Clinical trial NCT04338685
Conditions: Carcinoma, Hepatocellular Biliary Tract Cancer Secondary Liver Cancer Liver Metastases
Keywords: TLR7 Agonist
Sponsor: Hoffmann-La Roche
Start date: 2020-07-16; Completion date: 2023-01-09
Enrollment: 55 participants; Allocation: RANDOMIZED; Intervention model: SINGLE_GROUP

Brief summary:
Phase I study of RO7119929 given orally to participants with unresectable advanced or metastatic primary liver cancers and other solid tumors with predominant liver involvement. The primary objective of the study is to explore the safety and to determine the maximum tolerated dose (MTD) and/or optimal biologic dose (OBD) of RO7119929 as single agent.

Detailed description:

Arms: arm 1: Participants received 1mg RO7119929 every week in 3-week cycles. arm 2: Participants received 4 mg RO7119929 every week in 3-week cycles arm 3: Participants received 6 mg RO7119929 every week in 3-week cycles arm 4: Participants received 9 mg RO7119929 every week in 3-week cycles arm 5: Participants with both available and evaluable tumor biopsy samples received 5 mg RO7119929 on Cycle 1 Day 1 to month 12 arm 6: Participants received RO7119929 QW with step-up dosing of 2/5/5 mg during Cycle 1. arm 7: Participants received RO7119929 QW with step-up dosing of 2/5/6 mg during Cycle 1. arm 8: Participants received tocilizumab pre-treatment on Cycle 1 Day 1, approximately 2 hours prior to RO7119929 administration and 4 mg RO7119929 every week in 3-week cycles
Interventions: intervention 1: RO7119929 intervention 2: Tocilizumab
Intervention descriptions: intervention 1: RO7119929 will be administered orally as a capsule intervention 2: Tocilizumab will be administered in case of severe steroid-refractory cytokine release syndrome.

Tocilizumab will be administered as concentrate for solution for IV infusion at a dose: for participants \> 30 kg: 8 mg/kg, for participants \< 30 kg: 12mg/kg IV

Protocol documents:
Prot_SAP_000.pdf: 
Official Title: A First in Human, Open Label, Dose Escalation Phase I Study 
Evaluating Safety, Pharmacokinetics, Pharmacodynamics, and 
Preliminary Clinical Activity Profile of Single Agent RO7119929 (TLR7 
Agonist) Administered Orally to Participants with Unresectable 
Advanced or Metastatic Hepatocellular Carcinoma, Biliary Tract 
Cancer, or Solid Tumors with Hepatic Metastases 
NCT Number: NCT04338685 
Document Date: Protocol Version 3: 17-March-2021 


FINAL PROTOCOL APPROVAL
CONFIDENTIAL
The information contained in this document, especially any unpublished data, is the property of 
F. Hoffmann-La Roche Ltd (or under its control) and therefore, is provided to you in confidence as 
an investigator, potential investigator, or consultant, for review by you, your staff, and an 
applicable Ethics Committee or Institutional Review Board. It is understood that this information 
will not be disclosed to others without written authorization from Roche except to the extent 
necessary to obtain informed consent from persons to whom the drug may be administered.
RO7119929 —F. Hoffmann-La Roche Ltd
Protocol WP41377, Version 3
PROTOCOL
TITLE:
A FIRST IN HUMAN, OPEN LABEL, DOSE
ESCALATION PHASE I STUDY EVALUATING THE 
SAFETY, PHARMACOKINETICS, 
PHARMACODYNAMICS, AND PRELIMINARY
CLINICAL ACTIVITY PROFILE OF SINGLE AGENT 
RO7119929 (TLR7 AGONIST) ADMINISTERED 
ORALLY TO PARTICIPANTS WITH 
UNRESECTABLE ADVANCED OR METASTATIC 
HEPATOCELLULAR CARCINOMA, BILIARY 
TRACT CANCER, OR SOLID TUMORS WITH 
HEPATIC METASTASES
PROTOCOL NUMBER:
WP41377
VERSION:
3
EUDRACT NUMBER:
2019-002150-23
IND NUMBER:
To be determined
TEST PRODUCT:
RO7119929
SPONSOR:
F. Hoffmann-La Roche Ltd
DATE FINAL:
12 December 2019
DATE AMENDED:
Version 2: 10 July 2020
Version 3: See electronic date stamp below
 
17-Mar-2021 12:52:09
Title
Approver's Name
Company Signatory
Date and Time (UTC)


RO7119929—F. Hoffmann-La Roche Ltd
2/Protocol WP41377, Version 3
PROTOCOL ACCEPTANCE FORM
TITLE:
A FIRST IN HUMAN, OPEN LABEL, DOSE
ESCALATION PHASE I STUDY EVALUATING THE 
SAFETY, PHARMACOKINETICS, 
PHARMACODYNAMICS, AND PRELIMINARY 
CLINICAL ACTIVITY PROFILE OF SINGLE AGENT 
RO7119929 (TLR7 AGONIST) ADMINISTERED 
ORALLY TO PARTICIPANTS WITH 
UNRESECTABLE ADVANCED OR METASTATIC 
HEPATOCELLULAR CARCINOMA, BILIARY 
TRACT CANCER, OR SOLID TUMORS WITH 
HEPATIC METASTASES
PROTOCOL NUMBER:
WP41377
VERSION NUMBER:
3
EUDRACT NUMBER:
2019-002150-23
IND NUMBER:
To be determined
TEST PRODUCT:
RO7119929
SPONSOR:
F. Hoffmann-La Roche Ltd
I agree to conduct the study in accordance with the current protocol.
Principal Investigator’s Name (print)
Principal Investigator’s Signature
Date
Please keep the signed original form in your study files, and return a copy to your local 
Site Monitor.


RO7119929—F. Hoffmann-La Roche Ltd
3/Protocol WP41377, Version 3
PROTOCOL AMENDMENT, VERSION 3
RATIONALE
Protocol WP41377 has been amended to introduce additional dosing schedules and to 
update the cytokine release syndrome (CRS) management guidelines. Changes to the 
protocol, along with a rationale for each change, are summarized below:

The original study design has been amended to investigate two alternative dosing
schedules for CRS mitigation (step-up dosing [Schedule 2] and flat dosing with 
tocilizumab pre-treatment [Schedule 3]). The schematic of study design 
(Section 1.2), the schedules of activities (SoA) tables (Section 1.3), the objectives 
(Section 3), the description of study design (Section 4), meals and dietary 
restrictions (Section 5.3.1), the description of tocilizumab administration as 
pre-treatment (Section 6.1.2), the description of measures to be taken in case of 
temporary interruption of study treatment (Section 7.1.1), the description of safety 
analyses (Section 9.4.3), and the statistical model (Appendix 6) have been updated 
accordingly.

The SoA has been revised further as follows:
–
Main Table (Section 1.3, Table 1) 
o
Addition of requirement for 24-hour hospitalization at specific visits
o
Addition of requirement for mandatory pre-medication in Cycle 1 (details 
have been included as new Section 6.1.3)
o
Addition of tocilizumab pre-treatment for Schedule 3
o
Additional vital sign monitoring and measurement of oxygen saturation in 
case of CRS Grade 2 (footnote 6; details have been added to Section 8
and Section 8.2.2)
o
Clarification that a viral load test for hepatitis B and hepatitis C virus (HBV 
and HCV) will be performed for all participants at the screening visit
(Footnote 20) per local health authority feedback. The related inclusion 
criterion in Section 5.1 has been modified accordingly.
–
Detailed Tables (Section 1.3, Table 2 and Table 3):
o
Both tables: addition of samples for tocilizumab PK, ADA, and PD markers 
for the new Schedule 3 with tocilizumab pre-treatment
o
Addition of sampling timepoints for RO7119929 PK and PD markers based 
on the observed PD and safety cytokine profile and kinetics

Table 2: PK plasma, PD plasma (safety), PD plasma, and PD blood 
(RNA) added to Cycle 1, Day 15 at predose, 2 and 8 hours after 
dosing and to Cycle 2, Day 1 at 12 hours after dosing

Table 3: PK plasma, PD plasma (safety), PD plasma, and PD blood 
(RNA) added to Cycle 1, Day 15 at predose, 2 and 8 hours after 
dosing and to Cycle 2, Day 1 at 12 hours after dosing


RO7119929—F. Hoffmann-La Roche Ltd
4/Protocol WP41377, Version 3
o
Both tables: removal of PD plasma (safety) sample at 30 hours after dosing 
from Cycle 1, Day 2 and Cycle 2, Day 2
o
Both tables: addition of a PD blood (RNA) sample at unscheduled visits.
o
Both tables: clarification that only the assessments for an unscheduled visit 
need to be performed if the EOTV/EDV coincides with an unscheduled 
visit.
o
Table 2 only: Clarification that in case no drug is administered on C2D1, all 
assessments planned for that day will be delayed to after the next drug 
administration.
–
Detailed tables for step-up dosing have been added (Table 4 and Table 5)

A discussion of risks associated with SARS-Cov-2 infection has been added to
Section 2.3 (Benefit/Risk Assessment) 

The eligibility criteria (Section 5.1 and Section 5.2) have been updated to optimize 
the participant population based on emerging data as follows:
–
The definition for the inclusion criterion “adequate hematologic function” has 
been amended to include a hemoglobin value of 9.0 g/dL (instead of 
10.0 g/dL) in the absence of impaired hematological function in the study 
participants treated so far.
–
For participants with HCC, the inclusion criterion based on Child-Pugh score 
has been changed from “B7 or better” to “A6 or better” to reflect the fragility of 
patients with Child-Pugh score of B7 and align with the overall eligibility criteria 
of the study.
–
It has been clarified that only major surgery within 3 weeks of dosing is an 
exclusion criterion.
–
The exclusion of HCV-RNA positive participants has been limited to HBV 
co-infected participants in line with the high unmet medical need in the 
HCV-positive HCC patient population, the positive benefit risk assessment for 
this population with other cancer immunotherapies and the absence of 
exacerbations of infections in the study participants treated so far.
–
It has been clarified that vaccination with a live or live-attenuated vaccine within 
28 days prior to Day 1 is an exclusion criterion.

Section 6.1.2 and Footnote 1 below Table 8 in Section 6.1 about use of locally 
available (commercial) tocilizumab in emergency situations have been updated to 
clarify that this is only applicable where approved locally.

Details regarding timing of preventive/routine vaccinations before and during the 
study have been added to Section 6.5.3 (Prohibited Therapy) to allow for preventive 
vaccinations with the exception of live and live-attenuated vaccines.

Section 6.6. (Dose Modification) has been revised for consistency with 
Section 4.1.1.1 (Description of Study Part A) to allow re-treatment of participants 
with a DLT at a reduced dose and following regression of toxicity in agreement with 
the Sponsor. 


RO7119929—F. Hoffmann-La Roche Ltd
5/Protocol WP41377, Version 3

The guidelines for managing specific adverse events (Section 8.3.9) have been 
modified based on emerging data related to the safety profile of RO7119929.

Section 8.8.1.3 was amended to clarify that it is mandatory to obtain formalin-fixed 
paraffin embedded archival tumor tissue from all participants (minimum of 4 slides 
recommended if blocks are not available).
Additional minor changes have been made to improve clarity and consistency. 
Substantial new information appears in Book Antiqua italics. This amendment represents 
cumulative changes to the original protocol.


RO7119929—F. Hoffmann-La Roche Ltd
6/Protocol WP41377, Version 3
TABLE OF CONTENTS
PROTOCOL ACCEPTANCE FORM .................................................................... 2
1.
PROTOCOL SUMMARY............................................................................. 15
1.1
Synopsis................................................................................ 15
1.2
Schematic of Study Design.................................................... 21
1.3
Schedule of Activities ............................................................ 21
2.
INTRODUCTION ........................................................................................ 38
2.1
Study Rationale ..................................................................... 38
2.2
Background ........................................................................... 38
2.3
Benefit/Risk Assessment....................................................... 39
3.
OBJECTIVES AND ENDPOINTS ............................................................... 40
4.
STUDY DESIGN......................................................................................... 43
4.1
Overall Design ....................................................................... 43
4.1.1
Study Overview....................................................................... 43
4.1.2
Length of the Study ............................................................... 46
4.1.3
Dose Escalation Decision Criteria ......................................... 46
4.1.4
Stopping Rules Criteria.......................................................... 49
4.1.5
Communication Strategy ....................................................... 49
4.1.6
Administrative Structure......................................................... 50
4.2
Scientific Rationale for Study Design..................................... 50
4.2.1
Rationale for Study Population .............................................. 51
4.2.2
Rationale for Biomarker Assessments................................... 51
4.2.3
Rationale for Pharmacokinetic Assessment .......................... 52
4.2.4
Rationale for the Treatment of Cytokine Release 
Syndrome Using Tocilizumab................................................ 53
4.2.5
Rationale for RO7119929 Step-up Dosing (Schedule 
2) ........................................................................................... 54
4.2.6
Rationale for Using Tocilizumab for Pre-treatment 
(Schedule 3)............................................................................. 55
4.2.7
Rationale for the Statistical Design........................................ 56
4.3
Justification for Dose ............................................................. 56
4.4
End of Study Definition .......................................................... 57


RO7119929—F. Hoffmann-La Roche Ltd
7/Protocol WP41377, Version 3
5.
STUDY POPULATION................................................................................ 57
5.1
Inclusion Criteria.................................................................... 57
5.2
Exclusion Criteria................................................................... 60
5.3
Lifestyle Considerations......................................................... 63
5.3.1
Meals and Dietary Restrictions.............................................. 64
5.4
Screen Failures ..................................................................... 64
6.
TREATMENTS............................................................................................ 64
6.1
Treatments Administered....................................................... 65
6.1.1
RO7119929 ........................................................................... 65
6.1.2
Tocilizumab Pre-Treatment ..................................................... 65
6.1.3
Pre-medication for RO7119929 ................................................. 66
6.2
Preparation/Handling/Storage/Accountability ........................ 67
6.3
Measures to Minimize Bias: Randomization and 
Blinding.................................................................................. 68
6.3.1
Method of Treatment Assignment.......................................... 68
6.3.2
Blinding.................................................................................. 68
6.4
Treatment Compliance .......................................................... 68
6.5
Concomitant Therapy ............................................................ 69
6.5.1
Rescue Medicine................................................................... 69
6.5.2
Permitted Therapy................................................................. 69
6.5.3
Prohibited Therapy ................................................................ 69
6.6
Dose Modification.................................................................. 71
6.7
Treatment after the End of the Study..................................... 71
7.
DISCONTINUATION OF STUDY, STUDY TREATMENT AND 
PARTICIPANT DISCONTINUATION/WITHDRAWAL................................. 72
7.1
Discontinuation of Study Treatment....................................... 72
7.1.1
Temporary Interruption .......................................................... 73
7.1.2
Resumption of Study Treatment............................................ 73
7.2
Participant Discontinuation/Withdrawal from the 
Study ..................................................................................... 74
7.3
Lost to Follow-Up................................................................... 74
8.
STUDY ASSESSMENTS AND PROCEDURES ......................................... 75
8.1
Efficacy Assessments............................................................ 76


