). 
Subjects who discontinue randomized study treatment early (i.e., prior to Week 24) will 
adhere to the established double-blind Treatment Period visit schedule outlined in Table 1, as 
if they were still receiving study treatment.  In addition, all subjects who discontinue study 
treatment early will have extended Safety Follow-Up assessments performed at the following 
time points: 
• 
Full safety assessment 2 weeks after the last dose of study treatment (EoT Visit) 
(see Section 5.4.2) 
• 
Safety Follow-Up Visit +4 weeks after the last dose of study treatment (Visit SFU-1) 
(see Section 5.4.3.1)  
• 
Safety Follow-Up Visit +12 weeks after the last dose of study treatment (Visit SFU-2) 
(see Section 5.4.3.2) 
• 
Safety Follow-Up Visit +22 weeks after the last dose of study treatment (Visit SFU-3) 
(see Section 5.4.3.3) 
Depending on the timing of study treatment discontinuation, it is possible that the 
double-blind Treatment Period visits (Visits 2 through 15) may occur at the same time as the 
Safety Follow-Up Visits.  In such cases, the study site staff should complete all study 

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procedures required by both visits; if there are overlaps in the required laboratory tests, 
however, only one set of tests will be performed. 
All subjects will be reminded of study contact information to report potential SAEs and are 
to inform the Investigator if they experience such events during the Safety Follow-Up Period. 
5.3 
Selection of Study Population 
The study population will consist of a representative group of subjects of at least 18 years of 
age, fulfilling ACR 2010 revised classification criteria for RA for at least 12 weeks prior to 
Screening.  Eligible subjects are required to have active RA defined as ≥6 tender joints out of 
68 and ≥6 swollen joints out of 66 at Screening and baseline, in combination with CRP above 
the upper limit of normal (ULN) at Screening.  Subjects must have been on a stable dose of 
background MTX treatment at 15 to 25 mg/week (or ≥10 mg/week if there is documented 
intolerance to higher doses) for at least 12 weeks prior to Screening with a stable dose and 
route of administration for at least 6 weeks prior to Screening and have experienced an 
inadequate response (see Section 5.1 for the definition of inadequate response to MTX 
treatment).  Subjects will be maintained on a stable dose of MTX therapy throughout the 
study, and concomitant treatment with folic acid ≥5 mg per week or equivalent will be 
required for all subjects. 
This is an international study and it is expected that subjects will be enrolled at 
approximately 235 sites across Russia, Georgia, the US, the EU, Asia, and Latin America.  A 
total of 1575 subjects will be randomized.  Enrollment will stop as soon as the target number 
of randomized subjects is reached. 
5.3.1 
Inclusion Criteria 
Subjects may be enrolled in the study only if they meet all of the following criteria: 
1. Male or female subjects ≥18 years of age 
2. Subjects willing and able to sign informed consent 
3. Subjects must have a diagnosis of adult-onset RA classified by 
ACR/EULAR 2010 revised classification criteria for RA (Aletaha et al, 2010) for at least 
12 weeks prior to Screening. 
• 
If the subject was diagnosed according to ACR 1987 criteria previously, the 
Investigator may classify the subject per ACR 2010 retrospectively, using available 
source data. 

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4. Inadequate response to treatment with oral, SC, or intramuscular (IM) MTX (see 
Section 5.1 for definition of inadequate response to MTX treatment) for at least 12 weeks 
prior to Screening at a dose of 15 to 25 mg/week (or ≥10 mg/week if intolerant to higher 
doses) 
• 
The dose and means of administering MTX must have been stable for at least 6 weeks 
prior to Screening. 
5. Subjects must be willing to take folic acid or equivalent throughout the study. 
6. Subjects must have moderately to severely active RA disease as defined by all of the 
following: 
a. ≥6 tender joints (68-joint count) at Screening and baseline; and 
b. ≥6 swollen joints (66-joint count) at Screening and baseline; and 
c. CRP above ULN at Screening based on the central laboratory results 
5.3.2 
Exclusion Criteria 
Subjects who meet any of the following criteria will not be eligible for the study: 
1. Diagnosis of any other inflammatory arthritis or systemic rheumatic disease (e.g., gout, 
psoriatic or reactive arthritis, Crohn’s disease, Lyme disease, juvenile idiopathic arthritis, 
or systemic lupus erythematosus) 
• 
However, subjects may have secondary Sjogren’s syndrome or hypothyroidism. 
2. Subjects who are Steinbrocker class IV functional capacity (incapacitated, largely or 
wholly bed-ridden or confined to a wheelchair, with little or no self-care) (see 
Appendix 1 [Section 13.1]) 
3. Prior exposure to any licensed or investigational compound directly or indirectly 
targeting IL-6 or IL-6R (including tofacitinib or other Janus kinases and spleen tyrosine 
kinase [SYK] inhibitors) 
4. Prior treatment with cell-depleting therapies, including anti-CD20 or investigational 
agents (e.g., CAMPATH, anti-CD4, anti-CD5, anti-CD3, and anti-CD19) 
5. Prior use of bDMARDs 
6. Use of parenteral and/or intra-articular glucocorticoids within 4 weeks prior to baseline 
7. Use of oral glucocorticoids greater than 10 mg/day prednisone (or equivalent) or change 
in dosage within 2 weeks prior to baseline 

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8. Prior documented history of no response to hydroxychloroquine and sulfasalazine 
9. Prior use of cDMARDs (other than MTX) within the following windows prior to baseline  
(cDMARDs should not be discontinued to facilitate a subject’s participation in the study, 
but should instead have been previously discontinued as part of a subject’s medical 
management of RA):  
a. 4 weeks for sulfasalazine, azathioprine, cyclosporine, hydroxychloroquine, 
chloroquine, gold, penicillamine, minocycline, or doxycycline 
b. 12 weeks for leflunomide unless the subject has completed the following elimination 
procedure at least 4 weeks prior to baseline:  Cholestyramine at a dosage of 8 grams 
3 times daily for at least 24 hours, or activated charcoal at a dosage of 50 grams 
4 times daily for at least 24 hours 
c. 24 weeks for cyclophosphamide 
10. Vaccination with live vaccines in the 6 weeks prior to baseline or planned vaccination 
with live vaccines during the study 
11. Participation in any other investigational drug study within 30 days or 5 times the 
terminal half-life of the investigational drug, whichever is longer, prior to baseline 
12. Other treatments for RA (e.g.,  Prosorba Device/Column) within 6 months prior to 
baseline 
13. Use of intra-articular hyaluronic acid injections within 4 weeks prior to baseline 
14. Use of non-steroidal anti-inflammatory drugs (NSAIDs) on unstable dose or switching of 
NSAIDs within 2 weeks prior to baseline 
15. Previous participation in this study (randomized) or another study of OKZ 
16. Abnormal laboratory values, as defined below. 
a. Creatinine level ≥1.5 mg/dL (132 µmol/L) for females or ≥2.0 mg/dL (177 µmol/L) 
for males 
b. ALT or AST level ≥1.5×  ULN 
c. Platelets <100×109/L (<100,000/mm3) 
d. White blood cell count <3.5×109/L 
e. Neutrophil count <2000×106/L (<2000/mm3) 

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f. Hemoglobin level ≤80 g/L 
g. Glycosylated hemoglobin (HbA1c) level ≥8% 
17. Subjects with concurrent acute or chronic viral hepatitis B or C infection as detected by 
blood tests at Screening(e.g., positive for hepatitis B surface antigen [HBsAg], total 
hepatitis B core antibody [anti-HBc], or hepatitis C virus antibody [HCV Ab]) 
a. Subjects who are are positive for hepatitis B surface antibodies (anti-HBs), but 
negative for HBsAg and anti-HBc, will be eligible. 
18. Subjects with HIV infection 
19. Subjects with: 
a. Suspected or confirmed current active TB disease or a history of active TB disease 
b. Close contact (i.e., sharing the same household or other enclosed environment, such 
as a social gathering place, workplace, or facility, for extended periods during the 
day) with an individual with active TB within 1.5 years prior to Screening. 
c. History of untreated latent TB infection (LTBI), regardless of IGRA result at 
Screening 
i. Subjects with a history of untreated LTBI may be re-screened and enrolled if 
they fulfill all 3 of the following criteria: 
1. Active TB is ruled out by a certified TB specialist or pulmonologist who is 
familiar with diagnosing and treating TB (as acceptable per local practice); 
2. The subject has completed at least 30 days of LTBI-appropriate prophylaxis 
prior to baseline with agents recommended as preventative therapy for LTBI 
according to country-specific/Centers for Disease Control and Prevention 
(CDC) guidelines (see Appendix 7 [Section 13.7]) (treatment with isoniazid 
for 6 months is not an appropriate prophylactic regime for this study and it 
should not be used); and 
3. The subject is willing to complete the entire course of recommended LTBI 
therapy (see Appendix 7 [Section 13.7]). 

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d. Positive interferon-gamma release assay (IGRA) result at Screening.  If 
indeterminate, the IGRA can be repeated once during the Screening Period.  If there 
is a second indeterminate result, the subject will be excluded. 
i. Subjects with a positive IGRA result at Screening may be re-screened and 
enrolled if they fulfill all 3 of the following criteria: 
1. Active TB is ruled out by a certified TB specialist or pulmonologist who is 
familiar with diagnosing and treating TB (as acceptable per local practice); 
2. The subject has completed at least 30 days of LTBI-appropriate prophylaxis 
prior to baseline with agents recommended as preventative therapy for LTBI 
according to country-specific/CDC guidelines (see Appendix 7 [Section 
13.7]) (treatment with isoniazid for 6 months is not an appropriate 
prophylactic regime for this study and it should not be used); and 
3. The subject is willing to complete the entire course of recommended LTBI 
therapy (see Appendix 7 [Section 13.7]). 
ii. If a subject with a positive IGRA result at Screening has documented evidence of 
completing treatment for LTBI with a treatment regime and treatment duration 
that are appropriate for this study, the subject may be enrolled without further 
prophylaxis if recommended by a certified TB specialist or pulmonologist who is 
familiar with diagnosing and treating TB (as acceptable per local practice) and 
no new exposure in close contact with an individual with active TB after 
completing the prophylactic treatment is suspected. 
20. Concurrent malignancy or a history of malignancy within the last 5 years (with the 
exception of successfully treated carcinoma of the cervix in situ and successfully treated 
basal cell carcinoma and squamous cell carcinoma not less than 1 year prior to Screening 
[and no more than 3 excised skin cancers within the last 5 years prior to Screening]) 
21. Subjects with any of the following CV conditions: 
a. Uncompensated congestive heart failure, or class III or IV heart failure defined by 
the New York Heart Association classification (The Criteria Committee of the New 
York Heart Association, 1994) as noted in Appendix 2 (see Section 13.2) 
b. Untreated or resistant arterial hypertension Grade II-III (systolic blood pressure [BP] 
>160 mm Hg and/or diastolic BP >100 mm Hg) 
c. History or presence of concurrent severe and/or uncontrolled CV disorder (including 
but not limited to acute coronary syndrome or stroke/transient ischemic attack in the 

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previous 3 months before Screening) that would, in the Investigator’s judgment, 
contraindicate subject participation in the clinical study, or clinically significant 
enough in the opinion of the Investigator to alter the disposition of the study 
treatment, or constitute a possible confounding factor for assessment of efficacy or 
safety of the study treatment 
22. Subjects with a history or presence of any concurrent severe and/or uncontrolled medical 
condition (including but not limited to respiratory, hepatic, renal, GI, endocrinological, 
dermatological, neurological, psychiatric, hematological [including bleeding disorder], or 
immunologic/immunodeficiency disorder[s]) that would, in the Investigator’s judgment, 
contraindicate subject participation in the clinical study, or clinically significant enough 
in the opinion of the Investigator to alter the disposition of the study treatment, or 
constitute a possible confounding factor for assessment of efficacy or safety of the study 
treatment 
23. Uncontrolled diabetes mellitus 
24. Subjects with any infection requiring oral antibiotic or antiviral therapy in the 2 weeks 
prior to Screening or at baseline, injectable anti-infective therapy in the last 4 weeks prior 
to baseline, or serious or recurrent infection with history of hospitalization in the 
6 months prior to baseline 
25. Subjects with evidence of disseminated herpes zoster infection, zoster encephalitis, 
meningitis, or other non-self-limited herpes zoster infections in the 6 months prior to 
baseline 
26. Subjects with planned surgery during the study or surgery ≤4 weeks prior to Screening 
and from which the subject has not fully recovered, as judged by the Investigator 
27. Subjects with diverticulitis or other symptomatic GI conditions that might predispose the 
subject to perforations, including subjects with history of such predisposing conditions 
(e.g., diverticulitis, GI perforation, or ulcerative colitis) 
28. Pre-existing central nervous system demyelinating disorders (e.g., multiple sclerosis and 
optic neuritis) 
29. History of chronic alcohol or drug abuse as judged by the Investigator 
30. Female subjects who are pregnant, currently lactating, have lactated within the last 
12 weeks, or who are planning to become pregnant during the study or within 6 months 
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31. Female subjects of childbearing potential (unless permanent cessation of menstrual 
periods, determined retrospectively after a woman has experienced 12 months of natural 
amenorrhea as defined by the amenorrhea with underlying status [e.g., correlative age] or 
6 months of natural amenorrhea with documented serum follicle-stimulating hormone 
levels >40 mIU/mL and estradiol <20 pg/mL) who are not willing to use a highly 
effective method of contraception during the study and for at least 6 months after the last 
administration of study treatment 
OR  
Male subjects with partners of childbearing potential not willing to use a highly effective 
method of contraception during the study and for at least 3 months after the last 
administration of study treatment 
Highly effective contraception is defined as: 
• 
Female sterilization surgery:  hysterectomy, surgical bilateral oophorectomy (with or 
without hysterectomy), or tubal ligation at least 6 weeks prior to the first dose of 
study treatment 
− In the case of oophorectomy alone, only when the reproductive status of the 
woman has been confirmed by documented follow-up hormone level assessment 
• 
Total abstinence if it is the preferred and constant lifestyle of the subject.  Thus, 
periodic abstinence such as ovulation, symptothermal, postovulation, calendar 
methods, and withdrawal are not acceptable methods of contraception. 
• 
Male sterilization surgery:  at least 6 months prior to Screening (with the appropriate 
postvasectomy documentation of the absence of sperm in the ejaculate).  For female 
subjects, the vasectomized male should be the only partner. 
• 
Placement of established intrauterine device (IUD):  IUD copper or IUD with 
progesterone 
• 
Barrier method (condom and intravaginal spermicide, cervical caps with spermicide, 
diaphragma with spermicide) in combination with the following:  established oral, 
injected, or implanted hormone methods of contraception or contraceptive patch 
32. Subjects with a known hypersensitivity to any component of the OKZ drug product, 
adalimumab, or placebo 
33. Subjects with a known hypersensitivity or contraindication to any component of the 
rescue medication (see Section 6.13.3) 

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34. History of severe allergic or anaphylactic reactions to human, humanized, or murine 
monoclonal antibodies 
35. Subject's unwillingness or inability to follow the procedures outlined in the protocol 
36. Other medical or psychiatric conditions or laboratory abnormalities that may increase 
potential risk associated with study participation and administration of investigational 
products, or that may affect study results interpretation and, as per the Investigator's 
judgment, make the subject ineligible 
5.3.3 
Disease Diagnostic Criteria 
Subjects must have a diagnosis of adult-onset RA classified by 2010 revised classification 
criteria for RA (Aletaha et al, 2010) for at least 12 weeks prior to Screening.  Details of the 
ACR/EULAR 2010 criteria are provided in Appendix 3 (see Section 13.3).  If the subject was 
previously diagnosed according to ACR 1987 criteria, the Investigator may classify the 
subject per ACR/EULAR 2010 retrospectively, using available source data. 
5.3.4 
Subject Restrictions 
The following restrictions may affect a subject’s ability to participate in this study: 
• 
Availability to attend visits according to the protocol within the allowed window period 
specified in Table 1 
• 
Concomitant medication restrictions as described in Section 6.13 
• 
Fasting (water and concomitant medications are permitted) for at least 9 hours prior to 
certain visits that include routine laboratory assessments as defined in Section 5.4. 
The Investigator (or designee) should review these restrictions with the subject during the 
Screening Period to determine any potential challenges in the subject’s ability to comply with 
the protocol.  Subjects not able to comply with the above mentioned restrictions should not 
be enrolled into the study. 
5.3.5 
Premature Subject Withdrawal 
All subjects are free to withdraw from participation in the study at any time, for any reason, 
specified or unspecified, and without prejudice to further treatment. 
If premature withdrawal occurs for any reason, the Investigator must make every effort to 
determine the primary reason for a subject’s premature withdrawal from the study and record 
this information on the source documents and appropriate electronic case report form 
(eCRF). 

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Subject will be completely withdrawn from study treatment and all assessments in the 
following cases: 
• Withdrawal of informed consent 
• Death of subject 
• Subject lost to follow-up 
− Note:  If the subject is lost to follow-up, the Investigator should attempt to contact 
the subject until the last scheduled Follow-Up Visit at Week 44.  The date of 
study termination for the subject is the date of last contact with subject. 
If the subject withdraws from the study and withdraws consent for disclosure of future 
information, no further evaluations should be performed and no additional data should be 
collected.  R-Pharm may retain and continue to use any data collected before such 
withdrawal of consent. 
Investigators are strongly encouraged to discuss the withdrawal of a subject with R-Pharm or 
R-Pharm’s designee in advance whenever possible. 
Subjects who are withdrawn from the study will not be replaced. 
5.4 
Study Procedures 
Every effort should be made to ensure that the protocol-required tests and procedures are 
completed as described.  However, it is anticipated that from time to time there may be 
circumstances outside of the control of the Investigator that may make it unfeasible to 
perform the test.  In these cases, the Investigator will take all steps necessary to ensure the 
safety and wellbeing of the subject. 
The timing for all study visits during the double-blind Treatment Period (Visit 3 [Week 1] 
through Visit 15 [Week 24]) is relative to baseline (Visit 2 [Week 0]).  The timing for all 
study visits during the Safety Follow-Up Period (Visits SFU-1, SFU-2, and SFU-3) is 
relative to the last dose of study treatment (+4, +8, and +22 weeks, respectively). 
As much as possible, subjects should be seen for all scheduled visits on the designated day.  
If a subject is unable to attend a scheduled visit on the designated day, the subject should be 
seen as closely as possible to the originally scheduled visit day. 

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The following visit windows are allowed (see Table 1), although their use should be avoided 
if possible: 
• 
Visit 1 (Screening):  Up to 28 days prior to randomization 
• 
Visit 2 (baseline):  ±0 days 
• 
Visit 3 (Week 1):  ±2 days 
• 
Visits 4 through 15/EoT (Weeks 2 through 24):  ±3 days 
• 
Visits SFU-1, SFU-2, and SFU-3:  ±7 days 
In all cases, there must be at least 1 week between each administration of the study treatment.  
If a subject misses a visit and comes for an Unscheduled Visit, procedures for the assessment 
of safety and efficacy should be performed according to the most recent visit that was 
omitted.  When a protocol-required procedure cannot be performed, the Investigator will 
document in the source documents the reason for this and any corrective and preventive 
actions that he/she has taken to ensure that normal processes are adhered to as soon as 
possible.  The study team should be informed of these incidents in a timely fashion. 
Subjects are required to fast for at least 9 hours (water and concomitant medications are 
permitted) prior to the following visits:  Visit 1 (Screening), Visit 2 (Randomization, 
Week 0), Visit 3 (Week 1), Visit 5 (Week 4), Visit 7 (Week 8), Visit 9 (Week 12), Visit 11 
(Week 16), Visit 13 (Week 20), Visit 15 (Week 24), Visit SFU-2 (Week 30), and Visit 
SFU-3 (Week 44). 
The assessments to be performed at each study visit will be conducted in the standard order 
listed below.  At all post-Screening visits, the PRO questionnaires should be performed first, 
prior to any discussion between the subject and study site staff. 
The standard order should be: 
• 
All PRO questionnaires (prior to any discussion between the subject and study site staff): 
− Patient Global Assessment of Disease Activity (Visual Analog Scale [VAS]) 
− Patient Assessment of Pain (VAS) 
− HAQ-DI 
− SF-36 
− EQ-5D 

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− FACIT-Fatigue 
− WPS-RA (this PRO is conducted by study site staff after the subject completes all 
other PROs) 
• 
Joint counts (Independent Joint Assessment) 
• 
Soliciting of AE information 
• 
Physician Global Assessment (VAS) 
• 
All other assessments 
In the following sections, assessments are listed for each visit according to this order. 
5.4.1 
Double-blind Period:  Visit 1 (Screening) through Visit 15 (Week 24) 
5.4.1.1 
Screening (Visit 1, Days -28 to -10) 
Written informed consent must be obtained prior to the performance of any protocol-specific 
procedures at Screening.  The Investigator at each study site will ensure that each subject has 
been provided with full and adequate oral and written information about the nature, purpose, 
and available details of possible risks and benefits of the study. 
Subjects must also be notified that they are free to discontinue from the study treatment or 
the whole study at any time.  The Investigator will discuss with the subject the importance of 
participation in the study despite the discontinuation of study treatment.  The subject should 
be given the opportunity to ask questions and allowed adequate time to consider the written 
information provided.  The Investigator must retain the original, signed informed consent 
form (ICF) for the study file.  A copy of the signed ICF must be given to the subject.  Once 
informed consent has been obtained, the subject’s eligibility to enter the study will be 
verified in accordance with the inclusion and exclusion criteria (refer to Sections 5.3.1 and 
5.3.2, respectively). 
Enrollment will occur using an Interactive Web Response System (IWRS) at Screening upon 
ICF signature.  The IWRS will assign a unique subject number at Screening. 
Screening may be conducted up to 28 days prior to randomization, and randomization can 
occur between 10 and 28 days after Screening. 
If the Investigator considers Screening laboratory tests with exclusionary results to be due to 
laboratory error or a transient condition, these tests may be repeated once during the 
Screening Period for confirmation.  In addition, the CRP test can be repeated once during the 
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randomization date.  No extensions of the Screening Period will be granted for missing 
laboratory data unless this is due to a central laboratory error. 
Screen failure and re-screening are discussed in Section 5.4.4. 
In addition to obtaining subject informed consent, the following assessments will be 
performed at Screening: 
• 
Assign subject number via IWRS. 
• 
Check eligibility criteria, including documenting of tender joints and diagnosis of RA. 
• 
Record subject demographics. 
• 
Record medical history. 
• 
Record details of contraceptive history/status. 
• 
Record concomitant medications and concomitant non-drug therapies. 
• 
Record height and weight. 
• 
Perform complete physical examination (see Section 7.4.7.1). 
• 
Record vital signs (see Section 7.4.7.2). 
• 
Administer TB risk questionnaire (see Section 7.4.9). 
• 
Perform chest X-ray (see Section 7.4.7.5). 
− Chest X-ray need not be conducted if performed and evaluated within 8 weeks prior 
to Screening, and if the films or images are available and included in the subject's 
source documents. 
• 
Perform joint counts (Independent Joint Assessment). 
− Joint assessor will be independent to the rest of the study team.  An independent joint 
assessor, blinded to other study assessments as well as the dosing regimen, will be 
identified at each study site to perform the SJC and TJC.  To ensure consistent joint 
evaluation throughout the study, individual subjects should be evaluated by the same 
joint assessor for all study visits whenever possible. 
• 
Record all AEs from the time of ICF signature. 
• 
Perform 12-lead electrocardiogram (ECG) (see Section 7.4.7.4). 

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• 
Perform IGRA as noted in Section 5.3.2.  If results are indeterminate, the IGRA can be 
repeated once. 
• 
Perform virology screen (HCV Ab, HBsAg, anti-HBs, anti-HBc, and HIV-1/HIV-2 
antibody screen; see Section 7.4.6.1). 
• 
Collect sample for serum pregnancy test. 
− This is required for females of childbearing potential only. 
• 
Collect sample to measure CRP level. 
− The CRP test can be repeated once during the Screening Period to assess eligibility, 
provided results arrive prior to the randomization date.  No extensions of the 
Screening Period will be granted for missing laboratory data unless this is due to 
central laboratory error. 
• 
Collect samples for HbA1c level, chemistry panel, and hematology assessments (see 
Section 7.4.6.1). 
− Subjects must attend study sites after fasting (water and concomitant medications are 
permitted) for at least 9 hours for the purpose of conducting the chemistry panel. 
− For subjects with abnormal laboratory values at Screening, 1 re-test is allowed during 
the Screening period if the Investigator believes that exclusionary results are due to 
laboratory error or a transient, clinically non-significant condition. 
• 
Collect samples for measurement of anti-CCP and RF. 
• 
Perform urinalysis (see Section 7.4.6.1). 
5.4.1.2 
Randomization (Visit 2, Week 0) 
Randomization may occur between 10 and 28 days following Screening. 
The results of all Screening procedures must be available at or prior to the baseline Visit 
(Visit 2) to determine eligibility for enrollment into the study.  The Investigator must 
evaluate the results of laboratory tests performed at Screening to determine if any laboratory 
test results are outside the ranges specified in the eligibility criteria, and joint counts should 
be reconfirmed before randomization; no exceptions to these requirements will be allowed. 
If a subject meets all study eligibility criteria, the Investigator will randomize the subject via 
the IWRS; if not, the subject should be recorded as a screen failure in the IWRS. 