RO7119929—F. Hoffmann-La Roche Ltd
8/Protocol WP41377, Version 3
8.1.1
Tumor and Response Evaluations......................................... 76
8.2
Safety Assessments .............................................................. 77
8.2.1
Physical Examinations........................................................... 78
8.2.2
Vital Signs.............................................................................. 78
8.2.3
Electrocardiograms................................................................ 78
8.2.4
Echocardiogram/MUGA......................................................... 79
8.2.5
Ophthalmological Examination .............................................. 79
8.2.6
Clinical Safety Laboratory Assessments................................ 79
8.2.7
PCR Testing for Participants with Resolved 
Hepatitis B and Hepatitis C.................................................... 80
8.2.8
Medical History and Demographic Data ................................ 81
8.3
Adverse Events and Serious Adverse Events ....................... 81
8.3.1
Time Period and Frequency for Collecting 
Adverse Event and Serious Adverse Event 
Information............................................................................. 81
8.3.2
Method of Detecting Adverse Events and Serious 
Adverse Events ..................................................................... 82
8.3.3
Follow-Up of Adverse Events and Serious 
Adverse Events ..................................................................... 82
8.3.4
Regulatory Reporting Requirements for Serious 
Adverse Events ..................................................................... 82
8.3.5
Pregnancy ............................................................................. 83
8.3.6
Non-Serious Adverse Events of Special Interest................... 84
8.3.7
Dose-Limiting Toxicities (Immediately Reportable 
to the Sponsor)...................................................................... 84
8.3.8
Disease-Related Events and/or Disease-Related 
Outcomes Not Qualifying as AEs or SAEs ............................ 84
8.3.9
Management of Specific Adverse Events .............................. 84
8.4
Treatment of Overdose.......................................................... 88
8.5
Pharmacokinetics .................................................................. 89
8.6
Immunogenicity ..................................................................... 89
8.7
Pharmacodynamics and Biomarkers Analyses...................... 89
8.7.1
Genetic and Genomic Analyses ............................................ 91
8.8
Pharmacodynamics and Biomarker Samples........................ 92
8.8.1
Mandatory Samples............................................................... 93


RO7119929—F. Hoffmann-La Roche Ltd
9/Protocol WP41377, Version 3
8.9
Samples for Research Biosample Repository ....................... 94
8.10
Health Economics/Medical Resource Utilization.................... 96
8.11
Timing of Study Assessments ............................................... 96
8.11.1
Screening and Pre-treatment Assessments .......................... 96
8.11.2
Assessments during Treatment............................................. 97
8.11.3
Assessments at Study Completion/Early 
Termination Visit.................................................................... 97
8.11.4
Follow-Up Assessments ........................................................ 97
8.11.5
Assessments at Unscheduled Visits...................................... 98
9.
STATISTICAL CONSIDERATIONS ............................................................ 98
9.1
Statistical Hypotheses ........................................................... 98
9.2
Sample Size Determination ................................................... 98
9.3
Populations for Analyses ....................................................... 98
9.4
Statistical Analyses................................................................ 99
9.4.1
Demographics and Baseline Characteristics ......................... 99
9.4.2
Efficacy Analyses .................................................................. 99
9.4.3
Safety Analyses..................................................................... 99
9.4.4
Pharmacokinetic Analyses................................................... 100
9.4.5
Immunogenicity Analyses.................................................... 100
9.4.6
Pharmacodynamic Analyses ............................................... 101
9.4.7
Other Analyses.................................................................... 101
9.5
Interim Analyses .................................................................. 101
9.6
Summaries of Conduct of Study.......................................... 101
10. REFERENCES ......................................................................................... 102
11. SUPPORTING DOCUMENTATION AND OPERATIONAL 
CONSIDERATIONS.................................................................................. 106
LIST OF TABLES
Table 1
Schedule of Activities for Part A and Part B................................ 22
Table 2
Detailed Schedule of Activities for Pharmacokinetic and 
Pharmacodynamic Measurements for Dose Escalation with 
Flat Dosing in Part A Schedules 1 and 3 (Without and With 
Tocilizumab Pre-treatment)............................................................ 27


RO7119929—F. Hoffmann-La Roche Ltd
10/Protocol WP41377, Version 3
Table 3
Detailed Schedule of Activities for Pharmacokinetic and 
Pharmacodynamic Measurements for Dose Expansion With 
Flat Dosing in Part B Schedules 1 and 3 (Without and With 
Tocilizumab Pre-treatment)............................................................ 30
Table 4
Detailed Schedule of Activities for Pharmacokinetic and 
Pharmacodynamic Measurements for Dose Escalation with Step-
up Dosing in Part A Schedule 2...................................................... 33
Table 5
Detailed Schedule of Activities for Pharmacokinetic and 
Pharmacodynamic Measurements for Dose Expansion with Step-
up Dosing in Part B Schedule 2 ...................................................... 35
Table 6
Objectives and Endpoints ........................................................... 40
Table 7
Adverse Events Considered Dose-limiting Toxicities .................. 48
Table 8
Summary of Treatments Administered........................................ 65
Table 9
Guidelines for Managing Specific Adverse Events...................... 85
Table 10
Analysis Populations................................................................... 98
Table 11
Safety Statistical Analysis Methods .......................................... 100
LIST OF FIGURES
Figure 1
Overview of Study Design – Monotherapy Dose-Escalation 
and Pharmacodynamics Dose Expansion .................................. 21
Figure 2
Dosing Schedule for Step-up Dosing ............................................... 45
LIST OF APPENDICES
Appendix 1
Regulatory, Ethical, and Study Oversight Considerations......... 107
Appendix 2
Adverse Events: Definitions and Procedures for Evaluating, 
Follow-up and Reporting........................................................... 116
Appendix 3
Procedures for Recording Adverse Events ............................... 124
Appendix 4
Clinical Laboratory Tests .......................................................... 129
Appendix 5
Contraceptive Guidance and Collection of Pregnancy 
Information................................................................................ 131
Appendix 6
Statistical Model Dose Evaluation............................................. 135
Appendix 7
Prohibited Co-medications in Respect to RO7119929 Dosing.. 143
Appendix 8
Response Evaluation Criteria in Solid Tumors – Version 1.1 
– Modified Excerpt from Original Publication with Addition of 
Supplementary Explanations .................................................... 145
Appendix 9
Modified RECIST v1.1 for Immune-Based Therapeutics 
(iRECIST).................................................................................. 155
Appendix 10
American Association for the Study of Liver Disease 
(AASLD) Criteria: Algorithm for Investigation of Small 
Nodules Found on Screening in Patients at Risk for HCC ........ 159
Appendix 11
Child-Pugh Classification .......................................................... 160
Appendix 12
Preexisting Autoimmune Diseases and Immune Deficiencies .. 161


RO7119929—F. Hoffmann-La Roche Ltd
11/Protocol WP41377, Version 3
Appendix 13
Schedule of Activities for Tocilizumab Treatment for Severe 
or Life-Threatening Cytokine Release Syndrome ..................... 162
Appendix 14
Prognostic Scores for Life Expectancy ..................................... 166


RO7119929—F. Hoffmann-La Roche Ltd
12/Protocol WP41377, Version 3
LIST OF ABBREVIATIONS AND DEFINITIONS OF TERMS
Abbreviation
Definition
ADA
Anti-drug antibody
AE
Adverse event
ALP
Alkaline phosphatase
ALT
Alanine aminotransferase
aPTT
Activated partial thromboplastin time
AST
Aspartate aminotransferase
AUC
Area under the curve
BP
Blood pressure
BTC
Biliary tract cancer
CIT
Cancer immunotherapy
CL
Clearance
CL/F
Apparent clearance
Cmax
Maximum concentration
CNS
Central nervous system
COA
Clinical outcome assessments
COVID-19
Coronavirus disease 2019
CPI
Checkpoint inhibitor
CR
Complete response
CRC
Colorectal cancer
CRS
Cytokine release syndrome
CT
Computed tomography
CTCAE
Common terminology criteria for adverse events
CTLA-4
Cytotoxic T-lymphocyte-associated protein 4
DCR
Disease control rate
DLT
Dose-limiting toxicities
DNA
Deoxyribonucleic acid
DoR
Duration of response
EC
Ethics Committee
ECG
Electrocardiogram
eCRF
Electronic case report form
EDC
Electronic data capture
eCOA
Electronic clinical outcome assessment
EOTV
End of treatment visit
EU
European Union
EWOC
Escalation with overdose control


RO7119929—F. Hoffmann-La Roche Ltd
13/Protocol WP41377, Version 3
FDA
Food and Drug Administration
FSH
Follicle-stimulating hormone
GC
GRIm
HBsAg
Gastric cancer
Gustave Roussy Immune
Hepatitis B surface antigen
HBcAb
Total hepatitis B core antibody
HCC
Hepatocellular carcinoma
HCV
Hepatitis C
HIV
Human immunodeficiency virus
iCC
Intrahepatic cholangiocarcinoma
ICH
International Council on Harmonisation
IEC
Independent Ethics Committee
IMP
Investigational medicinal product
IND
Investigational New Drug (application)
INR
International normalized ratio
IRB
Institutional Review Board
IRC
Independent Review Committee
iRECIST
immune Response evaluation criteria in solid tumors
IUD
Intrauterine device
IV
Intravenous
LDH
Lactate dehydrogenase
LPLV
Last participant, last visit
LVEF
Left ventricular ejection fraction
MoA
Mode of action
MRI
Magnetic resonance imaging
MTD
MUGA
Maximum tolerated dose
Multigated acquisition scan
NCI
National Cancer Institute
NGS
Next generation sequencing
NIMP
Non-investigational medicinal product
NOAEL
No-observed-adverse-effect level
NSAESI
Non-serious adverse event of special interest
OBD
Optimal biological dose
ORR
Objective response rate
OS
Overall survival
OTC
Over-the-counter
PD
Pharmacodynamic
PD-1
Anti-programmed death


RO7119929—F. Hoffmann-La Roche Ltd
14/Protocol WP41377, Version 3
PD-L1
Anti-programmed death-ligand
PDAC
Pancreatic ductal adenocarcinoma
PFS
Progression-free survival
PK
Pharmacokinetic
PoM
Proof of mechanism
PR
Partial response
PT
Prothrombin time
QRS
QRS complex
QT
QT interval
QTc
QT corrected for heart rate
QTcF
QT corrected for heart rate using the Fridericia’s 
correction factor
QW
Weekly
RBC
Red blood cell
RBR
Research biosample repository
RCC
RDE
Renal cell carcinoma
Recommended dose for expansion
RECIST
Response evaluation criteria in solid tumors
RNA
Ribonucleic acid
RR
RR interval
SAE
Serious adverse event
SARS-CoV-2
Severe acute respiratory syndrome coronavirus 2 
SoA
Schedule of activities
TLR
Toll-like receptor
tmax
Time of maximum concentration observed
TME
Tumor microenvironment
TNBC
Triple negative breast cancer
TSH
Thyroid-stimulating hormone
ULN
Upper limit of normal
US
United States
V
Volume
WBC
White blood cell
WES
Whole exome sequencing
WGS
Whole genome sequencing
WOCBP
Women of childbearing potential
WONCBP
Women of non-childbearing potential


RO7119929—F. Hoffmann-La Roche Ltd
15/Protocol WP41377, Version 3
1.
PROTOCOL SUMMARY
1.1
SYNOPSIS
PROTOCOL TITLE:
A FIRST IN HUMAN, OPEN LABEL, DOSE 
ESCALATION PHASE I STUDY EVALUATING THE 
SAFETY, PHARMACOKINETICS, 
PHARMACODYNAMICS, AND PRELIMINARY 
CLINICAL ACTIVITY PROFILE OF SINGLE AGENT 
RO7119929 (TLR7 AGONIST) ADMINISTERED 
ORALLY TO PARTICIPANTS WITH UNRESECTABLE
ADVANCED OR METASTATIC HEPATOCELLULAR 
CARCINOMA, BILIARY TRACT CANCER, OR SOLID 
TUMORS WITH HEPATIC METASTASES
SHORT TITLE
A PHASE I STUDY EVALUATING SAFETY, 
PHARMACOKINETICS, PHARMACODYNAMICS, AND
CLINICAL ACTIVITY OF RO7119929 (TLR7 AGONIST) 
IN PARTICIPANTS WITH UNRESECTABLE 
ADVANCED OR METASTATIC HEPATOCELLULAR 
CARCINOMA, BILIARY TRACT CANCER, OR SOLID 
TUMORS WITH HEPATIC METASTASES
PROTOCOL NUMBER:
WP41377
VERSION:
3
TEST PRODUCT:
RO7119929
PHASE:
I
RATIONALE
The management of most advanced solid tumors remains challenging as only a small proportion 
of patients responds to standard of care therapy, and almost all patients progress on or after 
therapy. Cancer immunotherapy (CIT) with immune checkpoint inhibiting (CPI) monoclonal 
antibodies such as anti-programmed death-1 (PD-1)/anti-programmed death-ligand 1 (PD-L1), 
has changed the treatment landscape in many cancer types, however, a majority of patients with 
metastatic disease do not derive benefit from this type of CIT, particularly those with non-inflamed 
(immune deserted or immune excluded) tumors.
Toll-like receptor (TLR) 7 is a member of the TLR family, which encompasses a group of major 
regulators of the innate immune response. TLR7 is an endosomal sensor of single-stranded RNA 
mainly expressed in hematopoietic cells, including plasmacytoid dendritic cells, macrophages, 
and B cells. TLR7 signals through MyD88, which results in a cytokine response (mainly IFN-α) 
and may promote an inflammatory microenvironment to foster effector T-cell activation and 
subsequent anti-tumor immunity. Multiple TLR7 agonists have entered clinical development for 


RO7119929—F. Hoffmann-La Roche Ltd
16/Protocol WP41377, Version 3
various tumor types. To date, their efficacy in early phase clinical studies has been hampered by 
several issues, including poor tolerability due to strong systemic cytokine activation.
RO7119929 is an orally administered prodrug of a TLR7 agonist. Conversion of RO7119929 to 
the active drug RO7117418 is mainly mediated through CYP2C9 and CYP2C19 metabolism. A 
predominantly hepatic activation is anticipated, based on the expression profile of these 
cytochromes as well as in vitro data generated in human hepatocytes and enterocytes 
demonstrating selective conversion in the liver. Together with a low solubility of the active drug 
RO7117418, this supports a rationale for evaluating tumors with predominant hepatic localization. 
The orally available prodrug approach may allow for an effective TLR7-mediated reprogramming 
of the immune microenvironment in the liver while limiting systemic immune effects.
WP41377 is a phase I study of RO7119929 given orally to participants with unresectable 
advanced or metastatic primary liver cancers and other solid tumors with predominant liver 
involvement. The primary objective of the study is to explore the safety and to determine the 
maximum tolerated dose (MTD) and/or optimal biologic dose (OBD of RO7119929 as single 
agent.
OBJECTIVES AND ENDPOINTS
Objectives
Endpoints
Primary

To evaluate safety and tolerability of RO7119929 
(prodrug) in participants with solid tumors with 
predominant liver involvement with and without 
tocilizumab pre-treatment

To determine the maximum tolerated dose (MTD) 
and/or optimal biologic dose (OBD) for RO7119929
with and without tocilizumab pre-treatment

Nature and frequency of dose-limiting 
toxicities

Incidence, nature and severity of 
adverse event according to NCI 
CTCAE v5.0
Secondary

To evaluate the PK profile of RO7119929 and 
RO7117418 (active drug) following oral 
administration of RO7119929 in participants with 
solid tumors with predominant liver involvement

To evaluate the effect of food on pharmacokinetics 
of RO7119929 and RO7117418 after administration 
of RO7119929 in participants with solid tumors with 
predominant liver involvement

PK parameters such as Cmax, Tmax, 
AUC, T1/2 for RO7119929 and 
RO7117418 following administration 
of RO7119929 

Effect of a meal on PK parameters 
such as Cmax, Tmax, AUC, T1/2 for 
RO7119929 and RO7117418 
following administration of 
RO7119929 compared to fasting 
conditions

To evaluate peripheral blood for biomarkers to 
support optimal biological dose and schedule 
selection

Change in inflammatory PD 
biomarkers in peripheral blood such 
as IFN-α and ISGs.