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Baseline tests and procedures must be performed before administration of the first dose of 
study treatment. 
The following assessments will be performed: 
• 
Review eligibility criteria. 
• 
Perform joint counts (Independent Joint Assessment). 
• 
After confirmation that the subject has met all entry criteria, randomize the eligible 
subject via IWRS to 1 of 4 treatment groups. 
• 
Allocate study treatment through the IWRS. 
• 
Administer Patient Global Assessment of Disease Activity (VAS) (see Section 7.1.3). 
• 
Administer Patient Assessment of Pain (VAS) (see Section 7.1.4). 
• 
Administer HAQ-DI (see Section 7.1.10.1). 
• 
Administer SF-36, EQ-5D, FACIT-Fatigue, and WPS-RA (see Section 7.1.10). 
• 
Record AEs. 
• 
Administer Physician Global Assessment (VAS, see Section 7.1.5). 
• 
Record details of contraceptive history/status. 
• 
Record concomitant medications and concomitant non-drug therapies. 
• 
Record weight. 
• 
Perform complete physical examination (see Section 7.4.7.1). 
• 
Record vital signs. 
− BP and pulse also need to be reassessed 1 and 2 hours postdose. 
• 
Perform 12-lead ECG. 
• 
Collect samples for international normalized ratio (INR), activated partial thromboplastin 
time (aPTT), and fibrinogen. 
• 
Measure ESR (see Section 7.4.6.1). 
• 
Collect sample to measure CRP level. 

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• 
Collect samples for lipid panel and CV risk panel (see Section 7.4.6.1). 
− Subjects must attend study sites after fasting (water and concomitant medications are 
permitted) for at least 9 hours for the purpose of conducting the lipid panel 
assessment. 
• 
Collect samples for chemistry panel, hematology assessments, antinuclear antibodies 
(ANA), and double-stranded DNA (dsDNA) antibodies. 
− Subjects must attend study sites after fasting (water and concomitant medications are 
permitted) for at least 9 hours for the purpose of conducting the chemistry panel. 
• 
Collect PK sample prior to the first dose of study treatment (see Table 4). 
• 
Collect sample for analysis of ADAs. 
− The ADA sample taken at Visit 2 prior to the first dose of study treatment will serve 
as a baseline. 
• 
Perform urine pregnancy test for females of childbearing potential only. 
• 
Collect sample for urinalysis. 
• 
Administer study treatment. 
− Subcutaneous OKZ 64 mg q4w, OKZ 64 mg q2w, adalimumab 40 mg q2w, or 
placebo will be administered by study site staff once all baseline evaluations are 
complete. 
− Subcutaneous injections may be rotated among the thighs and abdomen. 
− All subjects will remain at the study site for at least 2 hours after the injection to be 
assessed for onset of any systemic injection reactions (see Section 7.4.3.2). 
5.4.1.3 
Visit 3 (Week 1) 
The following assessments will be conducted at Visit 3: 
• 
Record AEs and injection site reactions that have occurred since the previous visit. 
• 
Perform partial physical examination (see Section 7.4.7.1). 
• 
Record vital signs. 
• 
Record details of contraceptive history/status. 
• 
Record concomitant medications and concomitant non-drug therapies. 

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• 
Collect samples for chemistry panel and hematology assessments. 
− Subjects must attend study sites after fasting (water and concomitant medications are 
permitted) for at least 9 hours for the purpose of conducting the chemistry panel. 
5.4.1.4 
Visit 4 (Week 2) 
The following assessments will be conducted at Visit 4: 
• 
Administer Patient Global Assessment of Disease Activity (VAS). 
• 
Administer Patient Assessment of Pain (VAS). 
• 
Administer HAQ-DI. 
• 
Perform joint counts (Independent Joint Assessment). 
• 
Record AEs. 
• 
Administer Physician Global Assessment (VAS). 
• 
Record details of contraceptive history/status. 
• 
Record concomitant medications and concomitant non-drug therapies. 
• 
Perform partial physical examination (see Section 7.4.7.1). 
• 
Record vital signs. 
• 
Collect samples to measure CRP level. 
• 
Allocate study treatment through the IWRS. 
• 
Administer study treatment. 
− If desired, SC injections may be rotated among the thighs and abdomen. 
− All subjects will remain at the study site for 30 minutes after the injection to be 
assessed for onset of any systemic injection reactions. 
5.4.1.5 
Visit 5 (Week 4) 
The following assessments will be conducted at Visit 5: 
• 
Administer Patient Global Assessment of Disease Activity (VAS). 
• 
Administer Patient Assessment of Pain (VAS). 
• 
Administer HAQ-DI. 

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• 
Perform joint counts (Independent Joint Assessment). 
• 
Record AEs and injection site reactions that have occurred since the previous visit. 
• 
Administer Physician Global Assessment (VAS). 
• 
Record details of contraceptive history/status. 
• 
Record concomitant medications and concomitant non-drug therapies. 
• 
Record weight. 
• 
Perform partial physical examination (see Section 7.4.7.1). 
• 
Record vital signs. 
• 
Collect samples for INR, aPTT, and fibrinogen. 
• 
Collect samples to measure CRP level. 
• 
Collect samples for lipid panel and CV risk panel: 
− Subjects must attend study sites after fasting (water and concomitant medications are 
permitted) for at least 9 hours for the purpose of conducting the lipid panel 
assessment. 
• 
Collect samples for chemistry panel and hematology assessments. 
− Subjects must attend study sites after fasting (water and concomitant medications are 
permitted) for at least 9 hours for the purpose of conducting the chemistry panel. 
• 
Collect PK sample (see Table 4). 
• 
Collect sample for analysis of ADAs. 
• 
Perform urine pregnancy test for females of childbearing potential only. 
• 
Allocate study treatment through the IWRS. 
• 
Administer study treatment. 
− If desired, SC injections may be rotated among the thighs and abdomen. 
− All subjects will remain at the study site for 30 minutes after the injection to be 
assessed for onset of any systemic injection reactions. 

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5.4.1.6 
Visits 6 and 8 (Weeks 6 and 10) 
The following assessments will be conducted at Visits 6 and 8: 
• 
Record AEs and injection site reactions that have occurred since the previous visit. 
• 
Record details of contraceptive history/status. 
• 
Record concomitant medications and concomitant non-drug therapies. 
• 
Perform partial physical examination (see Section 7.4.7.1). 
• 
Record vital signs. 
• 
Allocate study treatment through the IWRS. 
• 
Administer study treatment. 
− If desired, SC injections may be rotated among the thighs and abdomen. 
− All subjects will remain at the study site for 30 minutes after the injection to be 
assessed for onset of any systemic injection reactions. 
5.4.1.7 
Visit 7 (Week 8) 
The following assessments will be conducted at Visit 7: 
• 
Administer Patient Global Assessment of Disease Activity (VAS). 
• 
Administer Patient Assessment of Pain (VAS). 
• 
Administer HAQ-DI. 
• 
Perform joint counts (Independent Joint Assessment). 
• 
Record AEs and injection site reactions that have occurred since the previous visit. 
• 
Administer Physician Global Assessment (VAS). 
• 
Record details of contraceptive history/status. 
• 
Record concomitant medications and concomitant non-drug therapies. 
• 
Administer TB risk questionnaire. 
• 
Record weight. 
• 
Perform partial physical examination (see Section 7.4.7.1). 

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• 
Record vital signs. 
• 
Collect samples to measure CRP level. 
• 
Collect samples for chemistry panel and hematology assessments. 
− Subjects must attend study sites after fasting (water and concomitant medications are 
permitted) for at least 9 hours for the purpose of conducting the chemistry panel. 
• 
Collect PK sample (see Table 4). 
• 
Collect sample for analysis of ADAs. 
• 
Perform urine pregnancy test for females of childbearing potential only. 
• 
Allocate study treatment through the IWRS. 
• 
Administer study treatment. 
− If desired, SC injections may be rotated among the thighs and abdomen. 
− All subjects will remain at the study site for 30 minutes after the injection to be 
assessed for onset of any systemic injection reactions. 
5.4.1.8 
Visit 9 (Week 12) 
The following assessments will be conducted at Visit 9: 
• 
Administer Patient Global Assessment of Disease Activity (VAS). 
• 
Administer Patient Assessment of Pain (VAS). 
• 
Administer HAQ-DI. 
• 
Administer SF-36, EQ-5D, FACIT-Fatigue, and WPS-RA. 
• 
Perform joint counts (Independent Joint Assessment). 
• 
Record AEs and injection site reactions that have occurred since the previous visit. 
• 
Administer Physician Global Assessment (VAS). 
• 
Record details of contraceptive history/status. 
• 
Record concomitant medications and concomitant non-drug therapies. 
• 
Record weight. 
• 
Perform complete physical examination (see Section 7.4.7.1). 

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• 
Record vital signs. 
• 
Collect samples for INR, aPTT, and fibrinogen. 
• 
Measure ESR. 
• 
Collect samples to measure CRP level. 
• 
Collect samples for lipid panel and CV risk panel. 
− Subjects must attend study sites after fasting (water and concomitant medications are 
permitted) for at least 9 hours for the purpose of conducting the lipid panel 
assessment. 
• 
Collect samples for chemistry panel and hematology assessments. 
− Subjects must attend study sites after fasting (water and concomitant medications are 
permitted) for at least 9 hours for the purpose of conducting the chemistry panel. 
• 
Collect PK sample (see Table 4). 
• 
Collect sample for analysis of ADAs. 
• 
Perform urine pregnancy test for females of childbearing potential only. 
• 
Collect sample for urinalysis. 
• 
Allocate study treatment through the IWRS. 
• 
Administer study treatment. 
− If desired, SC injections may be rotated among the thighs and abdomen. 
− All subjects will remain at the study site for 30 minutes after the injection to be 
assessed for onset of any systemic injection reactions. 
5.4.1.9 
Visit 10 (Week 14) 
At Week 14, subjects will be classified as responders or nonresponders as per the definitions 
detailed in Section 5.2.  This will be entered into the IWRS as described in a separate IWRS 
Manual.  Subjects who are classified as nonresponders are prescribed 1 or both of 
2 commercially available DMARDs as rescue medication in addition to the study treatment 
(see Section 6.13.3). 
The following assessments will also be conducted at Visit 10: 
• 
Perform joint counts (Independent Joint Assessment). 

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• 
Record AEs and injection site reactions that have occurred since the previous visit. 
• 
Record details of contraceptive history/status. 
• 
Record concomitant medications and concomitant non-drug therapies. 
• 
Administer TB risk questionnaire. 
• 
Perform partial physical examination (see Section 7.4.7.1). 
• 
Record vital signs. 
• 
Allocate study treatment through the IWRS. 
• 
Prescribe rescue medication for nonresponders. 
• 
Administer study treatment. 
− If desired, SC injections may be rotated among the thighs and abdomen. 
− All subjects will remain at the study site for 30 minutes after the injection to be 
assessed for onset of any systemic injection reactions. 
5.4.1.10 
Visit 11 (Week 16) 
The following assessments will be conducted at Visit 11:  
• 
Record AEs and injection site reactions that have occurred since the previous visit. 
• 
Record details of contraceptive history/status. 
• 
Record concomitant medications and significant concomitant non-drug therapies. 
• 
Perform partial physical examination (see Section 7.4.7.1). 
• 
Record vital signs. 
• 
Collect samples for chemistry panel and hematology assessments. 
− Subjects must attend study sites after fasting (water and concomitant medications are 
permitted) for at least 9 hours for the purpose of conducting the chemistry panel. 
• 
Perform urine pregnancy test for females of childbearing potential only. 
• 
Allocate study treatment through the IWRS. 
• 
Administer study treatment. 
− If desired, SC injections may be rotated among the thighs and abdomen. 

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− All subjects will remain at the study site for 30 minutes after the injection to be 
assessed for onset of any systemic injection reactions. 
5.4.1.11 
Visit 12 (Week 18) 
The following assessments will be conducted at Visit 12: 
• 
Administer Patient Global Assessment of Disease Activity (VAS). 
• 
Administer Patient Assessment of Pain (VAS). 
• 
Administer HAQ-DI. 
• 
Perform joint counts (Independent Joint Assessment). 
• 
Record AEs and injection site reactions that have occurred since the previous visit. 
• 
Administer Physician Global Assessment (VAS). 
• 
Record details of contraceptive history/status. 
• 
Record concomitant medications and concomitant non-drug therapies. 
• 
Record weight. 
• 
Perform partial physical examination (see Section 7.4.7.1). 
• 
Record vital signs. 
• 
Collect sample to measure CRP level. 
• 
Allocate study treatment through the IWRS. 
• 
Administer study treatment. 
− If desired, SC injections may be rotated among the thighs and abdomen. 
− All subjects will remain at the study site for 30 minutes after the injection to be 
assessed for onset of any systemic injection reactions. 
5.4.1.12 
Visit 13 (Week 20) 
The following assessments will be conducted at Visit 13: 
• 
Record AEs and injection site reactions that have occurred since the previous visit. 
• 
Record details of contraceptive history/status. 
• 
Record concomitant medications and concomitant non-drug therapies. 

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• 
Perform partial physical examination (see Section 7.4.7.1). 
• 
Record vital signs. 
• 
Collect samples for chemistry panel and hematology assessments. 
− Subjects must attend study sites after fasting (water and concomitant medications are 
permitted) for at least 9 hours for the purpose of conducting the chemistry panel. 
• 
Collect sample for analysis of ADAs. 
• 
Collect PK sample (see Table 4). 
• 
Perform urine pregnancy test for females of childbearing potential only. 
• 
Allocate study treatment through the IWRS. 
• 
Administer study treatment. 
− If desired, SC injections may be rotated among the thighs and abdomen. 
− All subjects will remain at the study site for 30 minutes after the injection to be 
assessed for onset of any systemic injection reactions. 
5.4.1.13 
Visit 14 (Week 22) 
The following assessments will be conducted at Visit 14: 
• 
Record AEs and injection site reactions that have occurred since the previous visit. 
• 
Record details of contraceptive history/status. 
• 
Record concomitant medications and concomitant non-drug therapies. 
• 
Perform partial physical examination (see Section 7.4.7.1). 
• 
Record vital signs. 
• 
Perform IGRA.  If results are indeterminate, the IGRA can be repeated once. 
• 
Allocate study treatment through the IWRS. 
• 
Administer study treatment. 
− If desired, SC injections may be rotated among the thighs and abdomen. 
− All subjects will remain at the study site for 30 minutes after the injection to be 
assessed for onset of any systemic injection reactions. 

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5.4.2 
Visit 15/End of Treatment (2 Weeks after the Last Dose of the Study 
Treatment)/(Week 24) 
The EoT Visit (Visit 15) will be performed 2 weeks after the last dose of study treatment for 
subjects who choose not to enter the OLE (Week 24) and for subjects who discontinue study 
treatment prematurely. 
The following assessments will be performed at the EoT Visit for all subjects: 
• 
Administer Patient Global Assessment of Disease Activity (VAS). 
• 
Administer Patient Assessment of Pain (VAS). 
• 
Administer HAQ-DI. 
• 
Administer SF-36, EQ-5D, FACIT-Fatigue, and WPS-RA. 
• 
Perform joint counts (Independent Joint Assessment). 
• 
Record AEs and injection site reactions that have occurred since the previous visit. 
• 
Administer Physician Global Assessment (VAS). 
• 
Record details of contraceptive history/status. 
• 
Record concomitant medications and concomitant non-drug therapies. 
• 
Administer TB risk questionnaire. 
• 
Record weight. 
• 
Perform complete physical examination (see Section 7.4.7.1). 
• 
Record vital signs. 
• 
Perform chest X-ray. 
− Chest X-ray need not be conducted if performed and evaluated within 8 weeks prior 
to the EoT Visit, and if the films or images are available and included in the subject’s 
source documents. 
• 
Perform 12-lead ECG. 
• 
Collect samples for INR, aPTT, and fibrinogen. 
• 
Measure ESR. 
• 
Collect sample to measure CRP level. 

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• 
Collect samples for lipid panel and CV risk panel. 
− Subjects must attend study sites after fasting (water and concomitant medications are 
permitted) for at least 9 hours for the purpose of conducting the lipid panel 
assessment. 
• 
Collect samples for chemistry panel, hematology, ANAs, and dsDNA antibodies 
assessments. 
− Subjects must attend study sites after fasting (water and concomitant medications are 
permitted) for at least 9 hours for the purpose of conducting the chemistry panel. 
• 
Collect samples for measurement of anti-CCP and RF. 
• 
Perform urine pregnancy test for females of childbearing potential only. 
• 
Collect sample for urinalysis. 
• 
Collect PK sample (see Table 4). 
• 
Collect sample for analysis of ADAs. 
5.4.3 
Safety Follow-Up:  Visits SFU-1, SFU-2, and SFU-3 
5.4.3.1 
Visit SFU-1 (Week 26 or 4 Weeks after the Last Dose of the Study Treatment) 
The following assessments will be conducted at 4 weeks after the last dose of the study 
treatment: 
• 
Record AEs. 
• 
Record details of contraceptive history/status. 
• 
Record concomitant medications and concomitant non-drug therapies. 
• 
Record weight. 
• 
Perform partial physical examination (see Section 7.4.7.1). 
• 
Record vital signs. 
• 
Collect sample to measure CRP level. 
• 
Perform urine pregnancy test for females of childbearing potential only. 

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5.4.3.2 
Visit SFU-2 (Week 30 or 8 Weeks after the Last Dose of the Study Treatment) 
The following assessments will be conducted at 8 weeks after the last dose of the study 
treatment: 
• 
Record AEs. 
• 
Record details of contraceptive history/status. 
• 
Record concomitant medications and concomitant non-drug therapies. 
• 
Record weight. 
• 
Perform partial physical examination (see Section 7.4.7.1). 
• 
Record vital signs. 
• 
Administer TB risk questionnaire. 
• 
Collect sample to measure CRP level. 
• 
Collect samples for chemistry panel and hematology assessments. 
− Subjects must attend study sites after fasting (water and concomitant medications are 
permitted) for at least 9 hours for the purpose of conducting the chemistry panel. 
• 
Collect PK sample (see Table 4). 
• 
Collect sample for analysis of ADAs. 
• 
Perform urine pregnancy test for females of childbearing potential only. 
5.4.3.3 
Visit SFU-3 (Week 44 or 22 Weeks after the Last Dose of the Study Treatment) 
The following assessments will be conducted at 22 weeks after the last dose of the study 
treatment: 
• 
Record AEs. 
• 
Record weight. 
• 
Perform complete physical examination (see Section 7.4.7.1). 
• 
Record vital signs. 
• 
Record details of contraceptive history/status. 
• 
Record concomitant medications and concomitant non-drug therapies. 

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• 
Perform 12-lead ECG. 
• 
Collect samples for INR, aPTT, and fibrinogen. 
• 
Collect samples for lipid panel and CV risk panel. 
− Subjects must attend study sites after fasting (water and concomitant medications are 
permitted) for at least 9 hours for the purpose of conducting the lipid panel 
assessment. 
• 
Collect samples for chemistry panel, hematology, ANAs, and dsDNA antibodies 
assessments. 
− Subjects must attend study sites after fasting (water and concomitant medications are 
permitted) for at least 9 hours for the purpose of conducting the chemistry panel. 
• 
Perform urine pregnancy test for females of childbearing potential only. 
• 
Collect sample for urinalysis. 
• 
Collect sample for analysis of ADAs. 
5.4.4 
Screen Failure and Re-Screening 
Subjects who are considered to be screen failures must be recorded as such in the IWRS. 
At a minimum, the demographics and eligibility criteria (i.e., inclusion and/or exclusion 
criteria) are to be documented in the eCRF for all screen failures. 
Subjects who are screen failures may be re-screened with prior approval of R-Pharm or 
R-Pharm’s designee.  The IWRS will assign a new subject number and all Screening 
assessments must be repeated (see Section 5.4.1.1), with the following exceptions: 
• 
Chest X-ray does not need to be repeated if a chest X-ray was performed within 8 weeks 
prior to the date of re-screening and films or images are available for review. 
• 
For subjects with documented LTBI who have completed at least 30 days of TB 
prophylaxis, the IGRA does not need to be repeated at the re-screening visit. 
5.4.5 
Unscheduled Visit  
It is at the Investigator’s discretion to initiate an Unscheduled Visit, if deemed necessary by 
the Investigator for the subject’s safety and well-being.  At this visit, any of the assessments 
from the Schedule of Events may be performed dependent on the presenting reason.  When a 
protocol-required procedure cannot be performed at the scheduled time the Investigator will 
document in the source documents the reason for this and any corrective and preventive 

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actions that he/she has taken to ensure that normal processes are adhered to as soon as 
possible.  R-Pharm’s designee should be informed of these incidents in a timely fashion. 

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6. STUDY TREATMENTS 
6.1 
Study Treatment Administered 
Study Treatment 
All eligible subjects will be randomly assigned in a 2:2:2:1 ratio to the OKZ, adalimumab, 
and placebo treatment groups described in Section 5.2.  A detailed description of the study 
treatment (OKZ, adalimumab, and placebo) is provided in Section 6.2. 
Background Therapy 
All subjects will continue to receive their prior background therapy (MTX) during the study. 
As per inclusion criterion No. 4 (see Section 5.3.1), subjects must have been treated with 
MTX at a dose of 15 to 25 mg/week (or ≥10 mg/week if there is documented intolerance to 
higher doses) for at least 12 weeks prior to Screening with a stable dose and an unchanged 
mode of administration (oral, SC, or IM) for at least 6 weeks prior to Screening. 
The dose of background MTX should remain unchanged throughout the study and may be 
adjusted only for safety reasons according to Investigator discretion.  If the Investigator 
judges that the dose of MTX must be adjusted for safety reasons, this may only be done once 
during the study.  If needed, a reduction in the MTX dose may be made according to the 
guidelines in Appendix 4 (see Section 13.4). 
Rescue Medication 
Starting at Week 14, nonresponders will be assigned rescue medication (sulfasalazine and/or 
hydroxychloroquine) in addition to their assigned study treatment (see Section 6.13.3). 
6.2 
Identity of Study Treatment 
Olokizumab, active comparator (adalimumab), and placebo (sodium chloride 0.9%) will be 
supplied by R-Pharm or its designee. 
6.2.1 
Olokizumab 
Olokizumab is a humanized (CDR-grafted) mAb of the IgG4/kappa isotype with the serine in 
the heavy chain hinge region being replaced with a proline residue.  The OKZ drug substance 
consists of a preparation of purified recombinant humanized mAb (CDP6038; L04041) 
presented as a solution of 160 mg/mL OKZ in 30 mM histidine hydrochloride, 60 mM 
sodium chloride, 200 mM sorbitol, and 0.03% polysorbate 80 at pH 5.6. 

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Olokizumab is presented as a sterile solution for SC injection in a 2 mL clear Type I glass 
vial, containing a target fill volume of 1.1 mL (for withdrawal of not less than 0.8 mL) or a 
target fill volume of 0.5 mL (for withdrawal of not less than 0.4 mL) of OKZ drug substance, 
at a concentration of 160 mg/mL.  The aqueous formulation buffer contains 30 mM histidine 
hydrochloride, 60 mM sodium chloride, 200 mM sorbitol, and 0.03% polysorbate 80, at 
pH 5.6.  The vial is closed with a chlorobutyl stopper and sealed with an aluminum seal with 
a polypropylene flip-off cap. 
Olokizumab is to be administered SC and will be presented in a blinded syringe so that it 
appears identical to placebo. 
An outline of the components and composition of the OKZ drug product is presented in 
Table 2. 
Table 2 
Components and Composition of OKZ (CDP6038; L04041) Drug Product 
Ingredient 
Quantity (per mL) 
Function 
OKZ drug substance 
160.000 mg 
Active ingredient 
Sodium chloridea 
3.51 mg 
Tonicity 
Polysorbate 80a 
0.3 mg 
Stabilizer 
Histidine hydrochoridea 
6.29 mg 
Buffer 
Sorbitola 
36.434 mg 
Stabilizer 
Water for injectiona 
qs to 1.0 mL 
Solvent 
Abbreviations:  OKZ = Olokizumab; qs = quantum satis (sufficient quantity). 
a.  Added during the drug substance manufacturing process. 
6.2.2 
Adalimumab 
Adalimumab (Humira, AbbVie, 2016) at a dose of 40 mg will be administered via SC 
injection q2w as an active comparator.  Adalimumab will be supplied as either a 0.4 or 0.8 
mL prefilled, single-dose syringe.  As the adalimumab syringe will be distinguishable from 
OKZ and placebo, it will be administered by unblinded study site staff who will not be 
involved in the management of study subjects. 
Adalimumab has been selected as an active comparator for the following reasons: 
• 
Based on the approved indications and various treatment guidelines in both the EU and 
the US, adalimumab is most commonly utilized as the initial therapy after the failure of 
cDMARD therapies for this patient population. 
• 
Adalimumab has demonstrated efficacy in this population of RA patients 
(Humira [adalimumab] Prescribing Information). 

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• 
The similar route of administration (SC injection) and dosing frequency for 
administration of adalimumab and OKZ will facilitate double-blinding of this study. 
• 
Adalimumab (a mAb) is more similar to OKZ than etanercept (a soluble receptor fusion 
protein), infliximab (a chimeric antibody), or certolizumab pegol (a pegylated Fab 
fragment).  Golimumab is also a mAb like OKZ, but used much less commonly for the 
treatment of RA than adalimumab. 
6.2.3 
Placebo 
Placebo (sodium chloride 0.9%) will contain no active pharmaceutical ingredients.  In the 
US, placebo will be provided as either a 10 mL vial or ampoule, depending on market 
availability.  Each placebo will be packed into a cardboard carton to contain 1 vial or 
ampoule. 
As the placebo differs in appearance from OKZ, it will be prepared by independent 
unblinded study site staff in blinded syringes with the same appearance as syringes 
containing OKZ.  Subjects randomized to the placebo group will be administered placebo by 
study site staff via SC injection q2w.  In order to maintain the blind, subjects randomized to 
receive OKZ q4w will receive placebo at the alternate q4w interval (e.g., Week 2, Week 6, 
etc). 
6.3 
Packaging and Labeling 
Study treatment will be supplied in cartons containing either OKZ (1 vial), Humira 
(1 prefilled syringe), or placebo (1 vial/ampoule).  Study treatment will be packaged and 
labeled according to Good Manufacturing Practices and all applicable local country 
regulations with information on the study protocol number, drug identification, storage 
conditions, and dosage information. 
6.4 
Storage 
The Investigator or designee is responsible for the safekeeping and correct storage of the 
study treatment (OKZ, adalimumab, and placebo) at the study site. 
Olokizumab will be shipped and stored refrigerated at +2°C to 8°C (36°F to 46°F) in a 
secure, temperature-controlled refrigerator.  Adalimumab and placebo must be stored as per 
the manufacturer’s requirements.  Olokizumab, adalimumab, and placebo will be supplied 
centrally by a clinical supplies vendor.  In order to maintain the blind, study treatments will 
be stored separately at the study site in a secure area inaccessible to blinded study site staff.  
Please refer to the Pharmacy Manual for additional details on storage requirements. 

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6.5 
Method of Assigning Subjects to Treatment Group 
Once a subject’s eligibility has been confirmed, subjects will be randomized in a 2:2:2:1 ratio 
by blinded study staff using the IWRS (an automated web randomization system).  The 
IWRS will then allocate the treatment group and assign the study treatment.  This system will 
also manage drug supply management and visit dispensation.  Blinded study staff will 
request study treatment assignments via the IWRS for all subsequent treatment study visits.  
Further details on the IWRS and requirements for each study visit can be found in the 
separate IWRS Manual. 
6.6 
Study Treatment Accountability 
The unblinded pharmacist or an unblinded delegate at the study site is responsible for 
maintaining an adequate record of the receipt and distribution of study treatment.  The study 
treatment accountability records must be kept current, available for monitoring by the 
unblinded monitor, and available for inspection at any time.  Study treatment materials 
should be kept in a secured location that is inaccessible to blinded study staff.  The used 
study treatment must be discarded as a biohazard, and the handling, disposal, and destruction 
details will be detailed in the Pharmacy Manual. 
The Investigator is responsible for maintaining an adequate record of study treatment 
administration and study treatment compliance. 
Detailed instructions on drug accountability are provided in the Pharmacy Manual. 
6.7 
Treatment Compliance 
The Investigator should promote compliance by stating that compliance is necessary for the 
subject’s safety and the validity of the study.  The prescribed dosage, timing, and mode of 
administration may not be changed.  All dates and times of study treatment administration 
and any departures from the intended regimen must be recorded on the appropriate eCRF 
page. 
An unblinded monitor will review the pharmacy records at each study site including the drug 
dispensing records on which the pharmacist or designated person should record all study 
treatment released for subject use.  The unblinded monitor will compare the dispensing 
record and vials with the individual subject’s identifiers and visit schedule to confirm that the 
subject received the correct treatment and dose, and that the dosing schedule is correct.  
Errors that are identified will be communicated to the study site staff to ensure that the errors 
are not repeated.  Unblinded study staff will be notified in an unblinded manner, and blinded 
study staff will be notified in a blinded manner.  The monitor’s report will include details of 
any missed doses, errors in dose, treatment errors, or scheduling errors and the associated 

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explanations.  All supplies and pharmacy documentation must be made available throughout 
the study for the monitor to review. 
It will not be necessary for study sites to retain used syringes.  Compliance with the study 
treatment is defined as the administration of the study treatment conforming to no less than 
90% of the dose regimen specified in this protocol since study treatment will be administered 
by study site staff.  Any subject who deviates from the dosing schedule or misses any 
scheduled treatment should be reported to R-Pharm and/or R-Pharm’s designee promptly for 
determination of possible schedule adjustments and continued eligibility (in the event of 
multiple missed doses).  If a subject is found to be persistently noncompliant, R-Pharm 
and/or R-Pharm’s designee, in conjunction with the Investigator, will make a decision as to 
whether the subject should be discontinued from the study treatment (see Section 6.11). 
6.8 
Preparation and Administration of Study Treatment 
An independent unblinded pharmacist (or designee) will prepare OKZ and placebo in 
syringes of 0.4 mL for SC injection, and adalimumab will be supplied from a central vendor 
in a prefilled, single-dose syringe of either 0.4 or 0.8 mL for SC injection.  In order to 
maintain the blind, OKZ and placebo will be prepared in blinded SC syringes as per the 
instructions in the Pharmacy Manual prior to dispensing, in a manner that both treatments 
will be identical in appearance.  Adalimumab will also be masked; however, as adalimumab 
is supplied in a larger SC syringe, the size of the masked syringe will be distinguishable from 
OKZ and placebo. 
Study sites should arrange to prepare the SC syringes in a way timed to avoid exceeding the 
stipulated stability time of the prepared product.  The solution may remain in the syringe for 
a maximum of 4 hours prior to its administration.  The prepared SC syringes should be 
warmed at room temperature prior to study treatment administration. 
At randomization, subjects will be randomly assigned to receive 1 of the 4 treatments 
discussed in Section 5.2.  A qualified unblinded study team member who will not be 
involved in the management of study subjects will administer the assigned study treatment as 
a single SC injection q2w or q4w at the relevant time points as per Table 1.  Subjects will be 
dosed individually and away from other subjects to ensure that differences between OKZ, 
adalimumab, and placebo cannot be observed.  To maintain the blind, the unblinded study 
site staff will be trained in methods that must be followed and documented to prevent 
subjects from observing which SC injection they receive.  Guidance on specific blinding 
procedures will be provided in the Study Reference Manual.  If desired, SC injections may be 
rotated among the thighs and abdomen.  All subjects will remain at the study site for at least 
30 minutes following each administration of study treatment (or 2 hours after Visit 2 [Week 
0]) to be assessed for onset of any systemic injection reactions (see Section 7.4.3.2). 

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The date, time, and location of the SC injection should be recorded in the eCRF.  The 
Investigator should also record in the eCRF whether or not the full dose was administered. 
There must be at least 1 week between each administration of the study treatment (refer to 
Section 5.4 for the visit windows allowed for each study visit). 
Detailed instructions on study treatment preparation and handling are provided in the 
Pharmacy Manual. 
6.9 
Selection and Timing of Dose for Each Subject 
Subjects will be assigned study treatment (see Section 5.2) as discussed in Section 6.5. 
6.10 Dose Adjustments  
Dose adjustments for OKZ, adalimumab, and placebo are not allowed in this study.  For 
guidelines regarding dose reduction of MTX, refer to Appendix 4 (see Section 13.4). 
6.11 Discontinuation of Study Treatment 
All subjects are free to discontinue study treatment at any time, for any reason, specified or 
unspecified, and without prejudice to further treatment. 
If discontinuation of study treatment occurs for any reason, the Investigator must make every 
effort to determine the primary reason for a subject’s discontinuation of study treatment and 
record this information on the source documents and appropriate eCRF. 
In all cases, if a subject discontinues from the study treatment, all efforts will be made to 
have them continue in the study; all visits and scheduled procedures (see Section 5.4) should 
be performed unless the subject also withdraws informed consent to participate in the study 
(see Section 5.3.5).  If a subject who discontinues study treatment does not return for a 
scheduled visit, every effort should be made to contact the subject.  In all circumstances, 
every effort should be made to document subject outcome. 

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6.11.1 
Temporary Discontinuation of Study Treatment 
The following laboratory abnormalities require prompt retesting following the reporting of 
the initial abnormal result (within 72 hours for abnormal LFTs and within 5 days for all other 
abnormal results): 
• 
Any single ALT and/or AST elevation >3× ULN, regardless of total bilirubin (repeat 
laboratory testing must include total bilirubin, direct and indirect bilirubin, 
gamma-glutamyl transferase (GGT), INR, alkaline phosphatase, creatine phosphokinase, 
and hematology assessment) 
• 
Neutrophil count <1000×106/L (<1000 /mm3) 
• 
Lymphocyte count <500×106/L (<500 /mm3) 
• 
Platelet count <100,000 platelets/mm3 
• 
Any single hemoglobin value <8.0 g/dL or one that drops ≥20 g/L (2 g/dL) below 
baseline 
The next dose of study treatment will be held/interrupted if: 
• 
Results from the repeat laboratory testing are not available at the time of the next 
scheduled dose 
• 
ALT and/or AST remain >3× ULN with total bilirubin ≤2× ULN after repeat laboratory 
testing and there are no symptoms consistent with hepatic injury (fatigue, nausea, 
vomiting, right upper quadrant pain or tenderness, fever, or rash).  The Investigator may 
consider restarting study treatment only after discussion with the R-Pharm Medical 
Advisor or designee (see also Appendix 4 [13.4]).   
Clinically significant laboratory abnormalities should be re-tested and followed until 
resolution, stabilization, or return to baseline values, and the Investigator should contact the 
Medical Monitor for guidance regarding restarting the study treatment. 
Study treatment should not be administered to subjects with active or clinically significant 
infections. 
Temporary interruption of study treatment should also be considered if, at the discretion of 
the Investigator, it is necessary for safety reasons (e.g., negative trends during laboratory 
monitoring or remaining abnormalities after retesting which do not require premature 
discontinuation of the study treatment but could be harmful for the patient according to the 
Investigator’s judgement, or other clinically significant newly diagnosed co-morbidity that 

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requires additional assessments for clarification of the diagnosis, and the severity of which 
could worsen if study treatment is continued). 
The Investigator should contact the Medical Monitor for guidance regarding restarting the 
study treatment. 
6.11.2 
Permanent Discontinuation of Study Treatment 
The criteria for enrollment are to be followed explicitly. 
If a subject who does not meet enrollment criteria is inadvertently enrolled, R-Pharm or 
R-Pharm’s designee must be informed immediately and the subject must immediately and 
permanently discontinue study treatment. 
If, in the opinion of the Investigator, a subject is consistently noncompliant with the protocol 
in regards to study procedures, use of concomitant medications, or dosing with the study 
treatment, the case will be reviewed by R-Pharm on a case-by-case basis and noncompliant 
subjects can be discontinued from the study treatment.  If the Investigator judges that the 
subject’s health is deteriorating or not improving, the Investigator can elect to discontinue the 
subject from the study treatment.  Appropriate standard of care, at the discretion of the 
Investigator, will be initiated. 
In addition to the above, study treatment will be discontinued in the following circumstances: 
• 
Investigator decides that the subject should be discontinued from study treatment.  If this 
decision is made because of an intolerable AE or a clinically significant laboratory value, 
the study treatment is to be discontinued, appropriate measures are to be taken, and 
R-Pharm or R-Pharm’s designee is to be notified. 
• 
Subject is unwilling to continue the study treatment.  If the subject discontinues from the 
study treatment, the Investigator should inquire about the reason for discontinuing. 
• 
Subject presents with any of the following elevated LFTs (see also Appendix 4 
[Section 13.4]): 
− ALT or AST elevations >8× ULN at any time, regardless of total bilirubin or 
accompanying symptoms 
− ALT or AST >5× ULN for ≥2 weeks regardless of total bilirubin or accompanying 
symptoms 
− ALT or AST elevations >3× ULN and total bilirubin value >2× ULN 

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− ALT or AST elevations >3× ULN accompanied by symptoms consistent with hepatic 
injury (fatigue, nausea, vomiting, right upper quadrant pain or tenderness, fever, or 
rash) 
• 
Subject presents with any of the following laboratory abnormalities: 
− Absolute neutrophil count <500×106/L (<500 /mm3) 
− Two sequential lymphocyte counts <500×106/L (<500 /mm3) 
− Platelet count <50×109/L (<50,000 /mm3 or <50,000×106/L) 
− Two sequential hemoglobin values ≤8.0 g/dL and decreased ≥20 g/L (2 g/dL) below 
Screening value 
− Creatinine value >2× ULN 
• 
Subject has confirmation of a pregnancy during the study, as evidenced by a positive 
pregnancy test. 
• 
R-Pharm, a regulatory agency, or an ethical committee stops the study for any reason. 
• 
Administration of a live vaccine during the study. 
• 
Subject has a GI perforation. 
• 
Subject has a severe or life-threatening infection that requires hospitalization (which is 
also an SAE; see Section 7.4.2). 
− Confirmed active TB is an SAE (see Section 7.4.2), must be recorded on the relevant 
AE pages of the eCRF, and will be provided to R-Pharm in accordance with SAE 
reporting requirements as outlined in Section 7.4.5.2.  As with all SAEs, periodic 
follow-up reports should be completed according to protocol requirements (i.e., 
through 22 weeks of safety follow-up) until such time as the TB infection resolves. 
6.12 Blinding 
This is a randomized, double-blind, placebo- and active-controlled study in which the study 
treatments are distinguishable (see Section 6.2).  However, the treatment each subject will 
receive will not be disclosed to the blinded study site staff, including the Investigator, study 
coordinator, subject, R-Pharm, or R-Pharm’s designee.  Since the study treatments are 
distinguishable, they will be prepared by the unblinded pharmacist (or their unblinded 
designee) and administered by a trained, unblinded study team member who will not be 
involved in the management of study subjects (see Section 6.8).  Subjects will be dosed 

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individually and away from other subjects and blinded study team members to ensure that 
differences between OKZ, adalimumab, and placebo cannot be observed.  In addition, the 
unblinded study site staff will be trained in methods that must be followed and documented 
to prevent subjects from observing which SC injection they receive.  Guidance on specific 
blinding procedures will be provided in the Study Reference Manual.  Access to 
randomization codes will be restricted.  The treatment codes will be held by the IWRS.  Only 
the unblinded pharmacist (or their unblinded designee) or dedicated unblinded study staff 
who are not directly involved in subject management will be aware of the randomized drug 
assignment.  The storage and preparation of the study treatment will be at a secured location 
that is not accessible to blinded study staff. 
Additional measures to ensure that both Investigators and subjects remain blinded to study 
treatment include the following: 
• 
Joint assessments will be made by an independent assessor, blinded to both the dosing 
regimen and all other study assessments. 
• 
Laboratory results for CRP and ESR samples collected during the Treatment Period will 
not be available to blinded study site staff.  As ESR will be tested locally, the testing will 
be performed, reviewed, and registered by unblinded study site staff who are not 
responsible for managing subjects. 
• 
Certain efficacy assessments (ACR20, ACR50, ACR70, DAS28 (CRP), DAS28 (ESR), 
SDAI, and CDAI) will not be calculated by the Investigator during the course of the 
study, but will instead be computed in the statistical database for analysis purposes. 
All blinding procedures should be respected. 
Members of the independent DSMB will separately review safety data during the study.  In 
the event that ongoing safety monitoring uncovers an issue that needs to be addressed by 
unblinding at the treatment group level, only members of the DSMB are permitted to conduct 
additional analysis of the safety data. 
6.12.1 
Unblinding 
The process for unblinding will be handled through the IWRS, which will be accessible at all 
times.  Investigators are strongly discouraged from requesting the blind be broken for an 
individual subject, unless there is a subject safety issue that requires unblinding and would 
change subject management.  Any study site that breaks the blind under inappropriate 
circumstances may be asked to discontinue its participation in the study.  If the blind is 
broken, it may be broken for only the subject in question.  The Investigator should make 
every effort to discuss the subject’s case with R-Pharm (or its designee) prior to unblinding. 

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R-Pharm and/or R-Pharm’s designee must be notified immediately if a subject and/or 
Investigator is unblinded during the course of the study.  Pertinent information regarding the 
circumstances of unblinding of a subject’s treatment code must be documented in the 
subject’s source documents and eCRFs. 
6.13 Prior and Concomitant Treatments 
Concomitant treatment with MTX is detailed in Section 6.1.  Specifically, at the discretion of 
the Investigator, the dose of MTX can be reduced once during the study for safety reasons 
according to the guidelines in Appendix 4 (see Section 13.4). 
Concomitant treatment with folic acid ≥5 mg per week or equivalent is required for all 
subjects starting by Visit 2 (Week 0).  Folic acid or equivalent should not be taken on the 
same day as MTX. 
Other specifically allowed medications are discussed in Section 6.13.2. 
Specific treatments prohibited prior to (as applicable) and during the course of the study are 
described in Table 3.  Other medications and non-drug therapies not listed within Table 3 that 
are considered necessary for the subject’s safety and well-being may be given at the 
discretion of the Investigator and recorded in the appropriate sections of the eCRF.  All 
medications/treatments received within 4 weeks prior to the Screening Visit will be recorded 
in the eCRF.  Prior MTX and all other treatments for RA for the 6 months prior to the 
Screening Visit will be recorded in the eCRF.  Doses, route of applications, duration of 
treatment, and reasons for prescription are also to be recorded. 
A caution regarding cytochrome P (CYP) and transporter proteins is discussed in 
Section 6.13.1. 

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Table 3 
Prohibited Medications 
Treatment 
Restriction 
cDMARDs other than MTX 
• 
Treatment with cDMARDs other than MTX is prohibited during the 
entire study, with the exception of sulfasalazine and/or 
hydroxychloroquine, which are permitted as rescue medication for 
nonresponders starting at Week 14 as described in Section 6.13.3. 
• 
Prior use of cDMARDs other than MTX within the following windows 
prior to baseline is exclusionary (cDMARDs should not be discontinued 
to facilitate a subject’s participation in the study, but should instead have 
been previously discontinued as part of a subject’s medical management 
of RA): 
o 
4 weeks for sulfasalazine, azathioprine, cyclosporine, 
hydroxychloroquine, chloroquine, gold, penicillamine, minocycline, 
or doxycycline 
o 
12 weeks for leflunomide unless the subject has completed the 
following elimination procedure at least 4 weeks prior to baseline:  
cholestyramine at a dosage of 8 grams 3 times daily for at least 
24 hours, or activated charcoal at a dosage of 50 grams 4 times a day 
for at least 24 hours 
o 
24 weeks for cyclophosphamide 
bDMARDs/ 
kinase inhibitors 
• 
Treatment with any licensed or investigational biologics directly or 
indirectly targeting IL-6 or IL-6R (including tofacitinib or other JAK or 
SYK inhibitors) is prohibited during the entire study and their use prior to 
Screening is exclusionary. 
• 
Treatment with cell-depleting therapies, including anti-CD20 agents or 
investigational agents (e.g., CAMPATH, anti-CD4, anti-CD5, anti-CD3, 
and anti-CD19), is prohibited during the entire study and their use prior to 
Screening is exclusionary. 
• 
Treatment with bDMARDs, including TNFi therapy, is prohibited during 
the entire study and their use prior to Screening is exclusionary. 
Corticosteroids 
• 
Treatment with an oral glucocorticoid greater than 10 mg/day prednisone 
or equivalent or a change in dosage within 2 weeks prior to baseline is 
exclusionary. 
• 
Use of parenteral glucocorticoids within 4 weeks prior to baseline is 
exclusionary.  Use of parenteral glucocorticoids is strongly discouraged 
during the entire study, but limited use is allowed in the following 
circumstance: 
o 
No more than 2 joints may be injected at or after Week 14 after all 
study assessments for this time point are performed.  The injection 
must not exceed 40 mg methylprednisolone or equivalent cumulative 
dose.  Injected joints must be rated as having their pre-injection status 
for the remainder of the study. 

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Treatment 
Restriction 
NSAIDs 
• 
NSAIDs are prohibited during the entire study with the following 
exceptions: 
o 
Stable doses of NSAIDs are permitted during the study if the subject 
has received stable doses for ≥2 weeks prior to baseline (see 
Section 6.13.2).  Doses of NSAIDs must be kept constant throughout 
the entire study unless the Investigator changes the dose for safety 
reasons.  Switching of NSAIDs is not allowed.  However, if the 
subject has an AE that requires discontinuation of the NSAID, an 
alternative NSAID may be initiated per the local label (if not 
contraindicated). 
• 
Aspirin use at daily doses up to 325 mg is permitted if indicated for CV 
protection.  At this dose, aspirin will not be considered an NSAID. 
Analgesics 
• 
Analgesics, including opioids, are prohibited during the entire study with 
the following exception (see Section 6.13.2):  
o 
Paracetamol/acetaminophen:  Maximum 2000 mg per day (maximum 
1000 mg per dose).  Paracetamol/acetaminophen are not to be taken 
within 24 hours prior to joint assessment, including baseline 
assessment. 
Hyaluronic acid 
• 
Intra-articular hyaluronic acid is prohibited during the entire study and its 
use within 4 weeks prior to baseline is exclusionary.  
Vaccination 
• 
Live vaccinations are prohibited during the entire study and their use 
within 12 weeks prior to baseline is exclusionary. 
Abbreviations:  AE = adverse event; bDMARD = biologic disease-modifying anti-rheumatic drug; 
cDMARD = conventional disease-modifying anti-rheumatic drug; CV = cardiovascular; 
DMARD = disease-modifying anti-rheumatic drug; IL-6 = interleukin-6; IL-6R = IL-6 receptor; JAK = Janus 
kinase; MTX = methotrexate; NSAID = non-steroidal anti-inflammatory drug; SC = subcutaneous(ly); 
SYK = spleen tyrosine kinase; TNFi = tumor necrosis factor-α inhibitor. 
6.13.1 
Olokizumab Potential Impact on Cytochrome P and Transporter Pathways 
Based on nonclinical data (refer to the most recent version of the Investigator’s Brochure), it 
is possible that OKZ may reverse IL-6-mediated inhibition of CYP or transporter pathways 
such as CYP1A1/2, 2B6, 2C9, 3A4/5, and 2C19 and sodium/taurocholate co-transporting 
polypeptide.  If CYP or transporter activity is de-suppressed (i.e., increased to any relevant 
extent), this may result in decreased level of drugs eliminated by these pathways.  As such, 
OKZ may have clinical relevance for CYP substrates with narrow therapeutic index and for 
which a change in effectiveness may be undesirable.  Investigators are advised to monitor 
substrates with a narrow therapeutic index (as noted in their respective package inserts/drug 
labels) and to contact the Medical Monitor to discuss any potential concerns about 
concomitant medications. 

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6.13.2 
Allowed Medications 
The following medications are allowed (non-exhaustive list), including clarifications of the 
above prohibited medications: 
• 
Inhaled corticosteroids 
• 
Topical corticosteroids 
• 
Oral corticosteroids 
− Doses of ≤10 mg/day of prednisone or equivalent are permitted as long as the dose 
was not changed within the 2 weeks prior to baseline; dose adjustments are not 
permitted during the study unless the Investigator changes the dose for safety reasons. 
• 
Intra-articular corticosteroids 
− No more than 2 joints may be injected during the study at or after Week 14, after all 
study assessments for this time point are performed.  The cumulative dose for both 
injections must not exceed 40 mg methylprednisolone or equivalent.  Joints treated 
with IA corticosteroids must be rated with their pre-injection status for the remainder 
of the study and should be omitted from all subsequent joint assessments (see 
Sections 7.1.2, 7.1.6, and 7.1.7). 
• 
NSAIDs 
− The subject must have received a stable dose for ≥2 weeks prior to baseline, and the 
dose must be kept constant throughout the entire study unless the Investigator 
changes the dose for safety reasons. 
• 
Analgesic treatment with paracetamol/acetaminophen is permitted up to a maximum dose 
of 2000 mg per day (maximum 1000 mg per dose) or up to the maximum dose in the 
local label, whichever is lower.  Paracetamol/acetaminophen are not to be taken within 
24 hours prior to joint assessment, including baseline assessment. 
6.13.3 
Rescue Medication Starting at Week 14 
Subjects will be classified in terms of their response to study treatment at Week 14, with 
nonresponders defined as all subjects who do not improve by at least 20% in both SJC and 
TJC (66-68 joint assessment).  Nonresponders in all groups will be prescribed sulfasalazine 
and/or hydroxychloroquine according to the local label of the prescribed drug(s) as a rescue 
medication starting at or as close as possible to Week 14, in addition to the assigned study 
treatment. 

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The maximum allowed doses of sulfasalazine and hydroxychloroquine are: 
• 
Sulfasalazine:  3 g per day 
• 
Hydroxychloroquine:  400 mg per day 
Nonresponders at Week 14 will remain blinded to their assigned treatment.  Rescue 
medication will be administered as open-label treatment.  The choice of rescue medication 
(sulfasalazine, hydroxychloroquine, or both) should be made according to local practice, and 
the assigned rescue medication regimen should be maintained throughout the study. 
For subjects who receive rescue medication, periodic safety evaluations for toxicity resulting 
from sulfasalazine and/or hydroxychloroquine should be undertaken as per the drug label and 
local guidelines. 
6.14 Medical Treatment for Subjects after End of Study 
After completion of the 24-week, double-blind Treatment Period, subjects will either roll 
over into the long-term OLE study or enter the Safety Follow-Up Period.  For subjects who 
complete the study without entering the OLE and for all subjects who discontinue study 
treatment prematurely, it is the responsibility of the Investigator to choose adequate 
treatment. 

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7. EFFICACY, SAFETY, PHARMACOKINETIC, AND 
HEALTH OUTCOME ASSESSMENTS 
7.1 
Efficacy Assessments 
7.1.1 
American College of Rheumatology 20%/50%/70% Response Criteria 
ACR20/ACR50/ACR70 will not be calculated by the Investigator during the course of the 
study, but will be computed in the statistical database for analysis purposes. 
The number of subjects who achieve an ACR20, ACR50, or ACR70 response at various time 
points will be calculated for OKZ, adalimumab, and placebo.  The calculations are based on a 
≥20%, ≥50%, and ≥70% improvement from baseline in the SJC assessed in 66 joints and in 
the TJC assessed in 68 joints; and a ≥20%, ≥50%, and ≥70% improvement from baseline in 
at least 3 of the 5 remaining core set measures:  
• 
Patient Global Assessment of Disease Activity (VAS) 
• 
Patient Assessment of Pain (VAS) 
• 
HAQ-DI 
• 
Physician Global Assessment (VAS) 
• 
Level of acute phase reactant (CRP or ESR, using level of CRP in this study) 
7.1.2 
66-68 Joint Assessment 
The 66-68 joint assessment evaluates 66 joints for swelling and 68 joints for tenderness and 
pain on motion.  The hip joints can be assessed for tenderness, but not for swelling.  The 
following joints are included: 
• 
Temporomandibular; sternoclavicular; acromioclavicular; shoulders; elbows; wrists; 
interphalangeal (IP) on digit 1; distal interphalangeals on digits 2 to 5; proximal 
interphalangeals (PIP) on digits 2 to 5; metacarpophalangeal (MCP) on digits 1 to 5; hips 
(tenderness only); knees; ankles and tarsus; metatarsals; IP on toe 1; PIP on toes 2 to 5; 
and metatarsophalangeals (MTP) on toes 1 to 5 
As noted in Table 1, the joint assessor will be independent to the rest of the study team.  An 
independent joint assessor, blinded to other study assessments as well as the dosing regimen, 
will be identified at each study site to perform the SJC and TJC.  To ensure consistent joint 
evaluation throughout the study, individual subjects should be evaluated by the same joint 
assessor for all study visits whenever possible. 