RO7119929—F. Hoffmann-La Roche Ltd
17/Protocol WP41377, Version 3
Objectives
Endpoints

To assess preliminary clinical activity of RO7119929 
administration in participants with solid tumors with 
predominant liver involvement

Objective response rate (ORR) 

Disease control rate (DCR)

Duration of response (DOR)

Progression-free survival
All of the above will be evaluated 
according to RECIST v1.1.

Overall survival

To assess preliminary clinical activity signals of 
RO7119929 administration in participants with solid 
tumors with predominant liver involvement with 
respect to liver lesions only

ORR

DCR

DOR
All of the above will be evaluated 
according to RECIST v1.1 and with 
respect to responses in liver lesions only.
OVERALL DESIGN
Study Design
WP41377 is a first in human, open label, multi-center, multiple-ascending dose escalation, 
Phase I study consisting of two parts: Part A (dose-escalation) and Part B (dose expansion). In 
addition, the effect of food intake on the pharmacokinetics (PK) of RO7119929 will be investigated. 
RO7119929 will be administered weekly (QW) in 3-week cycles. Within Part A, three different schedules 
will be investigated: Schedule 1 (QW flat dosing), Schedule 2 (QW step-up dosing), and Schedule 3 (QW 
flat dosing with tocilizumab pre-treatment). Other treatment schedules may be explored, based on 
emerging data after amending the protocol accordingly. Part B may enroll up to three expansion 
cohorts at different doses and / or dosing schedules based on emerging clinical and pharmacodynamic 
(PD) data. 
If dose escalation cohorts (Part A) and dose expansion cohorts (Part B) are open in parallel, the Sponsor 
will decide where to enroll each participant. Depending on evolving data, these decisions might aim at 
enrichment of certain participant subgroups within the PD expansion cohorts, e.g., by selection for certain 
tumor types.
If two or more dose expansion cohorts are open in parallel, enrollment into these cohorts will be decided by 
randomization.
Part A of this study will define the MTD/recommended dose for expansion (RDE) for different 
dosing schedules by escalating doses of RO7119929 as a single agent in adult patients with 
advanced or metastatic solid tumors with predominant liver involvement. Following determination 
of MTD and/or RDE, treatment will commence in Part B or this study at up to three different doses
and/or dosing schedules in specific expansion cohorts of participants for extended PD analysis, 
including collection of peripheral blood and mandatory paired tumor biopsies taken from the 
hepatic tumor manifestations to demonstrate proof of mechanism (PoM) .
Treatment Groups and Duration
The investigational medicinal products (IMPs) are: RO7119929 (capsule, oral administration) and 
tocilizumab (IV).
Pre-medication for RO7119929
At Cycle 1 Day 1, Cycle 1 Day 8, and Cycle 1 Day 15, the participant should be pre-medicated with 500 
mL of crystalloid fluid and 500-1000 mg paracetamol orally (PO) or intravenously (IV) at the time of 
RO7119929 administration (± 30 minutes), followed by 500-1000 mg paracetamol PO or IV 4-6 hours 
after first drug administration. If no cytokine release syndrome (CRS) is observed, no further pre-
medication is foreseen beyond Cycle 1. 


RO7119929—F. Hoffmann-La Roche Ltd
18/Protocol WP41377, Version 3
Pre-medication for participants who experience a Grade 2 CRS is to be administered for the subsequent 
dose according to the adverse event (AE) management guidelines.
The pre-medication regimens are based on the expected duration of inflammatory events and may be 
modified based on emerging data.
The treatment groups in the two parts are as follows:
Study Part A (Dose-Escalation)
Within Schedule 1 and Schedule 3, RO7119929 will be administered QW at the same dose. Within 
Schedule 2, RO7119929 will be administered QW with step-up dosing during Cycle 1. Within Schedule 
3, tocilizumab will be administered as pre-treatment on Cycle 1 Day 1, approximately 2 hours prior to 
RO7119929 administration.
Participants will be enrolled in cohorts with at least 3 evaluable participants, treated in a 
staggered manner (at least 1 week between the first and second participant and at least 24 
hours between subsequent participants). 
Treatment will consist of a screening period (Day -28 to Day -1), a treatment period (Cycle 1 Day 
1 to month 12; the length of the study may be modified based on emerging data), a time period 
following treatment discontinuation (concluded by an end of treatment visit [EOTV] within 28 
days of last study drug, followed by a safety follow-up visit 60 days after last study drug), and 
post-treatment survival follow-up assessments every 3 months for up to 24 months. Safety 
assessments for dose-limiting toxicity (DLT) determination will be performed during the first 
3 weeks (21 days) or 4 weeks (28 days) depending on schedule. Drug administration during the 
treatment period will continue until disease progression, unacceptable toxicities, or withdrawal of 
the participant’s consent up to a maximum of 12 months or 17 cycles, whichever comes first. As 
with other immunotherapies, treatment beyond progressive disease according to the response 
evaluation criteria in solid tumors (RECIST) v1.1 can be considered if deemed in the best 
interest of the study participant.
Dose escalation will be carried out according to a modified continual reassessment method 
(mCRM) with overdose control (mCRM-EWOC design). Dose escalation decisions and selection 
of the dose for the next cohort will be subject to clinical judgement by the Sponsor and the 
participating Investigators following review of all safety and available pharmacokinetic (PK and/or 
PD data and not based solely on DLT information, while being guided by the CRM-EWOC 
recommendation. 
For exploring the effect of food intake on the PK of RO7119929 in Part A, participants will receive
RO7119929 after a defined meal at the time of first target dose (Cycle 1 Day 1 or Cycle 1 Day 15, 
depending on schedule) and following a 10-hour fast at Cycle 2 Day 1 enabling intra-participant 
comparison. For this pilot food effect (FE) study, a minimum of 6 evaluable participants will be 
enrolled across several cohorts. 
Study Part B (Dose Expansion)
Each expansion cohort will enroll approximately 10 PD-evaluable participants. Participants with
both available and evaluable tumor biopsy samples will be considered evaluable for the PD 
endpoint. If signs of relevant anti-tumor and/or PD activity are observed within Part A at dose 
levels below MTD, it may be decided to initiate Part B at this dose level and schedule (i.e., 1, 2, or 
3) before Part A is complete after discussion and alignment between the Investigators and the 
Sponsor.
Treatment for all participants in Part B will consist of a screening period (Day -28 to Day -1), a 
treatment period (Cycle 1 Day 1 to month 12), a treatment discontinuation period (within 28 days 
of last study drug until EOTV), one safety follow-up visit and post-treatment survival follow-up 
assessments. Drug administration during the treatment period will continue until disease 
progression, unacceptable toxicities, or withdrawal of the participant’s consent up to a maximum 
of 12 months. As with other immunotherapies, treatment beyond progressive disease according 
to RECIST v1.1 can be considered, if deemed in best interest of the study participant.
The effect of food intake on PK data may be explored within Part B if less than 6 evaluable 
participants were included in Part A. 
Management of Cytokine Release Syndrome
Consistent with the TLR7 mechanism of action, cytokine release syndrome (CRS) has been 
reported with other systemic TLR7 agonists and IFN-α therapy. In this study tocilizumab will be 


RO7119929—F. Hoffmann-La Roche Ltd
19/Protocol WP41377, Version 3
administered as pre-treatment in Schedule 3. In addition, it can be used to manage CRS associated with 
RO7119929 in all study schedules. The efficacy of tocilizumab in the management of a potential 
CRS associated with RO7119929 is unknown. Hence, tocilizumab should be used for treatment of 
CSR only after careful consideration of the benefit/risk in a given participant.
Length of Study
Approximately 14 months (screening phase 28 days, treatment period up to 12 months, and 
follow-up period 28 days)
End of Study
The end of this study is defined as the date when the last participant, last visit occurs or after 
approximately 14 months after the last participant is enrolled, whichever occurs first. For an 
individual participant, the completion of the study (i.e., the last visit) will occur when the 
participant withdraws consent, has been lost to follow-up, dies, or when the study is stopped. 
Because of the exploratory nature of this clinical study, its conduct can be discontinued at any 
time at the discretion of the Sponsor.
Data Monitoring Committee: No
PARTICIPANT POPULATION
This study will enroll adults with unresectable advanced or metastatic hepatocellular carcinoma 
(HCC), biliary tract cancer (BTC), or specific solid tumors with predominant liver involvement. 
Key Inclusion Criteria

Histologically confirmed diagnosis of one of the following:
o
Participants with unresectable advanced or metastatic HCC (including 
fibrolamellar HCC) not amenable to a curative treatment approach. For 
participants with cirrhosis, clinical diagnosis by the American Association for the 
Study of Liver Diseases (AASLD) criteria is sufficient. 
o
Participants with unresectable advanced or metastatic intrahepatic or perihilar 
(Klatskin) BTC not amenable to a curative treatment approach.
o
Participants with extrahepatic BTC or gallbladder cancer infiltrating the liver or 
metastasized into the liver with predominant liver disease, not amenable to a 
curative treatment approach.
o
Participants with metastasized colorectal cancer (CRC), pancreatic ductal 
adenocarcinoma (PDAC), Gastric cancer (GC), renal cell carcinoma (RCC), 
triple negative breast cancer (TNBC), cutaneous melanoma, or ocular 
melanoma with predominant liver disease not amenable to a curative treatment 
approach. Participants with other solid tumors with predominant liver disease not 
amenable to a curative treatment approach might be enrolled after Sponsor 
approval.

Measurable disease with at least one measurable locally untreated liver lesion, as 
defined by RECIST v1.1.

Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1.

Adequate hematologic function.

Adequate major organ functions.

Participants for which there is no available standard therapy likely to confer clinical 
benefit, or participants who are not candidates for such available therapy.

Life expectancy of ≥12 weeks, approximated with Royal Marsden Hospital score 0-1 or 
Gustave Roussy Immune (GRIm) score 0-1. Participants with a Royal Marsden Hospital 
or GRIm score of ≥2 and a life expectancy of ≥12 weeks according to the investigator’s 
clinical judgement may be enrolled after Medical Monitor approval has been obtained.

For participants with HCC: Child-Pugh score of A6 or better.


 
RO7119929—F. Hoffmann-La Roche Ltd 
20/Protocol WP41377, Version 3 
Key Exclusion Criteria 
 
History or clinical evidence of central nervous system (CNS) primary tumors or 
metastases including leptomeningeal metastases, unless they have been previously 
treated, are asymptomatic, and have had no requirement for steroids or enzyme-
inducing anticonvulsants in the last 14 days prior to Screening.  
 
Evidence of any extra-hepatic primary tumor or metastasis requiring prompt medical 
intervention. 
 
Receipt of prior therapy with a TLR7/8/9 agonist and/or IFN- 
 
Prior chemotherapy, antibody, or other registered or experimental cancer treatment 
within 3 weeks of study Cycle 1 Day 1. Specifically, no CPI antibody is allowed to be 
administered within 6 weeks of study Cycle 1 Day 1. 
 
Receipt of investigational agent for any other indication within 3 weeks of dosing. 
 
Treatment with systemic immunosuppressive medication (including, but not limited to, 
corticosteroids, cyclophosphamide, azathioprine, methotrexate, thalidomide, and 
antiTNF-agents) within 2 weeks prior to initiation of study treatment, or anticipation of 
need for systemic immunosuppressive medication during study treatment. 
 
Local therapy to liver (e.g. radiofrequency ablation, percutaneous ethanol or acetic acid 
injection, cryoablation, high-intensity focused ultrasound, transarterial 
chemoembolization, and transarterial embolization) within 3 weeks prior to initiation of 
study treatment, radioembolization within 3 months prior to initiation of study treatment, 
or non-recovery from side effects of such procedure. 
 
Treatment-related toxicities from prior cancer therapy that have not resolved to  Grade 
1 CTC AE prior to study treatment with the exception of the following Grade 2 toxicities: 
alopecia, peripheral neuropathy, any laboratory changes that still lie within the inclusion 
criteria defined above.  
 
History of other malignancy within 2 years; exception for ductal carcinoma in situ not 
requiring chemotherapy, low grade cervical intraepithelial neoplasia (CIN), non-
melanoma skin cancer, low grade localized prostate cancer (Gleason score  Grade 7), 
or optimally treated Stage 1 uterine cancer. 
 
Active or history of immunologic-mediated disease, including but not limited to 
myasthenia gravis, myositis, autoimmune hepatitis, systemic lupus erythematosus, 
rheumatoid arthritis, multiple sclerosis, inflammatory bowel disease, antiphospholipid 
antibody syndrome, Wegener granulomatosis, Sjogren’s syndrome or Guillain-Barré 
syndrome. 
 
History of human immunodeficiency virus (HIV) infection 
 
Active hepatitis B virus (HBV) infection 
 
Coinfection of HBV and hepatitis C virus (HCV). 
 
NUMBER OF PARTICIPANTS 
Approximately 35 to 40 evaluable participants will be included under each schedule for dose 
escalation Part A. The exact number of participants will depend on the occurrence of DLTs and 
the number of dose-levels required to determine the MTD and/or the RDE. 
Up to approximately 60 participants will be enrolled in the study expansion Part B. 
 
CONCOMITANT MEDICATIONS 
RO7119929 might inhibit CYP3A in the gastro-intestinal tract during its absorption. Co-
medications known to be moderate and strong CYP3A substrates should be therefore 
administered at least 4 hours before and 2 hours after RO7119929 in order to minimize the risk 
of increased exposure of these co-medications. 
Co-medications known to interfere with CYP2C9 and CYP2C19 by moderate and strong 
inhibition are generally prohibited as they might inhibit the conversion of RO7119929 during first 
pass but might be allowed after discussion with the Sponsor. 
Co-medications known to be OATP substrates/inhibitors should be administered at least 4 hours 
before and 8 hours after RO7119929. 