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Artificial, missing, and ankylosed joints are excluded from both tenderness and swelling 
assessments.  If joints are missing or not able to be assessed, the number of joints will be 
weighted by the actual number of assessable joints, and the missing or not assessable joints 
should be marked as “not assessed” for all subsequent joint assessments for the remainder of 
the study.  If a subject receives IA corticosteroids at or after Week 14 (see Section 6.13), any 
treated joints should be omitted from all subsequent joint assessments and should be rated 
with their pre-injection status for the remainder of the study. 
7.1.3 
Patient Global Assessment of Disease Activity (Visual Analog Scale) 
Subjects will assess the overall disease activity by responding to the following: 
• 
Considering all the ways in which illness and health conditions may affect you at this 
time, please make a mark below to show how you are doing, using a 100 mm VAS where 
0 is “very well” and 100 is “very poorly.” 
7.1.4 
Patient Assessment of Pain (Visual Analog Scale) 
Subjects will rate their short-term arthritis pain by responding to the question: 
• 
How much pain are you experiencing because of your illness AT THIS TIME? Place a 
vertical (I) mark on the line to indicate the severity of the pain, using a 100 mm VAS 
where 0 is “no pain” and 100 is “severe pain.” 
7.1.5 
Physician Global Assessment (Visual Analog Scale) 
The Investigator will rate the overall status of the subject for the day of the visit, with respect 
to RA signs and symptoms and the functional capacity of the subject.  The Investigator will 
respond to the following: 
• 
Mark an X on the line below to indicate disease activity (independent of the patient’s 
self-assessment).  A 100 mm VAS will be used, where 0 is “no disease activity” and 100 
is “maximal disease activity.” 
7.1.6 
Disease Activity Score 28-Joint Count (C-Reactive Protein) 
The DAS28 (CRP) will not be calculated by the Investigator during the course of the study, 
but will be computed in the statistical database for analysis purposes.  The DAS28 (CRP) 
will be kept blinded after Screening. 

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The DAS28 (CRP) will be calculated using the SJC (28 joints), TJC (28 joints), CRP level, 
and the Patient Global Assessment of Disease Activity (VAS) (in mm) according to the 
following formula: 
DAS28 (CRP) = 0.56 × √(TJC) + 0.28 × √(SJC) + 0.36 × lognat (CRP+1) +  
0.014 × Patient Global Assessment of Disease Activity (VAS) + 0.96 
The 28 joints evaluated for the SJC and TJC are as follows: 
• 
Shoulders, elbows, wrists, IP on digit 1, PIP on digits 2 to 5, MCP on digits 1 to 5, and 
knees 
Details of the joint assessment process are provided in Section 7.1.2. 
7.1.7 
Disease Activity Score 28-Joint Count (Erythrocyte Sedimentation Rate) 
The DAS28 (ESR) will not be calculated by the Investigator during the course of the study, 
but will be computed in the statistical database for analysis purposes.  The DAS28 (ESR) will 
be kept blinded after Screening. 
The DAS28 (ESR) will be calculated using the SJC (28 joints), TJC (28 joints), 
ESR (mm/hour), and the Patient Global Assessment of Disease Activity (VAS) (in mm) 
according to the following formula: 
DAS28 (ESR) = 0.56 × √(TJC) + 0.28 × √(SJC) + 0.70 × lognat (ESR) + 0.014 × 
Patient’s Global Assessment of Disease Activity (VAS) 
The 28 joints evaluated for the SJC and TJC are as follows: 
• 
Shoulders, elbows, wrists, IP on digit 1, PIP on digits 2 to 5, MCP on digits 1 to 5, and 
knees. 
Details of the joint assessment process are provided in Section 7.1.2. 
7.1.8 
Simplified Disease Activity Index 
The SDAI will not be calculated by the Investigator during the course of the study, but will 
be computed in the statistical database for analysis purposes. 
The SDAI will be calculated using the SJC (28 joints), TJC (28 joints), CRP (mg/dL), the 
Patient Global Assessment of Disease Activity (VAS) (in cm), and the Physician Global 
Assessment (VAS) (in cm) according to the following formula: 
SDAI = SJC + TJC + Patient Global Assessment of Disease Activity (VAS) + Physician 
Global Assessment (VAS) + CRP 

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7.1.9 
Clinical Disease Activity Index 
The CDAI will not be calculated by the Investigator during the course of the study, but will 
be computed in the statistical database for analysis purposes. 
The CDAI will be calculated using the SJC (28 joints), TJC (28 joints), the Patient Global 
Assessment of Disease Activity (VAS) (in cm), and the Physician Global Assessment (VAS) 
(in cm) according to the following formula: 
CDAI = SJC + TJC + Patient Global Assessment of Disease Activity (VAS) + Physician 
Global Assessment (VAS) 
7.1.10 
Health Assessments and Patient-Reported Outcomes  
The PROs that will be utilized for efficacy assessments are discussed in this section. 
7.1.10.1 
Health Assessment Questionnaire – Disability Index 
The HAQ-DI is a patient-reported questionnaire that provides an assessment of the impact of 
the disease and its treatment on physical function.  The HAQ-DI assesses the degree of 
difficulty experienced in 8 domains of daily living activities using 20 questions.  The 
domains are dressing and grooming, arising, eating, walking, hygiene, reach, grip, and 
common daily activities, and each domain (activity) consists of 2 or 3 items.  For each 
question, the level of difficulty is scored from 0 to 3 where 0 = without any difficulty, 
1 = with some difficulty, 2 = much difficulty, and 3 = unable to do.  Each category is given a 
score by taking the maximum score of each question (i.e., question in each category with the 
highest score for that category). 
If the maximum score is 0 or 1, but a device related to that category is used, or help from 
another person is provided for the category, then the category score is increased to 2.  If the 
category score is already a 2 (or above), the score in that category remains 2 with or without 
any aids or device use.  If the subject does not provide an answer for any questions within a 
category, no score will be provided for that category.  The HAQ-DI will be calculated by 
dividing the sum of the category scores by the number of categories with at least 1 question 
answered.  If fewer than 6 categories have responses, no disability score will be calculated. 
The HAQ-DI will also include patient assessments of pain and health on a scale of 0 to 100. 
7.1.10.2 
Short Form-36 
The SF-36 health survey is a patient-reported survey of health; it is commonly used in health 
economics as a variable in the quality-adjusted life year (QALY) calculation to determine the 
cost-effectiveness of a health treatment.  The SF-36 consists of 8 scaled scores, which are the 
weighted sums of the questions in their section.  Each scale is directly transformed into a 0 to 

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100 scale on the assumption that each question carries equal weight.  The lower the score, the 
more disability.  The higher the score, the less disability (i.e., a score of zero is equivalent to 
maximum disability and a score of 100 is equivalent to no disability). 
The 8 domains of the SF-36 are as follows: 
• 
Vitality 
• 
Physical functioning 
• 
Bodily pain 
• 
General health perceptions 
• 
Physical role functioning 
• 
Emotional role functioning 
• 
Social role functioning 
• 
Mental health 
7.1.10.3 
European Quality of Life – 5 Dimensions 
The conceptual basis of the EQ-5D is the holistic view of health, including both the medical 
definition and the fundamental importance of independent physical, emotional, and social 
functioning.  The concept of health in EQ-5D also encompasses both positive aspects 
(well-being) and negative aspects (illness). 
The EQ-5D consists of a questionnaire and a VAS and is a self-rated health status.  The 
EQ-5D records the subject’s perceptions of their own current overall health, and can be used 
to monitor changes with time.  The self-assessment questionnaire is a description of 
5 dimensions (i.e., mobility, self-care, usual activities, pain/discomfort, and 
anxiety/depression).  The subject is asked to grade their own current level of function in each 
dimension into 1 of 5 degrees of disability (extreme, severe, moderate, slight, or none).  The 
combination of these with the conditions “death” and “unconscious” enables a description of 
3127 different health states.  Each health state can be ranked and transformed as a single 
score called the utility. 
The EQ-5D health states may be converted into a single summary index by applying a 
formula that attaches values to each of the levels in each dimension.  The index can be 
calculated by deducting the appropriate weights from 1, the value for full health (i.e., state 
11111).  Value sets have been derived for EQ-5D in several countries using the European 

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Quality of Life-5 Dimensions Visual Analog Scale (EQ-5D VAS) valuation technique or the 
time trade-off valuation technique. 
7.1.10.4 
Work Productivity Survey – Rheumatoid Arthritis 
The WPS-RA measures the impact of RA and treatment on subject productivity within and 
outside the home during the previous month.  It contains 9 questions addressing employment 
status, productivity within and outside the home, and daily activities.  One item of the 
WPS-RA addresses current labor market participation.  This is a strong indicator of work 
ability because not working implies complete loss of paid productivity.  There are also 
normative and comparative data available on employment status.  Two items capture 
self-reported work absences due to arthritis, and 2 items capture the same concept but applied 
to non-paid work.  These are separated into full and partial days (i.e., days of work missed 
and days with productivity reduced by at least half).  Additional items capture the 
respondent's estimate of the extent to which arthritis has interfered with the subject’s work 
productivity (paid and non-paid) on a scale of 0 to 10, the number of days in the last month 
outside help was hired because of arthritis, and the number of days in the last month family, 
social, or leisure activities were missed because of arthritis. 
7.1.10.5 
Functional Assessment of Chronic Illness Therapy – Fatigue Scale 
FACIT-Fatigue is a 13-item tool that measures an individual’s level of fatigue during their 
usual daily activities during the most recent week.  The level of fatigue is measured on a 
4-point Likert scale. 
The sum of the scoring (total score) will be used for the statistical evaluation.  If an item is 
not scored, the total score will be set to missing. 
7.2 
Pharmacokinetics 
Blood samples (approximately 2 mL/sample) for the determination of OKZ concentrations in 
plasma will be collected from all subjects.  Olokizumab in plasma will be assessed as 
follows: 
• 
Blood samples will be collected from all subjects periodically throughout the study, 
including at each time a blood sample is taken during the Treatment Period for the 
determination of ADAs, with the exception of the final Follow-Up Visit (SFU-3). 
• 
At least one-third (33%) of the subjects in the OKZ treatment groups will be randomly 
selected to have their PK samples analyzed for OKZ concentrations in plasma.  The 
randomization will be such that an equal number of subjects will be included from both 
OKZ treatment groups.  Data for these subjects will be included in future planned 
population PK modeling. 

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• 
For the remaining subjects, PK samples will not be analyzed unless the subject has a 
confirmed positive ADA response.  If formation of ADAs is observed in 1 or more of the 
postdose samples, all PK samples from that subject will be analyzed. 
All PK samples will be collected at the sampling times shown in Table 4.  Blood samples 
will be taken either by direct venipuncture or an indwelling cannula inserted in a forearm 
vein.  Details on sample processing, handling, shipment, and storage are provided in a 
separate Laboratory Manual.  Tubes and preprinted labels will be provided by the central 
laboratory to the study sites. 
The following information will be captured for blood PK sample collection in each subject’s 
eCRF: 
• 
Patient number and initials 
• 
Date and time of administration of study treatment for the last 2 visits preceding the PK 
sample collection 
• 
Date and time of the blood PK sample collection 
• 
Date and time of dose administered on visit day of PK blood collection 
• 
Sampling problems will be noted in the Comments section 

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Table 4   
Overview of Sample Collection for PK and ADA Assessments 
Visit 
Weeka 
Dose 
Time Relative to OKZ Dose 
PK and ADA Sample Collectionb 
2 
0 
X 
Immediately prior to first dose 
X 
5 
4 
X 
Predose 
X 
7 
8 
X 
Predose  
X 
9 
12 
X 
Predose  
X 
13 
20 
X 
Predose 
X 
15 
24 
 
n/ac 
X 
SFU-2 
30 (+8d) 
 
n/a 
X 
SFU-3 
44 (+22d) 
 
n/a 
Xe 
Total number of samples collected for OKZ analysis 
7 
Volume of blood collected for OKZ analysis 
14 mL 
Abbreviations:  ADA = antidrug antibody; n/a = not applicable; OKZ = olokizumab; OLE = open-label 
extension; PK = pharmacokinetic(s). 
a. 
Sample collection will take place at scheduled visits within the visit windows specified in Table 1. 
b. PK samples will be collected for all subjects.  At least 33% of subjects in the OKZ treatment groups 
will be randomly selected to have their PK samples analyzed for OKZ concentrations.  The 
randomization will be such that an equal number of subjects will be included for both OKZ treatment 
groups.  For the remaining subjects, PK samples will not be analyzed unless the subject has a 
confirmed positive ADA response in any of their postdose samples. 
c. 
For subjects rolling over into the OLE study, the PK sample must be collected prior to the first dose of 
study treatment in the OLE. 
d. For subjects that discontinue study treatment prior to the final scheduled dose, Visits SFU-2 and SFU-3 
will occur +8 and +22 weeks, respectively, after the last dose of study treatment. 
e. 
At Visit SFU-3, blood sample will be collected for ADA analysis only; PK sample will not be 
collected. 
Plasma from all subjects who received OKZ will be analyzed, using appropriate bioanalytical 
methods, by R-Pharm or R-Pharm’s designee for determination of OKZ concentrations.  Full 
details of the analytical method used will be described in a separate bioanalytical report. 
Samples must be within the known stability of OKZ at the time of receipt by the 
bioanalytical laboratory to be analyzed. 
Samples collected from subjects who received placebo or adalimumab will not be analyzed 
to determine OKZ concentrations.  However, in the event of unexpected results in the 
adalimumab treatment group, samples collected from subjects who received adalimumab 
may be analyzed to determine adalimumab concentrations. 

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7.3 
Immunogenicity 
Immunogenicity will be assessed by evaluating the impact of ADAs on subject safety, 
efficacy, and PK of OKZ.  Blood samples for analysis of the incidence and titer of antibodies 
to OKZ and the incidence of any neutralizing antibodies to OKZ in plasma will be collected 
at the times shown in Table 1 and Table 4.  The ADA sample taken at Visit 2 will serve as a 
baseline. 
The actual sample collection date and exact time will be entered on the Immunogenicity 
Blood Collection eCRF page.  Sampling problems will be noted in the Comments section of 
the eCRF.  All blood samples will be taken by either direct venipuncture or an indwelling 
cannula inserted in a forearm vein.  A Laboratory Manual will be provided to the Investigator 
with detailed information on sample collection, handling, and shipment of the ADA samples.  
Tubes and preprinted labels will be provided by the central laboratory to the study sites. 
Antidrug antibody samples from all subjects who received OKZ will be analyzed, using 
appropriately validated methods, by R-Pharm or R-Pharm’s designee.  Samples will initially 
be screened for antibodies.  A confirmation assay will be used to confirm the positive status 
for samples that scored potentially positive by the Screening assay.  In confirmed positive 
samples, the relative titer of the antibody will be determined as well as whether the 
confirmed positive sample represents a neutralizing antibody. 
Samples collected from subjects who received placebo or adalimumab will not be analyzed 
to determine ADA formation against OKZ, unless warranted by unexpected study results.  
Furthermore, in the event of unexpected results in the adalimumab treatment group, samples 
collected from subjects who received adalimumab may be analyzed to determine ADA 
formation against adalimumab. 
7.4 
Safety 
Safety assessments will consist of monitoring and recording all AEs, including SAEs, 
nonserious AESIs, and pregnancies; measurement of safety laboratory assessments; 
measurement of vital signs, ECGs, physical examinations; and other tests that are deemed 
critical to the safety evaluation of the study in all subjects who receive at least 1 dose of 
study treatment.  As discussed in Section 7.4.2.3, any pregnancy that occurs while a subject 
is enrolled in the study will also be monitored and reported according to the appropriate 
regulations. 
The Investigator remains responsible for following, through an appropriate health care 
option, AEs that are serious and nonserious that caused the subject to discontinue before 
completing the study.  Any AE, including any AE still ongoing at the end of the study, 

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should be followed until it has resolved, it has a stable sequelae, the Investigator determines 
that it is no longer clinically significant, or the subject is lost to follow-up.  If no follow-up is 
provided, the Investigator must provide a justification. 
In addition to records of observations made at specific times, unexpected signs and 
symptoms and concomitant medications will be recorded in the clinical study records 
throughout the study.  Further routine medical assessments in addition to those specified in 
Table 1 may take place during the study as clinically indicated (e.g., chest X-rays to 
investigate lung lesions, ECG, etc). 
Safety measures in this study include, but are not limited to, SAEs, AEs, vital signs, body 
weight, and laboratory evaluations, and if required, this information must be present in the 
AE/SAE report made by the Investigator. 
7.4.1 
Adverse Events 
For the purposes of this study, an AE will be defined as any untoward medical occurrence in 
a subject or clinical investigation subject administered a pharmaceutical product and which 
does not necessarily have a causal relationship with this treatment.  An AE can therefore be 
any of the following: 
• 
Any unfavorable and unintended sign, symptom, or disease temporally associated with 
the use of a medicinal product, whether or not considered related to the medicinal 
product. 
− If the Investigator determines a laboratory abnormality to be clinically significant, it 
is considered a laboratory AE; however, if the abnormal laboratory value is consistent 
with a current diagnosis (or signs or symptoms if a diagnosis is not possible) and is 
not a clinically significant worsening from the baseline laboratory parameter, it 
should be documented accordingly without being reported as a separate laboratory 
AE. 
• 
Any new disease or exacerbation of an existing disease (a worsening in the character, 
frequency, or severity of a known condition). 
The Investigator is responsible for recording all AEs observed during the study from the time 
the subject signs the ICF.  All AEs are recorded throughout the study until the last visit of the 
subject.  The Investigator is responsible for the appropriate medical care of the subjects 
during the entire study. 
Each AE is to be evaluated for duration, severity, seriousness, and causal relationship to the 
investigational drug.  For all AEs, the Investigator must pursue and obtain information 

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adequate both to determine the outcome of the AE and to assess whether it meets the criteria 
for classification as an SAE.  The Investigator is required to assess causality as described 
below.  For AEs with a causal relationship to the study treatment, follow-up by the 
Investigator is required until the event has resolved, it has a stable sequelae, the Investigator 
determines it is no longer clinically significant, or the subject is lost to follow-up. 
Severity 
The severity of AEs will be characterized according to the CTCAE grades and definitions 
summarized in Table 5. 
Table 5   
CTCAE Grades and Corresponding AE Severity 
CTCAE Grade 
Corresponding AE Severity  
Grade 1   
Mild; asymptomatic or mild symptoms; clinical or diagnostic observations only; 
intervention not indicated 
Grade 2  
Moderate; minimal, local, or noninvasive intervention indicated; limiting 
age-appropriate instrumental ADL 
Grade 3  
Severe or medically significant but not immediately life-threatening; hospitalization or 
prolongation of hospitalization indicated; disabling; limiting self-care ADL 
Grade 4   
Life-threatening consequences; urgent intervention indicated 
Grade 5   
Death related to AE 
Abbreviations:  ADL = activities of daily living; AE = adverse event; CTCAE = Common Terminology Criteria 
for Adverse Events. 
Causality Assessment 
The Investigator is responsible for making an assessment of the causal relationship between 
the study treatment and the AE.  Investigators should use their knowledge of the subject, the 
circumstances surrounding the event, and an evaluation of any potential alternative causes to 
determine whether or not an AE is considered to be related to the study treatment.  The 
causal relationship between the study treatment and the AE must be characterized as 
“related” or “not related.”  The following guidance should be taken into consideration: 
• 
Temporal relationship of event onset to the initiation of the study treatment. 
• 
Course of the event, considering especially the effects of dose reduction, discontinuation 
of the study treatment, or reintroduction of the study treatment. 
• 
Known association of the event with the study treatment, or with similar treatments. 
• 
Known association of the event with the disease under study. 

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• 
Presence of risk factors in the subject or use of concomitant medications known to 
increase the occurrence of the event. 
• 
Presence of non-treatment-related factors that are known to be associated with the 
occurrence of the event. 
The Investigator should report the relatedness of each event based on the most likely causal 
relationship, and the study site staff is responsible for obtaining any missing information. 
7.4.1.1 
Eliciting Adverse Event Information 
A consistent methodology of non-directive questioning should be adopted for eliciting AE 
information at all subject evaluation time points.  Examples of nondirective questions from 
the Investigator to the subject include the following: 
• 
“How have you felt since your last clinic visit?” 
• 
“Have you had any new or changed health problems since you were last here?” 
7.4.2 
Serious Adverse Events 
An SAE experience or reaction is any untoward medical occurrence (whether considered to 
be related to the study treatment or not) that at any dose: 
• 
Results in death 
• 
Is life-threatening (the subject is at a risk of death at the time of the event; it does not 
refer to an event that hypothetically might have caused death if it were more severe) 
• 
Requires subject hospitalization or prolongation of existing hospitalization 
• 
Results in persistent or significant disability/incapacity 
• 
Is a congenital abnormality/birth defect 
• 
Other medically significant events, which do not meet any of the criteria above, but may 
jeopardize the subject and may require medical or surgical intervention to prevent 1 of 
the other serious outcomes listed in the definition above. 
− Examples of such events are blood dyscrasias (e.g., neutropenia or anemia requiring 
blood transfusion, etc) or convulsions that do not result in hospitalization. 
− Confirmed cases of active TB should be recorded and reported as SAEs. 

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− Potential hepatotoxicity events that fulfill any of the following criteria should be 
recorded and reported as SAEs: 
 ALT >3× ULN and total bilirubin >2× ULN 
 ALT >8× ULN at any time, regardless of total bilirubin or accompanying 
symptoms 
 ALT >5× ULN for ≥2 weeks, regardless of total bilirubin or accompanying 
symptoms 
 ALT >3× ULN, accompanied by symptoms consistent with hepatic injury 
(fatigue, nausea, vomiting, right upper quadrant pain or tenderness, fever, or rash) 
Any AE that results in an unplanned hospitalization or prolonged hospitalization should be 
documented and reported as an SAE.  The following hospitalization scenarios are examples 
of events not considered to be SAEs: 
• 
Hospitalization for a pre-existing condition, provided that all of the following criteria are 
met: 
− Routine treatment or monitoring of the studied indication, not associated with any 
deterioration in condition. 
− Elective or preplanned treatment for a pre-existing condition that is unrelated to the 
indication under study and has not worsened since the start of study treatment. 
− Treatment on an emergency outpatient basis for an event not fulfilling any of the 
definitions of an SAE given above and not resulting in hospital admission. 
− Social reasons and respite care in the absence of any deterioration in the subject’s 
general condition. 
Any SAEs occurring after a subject has received the last dose of study treatment will be 
collected and reported to R-Pharm’s designee through the end of the Safety Follow-Up 
Period (i.e., for a period of 22 weeks after the last dose of study treatment), regardless of the 
Investigator’s opinion of causality.  The Investigator must also inform participating subjects 
of the need to inform the Investigator of any SAE that occurs within this period.  Any SAE 
with a start date after the Safety Follow-Up Period is not required to be reported unless the 
Investigator thinks that the event may be related to either the study treatment, study treatment 
administration, or a protocol procedure. 
All deaths that occur during the protocol-specified AE reporting period, regardless of 
relationship to the study treatment, must be recorded on the SAE page in the eCRF and 

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immediately reported to R-Pharm’s designee.  This includes death attributed to progression 
of RA. 
Death should be considered an outcome and not a distinct event.  The event or condition that 
caused or contributed to the fatal outcome should be recorded as the description of event on 
the SAE page in the eCRF.  Generally, only 1 such event leading to death should be reported. 
The use of the term “sudden death” as the description of an event should only be used for 
the occurrence of an abrupt and unexpected death due to presumed cardiac causes in a subject 
with or without pre-existing heart disease, within 1 hour of the onset of acute symptoms or, 
in the case of an unwitnessed death, within 24 hours after the subject was last seen alive and 
stable.  If the cause of death is unknown and cannot be ascertained at the time of reporting, 
“unexplained death” should be recorded on the SAE page as the description of the event in 
the eCRF.  If the cause of death later becomes available (e.g., after autopsy), “unexplained 
death” should be replaced by the established cause of death. 
7.4.2.1 
Lack of Efficacy or Worsening of Rheumatoid Arthritis 
Medical occurrences or symptoms of deterioration that are anticipated as part of RA should 
be recorded as an AE if judged by the Investigator to have unexpectedly worsened in severity 
or frequency or changed in nature at any time during the study.  When recording an 
unanticipated worsening of RA on the AEs eCRF page, it is important to convey the concept 
that the condition has changed by including applicable descriptors (e.g., “accelerated RA”).  
Events that are clearly consistent with the expected pattern of progression of the underlying 
disease, as determined by the Investigator, should not be recorded as AEs; these data will be 
captured as efficacy assessment data only.  Every effort should be made to document 
progression using objective criteria.  If there is any uncertainty as to whether an event is an 
AE or due to disease progression, it should be reported as an AE. 
Any worsening of RA that meets the criteria for seriousness should be reported as an SAE. 
7.4.2.2 
Overdose 
Study treatment overdose is the accidental or intentional use of the drug in an amount higher 
than the dose being studied.  An overdose or incorrect administration of study treatment is 
not an AE unless it results in untoward medical effects.  Any study treatment overdose or 
incorrect administration of study treatment should be noted on the Study Drug 
Administration eCRF.  All AEs associated with an overdose or incorrect administration of 
study treatment should be recorded on the AEs eCRF page. 

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7.4.2.3 
Reporting and Follow-up Requirements for Pregnancies 
Pregnancies in Female Subjects 
A serum pregnancy test will be conducted on all females of childbearing potential at 
Screening, and urine pregnancy tests will be conducted thereafter as presented in the 
Schedule of Events (Table 1). 
If a subject becomes pregnant after the administration of any study treatment, R-Pharm 
and/or R-Pharm’s designee should be informed immediately.  Study treatment should be 
discontinued as soon as the pregnancy is known and the following should be completed: 
• 
The subject should immediately discontinue further administration of study treatment. 
• 
The subject should return for an EoT Visit. 
• 
All scheduled safety assessments must be performed unless contraindicated by pregnancy 
(harmful to fetus) or the subject withdraws informed consent. 
The Investigator must inform the subject of information currently known about potential 
risks and about available treatment alternatives.  The pregnancy should be followed up to 
determine outcome including spontaneous or voluntary termination, details of the birth, and 
the presence or absence of any birth defects, congenital abnormalities, or maternal and/or 
newborn complications. 
Full details will be recorded on a Pregnancy Report eCRF and submitted via the Electronic 
Data Capture (EDC) system, and reporting details will be detailed in the Study Manual.  The 
Investigator will update the Pregnancy Report eCRF with additional information as soon as 
the outcome of the pregnancy is known. 
If the outcome of the pregnancy is an SAE then this must be additionally reported as an SAE 
on the appropriate eCRF page. 
Pregnancies in Female Partners of Male Subjects 
Male subjects will be instructed through the ICF to immediately inform the Investigator if 
their partner becomes pregnant during the study and up to 3 months after the subject received 
the last injection of study treatment.  A Pregnancy Report eCRF should be completed by the 
Investigator within 1 working day after learning of the pregnancy and submitted via the EDC 
system.  Attempts should be made to collect and report details of the course and outcome of 
any pregnancy in the partner of a male subject exposed to the study treatment.  The pregnant 
partner will need to sign an Authorization for Use and Disclosure of Pregnancy Health 
Information to allow for follow-up on her pregnancy.  Once the authorization has been 

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signed, the Investigator will update the Pregnancy Report eCRF with additional information 
on the course and outcome of the pregnancy.  An Investigator who is contacted by the male 
subject or his pregnant partner may provide information on the risks of the pregnancy and the 
possible effects on the fetus, to support an informed decision in cooperation with the treating 
physician and/or obstetrician. 
7.4.3 
Adverse Events of Special Interest 
The following safety concerns were identified as AESIs based upon either the safety data 
available to date for OKZ (refer to the most recent version of the Investigator’s Brochure) or 
drug class-related events for a biologic IL-6 inhibitor: 
• 
Infections (particularly serious infections), including TB and opportunistic infections 
− Confirmed cases of active TB must also be recorded as an SAE. 
• 
Malignancies 
− The Investigator will be asked to provide relevant medical 
information/documentation (e.g., pathology/histology reports) on all malignancy 
cases, whether considered serious or not, as these cases will be recorded in the safety 
database. 
• 
Elevation of blood lipids (e.g., hypercholesterolemia, blood cholesterol increased, blood 
triglycerides increased, hypertriglyceridemia, and elevation of LDL) 
• 
Systemic injection reactions and hypersensitivity reactions, including anaphylaxis 
− Refer to Appendix 6 (Section 13.6) for details on diagnosing anaphylaxis. 
• 
GI perforation 
• 
CV events 
• 
Neutropenia, thrombocytopenia, leukocytopenia, and pancytopenia 
• 
Hepatotoxicity 
− The Investigator will be asked to provide relevant medical 
information/documentation (e.g., laboratory test results, including tests for viral 
hepatitis and, if performed, liver biopsy) on all hepatotoxicity cases, whether 
considered serious or not, as these cases will be recorded in the safety database (see 
Section 7.4.3.4). 
• 
Injection site reactions 

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• 
Demyelination in peripheral or central nervous system 
• 
Autoimmune disorders 
All of the events listed above will be analyzed as AESIs; some of these events are further 
detailed below. 
7.4.3.1 
Infections 
Frequency, duration, and severity of infectious complications along with those requiring 
treatment (e.g., antibiotic, antiviral, etc) will be monitored and evaluated.  Investigators will 
also educate subjects, parents, and/or caregivers about the symptoms of infections and will 
provide instructions on dealing with these infections. 
Physicians should exercise caution when considering the use of OKZ in subjects with a 
history of recurring infection or with underlying conditions (e.g., diabetes) that may 
predispose subjects to infections.  Study treatment should not be administered to subjects 
with active or clinically significant infection.  Vigilance for timely detection of serious 
infection is recommended for subjects receiving biologic agents for treatment of RA, as signs 
and symptoms of acute inflammation may be lessened due to suppression of the acute phase 
reaction.  Subjects must be instructed to contact their physician immediately when any 
symptom suggesting infection appears, in order to assure rapid evaluation and appropriate 
treatment.  The Investigator may be asked to provide relevant medical 
information/documentation (e.g., result of bacterial examination or cultures). 
Any infection that meets the criteria for seriousness should be reported as an SAE. 
7.4.3.2 
Systemic Injection Reactions, Including Anaphylaxis 
A systemic injection reaction is any untoward medical hypersensitivity-like event, other than 
injection site reactions, occurring during or after study treatment administration that can be at 
least possibly attributed to the study treatment.  Systemic injection reactions are further 
classified as acute and delayed based on timing and presentation of symptoms typical for 
hypersensitivity reactions. 
Acute and delayed reactions to the study treatment should be reported according to the 
judgment of the Investigator, based on the typical clinical features. 
Any systemic allergic reaction that meets the criteria for seriousness should be reported as an 
SAE. 
Subjects will be observed for AEs at the study site during the 30 minutes following each 
administration of study treatment (or 2 hours after Visit 2), and subjects will be asked to 

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contact the Investigator if any reactions occur within the 2 hours following study treatment 
injection. 
Acute injection reactions are usually defined as at least 1 of the following signs or symptoms 
occurring during or within 2 hours of the study treatment injection: 
• 
Hypotension 
• 
Urticaria 
• 
Flushing 
• 
Facial or hand edema 
• 
Throat tightness, oral cavity, or lip edema 
• 
Headache 
• 
Shortness of breath. 
The Investigator should report any AE of acute systemic injection reaction as 
“anaphylaxis” if it meets the Clinical Criteria for Diagnosing Anaphylaxis, as specified 
in Appendix 6 (Section 13.6). 
The study site must have adequate arrangements to manage anaphylactic reactions. 
Delayed injection reactions are usually defined as at least 2 of the following 4 signs or 
symptoms occurring within 1 day to 14 days following the injection: 
• 
Rash 
• 
Fever (more than 100°F [38°C]) 
• 
Polyarthralgias 
• 
Myalgias. 
7.4.3.3 
Gastrointestinal Perforation 
Timely diagnosis and appropriate treatment may reduce the potential for complications of 
diverticulitis and thus reduce the risk of GI perforations.  Therefore, subjects should be made 
aware of the symptoms potentially indicative of diverticular disease, and they should be 
instructed to alert their healthcare provider as soon as possible if these symptoms arise.  
Permanent discontinuation of study treatment is required for subjects who develop GI 
perforation. 

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Any GI perforation that meets the criteria for seriousness should be reported as an SAE. 
7.4.3.4 
Hepatotoxicity 
The Investigator will be asked to provide relevant medical information/documentation (e.g., 
laboratory test results) for all serious and non-serious cases of potential hepatotoxicity. 
Potential hepatotoxicity is defined as laboratory results that fulfill any of the following 
criteria (in all cases, AST may be substituted for ALT if ALT results are not available): 
• 
ALT >3× to ≤5× ULN 
• 
ALT >5× ULN 
• 
ALT >3× ULN and total bilirubin >2× ULN 
Laboratory results that satisfy any of the criteria for potential hepatotoxicity should be 
followed by a repeat test within 72 hours, which must include total bilirubin, direct and 
indirect bilirubin, GGT, INR, alkaline phosphatase, creatine phosphokinase, and hematology 
assessment.  After that, testing should be repeated at least weekly and followed until 
resolution, stabilization, or return to baseline values.  Additional testing may be limited to 
ALT, AST, alkaline phosphatase, and bilirubin if all other laboratory results are within 
normal limits.  The number of LFTs included in each repeat testing may be further reduced to 
include only those parameters which remain abnormal (i.e., abnormalities that stabilize, 
resolve, or return to within baseline values do not require repeat testing). 
Potential hepatotoxicity events that fulfill any of the following criteria must also be recorded 
as SAEs in the eCRF (in all cases, AST may be substituted for ALT if ALT results are not 
available): 
• 
ALT >3× ULN and total bilirubin >2× ULN 
• 
ALT >8× ULN at any time, regardless of total bilirubin or accompanying symptoms 
• 
ALT >5× ULN for ≥2 weeks, regardless of total bilirubin or accompanying symptoms 
• 
ALT >3× ULN, accompanied by symptoms consistent with hepatic injury (fatigue, 
nausea, vomiting, right upper quadrant pain or tenderness, fever, or rash) 
For SAEs of potential hepatotoxicity, the Investigator should contact the Medical Monitor for 
guidance, as additional tests are needed to investigate all potential causes of liver toxicity 
(e.g., alcohol use, hepatitis infection, biliary tract disease, and concomitant medications).  
Work-up includes, but is not limited to: 
• 
Obtaining a more detailed history of symptoms and prior or concurrent diseases. 

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• 
Obtaining a history of concomitant drug use (including nonprescription medications and 
herbal/dietary supplement preparations), alcohol use, recreational drug use, and special 
diets. 
• 
Ruling out acute viral hepatitis (types A, B, C, D, and E), cytomegalovirus, Epstein-Barr 
virus, autoimmune or alcoholic hepatitis, nonalcoholic steatohepatitis, hypoxic/ischemic 
hepatopathy, and biliary tract disease. 
• 
Obtaining a history of exposure to environmental chemical agents. 
• 
Obtaining additional tests to evaluate liver function, as appropriate (e.g., INR, direct 
bilirubin, biliary tract ultrasonography/imaging results, liver biopsy). 
• 
Considering gastroenterology or hepatology consultations. 
All additional investigations should be recorded in the eCRF via the EDC system, and all 
records should be kept as source documents at the study site. 
7.4.3.5 
Injection Site Reactions  
An injection site reaction is any untoward medical event occurring at the injection site during 
or after study treatment administration that can be at least possibly attributed to the study 
treatment (i.e., the relationship cannot be ruled out). 
An assessment of pain, redness, swelling, induration, hemorrhage, and itching at the injection 
site will be performed by a physician and recorded on the specific page of the eCRF.  At all 
specified visits (see Table 1), the assessment of injection site reactions will be made prior to 
any administration of study treatment.  All local reactions that are observed will be 
monitored until they resolve. 
7.4.4 
Study Committees 
An independent DSMB and CVAC will be established for this study. 
Members of the DSMB and CVAC will consist of at least 3 independent experts appointed 
by R-Pharm based on their expertise.  Committee members will not be Investigators in the 
study, nor will they have any conflict of interest with R-Pharm or its designee.  Members of 
the DSMB and CVAC will only serve on their appointed committee. 
Further details (e.g., frequency of data reviews and study committee composition and 
membership) will be provided in the predefined DSMB Charter and a separate CVAC 
Charter. 

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7.4.4.1 
Data Safety Monitoring Board 
The independent DSMB members will perform ongoing safety surveillance and provide 
recommendations to R-Pharm regarding study conduct.  These recommendations will be 
based mainly on the review of data for AEs and laboratory parameters.  In the event that the 
DSMB uncovers an issue that needs to be addressed by unblinding at the treatment group 
level, only members of the DSMB are permitted to conduct additional analysis of the 
unblinded safety data. 
7.4.4.2 
Cardiovascular Adjudication Committee 
The CVAC will be responsible for evaluating MACE and will remain blinded to treatment 
assignment.  The importance of the CVAC is to ensure that all potential MACE that have 
been reported are judged uniformly by a single group, using the same adjudication criteria. 
Data on the following fatal and nonfatal MACE (as further defined in the CVAC Charter) 
will be collected and the events will be adjudicated by the CVAC (as well as assessed by the 
DSMB): 
• 
Cardiovascular death 
• 
Non-fatal myocardial infarction 
• 
Non-fatal stroke of all classifications 
• 
Transient ischemic attack 
• 
Hospitalization for unstable angina requiring unplanned revascularization 
• 
Non-fatal coronary revascularization procedures 
7.4.5 
Reporting of Adverse Events 
Study site personnel will record any change in the condition(s), occurrence, and nature of any 
AEs, including clinically significant signs and symptoms of the disease under treatment in 
the study.  A pre-existing medical condition should be recorded as an AE only if the 
frequency, severity, or character of the condition worsens during the study.  When recording 
such events on the AEs eCRF page, it is important to convey the concept that the pre-existing 
condition has changed by including applicable descriptors (e.g., “more frequent headaches”).  
All AEs related to protocol procedures must be reported to R-Pharm’s designee. 
Investigators will seek information on AEs at each subject contact.  All AEs, whether 
reported by the subject or noted by study site staff, will be recorded in the subject’s medical 
record and on the AEs eCRF page. 

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All AEs that occur after the ICF is signed, regardless of severity, are to be recorded on the 
appropriate AE pages in the eCRF (either serious or nonserious).  The Investigator should 
complete all the details requested including dates of onset, severity, action taken, outcome, 
and relationship to study treatment.  Each event should be recorded separately. 
Investigators will be instructed to report to R-Pharm’s designee their assessment of the 
potential relatedness of each AE to protocol procedure, studied disease state, study treatment, 
and/or drug delivery system via eCRF. 
Study site staff will record any dosage of study treatment that exceeds the assigned dosage in 
the protocol via eCRF. 
Any clinically significant findings from laboratory test results, vital sign measurements, other 
procedures, etc. should be reported to R-Pharm’s designee via eCRF, EDC, and/or designated 
data transmission methods.  Investigators should use correct medical terminology/concepts 
when recording AEs on the AEs eCRF page, avoiding colloquialisms and abbreviations.  
Only 1 AE term should be recorded in the event field on the AEs eCRF page.  For AEs other 
than injection-related reactions, a diagnosis (if known) should be recorded on the AEs eCRF 
page rather than individual signs and symptoms (e.g., record only liver failure or hepatitis 
rather than jaundice, asterixis, and elevated transaminases).  However, if a constellation of 
signs and/or symptoms cannot be medically characterized as a single diagnosis or syndrome 
at the time of reporting, each individual event should be recorded on the AEs eCRF page.  If 
a diagnosis is subsequently established, all previously reported AEs based on signs and 
symptoms should be nullified and replaced by 1 AE report based on the single diagnosis, 
with a starting date that corresponds to the starting date of the first symptom of the eventual 
diagnosis. 
Each AE is to be evaluated for duration, severity, seriousness, and potential relatedness to the 
study treatment.  The action taken and the outcome must also be recorded in the AE page of 
the eCRF. 
7.4.5.1 
Patient-Reported Outcome Data 
Adverse event reports will not be derived from PRO data.  However, if any subject responses 
suggestive of a possible AE are identified during study site review of the PRO 
questionnaires, study site staff will alert the Investigator, who will determine if the criteria 
for an AE have been met and will document the outcome of this assessment in the subject's 
medical record per study site practice.  If the event meets the criteria for an AE, it will be 
reported on the AEs eCRF. 

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7.4.5.2 
Reporting of Serious Adverse Events 
All SAEs that occur after the subject has signed the ICF, regardless of the Investigator’s 
assessment on causality, must be recorded on the relevant pages of the eCRF and reported to 
R-Pharm according to protocol requirements. 
Investigators must report the SAE within 24 hours of first becoming aware of the event.  All 
SAEs must be reported via the EDC system by completing the relevant eCRF pages in 
English.  In the event that the EDC system is not functioning, SAEs must be reported within 
24 hours of first becoming aware of the event using the back-up paper SAE report form 
(instructions provided in the Investigator binders).  Once the EDC system is operating 
normally again, Investigators must enter the SAE in the eCRF pages.  All SAEs should be 
followed up until resolution or permanent outcome of the event or until the event is otherwise 
explained.  The timelines and procedure for follow-up reports are the same as those for the 
initial report.  R-Pharm’s designee is responsible for managing the safety database. 
R-Pharm will be alerted of all SAEs occurring during a subject’s follow-up regardless of the 
Investigator’s assessment of causality.  SAEs occurring after a subject has received the last 
dose of study treatment will be collected and reported to R-Pharm’s designee through the end 
of the Follow-Up Period (i.e., for a period of 22 weeks after the last dose of study treatment), 
regardless of the Investigator’s opinion of causality.  The Investigator must also inform 
participating subjects of the need to inform the Investigator of any SAE that occurs within 
this period.  Any SAE with a start date after the Follow-Up Period is not required to be 
reported unless the Investigator thinks that an event may be related to either the study 
treatment, study treatment administration, or a protocol procedure. 
7.4.5.3 
Reporting of Serious Adverse Events to Regulatory Authorities and 
Investigators 
R-Pharm’s designee will be responsible for reporting all suspected unexpected serious 
adverse reactions (SUSARs) and any other applicable SAEs to regulatory authorities, ethics 
committees, and Investigators, in accordance with national regulations in the countries where 
the study is conducted.  Relative to the first awareness of the event by/or further provision to 
R-Pharm’s designee, SUSARs will be submitted within 7 days for fatal and life-threatening 
events and 15 days for other SUSARs, unless otherwise required by national regulations.  
R-Pharm’s designee will also prepare an expedited report for other safety issues where these 
might materially alter the current benefit-risk assessment of OKZ or that would be sufficient 
to consider changes in the study treatment administration or in the overall conduct of the 
study.  The study site will also forward a copy of all expedited reports to the relevant 
Independent Ethics Committee (IEC) or Institutional Review Board (IRB) in accordance with 
national regulations. 

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7.4.5.4 
Follow-up of Adverse Events 
Any AEs that occur after the subject has signed the ICF until the end of the Safety 
Follow-Up Period (i.e., 22 weeks after the last dose of study treatment) will be followed up 
to resolution.  Resolution means that the subject has returned to a baseline state of health, the 
Investigator does not expect any further improvement or worsening of the AE, or the subject 
is lost to follow-up.  For AEs with a causal relationship to the study treatment, R-Pharm or its 
designee must concur with the Investigator’s assessment. 
For SAEs, nonserious AESIs, and pregnancies, R-Pharm’s designee may follow up by 
telephone, fax, electronic mail, and/or a monitoring visit to obtain additional case details and 
outcome information (e.g., from hospital discharge summaries, consultant reports, or autopsy 
reports) in order to perform an independent medical assessment of the reported case. 
7.4.5.5 
Follow-up of Serious Adverse Events by the Investigator 
Any SAEs that occur after the subject has signed the ICF until the end of the Safety 
Follow-Up Period (i.e., 22 weeks after the last dose of study treatment) regardless of the 
Investigator’s opinion of causality, will be followed up.  The Investigator should follow each 
SAE until the event has resolved to the baseline grade or better, the event is assessed as 
stable by the Investigator, the subject is lost to follow-up, or the subject withdraws consent.  
If the subject is lost to follow-up, the SAE will be categorized based on the Investigator’s last 
assessment.  Every effort should be made to follow all SAEs considered to be related to OKZ 
or study-related procedures until an outcome can be reported. 
During the study, resolution of SAEs (with dates) should be documented on the SAE page of 
the eCRF and in the subject’s medical record to facilitate source data verification.  If, after 
follow-up, return to the baseline status or stabilization cannot be established, an explanation 
should be recorded on the SAE page of the eCRF. 
All pregnancies reported during the study should be followed until pregnancy outcome. 
7.4.6 
Clinical Laboratory Evaluations 
Clinical laboratory tests will be reviewed for results of potential clinical significance at all 
time points throughout the study.  The Investigator will evaluate any change in laboratory 
values.  If the Investigator determines a laboratory abnormality to be clinically significant, it 
is considered a laboratory AE; however, if the abnormal laboratory value is consistent with a 
current diagnosis (or signs or symptoms if a diagnosis is not possible) and is not a clinically 
significant worsening from the baseline laboratory parameter, it should be documented 
accordingly without being reported as a separate laboratory AE.  The central laboratory will 
analyze the samples.  Further details of the procedures to be followed for sample collection, 

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storage, and shipment will be documented in a Laboratory Manual.  Additional and repeat 
laboratory testing not specified in Table 1 may be performed at the discretion of the 
Investigator either at the local laboratory or at the central laboratory to ensure that the safety 
of subjects is protected. 
7.4.6.1 
Laboratory Parameters 
Unless otherwise noted, the central laboratory will be used in this study to analyze routine 
blood samples.  Blood samples will be collected according to the study Schedule of Events in 
Table 1. 
The following laboratory parameters will be evaluated: 
• 
CRP:  Since the results of this test may unblind study staff, results from the central 
laboratory will be provided for Screening and baseline only.  The CRP results from 
samples collected during the Treatment Period will only be revealed following database 
lock. 
• 
ESR:  Blood for ESR will be obtained at scheduled visits and tested locally.  Since the 
results of this test may unblind study staff, testing will be performed, reviewed, and 
registered by unblinded study site staff who are not responsible for managing subjects.  
Test results will be provided to blinded study staff for baseline only.  The ESR results 
from samples collected during the Treatment Period will only be revealed following 
database lock. 
• 
Hematology:  Red blood cell count, total and differential white blood cell count, 
hemoglobin, hematocrit, and platelet count 
• 
INR, aPTT, and fibrinogen 
• 
Chemistry panel:  Urea nitrogen, creatinine, fasting glucose, calcium, sodium, potassium, 
bicarbonate, chloride, total protein, total bilirubin, direct bilirubin, indirect bilirubin, 
ALT, AST, alkaline phosphatase, GGT, and albumin 
• 
Blood pregnancy test (at Screening for women of childbearing potential only) 
• 
Urinary pregnancy testing (human chorionic gonadotropin) is required only for women 
who are of childbearing potential; may be repeated more frequently than indicated in 
Table 1 if required by local practices, IRB/IECs or local regulations, if a menstrual cycle 
is missed, or if potential pregnancy is otherwise suspected.  Additional testing that is not 
specified in Table 1 should be reported in the eCRF as unplanned testing.  Urinalysis 
pregnancy testing will be conducted locally using dipsticks provided by the central 
laboratory. 

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• 
Urinalysis:  Specific gravity, pH, protein, glucose, ketones, blood, and leukocyte esterase. 
• 
The infectious status of the following viruses will be assessed via measurement of the 
parameters in parentheses (at Screening only): 
− HIV (anti-HIV1 and anti-HIV2) 
− Hepatitis B (HBsAg, anti-HBs, and anti-HBc) 
− Hepatitis C (HCV Ab) 
• 
Lipid panel:  Total cholesterol, HDL, LDL, triglycerides, lipoprotein (a), apolipoproteins 
(apolipoprotein B [ApoB], apolipoprotein A1 [ApoA1], and ApoB:ApoA1 ratio), and 
adiponectin. 
• 
Cardiovascular risk panel:  N-terminal pro-hormone of brain natriuretic peptide 
(NT-proBNP), brain natriuretic peptide (BNP), and homocysteine. 
• 
HbA1c (at Screening only) 
• 
Anti-CCP and RF (at Screening and EoT Visit only) 
• 
ANA and dsDNA antibodies 
• 
IGRA (at Screening and Visit 14 only) 
− IGRA is to be performed at Screening (Visit 1) and the result is to be known prior to 
randomization to determine the subject’s eligibility for the study (see exclusion 
criterion No. 19 in Section 5.3.2).  If indeterminate the IGRA can be repeated once 
during the Screening Period. 
− IGRA is to be performed at Visit 14 (Week 22) for all subjects who had a negative 
IGRA result at Screening.  If indeterminate, the IGRA can be repeated once. 
 Subjects who had a positive IGRA result at Screening and were subsequently 
enrolled in the study following treating for LTBI will not undergo the scheduled 
IGRA at Visit 14 (Week 22). 
− Details of the assessment are provided in the laboratory manual. 
• 
ADAs and PK:  The actual sample collection date and exact time will be entered on the 
Immunogenicity Blood Collection eCRF page.  Sampling problems will be noted in the 
Comments section of the eCRF.  All blood samples will be taken by either direct 
venipuncture or an indwelling cannula inserted in a forearm vein.  A Laboratory Manual 
will be provided to the Investigators with detailed information on sample collection, 

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handling, and shipment.  Tubes and preprinted labels will be provided by the central 
laboratory to the study sites. 
Details regarding collection of samples, shipment of samples, reporting of results, laboratory 
reference ranges, and alerting abnormal values will be supplied to the study site before study 
site initiation in a Laboratory Manual. 
The laboratory sheets will be filed with the subject’s source documents. 
7.4.7 
Vital Signs, Physical Findings and Other Safety Assessments 
7.4.7.1 
Physical Examination 
A complete physical examination will be performed at Visit 1 (Screening), Visit 2 
(Randomization), Visit 9 (Week 12), EoT or Visit 15 (Week 24), and Safety Follow-up Visit 
SFU-3 (Week 44), as indicated in Table 1.  A complete physical examination will include 
evaluation of general appearance, skin, head, eyes, ears, nose and throat, lymph nodes, 
respiratory, CV, GI including hepatobiliary assessment, musculoskeletal, endocrine system, 
neurological systems, and urogenital system. 
At all other visits, a partial physical examination will be performed assessing the following:  
general appearance, skin (including site of study treatment injection), respiratory, CV, and 
GI. 
All significant findings that are present at Screening must be reported on the relevant 
Medical History/Current Medical Conditions eCRF.  Significant findings made after 
randomization that meet the definition of an AE must be recorded on the AEs eCRF. 
7.4.7.2 
Vital Signs 
Vital signs (temperature, heart rate, BP, and respiratory rate) will be measured as indicated in 
Table 1, and when clinically indicated.  Whenever possible, vital sign assessments should be 
performed by the same study site staff member and using the same validated device(s) 
throughout the study.  Blood pressure and heart rate should be measured after the subject 
rests 5 minutes in a sitting position. 
Not every vital sign abnormality qualifies as an AE.  A vital sign result should be reported as 
an AE if it meets any of the following criteria: 
• 
Results in a change in RA treatment (e.g., dosage modification, treatment interruption, or 
treatment discontinuation) 
• 
Results in a medical intervention or a change in concomitant therapy 
• 
Clinically significant in the Investigator’s judgment 

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It is the Investigator’s responsibility to review all vital sign findings.  Medical and scientific 
judgment should be exercised in deciding whether an isolated vital sign abnormality should 
be classified as an AE. 
7.4.7.3 
Body Weight and Height 
Body weight (to the nearest 0.1 kilogram [kg]) and height (in cm) will be recorded at the time 
points specified in Table 1.  Body weight and height should be measured in indoor clothing 
without shoes.  Whenever possible, body weight measurement should be performed by the 
same study site staff member and using the same validated scale throughout the study.  The 
subject’s body mass index will be calculated automatically in the eCRF. 
7.4.7.4 
Electrocardiogram 
A standard 12-lead ECG will be performed at the time points specified in Table 1. 
Subjects should rest in a supine position in a controlled, calm environment for at least 
15 minutes prior to the recording and should be motionless during the recording. 
The Investigator (if certified) or a certified designee will evaluate whether the ECG is normal 
or abnormal and whether it is clinically significant, if abnormal.  Clinically relevant 
abnormalities, including the baseline ECG, should be recorded on the AE eCRF page. 
All ECG records collected during the study should have a printed copy kept as a source 
document at the study site (if the ECG record is printed on thermal paper, a photocopy 
should be made). 
7.4.7.5 
Evaluation of Chest X-ray 
A chest X-ray (both lateral and posteroanterior) not older than 8 weeks evaluated and 
interpreted by a certified specialist at Screening as part of Screening procedures to confirm 
the absence of TB or other pulmonary infection will be acceptable; if no such chest X-ray is 
available, this should be performed.  The Investigator should consult with a certified TB 
specialist or pulmonologist who is familiar with diagnosing and treating TB (as acceptable 
per local practice), if required.  Films or images available at Screening and collected during 
the study should be evaluated by a certified specialist and kept as source documents. 
7.4.8 
Safety Monitoring 
R-Pharm’s designee will monitor safety data throughout the course of the study.  The 
designee will, as is appropriate, consult with functionally independent subject safety, 
therapeutic area physician, or clinical scientist, and review trends, laboratory data, and AEs 
at periodic intervals. 