RO7119929—F. Hoffmann-La Roche Ltd
21/Protocol WP41377, Version 3
Co-medication known to be UGT1A9 and UGT1A1/1A3 inhibitors might increase the exposure of 
the active drug RO7117418 and should therefore be administered at least 4 hours before and 8 
hours after RO7119929.
The use of systemic anti-cancer therapy is prohibited during the study and for at least 21 days 
prior to initiation of study treatment, unless otherwise specified.
1.2
SCHEMATIC OF STUDY DESIGN
An overview of the study design is provided in Figure 1.
Figure 1
Overview of Study Design – Monotherapy Dose-Escalation and 
Pharmacodynamics Dose Expansion
BMBiomarker; CRMContinual reassessment method; DEDose-escalation; EWOCEscalation 
with overdose control; MTDMaximum tolerated dose; PDPharmacodynamic; PoMProof of 
mechanism; QWWeekly; RDERecommended dose for expansion.
1.3
SCHEDULE OF ACTIVITIES
The schedule of the activities (SoA) is provided in Table 1. Pharmacokinetic and 
pharmacodynamic measurements for the dose escalation (Part A) and dose expansion (Part B) are 
provided in

Table 2 - detailed table for pharmacokinetic and pharmacodynamic measurements for dose 
escalation with flat dosing in Part A Schedule 1 (without tocilizumab pre-treatment) and 
Part A Schedule 3 (with tocilizumab pre-treatment) 

Table 3 - detailed table for pharmacokinetic and pharmacodynamic measurements for dose 
expansion with flat dosing in Part B Schedule 1 (without tocilizumab pre-treatment) and 
Part B Schedule 3 (with tocilizumab pre-treatment)

Table 4 - detailed table for pharmacokinetic and pharmacodynamic measurements for dose 
escalation with step-up dosing in Part A Schedule 2 

Table 5 – detailed table for pharmacokinetic and pharmacodynamic measurements for dose 
expansion with step-up dosing in Part B Schedule 2 


RO7119929—F. Hoffmann-La Roche Ltd
22/Protocol WP41377, Version 3
Table 1
Schedule of Activities for Part A and Part B
Cycle (21 Days)
Screening/Baseline
Cycles 1-2
Cycles 3-4
Cycles 
5+
EOTV or 
EDV
Safety 
follow-up 
visit
Long-term 
follow-up 
assessment
Day1
D-28 to D-1
D 1
D 2
D 8
D 
15
D 1
D 8
D 
15
D 1
Within 28 
days after 
last study 
drug
60 days after 
last study 
drug
Every 90 
days after 
last study 
drug
Time window
2 h
2
1 d 1 d 1 d 1 d 1 d
2 d
5 d
7 d
Eligibility and informed consent
x
Medical history3
x
Physical examination4,5
x
x
x
x
x
x
x
x
Vital signs6
x
x
x
x
x
x
x
x
x
x
x
24-h hospitalization for Schedules 1 
and 37
x
24-h hospitalization for Schedule 27
x
x 
Height (at screening only) and weight
x
x
x
x
x
x
ECOG performance status5
x
x
x
x
x
x
Triplicate 12-lead ECG8
x
x
x
x
x
x
x
x
Echocardiogram/MUGA9,10
x
x
x
x
Eye examination10, 11
x
x
x
EGD (participants with HCC only) 12
x
Child-Pugh Score (participants with 
HCC only)
x
Hematology5,10,13
x within D-7 and D-1
x
x
x
x
x
x
x
x
x
Serum chemistry5,10,14
x
x
x
x
x
x
x
x
x
x
x
Myocardial markers5,10,15
x
x
x
x
x
x
Coagulation (INR, PT, and aPTT)5,10
x
x
x
x
x
x
x
x
x
x
Thyroid function5,10,16
x
x
x
AFP testing (participants with HCC 
only)5,10
x
x
x
x
x
Autoimmune panel5,10,17
x
x
Urinalysis (glucose, protein, and 
urobilinogen)5,10
x
x18
x18
x18
x
x


RO7119929—F. Hoffmann-La Roche Ltd
23/Protocol WP41377, Version 3
Table 1
Schedule of Activities for Part A and Part B (cont.)
Cycle (21 Days)
Screening/Baseline
Cycles 1-2
Cycles 3-4
Cycles 
5+
EOTV or 
EDV
Safety 
follow-up 
visit
Long-term 
follow-up 
assessment
Day1
D-28 to D-1
D 1
D 2
D 8
D 
15
D 1
D 8
D 
15
D 1
Within 28 
days after 
last study 
drug
60 days after 
last study 
drug
Every 90 
days after 
last study 
drug
Time window
2 h
2
1 d 1 d 1 d 1 d 1 d
2 d
5 d
7 d
HIV, hepatitis B/C serology 5,10,19
x
x
HBV, HCV viral load20
x
x
x
x
x
Pregnancy testing21
x
x
x
x
x
Radiological tumor assessment10
x
Every 6 weeks following initiation of study treatment 
22
x
RO7119929 administration23
x
x
x
x
x
x
x24
Pre-medication (Cycle 1 only)
x
x
x
Tocilizumab pre-treatment for 
Schedule 325
x
(x)
PK and PD/biomarker blood samples 
(Part A and B), and fresh tumor 
biopsies (Part B)
see Table 2 for Part A - Schedules 1 and 3, Table 3 for Part B Schedules 1 and 3, Table 4 for Part A Schedule 2, 
and Table 5 for Part B Schedule 2
Archival tumor tissue
x26
Adverse events
x
x
x
x
x
x
x
x
x
x
x
x27
Concomitant medication
x
x
x
x
x
x
x
x
x
x
x
Anti-cancer therapies28
x
x
Survival28
x
AFPAlpha-fetoprotein; aPTTActivated partial thromboplastin time; C=cycle; CRS= Cytokine release syndrome; d/Dday; ECGElectrocardiogram; ECOG
Eastern Cooperative Oncology Group; eCRF=electronic case report form; EGDesophagogastroduodenoscopy; EOTVEnd of Treatment Visit; EDVEarly 
Discontinuation Visit; HBV=hepatitis B virus, HCC=hepatocellular carcinoma; HCV=hepatitis C virus; HIVHuman immunodeficiency virus; h=hours; 
INRInternational normalized ration; MUGAMultigated acquisition scan; PDPharmacodynamic; PKPharmacokinetic; PTProthrombin time.


RO7119929—F. Hoffmann-La Roche Ltd
24/Protocol WP41377, Version 3
Table 1
Schedule of Activities for Part A and Part B (cont.)
1.
Clinic visits are completed at the specified time points. If there is suspicion of disease progression based on clinical or laboratory findings before the next 
scheduled visit, an unscheduled visit should be performed. For PK and PD measurements during unscheduled visits, see Table 2 for Part A Schedules 1 and 
3, Table 3 for Part B Schedules 1 and 3, Table 4 for Part A Schedule 2, and Table 5 for Part B Schedule 2.
2.
The assessments on D2 will be performed 24 h after drug administration on D1, with a time window of 2 h.
3.
Medical history includes: demographics, history of malignancy, previous treatment(s) for malignancy, concomitant diseases, previous surgeries, 
medication, allergies, reproductive status, alcohol consumption, and smoking habits.
4.
Assessments include: cardiovascular, respiratory, gastrointestinal, dermatological, neurological, and musculoskeletal systems and head, eyes, ears, nose, 
throat, neck and lymph nodes. Examination of other body systems may be performed at the Investigator’s discretion. New or worsened abnormalities 
should be recorded as AEs, if appropriate.
5.
Limited physical examination and local laboratory assessments may be obtained ≤48 hours before Day 1/8/15 of each cycle, if applicable. Local laboratory 
assessments must be reviewed prior to study treatment administration for each cycle.
6.
Obtain vital signs (systolic and diastolic blood pressure, heart rate, temperature, respiratory rate, and oxygen saturation)
For Schedules 1 and 3:
during C1D1: Pre-dose (within 2h), 0.25h, 0.5h (both 5 min), 1h, 1.5h, 2h, 3h, 4h (all 15 min), 5h, 6h, 7h, 8h, 12h, 16h, 20h (all 30 min), 24h (2h); 
during C1D8, D15 and C2D1: Pre-dose (within 2h), 1h, 2h, 3h, 4h (all 15 min), 5h, 6h, 7h, 8h (all 30 min);
during C2D8, D15 and Cycles 3 and 4, Days 1, 8, and 15: Pre-dose (within 2h), 1h, 2h (both 15 min). 
In case of a second administration of prophylactic tocilizumab at C1D15, vital signs during C2D8 need to be obtained as follows: Pre-dose (within 2h), 1h, 2h, 3h, 4h (all 
15 min), 5h, 6h, 7h, 8h (all 30 min).
For Schedule 2:
during C1D1, C1D8, C2D1 and C2D15: Pre-dose (within 2h), 1h, 2h, 3h, 4h (all 15 min), 5h, 6h, 7h, 8h (all 30 min);
during C1D15: Pre-dose (within 2h), 0.25h, 0.5h (both 5 min), 1h, 1.5h, 2h, 3h, 4h (all 15 min), 5h, 6h, 7h, 8h, 12h, 16h, 20h (all 30 min), 24h (2h);  
during C2D8 and Cycles 3 and 4, Days 1, 8, and 15: Pre-dose (within 2h), 1h, 2h (both 15 min). 
For all Schedules:
For all following visits, vital signs should be measured pre-dose, if applicable. 
Additional monitoring may be required in case of CRS (see Section 8.3.9).
Oxygen saturation needs to be reported in addition to the other vital signs in case of CRS Grade ≥2 until complete resolution of symptoms or discharge of participant, 
whatever happens first.
7.
Mandatory 24-hour hospitalization: for Schedules 1 and 3 at C1D1 and C2D1; for Schedule 2 at C1D15 and C2D1.
8.
ECGs to be obtained: At screening, during C1D1, D8 and D15 and C2D1: pre-dose (within 2h), 1h, 2h, 4h (all 15 min) and 8h (30 min). For all following 
cycles, Day 1: pre-dose (within 2h). EOTV/EDV, Safety F/U. ECGs should be performed prior to blood draws for PK/PD samples at the same time point. 
Additional unscheduled ECG assessments should be performed in case of abnormalities and if clinical symptoms occur.
9.
Echocardiogram/MUGA to evaluate left ventricular ejection fraction (LVEF) will be performed during screening, at C3D1, at C5D1, and at EOTV/EDV. The 
acceptable time window is 1 week for on-treatment and end-of-treatment assessments. Does not need to be repeated at EOTV/EDV, if last 
echocardiogram/MUGA was performed within six weeks before visit. Additional unscheduled echocardiogram/MUGA assessments should be performed in 
case of abnormalities and if clinical symptoms occur. In case a MUGA scan is performed, the scan must be performed at least 3 days prior to C1D1 and 3 
days prior to the tumor biopsy to allow collection and immediate shipments of sensitive PD/biomarker samples (i.e. tumor biopsies, PD whole blood FACS). 


RO7119929—F. Hoffmann-La Roche Ltd
25/Protocol WP41377, Version 3
Table 1
Schedule of Activities for Part A and Part B (cont.)
10. Results of standard-of-care tests or examinations performed prior to obtaining informed consent and per protocol relevant window may be used for 
screening assessments rather than repeating such tests. Screening local laboratory assessments obtained ≤96 hours prior to the initiation of study 
treatment do not have to be repeated for C1D1. Test results should be reviewed prior to administration of study treatment.
11. Ophthalmological evaluation, including medical history (applicable at baseline) and physical examination related to eye disorders, visual acuity, visual field 
testing, and ophthalmoscopy (including dilated fundoscopy), will be performed during screening, every 3 months thereafter while participants are on 
treatment, at EOTV/EDV, and as clinically indicated. The acceptable time window is 2 weeks for on-treatment and end-of-treatment assessments. The 
examination does not need to be repeated at EOTV/EDV, if the last examination was performed within six weeks before visit.
12. For participants with HCC, an EGD should be performed to assess all size of varices (small to large) and to treat those per local standard of care prior to 
enrollment. Participants who have undergone an EGD within 6 months prior to initiation of study treatment do not need to repeat the procedure.
13. Complete blood count including RBC count, hemoglobin, hematocrit, WBC count with differential (neutrophils, eosinophils, lymphocytes, monocytes, 
basophils, and other cells), and platelet count.
14. Serum chemistry panel includes: total protein, albumin, total and direct bilirubin, AST, ALT, ALP, lipase, LDH, BUN or urea, creatinine, urate, CRP, 
calcium, phosphate, glucose, sodium, potassium, magnesium, bicarbonate and chloride.
For Schedule 2 only:
Serum chemistry panel not rquired at C1D2.
15. Myocardial markers will be measured at Screening, C1D1, C2D1, C3D1, C4D1, C5D1, EOTV/EDV, Safety F/U and when clinically indicated and include 
cardiac troponin I (cTnI) or cardiac troponin T (cTnT) and BNP or NT-proBNP with intra-participant consistency.
16. Thyroid function panel includes: TSH; in case of abnormal TSH: fT3 (or T3, if fT3 is not available), and fT4. It will be performed during screening, every 3 
months thereafter while participants are on treatment, at EOTV/EDV, and as clinically indicated.
17. Autoimmune panel includes: anti-nuclear antibodies (ANA) screen; only in case of a positive result in the ANA screen, anti-double-stranded DNA (dsDNA) 
antibodies, cytoplasmic anti-neutrophil cytoplasmic antibody (c-ANCA) and perinuclear anti-neutrophil cytoplasmic antibody (p-ANCA) need to be 
determined If one of these is positive, clinical work-up is needed to exclude any of the autoimmune diseases provided in the Exclusion Criteria.
18. Only to be performed if clinically indicated.
19. HIV, hepatitis B, and hepatitis C serology includes: anti-HIV-1 and anti-HIV2 (or anti-HIV-1/2), HBsAG, HBcAb, HBsAb, and anti-HCV.
20. PCR testing for viral (HBV and HCV) load to be performed at Screening for all participants. For participants with past or active HBV or past HCV infection fulfilling 
the criteria for study entry (see Section 5.1 and Section 5.2), PCR testing for viral load needs to be performed at Screening, on C2D1, C5D1, EOTV/EDV, 
and Safety F/U.
21. A serum pregnancy test will be performed at screening (within 7 days before the first study treatment administration on C1D1) and at the EOTV/EDV. In 
addition, a urine pregnancy test should be done every 3 weeks starting from C2D1, and as clinically indicated. If a urine pregnancy test is positive, it must 
be confirmed by a serum pregnancy test.
22. Radiological tumor assessments of chest, abdomen, and pelvis (CAP) for measuring extent of disease (CT scan is preferred method) will be done at 
screening, every 6 weeks following initiation of study treatment, and at EOTV/EDV. All known sites of disease documented at screening should be 
reassessed at each subsequent tumor evaluation. Results must be reviewed by the Investigator before dosing the next cycle. A 7-days window is allowed 
for all tumor assessments. Comparison to baseline will be done by RECIST v1.1 and by iRECIST. In the absence of tumor progression, tumor 
assessments should continue regardless of whether participants discontinue study treatment, unless the participant starts subsequent anti-cancer 
treatment, dies, withdraws consent, or the study is terminated by the Sponsor, whichever occurs first.
23. Step-up doses for RO7119929 under Schedule 2 are defined in Section 4.1.1.1.2. In case drug was not administered as planned during step-up dosing dose levels should 
not be skipped and continuation of step-up dosing should be agreed between the Investigator and the Medical Monitor.