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In the event that ongoing safety monitoring uncovers an issue that needs to be addressed by 
unblinding at the treatment group level, only members of the DSMB (an external advisory 
group for this study formed to protect the integrity of data) can conduct additional analyses 
of the safety data.  See also Section 7.4.4 for details regarding the DSMB. 
7.4.9 
Tuberculosis Risk Questionnaires 
The questionnaires “Tuberculosis Risk Questionnaire for Screening Visit” and “Tuberculosis 
Risk Questionnaire for Post-Screening Visits” (see Appendix 5 [Section 13.5]) should be 
used as source documents.  The questionnaire “Tuberculosis Risk Questionnaire for 
Screening Visit” will be completed at Visit 1 (Screening), and the questionnaire 
“Tuberculosis Risk Questionnaire for Post-Screening Visits” will be completed at Visits 7, 
10, 15, and SFU-2 as noted in Table 1. 
At the Screening Visit, if question No. 1 (Does the subject have a currently active TB disease 
or a history of active TB disease) or question No. 2 (Has the subject been in close contact 
[i.e., sharing the same household or other enclosed environment, such as a social gathering 
place, workplace, or facility, for extended periods during the day] with an individual with 
active TB within the past 1.5 years) of the questionnaire “Tuberculosis Risk Questionnaire 
for Screening Visit” is answered “Yes”, the subject is not allowed to enter the study  (see 
exclusion criterion No. 19, Section 5.3.2).  A “Yes” response to any of the other questions 
within the questionnaire at Screening should trigger further careful assessment to determine 
the subject’s risk of TB disease. 
At all post-Screening visits, a “Yes” response on the “Tuberculosis Risk Questionnaire for 
Post-Screening Visits” should be treated as follows: 
• 
Question 1:  If a subject answers “Yes” study treatment should be discontinued if active 
TB is confirmed (see Section 6.11). 
• 
Questions 2 through 6:  If a subject answers “Yes” to any question, they should be 
assessed (TB risk questionnaire and physical examination) 12 weeks from the time of 
exposure to determine if the subject developed TB.  The Investigator should consult with 
a certified TB specialist or pulmonologist, if needed. 
• 
Questions 7 through 12:  If a subject answers “Yes” to any question, this should trigger a 
careful assessment to determine if the subject developed TB (see Section 7.4.10). 
This risk questionnaires are not to be used to exclude TB disease or confirm diagnosis. 

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7.4.10 
Management of Tuberculosis 
Subjects who develop evidence of latent or active TB once enrolled in the study (and 
receiving study treatment) must immediately discontinue further administration of study 
treatment, and the subject should be examined by a certified TB specialist or pulmonologist 
who is familiar with diagnosing and treating TB (as acceptable per local practice). 
If active TB is confirmed, the subject must permanently discontinue study treatment (see 
Section 6.11).  Confirmed active TB is an SAE that must be recorded on the relevant pages 
of the eCRF and provided to the Sponsor in accordance with SAE reporting requirements.  
Details regarding follow-up of SAEs are provided in Section 7.4.5.5. 
If latent TB is confirmed, the subject may resume the administration of study treatment if 
active TB is ruled out by a certified TB specialist or pulmonologist who is familiar with 
diagnosing and treating TB (as acceptable per local practice), the subject starts prophylactic 
treatment of LTBI according to country-specific/CDC guidelines (see Appendix 7 
[Section 13.7]), and the subject and agrees to complete the entire course of recommended 
therapy.  Study treatment should not be administered until active TB is ruled out and the 
subject starts prophylactic LTBI therapy.  Confirmed latent TB should be recorded as an 
AESI on the relevant pages of the eCRF.  Details regarding follow-up of AEs are provided in 
Section 7.4.5.4. 
7.5 
Appropriateness of Measurements 
All assessments made in this study are standard, widely used, and generally recognized as 
reliable, accurate, and relevant. 

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8. QUALITY CONTROL AND QUALITY ASSURANCE 
According to the Guidelines of Good Clinical Practice (GCP) (CPMP/International Council 
for Harmonisation [ICH]/135/95), R-Pharm and R-Pharm’s designee are responsible for 
implementing and maintaining quality assurance and quality control systems with written 
standard operating procedures (SOPs). 
Quality control will be applied to each stage of data handling. 
The following steps will be taken to ensure the accuracy, consistency, completeness, and 
reliability of the data: 
• 
Investigator meetings 
• 
Central laboratories for clinical laboratory parameters 
• 
Study site initiation visit 
• 
Early study site visits after enrollment 
• 
Routine study site monitoring 
• 
Ongoing study site communication and training 
• 
Data management quality control checks 
• 
Continuous data acquisition and cleaning 
• 
Internal review of data 
• 
Quality control check of the final clinical study report 
In addition, R-Pharm’s (or designee’s) Clinical Quality Assurance Department may conduct 
periodic audits of the study processes, including study site, study site visits, central 
laboratories, vendors, clinical database, and final clinical study report.  When audits are 
conducted, access must be authorized for all study-related documents including medical 
history and concomitant medication documentation to R-Pharm’s designee and regulatory 
authorities. 
8.1 
Monitoring 
R-Pharm’s designee will perform all monitoring functions within this clinical study.  The 
designee’s monitors will work in accordance with established SOPs and have the same rights 
and responsibilities as monitors from R-Pharm.  Monitors will establish and maintain regular 

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contact between the Investigator and R-Pharm.  There will be both blinded and unblinded 
monitors, as appropriate. 
Monitors will evaluate the competence of each study site, informing R-Pharm about any 
problems relating to facilities, technical equipment, or medical staff.  During the study, 
monitors will check that written informed consent has been obtained from all subjects 
correctly and that data are recorded correctly and completely.  Monitors are also entitled to 
compare entries in eCRFs with corresponding source data and to inform the Investigator of 
any errors or omissions.  Monitors will also control adherence to the protocol at the study 
site.  They will arrange for the supply of study treatment and ensure appropriate storage 
conditions are maintained. 
Monitoring visits will be conducted according to all applicable regulatory requirements and 
standards.  Regular monitoring visits will be made to each study site while subjects are 
enrolled in the study.  The monitor will make written reports to R-Pharm on each occasion 
contact with the Investigator is made, regardless of whether it is by phone or in person. 
During monitoring visits, entries in the eCRFs will be compared with the original source 
documents (source data verification).  Please refer to the Monitoring Plan for further details. 
Data Management/Coding 
Data generated within this clinical study will be handled according to the relevant SOPs of 
the Data Management and Biostatistics departments of R-Pharm’s designee. 
An EDC system will be used for this study, meaning that all eCRF data will be entered in 
electronic forms at the study site.  Data collection will be completed by authorized study site 
staff designated by the Investigator.  Appropriate training and security measures will be 
completed with the Investigator and all authorized study site staff prior to the study being 
initiated and any data being entered into the system for any study subjects. 
All data must be entered in English.  The eCRFs should always reflect the latest observations 
on the subjects participating in the study.  Therefore, the eCRFs are to be completed as soon 
as possible during or after the subject’s visit.  To avoid interobserver variability, every effort 
should be made to ensure that the same individual who made the initial baseline 
determinations completes all efficacy and safety evaluations.  The Investigator must verify 
that all data entries in the eCRFs are accurate and correct.  If some assessments are not done, 
or if certain information is not available or not applicable or unknown, the Investigator 
should indicate this in the eCRF.  The Investigator will be required to electronically sign off 
on the clinical data. 

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The monitor will review the eCRFs and evaluate them for completeness and consistency.  
The eCRF will be compared with the source documents to ensure that there are no 
discrepancies between critical data.  All entries, corrections, and alterations are to be made by 
the responsible Investigator or his/her designee.  The monitor cannot enter data in the eCRFs.  
Once clinical data of the eCRF have been submitted to the central server, corrections to the 
data fields will be audit trailed, meaning that the reason for change, the name of the person 
who performed the change, together with time and date will be logged.  Roles and rights of 
the study site staff responsible for entering the clinical data into the eCRF will be determined 
in advance.  If additional corrections are needed, the responsible monitor or Data Manager 
will raise a query in the EDC application.  The appropriate study site staff will answer 
queries sent to the Investigator.  This will be audit trailed by the EDC application meaning 
that the name of study site staff, time, and date stamp are captured. 
The eCRF is essentially considered a data entry form and should not constitute the original 
(or source) medical records unless otherwise specified.  Source documents are all documents 
used by the Investigator or hospital that relate to the subject’s medical history, that verify the 
existence of the subject, the inclusion and exclusion criteria, and all records covering the 
subject’s participation in the study.  They include laboratory notes, ECG results, memoranda, 
pharmacy dispensing records, subject files, etc. 
The Investigator is responsible for maintaining source documents.  These will be made 
available for inspection by the monitor at each monitoring visit.  The Investigator must 
submit a completed eCRF for each subject who receives study treatment, regardless of 
duration.  All supportive documentation submitted with the eCRF, such as laboratory or 
hospital records, should be clearly identified with the study and subject number.  Any 
personal information, including subject name, should be removed or rendered illegible to 
preserve individual confidentiality. 
Electronic case report form records will be automatically appended with the identification of 
the creator, by means of their unique User ID.  Specified records will be electronically signed 
by the Investigator to document his/her review of the data and acknowledgement that the data 
are accurate.  This will be facilitated by means of the Investigator’s unique User ID and 
password; date and time stamps will be added automatically at the time of electronic 
signature.  If an entry on an eCRF requires change, the correction should be made in 
accordance with the relevant software procedures.  All changes will be fully recorded in a 
protected audit trail, and a reason for the change will be required. 
Adverse events and medical history will be coded using the most recent version of the 
Medical Dictionary for Regulatory Activities (MedDRA).  Concomitant medications will be 
coded using the World Health Organization Drug Dictionary Enhanced (WHO DDE). 

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8.2 
Quality Assurance Audit 
Study sites, the study database, and study documentation may be subject to a Quality 
Assurance audit during the course of the study by R-Pharm or R-Pharm’s designee on behalf 
of R-Pharm.  In addition, inspections may be conducted by regulatory bodies at their 
discretion. 

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9. STATISTICS 
9.1 
Determination of Sample Size 
Given that the study would be considered successful if at least 1 of the 2 OKZ dose regimens 
is shown to be efficacious and that a priori both OKZ dose regimens are assumed to be 
efficacious, disjunctive power (i.e., a probability of detecting a significant treatment effect 
for at least 1 OKZ treatment regimen) will be used as a criterion for the estimation of the 
sample size. 
Sample size requirements are calculated to provide sufficient disjunctive power to evaluate 
the primary endpoint (superiority of OKZ relative to placebo with respect to the ACR20 
response rate at Week 12) as well as 3 secondary endpoints (noninferiority of OKZ relative 
to adalimumab with respect to the ACR20 response rate at Week 12, superiority of OKZ 
relative to placebo with respect to the proportion of subjects with DAS28 (CRP) <3.2 at 
Week 12, and noninferiority of OKZ relative to adalimumab with respect to the proportion of 
subjects with DAS28 (CRP) <3.2 at Week 12). 
Sample size was estimated taking into account a multiplicity control procedure and the 
resulting α adjustment that will be used in this study to control an overall Type I error rate in 
the strong sense at a 1-sided α = 0.025 across the primary and secondary endpoints.  More 
specifically, the α-control strategy will be based on using the Bonferroni adjustment for the 
tests related to each of the 2 OKZ dose regimens (i.e., using the 1-sided α = 0.0125 for each 
dose).  A gate-keeping strategy will be used for tests associated with the primary and 
secondary endpoints for each OKZ dose regimen independently, with a fixed order of 
hypothesis tests for the primary and secondary endpoints within each OKZ dose regimen. 
Sample size was estimated based on simulation that implemented the above α adjustment and 
gate-keeping procedure including the primary endpoint of ACR20 response rate at Week 12 
(superiority of OKZ to placebo) and the 3 secondary endpoints detailed above. 
Based on this simulation, an adequate sample size was selected to provide sufficient 
disjunctive power for the primary endpoint as well as sufficient disjunctive power for testing 
noninferiority of OKZ relative to adalimumab with respect to the ACR20 response rate at 
Week 12, superiority of OKZ relative to placebo with respect to the proportion of subjects 
with DAS28 (CRP) <3.2 at Week 12, and noninferiority of OKZ relative to adalimumab with 
respect to the proportion of subjects with DAS28 (CRP) <3.2 at Week 12.  For each 
secondary endpoint, the disjunctive power represents a probability of establishing a 
significant treatment effect for 1 or 2 OKZ dose regimens for the primary endpoint and a 
significant treatment effect for 1 or 2 OKZ dose regimens for a given secondary endpoint, 

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conditional on the fact that each dose regimen tested for the secondary endpoint must have 
null hypothesis previously rejected for all endpoints (primary and secondary) that precede 
this endpoint in a fixed order of testing as per the gate-keeping procedure. 
Treatment effect assumptions used in the simulation-based sample size calculations involving 
the primary and the 2 selected secondary endpoints are as follows. 
The ACR20 response rate at Week 12 for the placebo group is estimated to be 25% in this 
study population (Genovese et al, 2008; Keystone et al, 2004; Weinblatt et al, 2003).  The 
OKZ ACR20 response rates for the 64 mg q4w and q2w treatment groups at Week 12 are 
expected to be at least 50% and 55%, respectively, resulting in an expected difference in 
ACR20 response rates of 25 and 30 percentage points between the respective OKZ treatment 
groups and placebo. 
The ACR20 response rate for adalimumab is expected to be at least 52.5% at Week 12.  A 
noninferiority margin of 12% is used for the comparison between OKZ and adalimumab with 
respect to this endpoint. 
The DAS28 low disease activity (based on DAS28 [CRP] <3.2) response rate at Week 12 is 
estimated to be 10% in the placebo group (van der Heijde et al, 2006) and 22% and 30% in 
the 64 mg q4w and q2w OKZ groups, respectively, resulting in an expected difference of 
12 and 20 percentage points between respective OKZ groups and placebo. 
The DAS28 low disease activity response rate for adalimumab is expected to be at least 27% 
at Week 12.  A noninferiority margin of 7.5% is used for the comparison between OKZ and 
adalimumab with respect to this endpoint. 
The references cited above for ACR20 and DAS28 response rates are assumed to reflect 
approximately 10% of subjects discontinuing randomized treatment prior to Week 12.  In this 
study, subjects who discontinue prior to Week 12 will be classified as nonresponders for the 
primary endpoint of ACR20 at Week 12 as well as for the secondary endpoints of 
noninferiority of OKZ relative to adalimumab with respect to the ACR20 response rate at 
Week 12 as well as superiority of OKZ relative to placebo and noninferiority of OKZ relative 
to adalimumab with respect to the proportion of subjects with DAS28 (CRP) <3.2 at 
Week 12.  Details regarding subjects who discontinue treatment and/or study participation 
prematurely can be found in Section 9.4.9. 
The primary endpoint as well as the secondary endpoints that are binary in nature will be 
analyzed using a 2×2 chi-squared test for equality of proportions for each OKZ treatment 
group compared with placebo.  Noninferiority testing for each OKZ dosing regimen versus 
adalimumab with respect to ACR20 rate and DAS28 (CRP) <3.2 rate at Week 12 will be 

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carried out based on a 97.5% 2-sided confidence interval for difference between proportions 
(OKZ versus adalimumab) and comparing the lower confidence limit with the noninferiority 
margin of -12% for the ACR20 rate and the noninferiority margin of -7.5% for the DAS28 
low disease activity rate.. 
Based on the treatment effect assumptions and the methodology for estimating sample size 
via simulation to ensure sufficient disjunctive power as described above, a sample size of 
1575 subjects randomized in a 2:2:2:1 ratio (450, 450, 450, and 225 subjects per group, 
respectively) will yield 100% disjunctive power for testing the primary hypothesis 
(superiority of OKZ to placebo with respect to ACR20 at Week 12), 92% disjunctive power 
for testing the secondary hypothesis of noninferiority of OKZ to adalimumab with respect to 
ACR20 rate at Week 12, 92% disjunctive power for the evaluation of the secondary endpoint 
of superiority of OKZ to placebo with respect to DAS28 (CRP) <3.2 at Week 12, and 88% 
disjunctive power for testing the secondary hypothesis of noninferiority of OKZ to 
adalimumab with respect to DAS28 (CRP) <3.2 at Week 12. 
9.2 
Data to be Analyzed 
Data handling will be the responsibility of R-Pharm’s designee.  The data will be inspected 
for inconsistencies by performing validation checks. 
9.3 
Analysis Populations 
• 
Intent-to-treat (ITT) population:  The ITT population will include all randomized 
subjects.  Subjects will be analyzed according to the treatment group to which they were 
randomized.  The ITT population will be the primary analysis population. 
• 
Modified Intent-to-treat (mITT) population:  The mITT population will include all 
randomized subjects who receive at least 1 dose of study treatment.  Subjects will be 
analyzed according to the treatment group to which they were randomized.  The 
mITT population, if sufficiently different from the ITT population (>5% of ITT subjects 
excluded from the mITT population across all treatment groups), will be used for 
supportive analyses of the primary and secondary efficacy endpoints. 
• 
Per Protocol (PP) population:  The PP population will include all ITT subjects who do 
not have any major protocol violations.  Subjects will be analyzed according to the 
treatment group to which they were randomized.  Major protocol violations and the 
inclusion of subjects in the PP population will be finalized prior to study unblinding.  The 
PP population will be used for supportive analyses of the primary and secondary efficacy 
endpoints. 

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• 
Safety population:  The Safety population will include all subjects who receive at least 
1 dose of study treatment.  Subjects in the Safety population will be analyzed according 
to the treatment they actually received.  In addition to the primary safety analysis the 
incidence of AEs will be analyzed separately for subjects administered an additional 
DMARD as rescue medication during the Treatment Period who did not receive rescue 
medication. 
• 
Pharmacokinetic population:  The PK population will include all subjects who receive at 
least 1 dose of OKZ and have at least 1 evaluable postdose OKZ concentration without 
important protocol deviations or events affecting the PK results. 
9.4 
Statistical Methods 
All data collected in the clinical database will be presented in subject data listings. 
Unless otherwise specified, baseline value for each parameter will be defined as the last 
available assessment prior to the first dose of the study treatment. 
No adjustment for covariates will be included in the primary analysis of the primary endpoint 
or the analysis of the secondary and other endpoints that are binary in nature.  Analyses of 
the continuous efficacy endpoints will be adjusted for baseline values of the corresponding 
parameters. 
Data collected after the initiation of rescue medication (as described in Section 6.13.3) will 
be used in all main analyses. 
The primary endpoint as well as secondary and other endpoints that are binary in nature will 
be analyzed using a 2×2 chi-squared test for equality of proportions for superiority testing of 
each OKZ treatment group compared with placebo.  Noninferiority testing for each OKZ 
dosing regimen versus adalimumab with respect to ACR20 rate and DAS28 (CRP) 
<3.2 response rate at Week 12 will be carried out based on a 97.5% 2-sided confidence 
interval for difference between proportions (OKZ versus adalimumab) using the Newcombe 
hybrid score method and comparing the lower confidence limit with the noninferiority 
margins of -12% and -7.5%, respectively, for the ACR20 and DAS28 (CRP) <3.2 endpoints. 
Endpoints that are continuous in nature will be analyzed using an analysis of covariance 
(ANCOVA) model adjusted for the baseline value of the corresponding parameter. 
Continuous efficacy endpoints will be summarized using descriptive statistics such as 
number of available values (n), mean, median, minimum, maximum, and standard deviation 
for the 4 treatment groups, respectively.  Categorical efficacy endpoints will be summarized 
by the number and percentage of subjects in each category. 

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Efficacy analyses will be conducted using the ITT population.  Supportive analyses of the 
primary and secondary efficacy endpoints will be conducted using the mITT (if sufficiently 
different from the ITT population) and PP populations.  All comparisons for efficacy 
assessments will be carried out based on treatment group to which the subjects were 
originally randomized. 
Safety analyses will be done according to the treatment subjects actually received. 
Details for the statistical analysis will be specified in the Statistical Analysis Plan (SAP) to 
be written and finalized prior to the unblinding of the database.  The statistical analysis will 
be performed by R-Pharm’s designee. 
All statistical analyses will be conducted using SAS® version 9.2 or higher for Windows. 
9.4.1 
Disposition of Study Subjects 
Disposition of study subjects will be summarized by treatment group as the number and 
percentage of subjects screened (signed ICF), randomized, included in each analysis 
population as defined in Section 9.3, completing the study treatment, discontinuing from the 
study treatment overall and by reason for discontinuation, completing the study, 
discontinuing from the study overall and by reason for discontinuation, and enrolling into the 
OLE study.  The number and percentage of subjects discontinuing study treatment by visit in 
each treatment group will also be summarized.  A Kaplan-Meier plot of time to treatment 
discontinuation in each treatment group will be presented. 
Determination of major protocol deviations and inclusion of subjects in the analysis 
populations will be finalized and approved by R-Pharm prior to the study unblinding. 
9.4.2 
Demography and Baseline Characteristics 
Demographic information, baseline characteristics, and prior and concomitant medications 
will be presented using descriptive statistics or frequency counts, as appropriate, for 
continuous and categorical variables. 
9.4.3 
Medical History 
A complete medical history will include evaluation (past or present) of the following:  
general, head and neck, eyes, ears, nose, throat, chest/respiratory, CV, GI/liver, 
gynecological/urogenital, musculoskeletal/extremities, skin, neurological/psychiatric, 
endocrine/metabolic, hematologic/lymphatic, allergies/drug sensitivities, past surgeries, 
substance abuse, or any other diseases or disorders.  Medical history terms will coded using 
the most recent version of the MedDRA, listed by subject, and summarized by SOC and PT 
in each treatment group. 

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9.4.4 
Prior and Concomitant Medications 
Prior and concomitant medications will be separately summarized as the number and 
percentage of subjects by World Health Organization (WHO) drug class, preferred name, and 
treatment.  Medications will be coded using the WHO Drug dictionary, Anatomic 
Therapeutic Class (ATC) level 2, and preferred drug name. 
Prior medications will be distinguished from concomitant medications by a stop date before 
the first dose of the study treatment.  Medications that stopped on the same date as the first 
dose of the study treatment will be considered a prior medication.  Any medication that a 
subject started before the first dose of double-blind study treatment and continued to take 
during the study, and any medication that the subject began taking after the first dose of 
study treatment will be classified as concomitant. 
Medications administered as rescue medication (as described in Section 6.13.3) will also be 
summarized as the number and percentage of subjects by WHO drug class, preferred name, 
and treatment. 
9.4.5 
Exposure and Compliance 
Exposure to study treatment and compliance will be summarized descriptively by treatment 
group for the Safety population. 
Exposure to double-blind study treatment will be calculated as the number of doses received 
in the course of the study.  Duration of exposure will be defined as the total number of days a 
subject was exposed to study treatment, calculated as: 
Date of last dose – Date of first dose + 1 day 
Overall compliance (expressed as a percentage) will be calculated as: 
(Exposure to double-blind study treatment/number of doses subject was expected to 
receive)×100 
Duration of exposure and compliance will be calculated based on all planned doses (placebo 
and active treatment), as appropriate for each treatment group.  For the OKZ 64 mg q4w 
dosing regimen, both OKZ and placebo doses will be used in the calculations. 
9.4.6 
Multiple Hypothesis Testing 
Each of the OKZ treatment groups (64 mg q2w and 64 mg q4w) will be compared with 
placebo for each of the primary, secondary, and other endpoints.  If adalimumab is shown to 
be superior to placebo, then each of the OKZ treatment groups will also be compared with 

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adalimumab with respect to the ACR20 response rate and the DAS28 (CRP) <3.2 response 
rate at Week 12. 
The overall Type I error rate will be controlled for testing hypotheses of the primary and 
secondary endpoints at the overall 1-sided α = 0.025. 
The following hypothesis tests will be included in the multiplicity control procedure:  
superiority of each OKZ group versus placebo for the primary endpoint (ACR20 response 
rate at Week 12), noninferiority of each OKZ group versus adalimumab for the secondary 
endpoint (ACR20 response rate at Week 12), superiority of each OKZ group versus placebo 
for the secondary endpoint DAS28 (CRP) <3.2 response rate at Week 12, noninferiority of 
each OKZ group versus adalimumab for the secondary endpoint DAS28 (CRP) 
<3.2 response rate at Week 12, and superiority of each OKZ group versus placebo for the 
remaining 3 secondary endpoints (HAQ-DI improvement at Week 12, ACR50 at Week 24, 
and CDAI ≤2.8 at Week 24).  The test for assay sensitivity (superiority of adalimumab versus 
placebo with respect to ACR20 and DAS28 (CRP) <3.2 response rate at Week 12) is not 
included in the multiplicity control strategy due to the ancillary nature of this test and will be 
carried out using a 1-sided α = 0.025 concurrently with the test for noninferiority of OKZ 
versus adalimumab. 
The α-control strategy will be based on using the Bonferroni adjustment for the tests related 
to each of the 2 OKZ dose regimens versus placebo (i.e., using the 1-sided α = 0.0125 for 
each dose).  A gate-keeping strategy will be used for tests associated with the primary and 
secondary endpoints for each OKZ dose regimen independently with the same order of 
testing as the secondary endpoints defined above.  In other words, each OKZ dose regimen 
will be tested at 1-sided α = 0.0125 for a given endpoint if null hypotheses are rejected at 
1-sided α = 0.0125 for this dosing regimen for all previous endpoints based on the 
established order.  Conversely, the testing will stop for a given OKZ dose regimen at the 
endpoint for which the null hypothesis is accepted at 1-sided α = 0.0125. 
The above multiplicity control procedure will be applied to the primary analysis of the 
primary and secondary efficacy endpoints based on the ITT population, and will not be 
applied to the sensitivity analyses of these endpoints. 
9.4.7 
Primary Efficacy Analysis 
The primary efficacy endpoint is the percentage of subjects achieving an ACR20 response 
and remaining on randomized treatment and in the study at Week 12, analyzed using the ITT 
population as the primary efficacy analysis.  Supportive analyses of the primary endpoint will 
also be done using the mITT, if sufficiently different from the ITT population, and 
PP populations. 

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The ACR20 response at Week 12 for each of the OKZ 64 mg treatment groups (q2w and 
q4w) will be compared with placebo using a 2×2 chi-squared test for equality of proportions. 
The overall Type I error rate will be controlled using a procedure in the strong sense at a 
1-sided α = 0.025 for testing multiple hypotheses for the 2 OKZ treatment groups versus 
placebo across the primary and secondary endpoints as described in Section 9.4.6. 
As a supportive analysis, the difference between proportions of responders in each of the 
OKZ treatment groups and placebo (relative risk) will be estimated together with the 
corresponding 97.5% 2-sided confidence interval for difference of proportions using the 
Newcombe hybrid score method. 
Missing data and data collected after premature study treatment discontinuation will be 
handled as described in Section 9.4.9.1. 
9.4.8 
Analysis of Secondary and Other Efficacy Endpoints 
Analysis of secondary and other efficacy endpoints defined in Sections 4.2 and 4.3 will be 
based on the ITT population.  Supportive analyses of the secondary endpoints will also be 
done using the mITT, if sufficiently different from the ITT population, and the PP 
populations. 
Secondary and other efficacy endpoints that are binary in nature will be analyzed using the 
same methodology as the primary endpoint. 
Secondary and other efficacy endpoints that are continuous in nature will be analyzed using 
an ANCOVA model adjusted for the baseline value of the corresponding parameter. 
The multiplicity control procedure to be applied for hypothesis testing related to the 
secondary endpoints is described in Section 9.4.6. 
Efficacy of adalimumab with respect to the ACR20 response rate was established in 2 key 
pivotal clinical studies (Keystone et al, 2004; Weinblatt et al, 2003).  The interpretation of 
the analysis results for the secondary endpoint of noninferiority of OKZ versus adalimumab 
with respect to ACR20 rate at Week 12 will be done in light of the existence of assay 
sensitivity in this study.  The criterion for assay sensitivity is defined as rejection of the null 
hypothesis of equal or inferior efficacy of adalimumab compared with placebo with respect 
to ACR20 response rate at Week 12 using 1-sided α=0.025 significance level. 
In a meta-analysis of 2 key pivotal clinical studies for registration (Keystone et al, 2004; 
Weinblatt et al, 2003), the difference between the ACR20 response rate at Week 12 for 
adalimumab+MTX (N=280) and placebo+MTX (N=262) was equal to 35% (95% confidence 
interval:  27.3% to 42.6%).  Therefore, 27.3% is the absolute largest noninferiority margin 

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that could be justified.  Using an assumption of 55% ACR20 response rate at Week 12 for 
adalimumab and a more conservative minimum lower bound of 43% for OKZ is considered 
to be clinically meaningful.  As a result, we use a noninferiority margin of 12% for the 
ACR20 response rate at Week 12. 
In a meta-analysis of 2 clinical studies of adalimumab (Keystone et al, 2013; Taylor et al, 
2015), the difference between the DAS28 (CRP) <3.2 response rate at Week 12 for 
adalimumab+MTX (N=537) and placebo+MTX (N=688) was equal to 20% (95% confidence 
interval:  15.3% to 24.6%).  Therefore, 15.3% is the absolute largest noninferiority margin 
that could be justified.  Using an assumption of 27% for DAS28 (CRP) <3.2 response rate at 
Week 12 for adalimumab and a more conservative minimum lower bound of 19.5% for OKZ 
is considered to be clinically meaningful.  As a result, we use a noninferiority margin of 
7.5% for DAS28 (CRP) <3.2 response rate at Week 12. 
Noninferiority testing for each OKZ dosing regimen versus adalimumab with respect to 
ACR20 and DAS28 (CRP) <3.2 rates at Week 12 will be carried out based on a 97.5% 
2-sided confidence interval for differences between proportions (OKZ versus adalimumab) 
using the Newcombe hybrid score method and comparing the lower confidence limit to the 
noninferiority margin of -12% and -7.5% for the ACR20 and DAS28 (CRP) <3.2 endpoints, 
respectively.  The assay sensitivity test comparing adalimumab to placebo with regards to 
ACR20 and DAS28 (CRP) <3.2 rates at Week 12 will also be done using a 2×2 chi-squared 
test for equality of proportions. 
Missing data and data collected after premature study treatment discontinuation will be 
handled as described in Section 9.4.9. 
9.4.9 
Handling of Missing Data and Data Following Premature Discontinuation of 
Randomized Treatment 
9.4.9.1 
Primary Analysis of Primary, Secondary, and Other Efficacy Endpoints 
Data Following Premature Discontinuation of Randomized Treatment  
In this study, subjects who discontinue randomized treatment prematurely will be required to 
remain on study and be evaluated as per the planned Schedule of Events.  For the main 
analysis of all binary endpoints, inability to remain on randomized treatment through the time 
point of interest is defined as treatment failure (nonresponse).  For the main analysis of 
continuous endpoints, subjects who discontinue randomized treatment prematurely but 
remain on study through the time point of interest will be included using all collected 
measurements, including those from assessments after treatment discontinuation. 

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Missing Data Resulting from Study Withdrawal  
The main method for handling missing data resulting from premature withdrawal of a subject 
from the study will be based on a clinical approach where no treatment benefit will be 
attributed to study treatment at any time point after study withdrawal, if the subject was 
unable to complete the study for the planned duration. 
Therefore, for all binary endpoints, all subjects who discontinue prematurely, regardless of 
reason, will be considered as nonresponders with respect to the definition of the 
corresponding endpoint. 
Similarly, for all endpoints that are continuous in nature, a return to baseline values will be 
assumed and will be implemented using a multiple imputation (MI) methodology allowing to 
account for the uncertainly of missing data according to the methodology of Rubin (Rubin, 
1987).  Imputed values will be sampled from a posterior Bayesian distribution of the baseline 
values of each continuous parameter (for all treatment groups combined) using a regression 
imputation model with age, sex, time from RA diagnosis to first study dose, and duration of 
prior MTX treatment as predictor variables.  Multiply imputed data will be analyzed with an 
ANCOVA model and the results will be combined using the Rubin’s rule (Rubin, 1987).  
Additional details will be provided in the SAP. 
Intermediate Missing Data 
Missing data may also result from missed intermediate visits for subjects who completed the 
study.  For all binary endpoints, missing intermediate responder status will be imputed from 
the surrounding visits.  If the status at visits both before and after the missed visit is classified 
as responder, the subject will be considered a responder at the missed visit.  Otherwise, the 
subject will be considered a nonresponder.  If an assessment for a given binary endpoint at 
the last visit is missing for a completing subject, data from the 2 previous visits will be used 
with the same logic for determining the response status.  For the ACR20/50/70 endpoints, if 
only some components of the response criteria are missing but the available components 
allow classifying the subject as a responder, the responder category will be used.  Otherwise, 
the method based on surrounding visits as described above will be applied.  Similarly, for all 
continuous endpoints, an average of values from the surrounding visits will be imputed for 
the missing visit. 
9.4.9.2 
Sensitivity Analyses of Efficacy Endpoints 
All sensitivity analyses will be performed based on the ITT population.  Multiplicity 
adjustment procedure will not be applied for the sensitivity analyses.  Other sensitivity 
analyses in addition to those described below may be performed and will be specified in the 
SAP. 

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Sensitivity to Data Following Premature Discontinuation of Randomized Treatment  
Supportive analyses will be performed to assess the effect of Standard of Care treatment that 
the subjects may receive after premature discontinuation of randomized treatment while the 
subjects remain on study and continue to be evaluated. 
In this supportive analysis, all binary efficacy endpoints will be defined regardless of 
adherence to randomized treatment through the time point of interest.  Definitions will be 
based on the criteria of achieving the corresponding clinical response (e.g., ACR20) using all 
data collected at the time point of interest, i.e., including data collected after premature 
discontinuation of randomized treatment.  Subjects who discontinue from the study overall 
will be considered nonresponders at time points after study discontinuation. 
For the supportive analysis of continuous endpoints, data collected after premature 
discontinuation of randomized treatment will be excluded and replaced with values imputed 
based on the return to baseline approach implemented with MI as described in 
Section 9.4.9.1. 
These supportive analyses will be performed for all efficacy endpoints. 
Sensitivity to Missing Data Assumptions   
The method of handling missing data that considers discontinued subjects as nonresponders 
or imputes continuous data with baseline values may be regarded as not conservative if the 
proportion of subjects dropping out is greater in the placebo group than in the OKZ or 
adalimumab treatment groups.  Similarly, this method may be considered not conservative 
for testing noninferiority of OKZ to adalimumab if the proportion of subjects discontinuing is 
greater in the adalimumab group than in the OKZ treatment groups.  Moreover, considering 
all discontinued subjects as nonresponders may bias the analysis towards similarity between 
adalimumab and OKZ in the context of noninferiority testing, even if the proportions of 
discontinued subjects are similar in the compared treatment groups.  To address the 
possibility of these scenarios, 2 alternative strategies will be used:  1 to stress-test the 
superiority analyses and 1 to stress test the noninferiority analysis. 
Sensitivity Analysis for Testing Superiority to Placebo 
To stress-test the analyses intended to demonstrate superiority of OKZ to placebo, analysis of 
primary and secondary efficacy endpoints will be repeated using all collected data (including 
data after premature study treatment discontinuation) but with missing data after study 
withdrawal imputed under the following assumptions.  Missing poststudy withdrawal data for 
subjects discontinuing from the placebo group will be imputed under the assumption of the 
missing-at-random (MAR) mechanism, where these discontinued subjects are assumed to 

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have postwithdrawal values in line with similar placebo subjects who remained in the study, 
taking into account their values observed prior to discontinuation.  For subjects discontinuing 
from the OKZ treatment groups, missing postwithdrawal data will be imputed from the same 
MAR-based imputation model estimated from the placebo subjects, assuming that after 
discontinuation, the OKZ subjects will drift towards the mean response of the placebo group.  
This approach is likely to result in more favorable imputations for the placebo group 
compared with the nonresponder/return to baseline assumption, while for the OKZ treatment 
groups, it will not assume a treatment effect beyond the study effect and the effect of the 
background MTX therapy.  This approach will be more conservative compared with the 
primary analysis if the proportion of subjects discontinuing from the study is greater in the 
placebo group than in the OKZ treatment groups. 
This approach will be implemented with MI using 2 steps.  First, intermediate missing data 
of each continuous parameter will be multiply imputed under the MAR assumption within 
each treatment group using a multivariate normal imputation model and the Markov chain 
Monte Carlo (MCMC) method.  Second, intermediate missing data imputed in this way will 
then be used together with observed data for the estimation of the MAR-based model from 
the placebo group, which will be done using sequential regression imputation models applied 
to each continuous parameter (Ratitch et al, 2013).  The MAR-based placebo imputation 
model for each parameter will be estimated based on data from placebo subjects and will 
include baseline value of the corresponding parameter and all postbaseline values prior to 
study discontinuation as explanatory variables.  Poststudy discontinuation missing values in 
all 4 treatment groups will then be imputed from this single placebo imputation model. 
Binary endpoints will then be computed from the multiply imputed data regardless of 
adherence to randomized treatment through the time point of interest based on the criteria of 
achieving the corresponding clinical response.  Multiply imputed datasets will be analyzed 
using the same methods as in the primary analysis, followed by combining the results using 
Rubin’s rule (Rubin, 1987). 
Additionally, for the primary and secondary endpoints that are binary in nature, a tipping 
point analysis will be performed.  First, binary response status at the time point of interest 
will be computed using all collected data regardless of adherence to randomized treatment 
through the time point of interest based on the criteria of achieving the corresponding clinical 
response.  For subjects who withdraw from the study overall, all possible combinations of the 
number of responders and nonresponders in each treatment group will be considered.  The 
results of analysis for all possible combinations will be summarized graphically, depicting a 
boundary between combinations that result in a statistically significant treatment effect 
versus not statistically significant.  Clinical plausibility of the combinations on the boundary 

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will be discussed in the clinical study report to evaluate the robustness of study conclusions 
to missing data. 
Similar sensitivity analyses as described above will also be performed for the assay 
sensitivity testing to demonstrate superiority of adalimumab to placebo. 
For the secondary endpoint that measures physical ability based on the HAQ-DI 
improvement at Week 12, a continuous responder analysis will also be performed.  Subjects 
will be considered responders at a specified improvement threshold if they experience a 
percentage improvement in the HAQ-DI score from baseline to Week 12 that is greater or 
equal to the specified threshold and if they remain on the randomized treatment and in the 
study through Week 12.  This analysis will be performed for a range of improvement 
thresholds from 0% to 100% in 5% increments.  The results will summarized using a graph 
of proportion of responders in each treatment group versus improvement thresholds. 
Sensitivity Analysis for Testing Noninferiority of OKZ to Adalimumab 
To stress-test the analysis of noninferiority of OKZ to adalimumab with regards to the 
ACR20 and DAS28 (CRP) <3.2 rates at Week 12, data at time points after premature 
withdrawal from the study will be imputed based on the MAR assumption.  Subjects imputed 
under the MAR assumption within their treatment group will follow the distribution of 
responses in their respective treatment groups and will not be biased towards similarity 
between the compared treatment groups. 
This approach will be implemented with MI applied to each continuous parameter that is 
involved in the definition of the ACR20 and DAS28 (CRP) <3.2 responses.  Data collected 
after premature discontinuation of randomized treatment through Week 12 will be included 
in this analysis.  Intermediate and monotone missing data of each involved continuous 
parameter will be multiply imputed under the MAR assumption within each treatment group 
using a multivariate normal imputation model and the MCMC method. 
The binary ACR20 and DAS28 (CRP) <3.2 response variables at Week 12 will then be 
computed from the multiply imputed data for all subjects.  Multiply imputed datasets will be 
analyzed using the same method as in the primary analysis, followed by combining the 
results using Rubin’s rule (Rubin, 1987). 
Additionally, a tipping point analysis will be performed in a similar manner as it was 
described above in the context of superiority testing. 

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Sensitivity to Data Following Initiation of Rescue Medication 
Sensitivity analyses classifying subjects who receive any rescue medication as nonresponders 
will be performed for binary efficacy endpoints defined at time points from Week 16 to 
Week 24. 
9.4.10 
Pharmacokinetic Analyses 
At least 33% of subjects in the OKZ treatment groups will be randomly selected to have their 
PK samples analyzed, and OKZ concentrations in plasma will be summarized descriptively 
by scheduled collection time and dose regimen.  Time to steady state will be graphically 
evaluated for the OKZ trough data collected throughout the study.  Pharmacokinetic 
relationships will be explored graphically and with linear or nonlinear modeling approaches, 
as appropriate.  Data collected in this study may be combined with data from other OKZ 
studies in support of population PK analyses. 
For subjects not randomly selected for the main PK analysis, OKZ concentration data will 
only be analyzed and presented as part of the PK summaries if the subject has a confirmed 
positive ADA response in at least 1 postdose sample collected during the Treatment Period.  
Olokizumab results will be presented separately for the ADA-positive subjects and 
combined, as appropriate.  Furthermore, these data may be included in the population PK 
analyses or in a separate PK assessment of ADA-positive subjects, as appropriate. 
The related endpoints are described in in Section 4.4.  Further details for the PK analysis will 
be provided in the SAP. 
9.4.11 
Pharmacokinetic/Pharmacodynamic Correlations 
The PK/PD relationship and immunogenicity of OKZ will be determined as described in the 
endpoints by Section .  Analyses may include statistical comparisons and/or population 
PK/PD analyses.  Further details for evaluation of PK/PD and PK/safety correlations will be 
provided in the SAP or a separate population PK/PD analysis plan. 
9.4.12 
Immunogenicity 
Immunogenicity results, including overall ADA results (Screening, confirmatory, and titers, 
as appropriate), neutralizing ADA results, and the time course of antibodies (defined as the 
time to first observation of a positive ADA response) will be listed.  The number and 
percentage of subjects testing positive for ADAs or neutralizing antibodies will be 
summarized by dose treatment group over time.  If applicable, the time course of antibodies 
may be summarized by treatment group using appropriate descriptive statistics. 

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9.4.13 
Safety Analyses 
Analysis of safety endpoints (see Section 4.6) will be done based on the Safety population.  
Subjects in the Safety population will be analyzed according to the treatment they actually 
received.  Additionally to the primary safety analysis, the incidence of AEs will be analyzed 
separately for subjects administered additional DMARDs as rescue medication during the 
Treatment Period without rescue medication and with rescue medication. 
Major components for the safety analysis will include: 
• 
AEs will be solicited at every study visit, recorded, and coded according to the most 
recent version of the MedDRA. 
• 
SAEs 
• 
Vital signs and physical examination findings 
• 
Laboratory parameters 
• 
ECG and other specialized tests findings 
All safety assessments will be summarized in a descriptive manner.  Further details will be 
provided in the SAP. 
9.4.13.1 
Adverse Events 
All AEs will be analyzed in terms of descriptive statistics and qualitative analysis.  Adverse 
events will be listed for each subject and summarized by SOC and PT according to the most 
recent version of the MedDRA.  In addition, summaries of AEs by severity (evaluated using 
the CTCAE version 4.0) and relationship to study treatment will be presented.  All safety and 
tolerability data recorded during the study will be listed and summarized by treatment group, 
and over time, as appropriate.  Additionally to the primary safety analysis, the incidence of 
AEs will be analyzed separately for subjects administered additional DMARD as rescue 
medication during the Treatment Period without rescue medication and with rescue 
medication. 
Treatment-emergent AEs are defined as AEs that first occurred or worsened in severity after 
the first administration of the study treatment.  Adverse event summaries will include 
incidence of TEAEs, SAEs including deaths, AEs that led to study treatment discontinuation, 
and AEs by maximum severity and relationship to study treatment.  All summaries will be 
presented by the MedDRA SOC and PT for each treatment group. 
Safety/tolerability and AE data will be presented in individual listings. 

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9.5 
Subgroup Analysis 
All subgroup analyses will be exploratory (post hoc) in nature.  The details of these analyses 
will be described in the SAP and provided prior to the database lock.  No specific subgroup 
analysis will be described in detail in the protocol. 
9.6 
Safety Monitoring Committees 
A DSMB and CVAC will oversee the study from a safety and CV monitoring perspective, as 
described in Section 7.4.4. 
9.7 
Interim Analyses 
No interim analyses are planned for the study. 

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10. 
ETHICS 
10.1 Institutional Review Board/Independent Ethics Committee 
An IRB/IEC should approve the final protocol, including the final version of the ICF and any 
other written information and/or materials to be provided to the subjects.  The Investigator 
will provide R-Pharm or R-Pharm’s designee with documentation of IRB/IEC approval of 
the protocol and the ICFs before the study may begin at the study site(s).  The Investigator 
should submit the written approval to R-Pharm or its designee before enrollment of any 
subject into the study. 
R-Pharm or its designee should approve any modifications to the ICF that are needed to meet 
local requirements. 
The Investigator will supply documentation to R-Pharm or R-Pharm’s designee of required 
IRB/IEC’s annual renewal of the protocol, and any approvals of revisions to the ICF or 
amendments to the protocol. 
The Investigator will report promptly to the IRB/IEC, any new information that may 
adversely affect the safety of subjects or the conduct of the study.  Similarly, the Investigator 
will submit written summaries of the study status to the IRB/IEC annually, or more 
frequently if requested by the IRB/IEC.  Upon completion of the study, the Investigator will 
provide the ethics committee with a brief report of the outcome of the study, if required. 
R-Pharm or its designee will handle the distribution of any of these documents to the national 
regulatory authorities. 
R-Pharm or its designee will provide Regulatory Authorities, IRBs/IECs, and Investigators 
with safety updates/reports according to local requirements, including SUSARs, where 
relevant. 
Each Investigator is responsible for providing the IRB/IEC with reports of any serious and 
unexpected adverse drug reactions from any other study conducted with the study treatment.  
R-Pharm or its designee will provide this information to the Investigator so that he/she can 
meet these reporting requirements. 
10.2 Ethical Conduct of the Study 
The GCP is an international ethical and scientific quality standard for designing, conducting, 
recording, and reporting studies that involve the participation of human subjects.  The study 
will be conducted in compliance with GCP and the applicable national regulations so as to 

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assure that the rights, safety, and well-being of the participating study subjects are protected 
consistent with the ethical principles that have their origin in the Declaration of Helsinki. 
10.3 Subject Information and Informed Consent 
The ICF will be used to explain the risks and benefits of study participation to the subject in 
simple terms before the subject will be entered into the study.  The ICF contains a statement 
that the consent is freely given, that the subject is aware of the risks and benefits of entering 
the study, and that the subject is free to withdraw from the study at any time.  Written 
consent must be given by the subject and/or legal representative after the receipt of detailed 
information on the study. 
All ICFs must be available in the local and vernacular languages required at the study site 
and include subject information sheets/brochures that outline the study procedures.  All ICFs 
must be signed and dated by the subject or a legally acceptable representative. 
For subjects who are unable to read and write, the subject information sheet and ICF should 
be read to the subject in his/her native language in the presence of an impartial witness who 
is literate and not affiliated with the study.  The subject having understood the information 
given to him/her in the presence of an impartial witness will thumbprint the ICF and the same 
will be countersigned by the impartial witness.  If the subject or legally acceptable 
representative cannot read then an impartial witness will witness and attest the entire consent 
process and will be required to sign the consent form.  Confirmation of a subject’s informed 
consent must also be documented in the subject’s medical record prior to any testing under 
this protocol, including Screening tests and assessments. 
The Investigator is responsible for ensuring that informed consent is obtained from each 
subject or legal representative and for obtaining the appropriate signatures and dates on the 
ICF prior to the performance of any protocol procedures and prior to the administration of 
study treatment.  The Investigator will provide each subject with a copy of the signed and 
dated consent form while the originals will be retained in the Investigator’s records. 
10.4 Subject Data Protection 
The ICF will incorporate or, in some cases, be accompanied by a separate document 
incorporating wording that complies with relevant data protection and privacy legislation.  
R-Pharm or R-Pharm’s designee will not provide individual results to subjects, any insurance 
company, any employer, their family members, general physician, or any other third party, 
unless required to do so by law. 
Information about study subjects will be kept confidential and managed according to the 
regulatory requirements. 