RO7119929—F. Hoffmann-La Roche Ltd
26/Protocol WP41377, Version 3
Table 1
Schedule of Activities for Part A and Part B (cont.)
24. RO7119929 will continue to be administered once weekly. If there is no visit scheduled, the drug will be administered by the participant at home.
25. Tocilizumab pre-treatment for Schedule 3 is described in Section 4.1.1.1.3.
26. Archival tumor tissue will be accepted from any time point prior to first dosing.
27. Only SAEs deemed related to RO7119929 by the Investigator are reportable outside the safety reporting period of 60 days after last study drug.
28. Every 3 months the sites will provide to the Sponsor with an update on survival status of each participant enrolled in the study. Post-study anti-cancer 
therapies should be collected and reported as appropriate in the eCRF.


RO7119929—F. Hoffmann-La Roche Ltd
27/Protocol WP41377, Version 3
Table 2
Detailed Schedule of Activities for Pharmacokinetic and Pharmacodynamic Measurements for Dose 
Escalation with Flat Dosing in Part A Schedules 1 and 3 (Without and With Tocilizumab Pre-treatment) 
Cycle 
(21 days)
Day
Scheduled 
time (h)
Time
window
RO7119929
PK
plasma 
PD 
plasma 
(safety)
PD 
plasma
PD 
blood 
(RNA)
PD 
blood 
(DNA) 
Blood 
(DNA)
RBR 
(DNA/ 
RNA
Tocilizu-
mab
PK
serum2
Tocilizu-
mab
ADA2
Tocilizu-
mab
serum IL-6 
PD 
markers2
Screening/
Baseline
D-28 to D-1
Cycle 1
Day 1
Tocilizumab
Predose
(within 
24 hours 
prior to 
Tocilizu
mab 
administr
ation)
x
x
x
RO7119929
Predose
x
x
x
x
x
x
x
0.25
± 5 min
x
0.5
± 5 min
x
1
± 10 min
x
1.5
± 15 min
x
2
± 15 min
x
x
x
x
3
± 15 min
x
4
± 15 min
x
x
x
5
± 15 min
x
6
± 30 min
x
x
x
x
8
± 30 min
x
12
± 30 min
x
x
x
x
Day 2
24
± 2h
x
x
x
x
x
x
301
± 2h
x
x
x
Day 153
RO7119929 
Predose
x
x
x
x
2
± 15 min
x
x
x
x
8
± 30 min
x
x
x
x


RO7119929—F. Hoffmann-La Roche Ltd
28/Protocol WP41377, Version 3
Table 2
Table 2 Detailed Schedule of Activities for Pharmacokinetic and Pharmacodynamic Measurements for 
Dose Escalation with Flat Dosing in Part A Schedules 1 and 3 (Without and With Tocilizumab Pre-treatment)
(cont.)
Cycle 
(21 days)
Day
Scheduled 
time (h)
Time
window
RO7119929
PK
plasma 
PD 
plasma 
(safety)
PD 
plasma
PD 
blood 
(RNA)
PD 
blood 
(DNA) 
Blood 
(DNA)
RBR 
(DNA/ 
RNA
Tocilizu-
mab
PK
serum2
Tocilizu-
mab
ADA2
Tocilizu-
mab
serum IL-6 
PD 
markers2
Cycle 24
Day 1
RO7119929 
Predose
x
x
x
x
0.25
± 5 min
x
0.5
± 5 min
x
1
± 10 min
x
1.5
± 15 min
x
2
± 15 min
x
x
x
x
3
± 15 min
x
4
± 15 min
x
5
± 15 min
x
6
± 30 min
x
x
x
x
8
± 30 min
x
12
± 30 min
x
x
x
x
Day 2
24
± 2h
x
x
x
x
x
301
± 2h
x
x
x
EOTV/EDV
x
x
x
Unscheduled 
Visits5
x
x
x
x


RO7119929—F. Hoffmann-La Roche Ltd
29/Protocol WP41377, Version 3
Table 2
Table 2 Detailed Schedule of Activities for Pharmacokinetic and Pharmacodynamic Measurements for 
Dose Escalation with Flat Dosing in Part A Schedules 1 and 3 (Without and With Tocilizumab Pre-treatment)
(cont.)
1.
The 30 h time point for PK and PD sampling may be omitted in the course of the study subject to emerging PK data.
2.
Tocilizumab PK, ADA, and serum IL-6 PD (includes IL-6 and soluble IL-6R samples) to be taken only for Schedule 3 (with tocilizumab pre-treatment). 
3.
Based on review of emerging safety data with the single dose of tocilizumab pre-treatment, the Sponsor, in consultation with the investigators, may recommend an 
additional dose of tocilizumab be instituted prior to the C1D15 dose of RO7119929. In this case, tocilizumab PK, ADA, and serum IL-6 PD (includes IL-6 and soluble IL-
6R) samples will need to be taken at tocilizumab predose (24 hours prior to the second tocilizumab administration) and tocilizumab PK and serum IL-6 PD samples after 
6h (±30 minutes) and at Day 8 (±4 hours) after the second tocilizumab infusion. 
4.
In case no drug is administered on C2D1, all assessments planned for that day will be delayed to after the next drug administration.
5.
Unscheduled PK, PD plasma, PD plasma (safety), and PD blood (RNA) samples will be taken at the time of development of any of the following events or at 
the earliest possible time thereafter: DLT event, dose reduction or treatment interruption due to AEs with CTCAE Grade 3 or CRS Grade 2 severity, 
clinically significant changes in ECGs, echocardiogram/MUGA or myocardial marker levels, such as troponin or pro-BNP levels, disease response (i.e., first 
time point of partial response or complete response), and disease progression. If the EOTV/EDV coincides with an Unscheduled Visit as defined above, only the 
assessments for an Unscheduled Visit need to be performed.


RO7119929—F. Hoffmann-La Roche Ltd
30/Protocol WP41377, Version 3
Table 3
Detailed Schedule of Activities for Pharmacokinetic and Pharmacodynamic Measurements for Dose 
Expansion With Flat Dosing in Part B Schedules 1 and 3 (Without and With Tocilizumab Pre-treatment)
Cycle 
(21 days)
Day
Schedul
ed time 
(h)
Time
window
RO711992
9
PK
plasma 
PD 
plasma 
(safety)
PD 
plasma
PD 
blood 
(RNA)
PD 
whole 
blood 
(FACS)
Fresh 
tumor 
biopsy 
(mandat
ory)
PD 
blood 
(DNA) 
Blood 
(DNA)
RBR 
(DNA/ 
RNA
Tocili-
zumab
PK
serum
2
Tocili-
zumab
ADA2
Tociliz
u-mab
serum 
IL-6 PD 
marker
s2
Screening/
Baseline
D-28 to 
D-1
x
Cycle 1
Day 1
Tocilizu
mab
Predose
(within 24 
hours prior 
to 
Tocilizuma
b 
administrat
ion)
x
x
x
RO7119
929
Predose
x
x
x
x
x
x
x
x
0.25
± 5 min
x
0.5
± 5 min
x
1
± 10 min
x
1.5
± 15 min
x
2
± 15 min
x
x
x
x
3
± 15 min
x
4
± 15 min
x
x
x
5
± 15 min
x
6
± 30 min
x
x
x
x
8
± 30 min
x
12
± 30 min
x
x
x
x
Day 2
24
± 2h
x
x
x
x
x
x
301
± 2h
x
x
x


RO7119929—F. Hoffmann-La Roche Ltd
31/Protocol WP41377, Version 3
Table 3
Table 3 Detailed Schedule of Activities for Pharmacokinetic and Pharmacodynamic Measurements for 
Dose Expansion With Flat Dosing in Part B Schedules 1 and 3 (Without and With Tocilizumab Pre-treatment)
(cont.)
Cycle 
(21 days)
Day
Schedul
ed time 
(h)
Time
window
RO711992
9
PK
plasma 
PD 
plasma 
(safety)
PD 
plasma
PD 
blood 
(RNA)
PD 
whole 
blood 
(FACS)
Fresh 
tumor 
biopsy 
(mandat
ory)
PD 
blood 
(DNA) 
Blood 
(DNA)
RBR 
(DNA/ 
RNA
Tocili-
zumab
PK
serum
2
Tocili-
zumab
ADA2
Tociliz
u-mab
serum 
IL-6 PD 
marker
s2
Cycle 1
Day 8
RO7119
929 
Predose
x
Day 153
RO7119
929 
Predose
x
x
x
x
x
2
± 15 min
x
x
x
x
8
± 30min
x
x
x
x
Cycle 24
Day 1
RO7119
929 
Predose
x
x
x
x
x
0.25
± 5 min
x
0.5
± 5 min
x
1
± 10 min
x
1.5
± 15 min
x
2
± 15 min
x
x
x
x
3
± 15 min
x
4
± 15 min
x
5
± 15 min
x
6
± 30 min
x
x
x
x
8
± 30 min
x
12
± 30 min
x
x
x
x
Day 2
24
± 2h
x
x
x
x
x
x
301
± 2h
x
x
x
Day 8
Predose
x
Day 15
Predose
x
EOTV / EDV
x
x
x
Unschedule
d Visit5
x
x
x
x


RO7119929—F. Hoffmann-La Roche Ltd
32/Protocol WP41377, Version 3
Table 3
Table 3 Detailed Schedule of Activities for Pharmacokinetic and Pharmacodynamic Measurements for 
Dose Expansion With Flat Dosing in Part B Schedules 1 and 3 (Without and With Tocilizumab Pre-treatment)
(cont.)
1.
The 30 h time point for PK and PD sampling may be omitted in the course of the study subject to emerging PK data.
2.
Tocilizumab PK, ADA, and serum IL-6 PD (includes IL-6 and soluble IL-6R) samples to be taken only for Schedule 3 (with tocilizumab pre-treatment)
3.
Based on review of emerging safety data with the single dose of tocilizumab pre-treatment, the Sponsor, in consultation with the investigators, may recommend an 
additional dose of tocilizumab be instituted prior to the C1 D15 dose of RO7119929. In this case, tocilizumab PK, ADA, and serum IL-6 PD (includes IL-6 and soluble 
IL-6R) samples will need to be taken at tocilizumab predose (24 hours prior to the second tocilizumab administration) and tocilizumab PK and serum IL-6 PD samples 
after 6h (± 30 minutes) and at Day 8 (± 4 hours) after the second tocilizumab infusion.  
4.
Fresh biopsies are mandatory to be taken from the hepatic tumor lesion. In case no drug is administered on C2D1, the mandatory biopsy and all 
assessments planned for that day will be delayed to after the next drug administration. 
An additional (optional) biopsy at the time of disease progression, partial response, stable disease, or at any other time point of interest based on 
participant’s course of disease may be taken after discussion between the Investigator and the Sponsor to aid the understanding of the resistance 
mechanisms.
5.
Unscheduled PK, PD plasma, PD plasma (safety), and PD blood (RNA) samples will be taken at the time of development of any of the following events or at 
the earliest possible time thereafter: DLT event, dose reduction or treatment interruption due to AEs with CTCAE Grade 3 or CRS Grade 2 severity, 
clinically significant changes in ECGs, echocardiogram/MUGA or myocardial marker levels, such as troponin or pro-BNP levels, disease response (i.e., first 
time point of partial response or complete response), and disease progression. If the EOTV/EDV coincides with an Unscheduled Visit as defined above, only the 
assessments for an Unscheduled Visit need to be performed.


RO7119929—F. Hoffmann-La Roche Ltd
33/Protocol WP41377, Version 3
Table 4
Detailed Schedule of Activities for Pharmacokinetic and Pharmacodynamic Measurements for Dose Escalation 
with Step-up Dosing in Part A Schedule 2
Cycle (21 days)
Day
Scheduled time 
(h)
Time 
window
PK plasma 
PD plasma 
(safety)
PD plasma
PD blood 
(RNA)
PD blood 
(DNA) 
Blood 
(DNA)
RBR 
(DNA/ 
RNA)
Screening/ 
Baseline
D-28 to D-1
Cycle 1
Day 1
Predose
x
x
x
x
x
x
x
Day 15
Predose
x
x
x
x
0.25
± 5 min
x
0.5
± 5 min
x
1
± 10 min
x
1.5
± 15 min
x
2
± 15 min
x
x
x
x
3
± 15 min
x
4
± 15 min
x
5
± 15 min
x
6
± 30 min
x
x
x
x
8
± 30 min
x
12
± 30 min
x
x
x
x
Day 16
24
± 2h
x
x
x
x
301
± 2h
x
x
x


RO7119929—F. Hoffmann-La Roche Ltd
34/Protocol WP41377, Version 3
Table 4
Detailed Schedule of Activities for Pharmacokinetic and Pharmacodynamic Measurements for Dose Escalation 
with Step-up Dosing in Part A Schedule 2 (cont.)
Cycle (21 days)
Day
Scheduled time (h)
Time window
PK plasma 
PD plasma 
(safety)
PD plasma
PD blood 
(RNA)
PD blood 
(DNA) 
Blood 
(DNA)
RBR 
(DNA/ 
RNA)
Cycle 22
Day 1
Predose
x
x
x
x
0.25
± 5 min
x
0.5
± 5 min
x
1
± 10 min
x
1.5
± 15 min
x
2
± 15 min
x
x
x
x
3
± 15 min
x
4
± 15 min
x
5
± 15 min
x
6
± 30 min
x
x
x
x
8
± 30 min
x
12
± 30 min
x
x
x
x
Day 2
24
± 2h
x
x
x
x
x
301
± 2h
x
x
x
Day 15
Predose
x
x
x
x
2
± 15 min
x
x
x
x
8
± 30 min
x
x
x
x
EOTV / EDV
x
x
Unscheduled 
Visits3
x
x
x
x
1.
The 30 h time point for PK and PD sampling may be omitted in the course of the study subject to emerging PK data.
2.
In case no drug is administered on C2D1, all assessments planned for that day will be delayed to after the next drug administration
3.
Unscheduled PK, PD plasma, PD plasma (safety), and PD blood (RNA) samples will be taken at the time of development of any of the following events or at the earliest 
possible time thereafter: DLT event, dose reduction or treatment interruption due to AEs with CTCAE Grade 3 or CRS Grade 2 severity, clinically significant changes 
in ECGs, echocardiogram/MUGA or myocardial marker levels, such as troponin or pro-BNP levels, disease response (i.e., first time point of partial response or complete 
response), and disease progression.
If the EOTV/EDV coincides with an Unscheduled Visit as defined above, only the assessments for an Unscheduled Visit need to be performed.