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11. 
STUDY ADMINISTRATION 
11.1 Administrative Structure 
A list of the key individuals from R-Pharm and R-Pharm’s designee who will contribute to 
this study and their roles will be available in the Study Reference Manual, kept on file, and 
updated as required. 
The telephone and fax number of the study medical contact are listed in the Investigator 
Folder provided to each study site. 
The 24-hour emergency medical contact number for this study is +1 973-659-6677 (alternate 
number: +1 570-819-8565). 
11.2 Study and Study Site Closure 
Upon completion of the study, the monitor will conduct the following activities in 
conjunction with the Investigator or study site staff, as appropriate, including the following: 
• 
Return of all study data to R-Pharm 
• 
Resolution of data queries 
• 
Accountability, reconciliation, and arrangements for unused study treatments 
• 
Review of study site, study records for completeness 
• 
Review requirements for record retention and audit responsibilities 
11.3 Study Discontinuation 
The study may be discontinued at any time by the IRB/IEC, R-Pharm, or regulatory agencies 
as part of their duties to ensure that research subjects are protected. 
R-Pharm reserves the right to temporarily suspend or prematurely discontinue this study 
either at a single study site or at all study sites at any time for reasons including safety or 
ethical issues or severe noncompliance.  If R-Pharm determines such action is needed, 
R-Pharm will discuss this with the Investigator (including the reasons for taking such action) 
at that time.  When feasible, R-Pharm will provide advance notification to the Investigator of 
the impending action prior to its taking effect. 
R-Pharm will promptly inform all other Investigators and/or institutions conducting the study 
if the study is suspended or terminated for safety reasons, and will also inform the regulatory 
authorities of the suspension or termination of the study and the reason(s) for the action.  If 

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required by applicable regulations, the Investigator must inform the IRB/IEC promptly and 
provide the reason for the suspension or termination. 
If the study is prematurely discontinued, all study data must be returned to R-Pharm or its 
designee.  In addition, arrangements will be made for return of all unused study treatments in 
accordance with R-Pharm’s applicable procedures for the study. 
Financial compensation to Investigators and/or institutions will be in accordance with the 
agreement established between the Investigator and R-Pharm. 
11.4 Data Handling and Record Keeping 
Information about study subjects will be kept confidential and managed according to the 
regulatory requirements.  It is the Investigator’s responsibility to maintain essential study 
documents (protocol and protocol amendments, completed eCRFs, signed ICFs, relevant 
correspondence, and all other supporting documentation).  The study site should plan on 
retaining such documents for approximately 15 years after study completion.  The study site 
should retain such documents until at least 2 years after the last approval of a marketing 
application in an ICH region and until there are no pending or contemplated marketing 
applications in an ICH region or at least 2 years after the formal discontinuation of clinical 
development of the study treatment.  These documents should be retained for a longer period 
if required by the applicable regulatory requirements or the hospital, institution, or private 
practice in which the study is being conducted. 
Subject identification codes (subject names and corresponding study numbers) will be 
retained for this same period of time.  These documents may be transferred to another 
responsible party, acceptable to R-Pharm, who agrees to abide by the retention policies.  
Written notification of transfer must be submitted to R-Pharm.  The Investigator must contact 
R-Pharm prior to disposing of any study records. 
No records should be disposed of without the written approval of R-Pharm. 
11.5 Direct Access to Source Data/Documents 
The Investigator will prepare and maintain adequate and accurate source documents to record 
all observations and other pertinent data for each subject randomized into the study. 
Source data is all information, original records of clinical findings, observations, or other 
activities in a clinical study necessary for the complete reconstruction and evaluation of the 
study.  Source data are contained in source documents.  Examples of these source documents 
and data records include:  hospital records, clinical and office charts, laboratory notes, 
memoranda, subject’s evaluation checklists, pharmacy dispensing records, recorded data 

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from automated instruments, copies or transcriptions certified after verification as being 
accurate and complete, microfiches, photographic negatives, microfilm or magnetic media, 
radiographs, subject’s records, and records kept at the pharmacy, at the laboratories, and at 
medico-technical departments involved in the clinical study. 
The Investigator will allow the authorized R-Pharm’s designee and authorized regulatory 
authorities and IRBs/IECs to have direct access to all documents pertaining to the study, 
including individual subject medical records, as appropriate. 
11.6 Investigator Information 
11.6.1 
Investigator Obligations 
The Investigator is responsible for ensuring that all study site staff, including 
sub-Investigators, adhere to all applicable regulations and guidelines, including local laws 
and regulations, regarding clinical studies both during and after study completion. 
The Investigator is responsible for informing the IRB/IEC of the progress of the study, for 
obtaining annual IRB/IEC renewal, and informing the IRB/IEC of completion of the study, 
and will provide the IRB/IEC with a summary of the results of the study. 
The study will be conducted in compliance with the protocol, GCP, and the applicable 
regulatory requirements of European Commission Directive (2001/20/EC Apr 2001) and/or 
European Commission Directive (2005/28/EC Apr 2005) and/or the US Food and Drug 
Administration GCP Regulations:  Code of Federal Regulations Title 21, parts 11, 50, 54, 56, 
and 312, and/or other applicable local or regional regulations. 
The Investigator agrees to conduct the clinical study in compliance with this protocol after 
the approval of the protocol by the IRB/IEC in compliance with local regulatory 
requirements.  The Investigator and R-Pharm will sign the protocol to confirm this 
agreement. 
11.6.2 
Protocol Signatures 
After reading the protocol, each Investigator will sign the protocol signature page and send a 
copy of the signed page to R-Pharm or its designee.  By signing the protocol, the Investigator 
confirms in writing that he/she has read, understands, and will strictly adhere to the study 
protocol and will conduct the study in accordance with the ICH Tripartite Guidelines for 
GCP and applicable regulatory requirements.  The study will not be able to start at any study 
site where the Investigator has not signed the protocol. 

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11.6.3 
Publication Policy 
R-Pharm shall retain the title and the right to publish all documentation, records, raw data, 
specimens, or other work product generated pertaining to the study (“data”) conducted by the 
study site (study site includes the Investigator and the institution) as defined in the applicable 
protocol or study plan or study agreement.  The study site shall maintain confidentiality and 
not disclose or divulge such “data” to any third party.  However, the study site may seek 
permission to publish such “data” for limited purpose and such “data” may be published by 
the study site only upon receipt of prior written approval from R-Pharm. 
11.7 Financing and Insurance 
R-Pharm is the Sponsor of the study.  R-Pharm will provide insurance in accordance with 
local guidelines and requirements as a minimum for the subjects participating in this study.  
The terms of the insurance will be kept in the study files. 
R-Pharm has obtained liability insurance, which covers this study as required by local law 
and/or national regulations and/or ICH guidelines, whichever is applicable.  The terms of the 
insurance will be kept in the study files. 

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12. 
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of rheumatoid arthritis in patients taking concomitant methotrexate.  The ARMADA Trial.  
Arthritis Rheum 2003;48(1):35-45. 
World Health Organization.  Global Tuberculosis Report 2015.  Accessed on 
14 December 2015.  Available from: http://www.who.int/tb/publications/global_report/en/ 

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13. 
APPENDICES 
13.1 Appendix 1:  Steinbrocker Functional Classification  
 
 
 

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13.2 Appendix 2:  New York Heart Association Functional Capacity 
Classifications 
• Class I.  Patients with cardiac disease but without resulting limitation of physical 
activity.  Ordinary physical activity does not cause undue fatigue, palpitation, 
dyspnea, or anginal pain. 
• Class II.  Patients with cardiac disease resulting in slight limitation of physical 
activity.  They are comfortable at rest.  Ordinary physical activity results in fatigue, 
palpitation, dyspnea, or anginal pain. 
• Class III.  Patients with cardiac disease resulting in marked limitation of physical 
activity.  They are comfortable at rest.  Less than ordinary activity causes fatigue, 
palpitation, dyspnea, or anginal pain. 
• Class IV.  Patients with cardiac disease resulting in inability to carry on any physical 
activity without discomfort.  Symptoms of heart failure or the anginal syndrome may 
be present even at rest.  If any physical activity is undertaken, discomfort is increased. 
 
 

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13.3 Appendix 3:  American College of Rheumatology 2010 Criteria 
 
Score 
Target population (Who should be tested?):  Patients who 
 
1) have at least 1 joint with definite clinical synovitis (swelling) 
 
2) with the synovitis not better explained by another disease 
 
Classification criteria for RA (score-based algorithm:  add score of categories A–D; a score 
of ≥6/10 is needed for classification of a patient as having definite RA) 
 
A.  Joint involvement 
 
1 large joint 
0 
2−10 large joints 
1 
1−3 small joints (with or without involvement of large joints) 
2 
4−10 small joints (with or without involvement of large joints) 
3 
>10 joints (at least 1 small joint) 
5 
B.  Serology (at least 1 test result is needed for classification)  
 
Negative RF and negative anti-CCP 
0 
Low-positive RF or low-positive anti-CCP 
2 
High-positive RF or high-positive anti-CCP 
3 
C.  Acute-phase reactants (at least 1 test result is needed for classification) 
 
Normal CRP and normal ESR 
0 
Abnormal CRP or abnormal ESR 
1 
D.  Duration of symptoms 
 
<6 Weeks 
0 
≥6 Weeks 
1 
 
 
Abbreviations:  anti-CCP = anti-citrullinated protein antibody; CRP = C-reactive protein; ESR = erythrocyte sedimentation 
rate; RA = rheumatoid arthritis; RF = rheumatoid factor. 

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13.4 Appendix 4:  Methotrexate Dose Reduction Guidelines 
ALT and/or AST 
Total Bilirubin 
Repeat Laboratory  
MTX 
Study Treatment 
1× to ≤2× ULN 
<2× ULN 
No need 
No change 
No change 
>2× to ≤3× ULN  
<2× ULN  
Within 1 week 
No change or can consider 
reduction in dose 
No change 
If repeat >2× to ≤3× ULN   
<2× ULN 
Within 1 week 
Reduce dosage and follow LFTs 
No change 
>3× to ≤8× ULN 
(without the appearance of 
fatigue, nausea, vomiting, right 
upper quadrant pain or 
tenderness, fever, or rash) 
≤2× ULN 
Within 72 hours of initial finding, 
and then at least weekly after last 
finding until resolution, stabilization, 
or return to baseline values 
Hold MTX until LFTs normalize 
or return to baseline and consider 
restarting at lower dose 
No change 
If repeat >3× to ≤8× ULN 
(without the appearance of 
fatigue, nausea, vomiting, right 
upper quadrant pain or 
tenderness, fever, or rash) 
≤2× ULN 
Within 72 hours of initial finding, 
and then at least weekly after last 
finding until resolution, stabilization, 
or return to baseline values 
Hold MTX until LFTs normalize 
or return to baseline and consider 
restarting at lower dose 
Hold and consider 
restarting after discussion 
with the R-Pharm Medical 
Advisor or designee  
>3× ULN with appearance of 
fatigue, nausea, vomiting, right 
upper quadrant pain or 
tenderness, fever, rash, and/or 
eosinophilia (>5%) 
<2× ULN 
Within 72 hours of initial finding, 
and then at least weekly after last 
finding until resolution, stabilization, 
or return to baseline values 
Hold MTX.  Follow local 
Standard of Care. 
Permanently discontinue 
study treatment 
>3× ULN 
>2× ULN 
Within 72 hours of initial finding, 
and then at least weekly after last 
finding until resolution, stabilization, 
or return to baseline values 
Hold MTX.  Follow local 
Standard of Care. 
Permanently discontinue 
study treatment 
>5× ULN for more than 
2 weeks 
≤2× ULN 
Within 72 hours of initial finding, 
and then at least weekly after last 
finding until resolution, stabilization, 
or return to baseline values 
Hold MTX.  Follow local 
Standard of Care. 
Permanently discontinue 
study treatment 

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ALT and/or AST 
Total Bilirubin 
Repeat Laboratory  
MTX 
Study Treatment 
>8× ULN 
≤2× ULN 
Within 72 hours of initial finding, 
and then at least weekly after last 
finding until resolution, stabilization, 
or return to baseline values 
Hold MTX.  Follow local 
Standard of Care. 
Permanently discontinue 
study treatment 
Abbreviations:  ALT = alanine aminotransferase; AST = aspartate aminotransferase; MTX = methotrexate; LFTs = liver function tests; ULN = upper limit of normal. 

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13.5 Appendix 5:  Tuberculosis Risk Questionnaires 
13.5.1 
Tuberculosis Risk Questionnaire for Screening Visit 
The following questions are to be asked to every subject for evaluation of signs and 
symptoms of tuberculosis (TB).  Responses to each question must be documented on this 
source document. 
Question 
Response 
1) Does the subject have a currently active TB disease or a history of 
active TB disease? 
     Yes        No 
2) Has the subject been in close contact (i.e., sharing the same household 
or other enclosed environment, such as a social gathering place, 
workplace, or facility, for extended periods during the day) with an 
individual with active TB within the past 1.5 years? 
     Yes        No 
 
3) Is the subject a TB hospital, forensic medical examination, or morgue 
employee? 
     Yes        No 
4) Does the subject work or has the subject stayed in long-stay 
institutions (e.g., homes for the elderly or disabled, prisons, etc) 
     Yes        No 
5) Does the subject reside in, did the subject ever reside in, or is the 
subject frequently travelling to a TB endemic region (as defined in 
Table 6)? (only applicable for subjects not living in an endemic region) 
     Yes        No 
6) Is the subject in frequent contact with underprivileged populations 
(homeless people or other people needing social assistance)? 
     Yes        No 
7) Does the subject have a new cough lasting more than 14 days or a 
change in a chronic cough? 
     Yes        No 
8) Does the subject have night sweats? 
     Yes        No 
9) Does the subject have a persistent fever? 
     Yes        No 
10) Does the subject have unintentional weight loss (more than 10% of 
body weight) in the past 3 months? 
     Yes        No 
11) Does the subject appear malnourished? 
     Yes        No 
12) Has the subject had an abnormal chest X-ray since the last 
evaluation? 
     Yes        No 
 
Physician’s signature:  
 

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13.5.2 
Tuberculosis Risk Questionnaire for Post-Screening Visits 
The following questions are to be asked to every subject for evaluation of signs and 
symptoms of tuberculosis (TB).  Responses to each question must be documented on this 
source document. 
Question 
Response 
1) Does the subject have a new diagnosis of active TB disease? 
     Yes        No 
2) Has the subject been in close contact (i.e., sharing the same household 
or other enclosed environment, such as a social gathering place, 
workplace, or facility, for extended periods during the day) with an 
individual with active TB since the last scheduled visit? 
     Yes        No 
3) Has the subject become an employee of a TB hospital, forensic 
medical examiner, or morgue since the last scheduled visit? 
     Yes        No 
4) Has the subject started work or has the subject stayed in long-stay 
institutions (e.g., homes for the elderly or disabled, prisons, etc.) since the 
last scheduled visit? 
     Yes        No 
5) Does the subject reside in or is the subject frequently travelling to a TB 
endemic region (as defined in Table 6)? (only applicable for subjects not 
living in an endemic region) 
     Yes        No 
6) Has the subject been in frequent contact with underprivileged 
populations (homeless people or other people needing social assistance) 
since the last scheduled visit? 
     Yes        No 
7) Does the subject have a new cough lasting more than 14 days or a 
change in a chronic cough? 
     Yes        No 
8) Does the subject have night sweats? 
     Yes        No 
9) Does the subject have a persistent fever? 
     Yes        No 
10) Does the subject have unintentional weight loss (more than 10% of 
body weight) in the past 3 months? 
     Yes        No 
11) Does the subject appear malnourished? 
     Yes        No 
12) Has the subject had an abnormal chest X-ray since the last 
evaluation? 
     Yes        No 
 
Physician’s signature:  
 

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Table 6 
List of Endemic TB Countries (Incidence >50/100,000) 
Country 
Incidencea 
Country 
Incidencea 
Country 
Incidencea 
Afghanistan 
189 (167–212) 
Greenland 
197 (173–223) 
Nigeria 
322 (189–488) 
Algeria 
78 (64–94) 
Guatemala 
57 (51–64) 
Northern 
Mariana Islands 
61 (53–69) 
Angola 
370 (240–529) 
Guinea 
177 (156–199) 
Pakistan 
270 (201–350) 
Azerbaijan 
77 (68–86) 
Guinea-Bissau 
369 (261–495) 
Papua New 
Guinea 
417 (304–547) 
Bangladesh 
227 (200–256) 
Guyana 
103 (91–116) 
Peru 
120 (98–145) 
Belarus 
58 (50–67) 
Haiti 
200 (177–225) 
Philippines 
288 (254–324) 
Benin 
61 (50–74) 
India 
167 (156–179) 
Romania 
81 (71–91) 
Bhutan 
164 (148–181) 
Indonesia 
399 (274–546) 
Russia 
84 (76–93) 
Bolivia 
120 (106–135) 
Ivory Coast 
165 (150–179) 
Rwanda 
63 (54–72) 
Botswana 
385 (361–410) 
Kazakhstan 
99 (64–141) 
Sao Tome and 
Principe 
97 (85–109) 
Brunei 
62 (54–70) 
Kenya 
246 (240–252) 
Senegal 
138 (122–154) 
Burkina Faso 
54 (48–59) 
Kiribati 
497 (406–597) 
Sierra Leone 
310 (235–394) 
Burundi 
126 (116–136) 
Kyrgyzstan 
142 (126–160) 
Solomon 
Islands 
86 (71–102) 
Cabo Verde 
138 (122–156) 
Laos 
189 (141–244) 
Somalia 
274 (242–308) 
Cambodia 
390 (353–428) 
Lesotho 
852 (612–1130) 
South Africa 
834 (737–936) 
Cameroon 
220 (195–247) 
Liberia 
308 (273–346) 
South Korea 
86 (81–91) 
Central African 
Republic 
375 (333–420) 
Lithuania 
62 (57–68) 
South Sudan 
146 (121–173) 
Chad 
159 (141–179) 
Madagascar 
235 (207–264) 
 
Sri Lanka 
65 (57–73) 
China 
68 (63–73) 
Malawi 
227 (122–365) 
Sudan 
94 (52–148) 
China, Hong 
Kong 
74 (65–84) 
Malaysia 
103 (83–124) 
Swaziland 
733 (533–963) 
China, Macao  
82 (72–93) 
Mali 
58 (56–59) 
Tanzania 
327 (155–561) 
Congo 
381 (335–430) 
Marshall Islands 
335 (274–402) 
Tajikistan 
91 (80–103) 
Democratic 
Republic of 
325 (295–356) 
Mauritania 
111 (79–148) 
Thailand 
171 (90–276) 

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Country 
Incidencea 
Country 
Incidencea 
Country 
Incidencea 
Congo 
Djibouti 
619 (547–696) 
Micronesia 
195 (87–347) 
Timor-Leste 
498 (411–594) 
Dominican 
Republic 
60 (53–68) 
Moldova 
153 (135–172) 
Togo 
58 (47–70) 
Ecuador 
54 (39–71) 
Mongolia 
170 (149–193) 
Turkmenistan 
64 (52–78) 
Equatorial 
Guinea 
162 (142–184) 
Morocco 
106 (97–115) 
Tuvalu 
190 (154–228) 
Eritrea 
78 (57–103) 
Mozambique 
551 (435–680) 
Uganda 
161 (141–183) 
Ethiopia 
207 (168–250) 
Myanmar 
369 (334–406) 
Ukraine 
94 (83–106) 
Fiji 
67 (55–81) 
Namibia 
561 (492–635) 
Uzbekistan 
82 (61–107) 
Gabon 
444 (393–497) 
Nauru 
73 (64–83) 
Vanuatu 
63 (52–74) 
Gambia 
174 (145–206) 
Nepal 
158 (139–178) 
Vietnam 
140 (116–167) 
Georgia 
106 (99–114) 
Nicaragua 
58 (53–63) 
Yemen 
48 (42–54) 
Ghana 
165 (80–281) 
Niger 
98 (87–110) 
Zambia 
406 (279–557) 
 
Zimbabwe 
278 (193–379) 
Abbreviations:  HIV = human immunodeficiency virus; TB = tuberculosis; WHO = World Health Organization. 
a.  Rate per 100,000 population 
Note:  ranges represent uncertainty intervals. 
Note:  The 30 WHO TB high burden countries are as follows:  Angola, Bangladesh, Brazil, Cambodia, China, Congo, 
Central African Republic, Democratic Republic of Congo, Ethiopia, India, Indonesia, Kenya, Lesotho, Liberia, 
Mozambique, Myanmar, Namibia, Nigeria, Pakistan, Papua New Guinea, Philippines, Russian Federation, Sierra Leone, 
South Africa, South Korea, Thailand, the United Republic of Tanzania, Viet Nam, Zambia, and Zimbabwe. 
Source: WHO Global Tuberculosis Report 2015. 
 

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13.6 Appendix 6:  Clinical Criteria for Diagnosing Anaphylaxis 
Anaphylaxis is highly likely when any one of the following 3 criteria are fulfilled: 
1. Acute onset of an illness (minutes to several hours) with involvement of the skin, 
mucosal tissue, or both (e.g., generalized hives, pruritus or flushing, swollen 
lips-tongue-uvula) AND AT LEAST 1 OF THE FOLLOWING 
a. 
Respiratory compromise (e.g., dyspnea, wheeze-bronchospasm, stridor, reduced 
PEF, hypoxemia) 
b. Reduced BP or associated symptoms of end-organ dysfunction (e.g., hypotonia 
[collapse], syncope, incontinence) 
2. Two or more of the following that occur rapidly after exposure to a likely allergen for 
that patient (minutes to several hours): 
a. 
Involvement of the skin-mucosal tissue (e.g., generalized hives, itch-flush, swollen 
lips-tongue-uvula) 
b. Respiratory compromise (e.g., dyspnea, wheeze-bronchospasm, stridor, reduced 
PEF, hypoxemia) 
c. 
Reduced BP or associated symptoms (e.g., hypotonia [collapse], syncope, 
incontinence) 
d. Persistent gastrointestinal symptoms (e.g., crampy abdominal pain, vomiting) 
3. Reduced BP after exposure to known allergen for that patient (minutes to several hours): 
c. 
Infants and children:  low systolic BP (age specific) or greater than 30% decrease 
in systolic BPa 
d. Adults:  systolic BP of less than 90 mm Hg or greater than 30% decrease from that 
person’s baseline. 
Abbreviations:  BP = blood pressure; PEF = peak expiratory flow. 
a.  Low systolic BP for children is defined as less than 70 mm Hg from 1 month to 1 year, less than (70 mm Hg + [2 × age]) 
from 1 to 10 years, and less than 90 mm Hg from 11 to 17 years. 
Source:  Reproduced from Sampson HA, et al.  J Allergy Clin Immunol. 2006.  Feb;117(2):391-7. 
 

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13.7 Appendix 7:  Recommendations for Management of Latent 
Tuberculosis 
Adapted CDC Recommendations for Management of Latent TB 
Drug(s) 
Duration 
Interval 
Comments 
Isoniazid 
9 months 
Daily 
Preferred treatment for: 
• 
Persons living with HIV 
• 
Children aged 2 to 11 
• 
Pregnant women (with 
pyridoxine/vitamin B6 supplements) 
 
 
 
 
 
 
Twice weeklya 
Preferred treatment for: 
• 
Pregnant women (with 
pyridoxine/vitamin B6 supplements) 
 
 
 
 
Isoniazid 
6 months 
Daily 
This regimen is not preferred for TB prophylaxis 
and should not be used in this study. 
 
 
 
 
 
 
Twice weeklya 
 
 
 
 
 
Isoniazid and 
Rifapentine 
3 months 
Once weeklya 
Treatment for: 
• 
Persons 12 years or older 
Not recommended for persons who are: 
• 
Younger than 2 years old 
• 
Living with HIV/AIDS taking 
antiretroviral treatment 
• 
Presumed infected with INH or 
RIF-resistant Mycobacterium 
tuberculosis 
• 
Women who are pregnant or expect to 
become pregnant within the 12-week 
regimen 
 
 
 
 
Rifampin 
4 months 
Daily 
 
 
 
 
 
Abbreviations:  AIDS = acquired immunodeficiency syndrome; CDC = Centers for Disease Control and Prevention; 
HIV = human immunodeficiency virus; INH = isoniazid; RIF = rifampin; TB = tuberculosis. 
a.  Use Directly Observed Therapy (DOT). 
 
 

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13.8 Appendix 8:  Protocol Amendment 2.1 (United States) Summary of 
Changes 

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Clinical Study Protocol Amendment 
Sponsor: 
R-Pharm 
19-1, Berzarina Street, Moscow 
Russian Federation 123154 
Protocol Number: 
CL04041023:  Clinical Rheumatoid Arthritis 
Development for Olokizumab (CREDO) 2 
Amendment Number: 
2.1 (United States) 
Title: 
A Randomized, Double-Blind, Parallel-Group, 
Placebo- and Active-Controlled, Multicenter 
Phase III Study of the Efficacy and Safety of 
Olokizumab in Subjects with Moderately to 
Severely Active Rheumatoid Arthritis Inadequately 
Controlled by Methotrexate Therapy 
Date of Original Protocol: 
29 January 2016 
Date of All Amendments: 
28 May 2018:  Amendment 2.1 (United States) 
23 November 2016:  Amendment 2 
29 September 2016:  Amendment 1 
 
 
 
 
 
 
 
 
Confidentiality Statement 
This confidential information in this document is provided to you as an Investigator or consultant for review by you, your 
staff, and the applicable Institutional Review Board/Independent Ethics Committee.  Your acceptance of this document 
constitutes agreement that you will not disclose the information contained herein to others without written authorization 
from the Sponsor. 
 

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SUMMARY OF RATIONALE AND CHANGES 
Changes have been made to the original protocol.  Based on the information presented in this 
amendment, there are no changes to the risk profile of olokizumab (OKZ). 
This amendment is specific to the United States (US). 
The protocol originally specified that study sites in the US would receive placebo from a 
single supplier.  However, due to an unforeseen disruption in the supply chain for the 
specified supplier, the protocol has been amended to accommodate alternative suppliers of 
placebo for study sites in the US. 
Individual revisions to the protocol are summarized below, with new text presented in bold 
font and deleted text presented in strikethrough font. 

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INDIVIDUAL CHANGES 
PROTOCOL LOCATION:  Section 6.2.3 (Placebo) 
 
CHANGE 
Placebo (sodium chloride 0.9%) will contain no active pharmaceutical 
ingredients.  In the US, placebo will be supplied by Hospira in plastic fliptop 
vials of 10 mL, packed as 1 labeled vial per labeled carton.  In the rest of the 
world, placebo will be supplied by B. Braun in polypropylene plastic 
ampoules of 10 mL, packed in cardboard cartons to contain 10 ampoules.  In 
the US, placebo will be provided as either a 10 mL vial or ampoule, 
depending on market availability.  Each placebo will be packed into a 
cardboard carton to contain 1 vial or ampoule. 
 
PROTOCOL LOCATION:  Section 6.3 (Packaging and Labeling) 
 
CHANGE 
Study treatment will be supplied in cartons containing either OKZ (1 vial) or 
placebo (1 vial/ampoule [US only] or 10 ampoules [rest of the world]).  
Study treatment will be packaged and labeled according to Good 
Manufacturing Practices and all applicable local country regulations with 
information on the study protocol number, drug identification, storage 
conditions, and dosage information.