RO7119929—F. Hoffmann-La Roche Ltd
35/Protocol WP41377, Version 3
Table 5
Detailed Schedule of Activities for Pharmacokinetic and Pharmacodynamic Measurements for Dose Expansion 
with Step-up Dosing in Part B Schedule 2
Cycle 
(21 days)
Day
Scheduled time (h)
Time
window
PK 
plasma 
PD 
plasma 
(safety)
PD 
plasma
PD 
blood 
(RNA)
PD 
whole 
blood 
(FACS)
Fresh 
tumor 
biopsy 
(mandat
ory)
PD 
blood 
(DNA)
Blood 
(DNA)
RBR 
(DNA  
/RNA)
Screening/ 
Baseline
D-28 to 
D-1
x
Cycle 1
Day 1
Predose
x
x
x
x
x
x
x
x
Day 8
Predose
x
Day 15
Predose
x
x
x
x
x
0.25
± 5 min
x
0.5
± 5 min
x
1
± 10 min
x
1.5
± 15 min
x
2
± 15 min
x
x
x
x
3
± 15 min
x
4
± 15 min
x
5
± 15 min
x
6
± 30 min
x
x
x
x
8
± 30 min
x
12
± 30 min
x
x
x
x
Day 16
24
± 2h
x
x
x
x
301
± 2h
x
x
x


RO7119929—F. Hoffmann-La Roche Ltd
36/Protocol WP41377, Version 3
Table 5
Detailed Schedule of Activities for Pharmacokinetic and Pharmacodynamic Measurements for Dose Expansion 
with Step-up Dosing in Part B Schedule 2 (cont.)
Cycle 
(21 days)
Day
Scheduled time (h)
Time
window
PK 
plasma 
PD 
plasma 
(safety)
PD 
plasma
PD 
blood 
(RNA)
PD 
whole 
blood 
(FACS)
Fresh 
tumor 
biopsy 
(mandat
ory)
PD 
blood 
(DNA)
Blood 
(DNA)
RBR 
(DNA  
/RNA)
Cycle 22
Day 1
Predose
x
x
x
x
x
0.25
± 5min
x
0.5
± 5min
x
1
± 10min
x
1.5
± 15min
x
2
± 15min
x
x
x
x
3
± 15min
x
4
± 15min
x
5
± 15min
x
6
± 30min
x
x
x
x
8
± 30min
x
12
± 30 min
x
x
x
x
Day 2
24
± 2h
x
x
x
x
x
x
301
± 2h
x
x
x
Day 8
Predose
x
Day 15
Predose
x
x
x
x
x
2
± 15 min
x
x
x
x
8
± 30 min
x
x
x
x
EOTV / EDV
x
x
Unscheduled 
Visit3
x
x
x
x


RO7119929—F. Hoffmann-La Roche Ltd
37/Protocol WP41377, Version 3
Table 5
Detailed Schedule of Activities for Pharmacokinetic and Pharmacodynamic Measurements for Dose Expansion 
with Step-up Dosing in Part B Schedule 2 (cont.)
1.
The 30 h time point for PK and PD sampling may be omitted in the course of the study subject to emerging PK data. 
2.
Fresh biopsies are mandatory to be taken from the hepatic tumor lesion. In case no drug is administered on C2D1, the mandatory biopsy and all assessments planned for 
that day will be delayed to after the next drug administration. An additional (optional) biopsy at the time of disease progression, partial response, stable disease, or at any 
other time point of interest based on participant’s course of disease may be taken after discussion between the Investigator and the Sponsor to aid the understanding of the 
resistance mechanisms.       
3.
Unscheduled PK, PD plasma, PD plasma (safety), and PD blood (RNA) samples will be taken at the time of development of any of the following events or at the earliest 
possible time thereafter: DLT event, dose reduction or treatment interruption due to AEs with CTCAE Grade 3 or CRS Grade 2 severity, clinically significant changes 
in ECGs, echocardiogram/MUGA or myocardial marker levels, such as troponin or pro-BNP levels, disease response (i.e., first time point of partial response or complete 
response), and disease progression. If the EOTV/EDV coincides with an Unscheduled Visit, as defined above, only the assessments for an Unscheduled Visit need to be 
performed.


RO7119929—F. Hoffmann-La Roche Ltd
38/Protocol WP41377, Version 3
2.
INTRODUCTION
2.1
STUDY RATIONALE
The management of most advanced solid tumors remains challenging as only a small 
proportion of patients respond to standard of care therapy, and almost all patients 
progress on or after therapy. Cancer immunotherapy (CIT) with immune checkpoint 
inhibiting (CPI) monoclonal antibodies such as anti-programmed death-1 (PD-1)/anti-
programmed death-ligand 1 (PD-L1), has changed the treatment landscape in many 
cancer types, however, a majority of patients with metastatic disease do not derive 
benefit from this type of CIT, particularly those with non-inflamed (immune deserted or 
immune excluded) tumors (Hedge et al 2016).
Toll-like receptor (TLR) 7 is a member of the TLR family, which encompasses a group of
major regulators of the innate immune response (O’Neill et al 2013). TLR7 is an 
endosomal sensor of single-stranded RNA mainly expressed in hematopoietic cells, 
including plasmacytoid dendritic cells, macrophages, and B cells. TLR7 signals through 
MyD88, which results in a cytokine response (mainly IFN-α) and may promote an 
inflammatory microenvironment to foster effector T-cell activation and subsequent anti-
tumor immunity. Multiple TLR7 agonists have entered clinical development for various 
tumor types. To date, their efficacy in early phase clinical studies has been hampered by 
several issues, including poor tolerability due to strong systemic cytokine activation
(Dudek et al 2007, Chi et al 2017, Engel et al 2011).
RO7119929 is an orally administered prodrug of a TLR7 agonist. Conversion of 
RO7119929 to the active drug RO7117418 is mainly mediated through CYP2C9 and 
CYP2C19 metabolism. A predominantly hepatic activation is anticipated, based on the 
expression profile of these cytochromes as well as in vitro data generated in human 
hepatocytes and enterocytes demonstrating selective conversion in the liver. Together 
with a low solubility of the active drug RO7117418, this supports a rationale for 
evaluating tumors with predominant hepatic localization. The orally available prodrug 
approach may allow for an effective TLR7-mediated reprogramming of the immune 
microenvironment in the liver while limiting systemic immune effects.
WP41377 is a phase I study of RO7119929 given orally to participants with unresectable 
advanced or metastatic primary liver cancers (i.e., hepatocellular carcinoma [HCC],
fibrolamellar HCC), intra-hepatic and perihilar biliary tract cancer (BTC) (i.e., intrahepatic 
cholangiocarcinoma [iCC], Klatskin tumor) and other solid tumors with predominant liver
involvement. The primary objective of the study is to explore the safety and to determine 
the maximum tolerated dose (MTD) and/or optimal biologic dose (OBD) of RO7119929 
as single agent.
The rationale for the study design is provided in Section 4.2.
2.2
BACKGROUND
RO7119929, an orally administered prodrug of a TLR7specific agonist, is being 
developed for the treatment of patients with solid tumors, which have predominantly liver 
involvement. 


RO7119929—F. Hoffmann-La Roche Ltd
39/Protocol WP41377, Version 3
A detailed description on the background of disease, current therapies, unmet medical
needs as well as a description of the chemistry, pharmacology, and safety of 
RO7119929 is provided in the Investigator’s Brochure. 
2.3
BENEFIT/RISK ASSESSMENT
Clinical benefit from CIT with CPI monoclonal antibodies such as anti-PD-1/PD-L1 and 
anti-cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) is predominantly observed in 
a subset of patients with immunogenic or inflamed tumors. In order to broaden the 
patient population that responds to immunotherapy, immune cell-activating compounds 
are required to generate a pro-inflammatory tumor micro-environment and sustain 
immune responses. 
TLR7 agonists have been tested in various preclinical and clinical investigations. They 
stimulate innate immune cells leading to the activation of humoral and cellular immunity, 
thus engendering a series of anti-tumor activities (Chi et al 2017). Imiquimod (Aldara), a 
TLR7 agonist, was approved by the FDA for the topical treatment of skin cancers. 
However, when given systemically, TLR7 agonists have shown only modest clinical 
activity, mainly due to systemic immune activation leading to dose limiting toxicities 
(Dudek et al 2007, Gadd et al 2015, Engel et al 2011).
RO7119929 is a pro-drug that is converted to the active drug RO7117418 primarily in 
the liver. RO7117418 stimulates TLR7 positive cells within the liver and tumor, resulting 
in a cytokine response and promoting an inflammatory microenvironment to foster 
effector T-cell activation and subsequent anti-tumor immunity. In preclinical models, the
TLR7 agonist demonstrated strong pharmacodynamic (PD) effects consistent with the 
postulated mode of action (MoA) and exerted anti-tumor activity as single agent and 
particularly in combination with a CPI. 
Due to the pro-drug design, RO7119929 is hypothesized to achieve high levels of 
inflammation at the site of liver tumors, while effectively limiting systemic immune 
activation.
Potential and identified risks for RO7119929 are detailed in the Investigator’s Brochure.
These potential and identified risks have been taken into account in the safety measures 
for this study, which include the definition of strict eligibility criteria (Section 5), dose-
limiting toxicities (DLTs; Section 8.3.7), rules for treatment interruption and withdrawal 
from study (Section 7), and recommendations for the prophylaxis and the management 
of specific adverse events (AE; Section 8.3.8).
For participants in Part B of the study, the collection of mandatory baseline and on-
treatment tumor samples from hepatic lesions will permit an assessment of the PD 
effects of RO7119929. In order to mitigate the potential risk associated with this 
procedure, all participants must have – according to inclusion criteria for Part B – tumor 
manifestations from which biopsies can safely be obtained. In order to reduce the risk of 
bleeding, adequate coagulation is required for entry into the study (see Section 5.1). 


RO7119929—F. Hoffmann-La Roche Ltd
40/Protocol WP41377, Version 3
After the biopsies are taken, participants will be monitored adequately to further mitigate
the risk of unobserved bleeding.
In conclusion, the TLR7 agonist RO7119929 presents an opportunity to boost the 
immune response in patients with primary and secondary liver cancers in an effort to 
contribute to better clinical outcomes. The non-clinical and clinical data sets for 
RO7119929 in conjunction with the planned safety monitoring and management 
guidance provide an acceptable risk-benefit balance for the clinical investigation of 
RO7119929 in advanced cancer patients for whom no effective standard therapy exists.
More detailed information about the known and expected benefits in the context of 
potential risks and reasonably expected adverse events of RO7119929 is provided in the 
Investigator’s Brochure. 
COVID-19 Benefit/Risk Assessment
In the setting of the coronavirus disease 2019 (COVID-19) pandemic, patients with comorbidities 
(including those with liver cancer) are a more vulnerable population. Infection with severe acute 
respiratory syndrome coronavirus 2 (SARS-CoV-2) has been associated with higher morbidity 
and mortality in patients with cancer in some retrospective analyses (Liang et al 2020, Guan et al 
2020). It is unclear how immunotherapy affects the incidence or severity of COVID-19. It is not 
anticipated that treatment with RO7119929 will increase the risk of infection with SARS-CoV-2. 
Severe COVID-19 is associated with cytokine release syndrome (CRS) involving the 
inflammatory cytokines IL-6, IL-10, IL-2, and interferon-gamma (Merad and Martin 2020). 
Based on the anticipated mode of action of RO7119929, there may be a potential for an enhanced 
inflammatory response including CRS if a participant experiences SARS-CoV-2 infection while 
receiving RO7119929. Study WP413377 is currently ongoing during this pandemic and, 
although the number of enrolled participants is small, no increased risk of developing COVID-19 
has been observed. 
3.
OBJECTIVES AND ENDPOINTS
The objectives and corresponding endpoints are provided in Table 6.
Table 6
Objectives and Endpoints
Objectives
Endpoints
Primary

To evaluate safety and tolerability of 
RO7119929 (prodrug) in participants with 
solid tumors with predominant liver 
involvement with and without tocilizumab 
pre-treatment

To determine the maximum tolerated dose 
(MTD) and/or optimal biologic dose (OBD)

Nature and frequency of dose-limiting 
toxicities

Incidence, nature and severity of 
adverse event according to NCI CTCAE 
v5.0


RO7119929—F. Hoffmann-La Roche Ltd
41/Protocol WP41377, Version 3
Objectives
Endpoints
for RO7119929 with and without tocilizumab
pre-treatment
Secondary

To evaluate the PK profile of RO7119929 
and RO7117418 (active drug) following 
oral administration of RO7119929 in 
participants with solid tumors with 
predominant liver involvement

To evaluate the effect of food on 
pharmacokinetics of RO7119929 and 
RO7117418 after administration of 
RO7119929 in participants with solid 
tumors with predominant liver involvement

PK parameters such as Cmax, Tmax, AUC, 
T1/2 for RO7119929 and RO7117418 
following administration of RO7119929 

Effect of a meal on PK parameters such 
as Cmax, Tmax, AUC, T1/2 for RO7119929 
and RO7117418 following administration 
of RO7119929 compared to fasting 
conditions

To evaluate peripheral blood for 
biomarkers to support optimal biological 
dose and schedule selection

Change in inflammatory PD biomarkers
in peripheral blood such as IFN-α and 
ISGs

To assess preliminary clinical activity of 
RO7119929 administration in participants 
with solid tumors with predominant liver 
involvement

Objective response rate (ORR) 

Disease control rate (DCR)

Duration of response (DOR)

Progression-free survival
All of the above will be evaluated according 
to RECIST v1.1.

Overall survival

To assess preliminary clinical activity 
signals of RO7119929 administration in 
participants with solid tumors with 
predominant liver involvement with respect 
to liver lesions only

ORR

DCR

DOR
All of the above will be evaluated according 
to RECIST v1.1 with respect to responses in 
liver lesions only.
Exploratory

To explore the relationship between PK 
and PD for RO7119929 with and without 
tocilizumab pre-treatment 

To explore the effect of polymorphisms 
and gender on PK, PD, and safety of 
RO7119929 and RO7117418 

Dependence of PD assessments in 
peripheral blood such as safety cytokines 
(e.g., IL-6, TNF-α), IFN-α, and ISGs on 
exposure to RO7117418

Dependence of PK and PD endpoints on 
polymorphisms (such as CYP2C9, 


RO7119929—F. Hoffmann-La Roche Ltd
42/Protocol WP41377, Version 3
Objectives
Endpoints

To explore the effect of hepatic function on 
PK, PD, and safety of RO7119929 and 
RO7117418
CYP2C19, UGT1A9, UGT1A1, and 
TLR7) and gender

Dependence of PK and PD endpoints on 
hepatic function

To evaluate biomarkers in peripheral blood 
and tumor tissue for response and safety 
prediction

Biomarker assessments in peripheral 
blood such as protein and RNA-based 
analysis

Biomarker assessments in archival 
and/or fresh pretreatment tumor tissue 
such as gene/protein expression of 
TLR7 and PD-L1, CYP genotype, and 
viral status (HBV and HCV)

To evaluate biomarkers in peripheral blood 
and tissue from paired tumor biopsies to 
demonstrate proof of mechanism

Biomarker assessments in peripheral 
blood such as activation of immune cell 
subsets

Biomarker assessments in paired tumor 
biopsies such as re-programming of the 
TME and T-cell infiltration and activation

To investigate the presence of 
RO7119929-derived metabolite(s) in 
plasma

To assess relative abundance and PK 
parameters of any metabolite as 
appropriate

PK parameters of circulating 
RO7119929-derived metabolite(s) 

To assess preliminary clinical activity of 
RO7119929 administration in participants 
with solid tumors with predominant liver 
involvement

ORR 

DCR

DOR

Progression-free survival 
All of the above will be evaluated according 
to immune RECIST (iRECIST).

To assess preliminary clinical activity 
signals of RO7119929 administration in 
participants with solid tumors with 
predominant liver involvement with respect 
to liver lesions only

ORR

DCR

DOR
All of the above will be evaluated according 
to iRECIST with respect to responses in liver 
lesions only.


RO7119929—F. Hoffmann-La Roche Ltd
43/Protocol WP41377, Version 3
Objectives
Endpoints

To assess preliminary clinical activity of 
RO7119929 administration on extra-
hepatic tumor manifestations in 
participants with measurable extra-hepatic 
disease

ORR according to RECIST v1.1 and 
according to iRECIST with respect to 
extra-hepatic tumor manifestations only.
Abbreviations: DCRDisease control rate; DORDuration of response; HBVhepatitis B virus; 
HCVhepatitis C virus; OBDOptimal biologic dose; ORRObjective response rate; 
PDPharmacodynamics; PKPharmacokinetics.
4.
STUDY DESIGN
4.1
OVERALL DESIGN
4.1.1
Study Overview
WP41377 is a first in human, open label, multi-center, multiple-ascending dose 
escalation, Phase I study consisting of two parts: Part A (dose escalation) and Part B 
(dose expansion). In addition, the effect of food intake on the pharmacokinetics (PK) of 
RO7119929 will be investigated.
RO7119929 will be administered weekly (QW) in 3-week cycles. Within Part A, three different 
schedules will be investigated: Schedule 1 (QW flat dosing), Schedule 2 (QW step-up dosing), 
and Schedule 3 (QW flat dosing with tocilizumab pre-treatment). Other treatment schedules 
may be explored, based on emerging data after amending the protocol accordingly. Part 
B may enroll up to three expansion cohorts at different doses and/or dosing schedules based on 
emerging clinical and PD data. 
If dose escalation cohorts (Part A) and dose expansion cohorts (Part B) are open in parallel, the 
Sponsor will decide where to enroll each participant. Depending on evolving data, these decisions 
might aim at enrichment of certain participant subgroups within the PD expansion cohorts, e.g., 
by selection for certain tumor types.
If two or more dose expansion cohorts are open in parallel, enrollment into these cohorts will be 
decided by randomization.
An overview of the study design is provided in Section 1.2.
4.1.1.1
Study Part A (Dose Escalation)
Part A of this study will define the MTD/RDE for different dosing schedules (see
Section 4.1.1.1.1, Section 4.1.1.1.2, and Section 4.1.1.1.3) by escalating doses of RO7119929 
as a single agent in adult patients with advanced or metastatic solid tumors with 
predominant liver involvement. Participants will be enrolled in cohorts with at least 3 
evaluable participants, treated in a staggered manner (at least 1 week between the first 
and second participant and at least 24 hours between subsequent participants). 
Treatment will consist of a screening period (Day -28 to Day -1), a treatment period
(Cycle 1 Day 1 to month 12; the length of the study may be modified based on emerging 
data), a time period following treatment discontinuation (concluded by an end of 
treatment visit [EOTV] within 28 days of last study drug, followed by a safety follow-up 
visit 60 days after last study drug), and post-treatment survival follow-up assessments 
every 3 months for up to 24 months. Safety assessments for DLT determination will be 


RO7119929—F. Hoffmann-La Roche Ltd
44/Protocol WP41377, Version 3
performed during the first 3 weeks (21 days) or 4 weeks (28 days), depending on schedule.
Drug administration during the treatment period will continue until disease progression, 
unacceptable toxicities, or withdrawal of the participant’s consent up to a maximum of 12
months or 17 cycles, whichever comes first. As with other immunotherapies, treatment 
beyond progressive disease according to the response evaluation criteria in solid tumors 
(RECIST v1.1) can be considered, if deemed in the best interest of the study participant
(see Section 7.1).
Dose escalation will be carried out according to a modified continual reassessment 
method (mCRM) with overdose control (mCRM-EWOC design). Dose escalation 
decisions and selection of the dose for the next cohort will be subject to clinical 
judgement by the Sponsor and the participating Investigators following review of all 
safety and available PK and/or PD data and not based solely on DLT information, while
guided by the CRM-EWOC recommendation. 
For exploring the effect of food intake on the PK of RO7119929 in Part A, participants will 
receive RO7119929 after a defined meal (see Section 5.3.1) at the time of first target dose 
(Cycle 1 Day 1 or Cycle 1 Day 15, depending on schedule) and following a 10-hour fast at 
Cycle 2 Day 1 enabling intra-participant comparison. For this pilot food effect (FE) study, 
a minimum of 6 evaluable participants will be enrolled across several cohorts. 
Participants who experience DLTs may be considered for continued study treatment at a 
reduced dose, following regression of toxicity to ≤ Grade 1 and a discussion with and 
agreement of the Sponsor (see Section 6.6).
Any of the Part A-schedules may be paused or halted prior to identification of MTD and 
upon sufficient characterization of the IMP in regards to safety, PK and/or PD.
4.1.1.1.1
Schedule 1 (Flat Dosing on a QW Schedule)
Within Schedule 1, RO7119929 will be administered QW at the same dose in 3-week cycles. 
During dose escalation, the dose will be determined using an mCRM-EWOC design (see 
Appendix 6). The DLT period will consist of the first 3 weeks (21 days), corresponding to the first 
cycle. 
The starting dose for the dose escalation will be 1 mg (see Section 4.3)
4.1.1.1.2
Schedule 2 (Step-up Dosing on a QW Schedule)
Within Schedule 2, RO7119929 will be administered QW in 3-week cycles with step-up dosing 
during Cycle 1 (see Figure 2). The dosing step at Cycle 1 Day 1 will be fixed at a dose level with 
minimal risk of CRS Grade 2, while the dosing step at Cycle 1 Day 8 will be fixed at a dose with 
an acceptable dose-toxicity profile guided by safety information in the flat dosing cohorts 
(Schedule 1). 
The target dose at Cycle 1 Day 15 will be determined using an mCRM-EWOC design (see 
Appendix 6). The target dose will then be administered QW during each subsequent cycle. The 
DLT period will consist of the first 4 weeks (28 days).
The starting dose at Cycle 1 Day 15 for Cohort 1 of the dose escalation will be identical to the 
dose administered at Cycle 1 Day 8.
For more information, see Section 4.2.5.


RO7119929—F. Hoffmann-La Roche Ltd
45/Protocol WP41377, Version 3
Figure 2
Dosing Schedule for Step-up Dosing
DDay; DLTDose-limiting toxicity; TLR7RO7119929; x,y,zdoses of increasing strength.
4.1.1.1.3
Schedule 3 (Flat dosing on a QW Schedule with Tocilizumab Pre-
treatment)
Within Schedule 3, RO7119929 will be administered QW at the same dose in 3-week cycles. 
Tocilizumab will be administered as pre-treatment on Cycle 1 Day 1, approximately 2 hours prior 
to RO7119929 administration. The benefit of a second dose of tocilizumab on Cycle 1 Day 15 
may be tested after agreement between the Sponsor and Investigators, if a significant number of 
participants had no signs of CRS or CRS Grade 1 at Cycle 1 Day 1 and/or Cycle 1 Day 8 but still 
experienced CRS 2 at Cycle 1 Day 15 and/or Cycle 2 Day 1 during dose escalation. If 
successful, this regimen will be used in future cohorts. 
The DLT period will consist of the first 3 weeks (21 days) and will be prolonged to the first 4 
weeks (28 days) in case of implementation of a second tocilizumab administration at Cycle 1 Day 
15. 
During dose escalation, the dose of RO7119929 will be determined using an mCRM-EWOC 
design (Appendix 6). The starting dose for the dose escalation will be 4 mg, a dose with an 
acceptable dose-toxicity profile in the flat dosing cohorts (Schedule 1).
For more information, see Section 4.2.5. 
4.1.1.2
Study Part B (Dose Expansion)
Following determination of MTD and/or RDE, treatment will commence at up to three 
different doses and/or dosing schedules (Section 4.1.1.1.1, Section 4.1.1.1.2, and 


RO7119929—F. Hoffmann-La Roche Ltd
46/Protocol WP41377, Version 3
Section 4.1.1.1.3) in specific expansion cohorts of participants for extended PD analysis, 
including collection of peripheral blood and mandatory paired tumor biopsies taken from 
the hepatic tumor manifestations to demonstrate proof of mechanism (PoM). 
Each expansion cohort will enroll approximately 10 PD-evaluable participants.
Participants with both available and evaluable tumor biopsy samples will be considered 
evaluable for the PD endpoint. If signs of relevant anti-tumor and/or PD activity are 
observed within Part A at dose levels below MTD, it may be decided to initiate Part B at 
this dose level and schedule (i.e., 1, 2, or 3) before Part A is complete after discussion and 
alignment between the Investigators and the Sponsor.
Treatment for all participants in Part B will consist of a screening period (Day -28 to Day 
-1), a treatment period (Cycle 1 Day 1 to month 12), a treatment discontinuation period 
(within 28 days of last study drug until EOTV), one safety follow-up visit and post-
treatment survival follow-up assessments. Drug administration during the treatment 
period will continue until disease progression, unacceptable toxicities, or withdrawal of 
the participant’s consent up to a maximum of 12 months. As with other 
immunotherapies, treatment beyond progressive disease according to RECIST v1.1 can 
be considered, if deemed in the best interest of the study participant (see Section 7.1).
The effect of food intake on PK data may be explored within Part B if less than
6 evaluable participants were included in Part A (see Section 4.1.1.1 and Section 5.3.1). 
4.1.2
Length of the Study
See “End of study definition” in Section 4.4.
4.1.3
Dose Escalation Decision Criteria
4.1.3.1
Dose Escalation in Part A
Dose escalation of RO7119929 will start with a dose of 1 mg in at least 
3 DLT-evaluable participants. The potential dose grid for dose administrations is from 
1 mg to 10 mg by 1 mg, from 10 mg to 20 mg by 2 mg, from 20 mg to 50 mg by 5 mg, 
from 50 mg to 150 mg by 10 mg, and from 150 mg to 250 mg by 25 mg. 
The decision to escalate to the next dose level is made when at least 3 participants in a 
cohort have completed the DLT period (21 days or 28 days, respectively, Section 4.1.1.1.1, 
Section 4.1.1.1.2, and Section 4.1.1.1.3), based on the review of all relevant safety 
information collected, including AEs, ECGs, vital signs, and clinical laboratory test 
results. In addition, available PK and PD data at the current and/or previous dose 
level(s) will be reviewed.
At each dose escalation step, the dose can be escalated or de-escalated and/or an 
additional cohort at that same dose level could be enrolled. The next dose level will be 
recommended by the EWOC design during the dose escalation phase and discussed 
and agreed by the Sponsor, the Investigators and any other person that the Investigator
considers necessary to assist with the decision. The Sponsor and Investigators will be 
able to overrule the EWOC design recommendation based on the data available.  


RO7119929—F. Hoffmann-La Roche Ltd
47/Protocol WP41377, Version 3
Built-in safety constraints are in place to prevent exposing participants to undue risk of 
toxicity, i.e., the maximum allowable dose-increment in absence of DLT will be 200% 
from 1 mg to 10 mg, 100% from above 10 mg to 60 mg, and 50% above 60 mg. 
Independent of these rules, if one DLT occurs, the increment is restricted to a maximum 
of 100% for all future dose steps. 
The maximum dose that will be explored is 250 mg, and the maximum allowable sample 
size is 60 participants for Part A, based on trial simulations using several hypothetical 
dose-toxicity profiles. 
Details of the dose escalation design including operating characteristics based on the 
trial simulations can be found in Appendix 6.
4.1.3.2
Dose Limiting Toxicity (DLT) Observation Period and DLT 
Criteria
A DLT is defined as a clinically significant AE (classified according to the National 
Cancer Institute Common Terminology Criteria for Adverse Events [NCI CTCAE] v.5.0) 
or significant laboratory abnormality 1) occurring during an assessment period of 21 days 
or 28 days after first dose of study treatment, respectively, and 2) is not attributed to 
disease progression, concomitant illness or another clearly identifiable cause.
Adverse events considered DLTs are listed in Table 7.
The following are not considered DLTs:

Toxicities fulfilling the DLT definition that occur outside of the DLT period will be 
considered for the determination of the overall tolerability and safety profile of 
RO7119929.

Alopecia (any Grade).

Grade 3 nausea, vomiting or diarrhea, including their clinical sequelae (e.g. fluid 
loss with subsequent dehydration, electrolyte loss occurring with sub-optimal 
prophylactic and curative treatment and that are responding to supportive care 
within 72 hours).

Grade 3 fatigue that resolves to Grade 2 within 7 days.

Grade 3 arthralgia that can be adequately managed with supportive care or that 
resolves to Grade 2 within 7 days.

Grade 3 tumor flare defined as local pain, irritation, or rash localized at sites of 
known or suspected tumor.

Grade 3 alanine aminotransferase (ALT) or aspartate aminotransferase (AST) 
elevation with the exception of cases suspicious of drug-induced liver injury as 
defined in Appendix 3, Section 6:
o
Treatment-emergent ALT or AST >3 x baseline value in combination with 
total bilirubin ≥2 x ULN (of which ≥35% is direct bilirubin).


RO7119929—F. Hoffmann-La Roche Ltd
48/Protocol WP41377, Version 3
o
Treatment-emergent ALT or AST >3 x baseline value in combination with 
clinical jaundice.

Grade 3 laboratory abnormality that is asymptomatic and deemed by the 
Investigator not to be clinically significant.
During Part A dose escalation, participants who withdraw before the end of the DLT 
period for reasons other than DLTs will be replaced to ensure that all participants in each 
cohort have been assessed for the full DLT period prior to moving to the next dose level.
Table 7
Adverse Events Considered Dose-limiting Toxicities
SOC Disorder
NCI CTCAE Term
DLT Criteria
Blood and lymphatic 
system disorders
Neutropenia (neutrophil 
count decreased)
Grade 4 neutropenia (˂0.5G/l) lasting 
5 consecutive days
Febrile neutropenia
Grade 3 neutropenia (˂1.0G/l) associated with 
single body temperature 38.3°C or sustained 
body temperature 38°C for 1 hour, and/or with 
infection
Lymphopenia
Grade 3 CD4 lymphocytes decreased (<0.2G/l) 
or grade 3 lymphocyte count decreased (0.5 G/l) 
lasting 5 consecutive days
Anemia
Grade 4 anemia or Grade 3 anemia with 
hemolysis
Thrombocytopenia (platelet 
count decreased)
Grade 4 thrombocytopenia or Grade 3 
thrombocytopenia associated with clinically 
significant bleeding and/or bleeding episodes 
requiring a platelet transfusion
Activated partial 
thromboplastin time 
prolonged
Grade 3
Any other grade 3 blood and lymphatic system 
disorder that is not listed among the exceptions in 
Section 4.1.3.2.
Non-hematologic 
disorders
Cytokine release syndrome Grade 3 (hypotension managed with 1 
vasopressor or hypoxia requiring 40% O2)
Any other grade 3 non-hematological toxicity that 
is not listed among the exceptions in 
Section 4.1.3.2.
Abbreviations: DLT=Dose-limiting toxicity; NCI CTCAE= National Cancer Institute Common Terminology 
Criteria for Adverse Events v5.0; SOC=System organ class.


RO7119929—F. Hoffmann-La Roche Ltd
49/Protocol WP41377, Version 3
4.1.4
Stopping Rules Criteria
During each schedule within the dose escalation in Part A, the model will recommend to 
stop if:

At least 12 participants have been evaluated and at least 6 participants have been 
observed at a dose close to MTD (i.e., a dose differs by at most 10%) and the 
posterior probability that (0.2 Prob[DLT | dose] 0.35) for the next best dose is 
above 50% OR 

The maximum of 60 DLT-evaluable participants is reached OR  

A minimum of 6 participants has been accrued at the maximum dose or near 
(differing from the maximum dose by at most 10%) and it is at least 50% likely that 
the probability of a DLT for that maximum dose is below 20%
In addition, the dose escalation could be halted upon sufficient characterization of 
RO7119929 in regards to safety and PK and without MTD determination.
In Part B, cohorts may be stopped for unacceptable toxicity. The criteria for 
unacceptable toxicity are detailed in Section 8.3.7. 
Expansion cohorts may be stopped also if a strategic decision is made by the Sponsor to 
stop further development of RO7122290.
4.1.5
Communication Strategy
Information will be communicated as follows:

Upon completion of all screening evaluations and confirmation that a participant has 
met all inclusion and exclusion criteria, sites will contact the Sponsor to confirm the 
participant number and cohort assignment via a Confirmation of Enrollment form. 
This will guarantee that the Sponsor is notified prior to the administration of 
RO7119929.

For all participants, during dose escalation in Part A, the Investigator(s) must 
confirm to Roche that the participant has been dosed and provide a brief summary 
of the status of the participant in terms of safety and tolerability to RO7119929, 
communicated by email and/or telephone. 

In the event of a DLT, the Investigator will contact the Sponsor immediately to 
discuss participant status and action taken/to be taken.

During dose escalation in Part A, after completion of each participant cohort (i.e., 
minimum of 3 DLT-evaluable participants; after the last participant in the cohort has 
reached the last day of the DLT period without the observation of a DLT) the 
Sponsor will organize a teleconference with the Investigators to discuss the safety 
and tolerability of RO7119929 and to discuss the dose(s) for the next cohort. If the 
teleconference occurs prior to the end of the DLT evaluation period, the Investigator 
will provide a final status prior to start of the next cohort. 


RO7119929—F. Hoffmann-La Roche Ltd
50/Protocol WP41377, Version 3

During each teleconference:
o
NCI-CTCAE (v5.0) toxicities (see Appendix 2) will be discussed along 
with the results of PK data (if available), in addition to safety laboratory 
results and any other available data that may assist the dose escalation 
decision process. 
o
Dose escalation decisions and selection of the dose for the next cohort of 
participants will be made following review of all relevant available data, as 
well as the EWOC recommendations. Dose escalation will only proceed 
to the next dose level if the Investigators and the Sponsor are satisfied 
with the safety profile of the previous cohort and agree to move to the 
next dose level. 
o
The discussion will be documented in writing, and both the Sponsor and 
Investigators will approve the minutes of these meetings to confirm 
agreement. 
In addition to these communications, the Sponsor and Investigators will be in regular 
contact throughout the study by email/telephone/fax, as per normal interactions during 
the conduct of a clinical study, and the Sponsor will arrange regular teleconferences and 
meetings to discuss study status.
The Sponsor will be available 24 hours a day to discuss any medical or study-related 
issues that may arise during the conduct of this study.
4.1.6
Administrative Structure
The Sponsor is responsible for the study management (monitoring), data management, 
statistical analysis, and medical writing of the Clinical Study Report. A Clinical Study 
Report will be written and distributed to Health Authorities, as required by applicable 
regulatory requirements. The protocol will be submitted to country/institutional Ethics 
Committees. For further details, see Appendix 1.
4.2
SCIENTIFIC RATIONALE FOR STUDY DESIGN
Study WP41377 is a first-in-human, open-label, multicenter Phase I dose escalation 
study of single agent RO7119929 consisting of two parts (see overall study design 
Section 4.1).
The dose escalation part (Part A) of this study will explore three different schedules and use 
a Bayesian model-based approach (for statistical rationale see Section 4.2.5). The 
primary objective of Part A is to determine an MTD or RDE for each of the schedules.
Part B consists of up to three specific expansion cohorts at different dose levels and/or 
dosing schedules for extended PD analysis including collection of peripheral blood and 
mandatory paired tumor biopsies to demonstrate PoM (for details on biomarker 
assessment rationale see Section 4.2.2). As the PD effect may not be strictly 
dose-dependent once a pharmacologically active dose is reached, different doses may


RO7119929—F. Hoffmann-La Roche Ltd
51/Protocol WP41377, Version 3
be tested for both proximal and distal PD effects in order to determine the OBD. The 
dose cohorts for Part B may be selected after completion of Part A and following
analysis of all relevant safety information, PK data, and peripheral blood biomarkers. 
However, if signs of relevant anti-tumor and/or PD activity are observed during Part A at 
dose levels below MTD, it may be decided to start the first expansion cohort before Part 
A is complete after discussion and alignment between the Investigators and the 
Sponsor.
The study rationale is provided in Section 2.1.
4.2.1
Rationale for Study Population
This study will enroll participants with advanced or metastatic primary hepatic tumors 
(HCC, BTC) or with metastasized extra-hepatic solid tumors with predominant liver 
involvement and for whom no effective standard therapy exists. The selection of tumors 
with predominantly hepatic localization is due to the prodrug design of the study drug, 
which results in predominant hepatic conversion to the active drug and thus an intra-
hepatic induction and priming of the anti-tumor response. However, due to the expected 
systemic proliferation of activated tumor-specific T cells, an anti-tumor effect in extra-
hepatic tumor manifestations may also be observed.
Depending on evolving data, the Sponsor may aim to enrich certain participant 
subgroups within the PD expansion cohorts, e.g., by selection for certain tumor types.
4.2.2
Rationale for Biomarker Assessments
RO7119929 was designed to target and activate TLR7 positive immune cells. As a 
biologic consequence of TLR7 engagement, cells are activated and mature. This results 
in an increase of T-cell priming activities of e.g. TLR7+ APCs and release of 
pro-immunostimulatory cytokines and chemokines to enable and facilitate anti-tumor 
immunity. 
Non-clinical studies have demonstrated a dose-dependent increase of IFN-stimulated 
genes downstream of TLR7 signaling such as ISG15 or OAS1 as well as the induction of 
pro-inflammatory cytokine such as IFN-α, IL-6, IL-8, CCL2, TNFα, and IL-2 (for details 
see Investigator’s Brochure). Further, these studies confirmed the hypothesized mode of 
action of RO7119929 by showing an activation of TLR7 positive immune cells such as 
dendritic cells, monocytes/macrophages, and B cells as well as NK cells. Hence, PD 
markers downstream of TLR7 signaling will be assessed from peripheral blood pre-dose 
and on-treatment for all dose levels and schedules. Based on non-clinical data, the dose-
dependent induction of IFN-α and ISG 15 will be prioritized (see Section 1.3 and
Section 8.7).
In addition, to monitor PD cytokine release in the context of safety, plasma/serum 
analysis for selected cytokines/chemokines such as IL-6, IL-8, IP-10, TNF, and sCD25 
will be monitored in parallel with PD dose selection markers.


RO7119929—F. Hoffmann-La Roche Ltd
52/Protocol WP41377, Version 3
Beyond TLR7 expression, drug converting CYP2C9, CYP2C19 as well as drug 
transporters and metabolizing enzymes such as UGT1A9 and UGT1A1 gene 
polymorphisms and their respective ethnic prevalence can impact the direct TLR7 
dependent activation pathway or the (pro)-drug conversion rate and the active drug 
clearance. To characterize the SNPs prevalence versus the observed PK/PD 
relationship, a genetic DNA based analysis will be performed from a pre-treatment blood 
sample for all participants treated with RO7119929 (see Section 1.3 and Section 8.7).
For Part B, the biomarker endpoint is to demonstrate proof of mechanism by
investigating distal PD markers (i.e. the biological consequence of TLR7 activation) in 
the tumor. Therefore, Part B represents up to 3 dedicated PoM cohorts tested at defined
dose levels with mandatory paired pre- and post-treatment tumor biopsies in primary 
liver cancer (HCC, BTC) or metastatic disease to the liver. Biopsies have to be taken 
from the hepatic lesion and will be used to analyze changes of cytokine/chemokine gene 
expression in the tumor microenvironment (TME; Table 3, Table 5, and Section 8.7, fresh 
mandatory biopsy). In addition, a direct link between reprogramming of the tumor 
microenvironment and activation of TLR7+ immune cells in the TME will be investigated.
Secondary effects of TLR7 stimulation on T cells induced by single agent RO7119929 
will be characterized in Part B in blood and tumor tissue. The activation and spatial 
location of tumor infiltrating T lymphocytes will be monitored from the paired tumor tissue 
biopsies (Table 3 and Table 5; fresh mandatory tumor biopsies) as well as the activation 
of peripheral T cells in the blood. Additional tumor markers such as PD-L1 and fibroblast 
activation protein (FAP) expression in tumor tissue may be investigated in the context of 
potential combination partners (see Section 8.7).
As potential additional surrogate markers for tissue based tumor-infiltrating lymphocyte 
(TIL) activation, 2 additional peripheral blood samples will be collected to investigate the 
RO7119929 mediated changes to the peripheral TCR Vrepertoire as indicated by 
external non-clinical and clinical studies (Diab et al 2019). The analysis of potential TCR 
Vrepertoire changes, however, may be gated to successful demonstration of PoM 
(Section 1.3 and Section 8.7).
All specimens for the described and additional exploratory biomarker assessments will 
be used for research purposes to support the optimal dose/schedule selection of 
RO7119929, to monitor safety, to demonstrate PoM, and to identify response prediction/ 
mechanism of resistance to therapy.
4.2.3
Rationale for Pharmacokinetic Assessment
In this study, RO7119929 will be tested in humans for the first time. Therefore, it is 
important to fully characterize the PK profile of RO7119929 and its metabolite, 
RO7117418, the active drug of RO7119929 at different schedules with and without 
tocilizumab pre-treatment. Serial PK samples (i.e., multiple time points of collection post 
oral administration) will be performed per the SoA (see Section 1.3). Due to uncertainty in 


RO7119929—F. Hoffmann-La Roche Ltd
53/Protocol WP41377, Version 3
the human PK prediction and an observed prolonged flat-terminal phase after IV 
administration of RO7117418 in the monkey, an additional 30 h time point for PK and PD 
sampling will be taken in the first cohorts in Part A. The 30 h sampling may be omitted 
during the course of the study in case this prolonged flat-terminal phase is not observed 
in humans.

Additionally, the effect of food intake on the PK of RO7119929 will be explored. 
RO7119929 is a biopharmaceutics classification system (BCS) class 1 drug with a 
high first-pass metabolism and the PK can be affected by meals. This food effect
pilot study during dose escalation in Phase I aims to show that food does not have a 
clinically significant impact on the PK of RO7119929 and that future clinical trials 
can be conducted without regard to food.
To understand the relationship between RO7119929 and RO7117418 plasma exposure 
and efficacy/safety, unscheduled PK samples will be taken at the time of development of 
any of the following events, or at the earliest possible time thereafter:

DLT event

Dose reduction or treatment interruption due to AEs with CTCAE Grade 3 or 
cytokine release syndrome (CRS) Grade 2 severity

Clinically significant changes in ECGs, echocardiogram/MUGA or myocardial 
marker levels, such as troponin or pro-BNP levels, disease response (i.e., first time 
point of complete response or partial response), disease progression

Disease response (i.e., first time point of complete response [CR] or partial 
response [PR])

Disease progression
4.2.4
Rationale for the Treatment of Cytokine Release Syndrome 
Using Tocilizumab
CRS is a potentially life-threatening symptom complex, caused by the excessive release 
of cytokines by immune effector or target cells during an exaggerated and sustained 
immune response. CRS can be triggered by a variety of factors, including infection with 
virulent pathogens, or by medications that activate or enhance the immune response, 
resulting in a pronounced and sustained immune response.
Regardless of the inciting agent, severe or life-threatening CRS is a medical emergency. 
If unsuccessfully managed, it can result in significant disability or fatal outcome. Current 
clinical management focuses on treating the individual signs and symptoms, providing 
supportive care, and attempting to dampen down the inflammatory response using high 
dose corticosteroids. However, this approach is not always successful, especially in the 
case of late intervention. 
CRS is associated with elevations in a wide array of cytokines, including marked 
elevations in IFN-γ, IL-6, and TNF-α levels. Emerging evidence implicates IL-6 as a 


RO7119929—F. Hoffmann-La Roche Ltd
54/Protocol WP41377, Version 3
central mediator in CRS. IL-6 is a pro-inflammatory multi-functional cytokine produced by 
a variety of cell types, which has been shown to be involved in a diverse array of 
physiological processes including T-cell activation. CRS is associated with high IL-6 
levels (Panelli et al 2004, Lee et al 2014, Doessegger and Banholzer 2015), and IL-6 
correlates with the severity of CRS with patients who experience severe or life-
threatening CRS (CTCAE Grades 3 or 4), having much higher IL-6 levels compared to 
their counterparts who do not experience CRS or only experience milder CRS reactions 
(CTCAE Grades 0 to 2) (Chen et al 2016).
Tocilizumab (Actemra®/RoActemra®) is a recombinant, humanized, anti-human 
monoclonal antibody directed against soluble and membrane-bound IL-6R, which 
inhibits IL-6 mediated signaling. Blocking the inflammatory action of IL-6 using 
tocilizumab could therefore represent a novel approach for the treatment of CRS. Refer 
to the tocilizumab Investigator’s Brochure for further details. 
CRS is associated with T-cell recruiting therapies including CAR-T-cell therapy and 
bispecific molecules such as blinatumomab. There have been multiple reports in the 
literature of tocilizumab being used off-label to successfully treat severe or life-
threatening CRS with different underlying causality (Teachey et al 2013, Lee et al 2014, 
National Institute of Health 2017, Frey and Porter 2019, Ascierto et al 2020), and 
tocilizumab is now approved in the U.S. for the treatment of CAR T-cell-induced severe 
or life-threatening CRS in adults and pediatric patients 2 years of age and older.
In addition, recent literature supports the use of tocilizumab for management of moderate cases of 
CRS (Neelapu et al 2018, Riegler et al 2019). 
Transient elevations of IL-6 have been observed in patients experiencing CRS Grade ≥2 following 
the administration of RO7119929, including high levels of IL-6 (see the RO7119929 
Investigator’s Brochure for details). 
Together, these findings indicate that patients treated with RO7119929 who develop CRS
Grade 2 may benefit from tocilizumab therapy; nevertheless, tocilizumab should be used 
only after careful consideration of the benefit/risk in a given participant. Section 8.3.9
provides recommendations regarding the management of CRS.
4.2.5
Rationale for RO7119929 Step-up Dosing (Schedule 2)
Step-up dosing has repeatedly shown to be an effective measure to improve the safety profile in 
cancer immunotherapies associated with CRS, in particular in the context of T-cell bispecific 
antibodies. For instance, blinatumomab has been demonstrated to be tolerated at its recommended 
Phase II dose only in the context of Cycle 1 step-up dosing (Blincyto USPI; Viardot et al 2016). 
CRS has been identified as a risk for RO7119929, particularly in Cycle 1. The transient cytokine 
release observed after dosing of RO7119929 is similar to the cytokine profile described for T-cell 
bispecific antibodies including blinatumomab. After a fast and strong increase of cytokine levels 


RO7119929—F. Hoffmann-La Roche Ltd
55/Protocol WP41377, Version 3
such as IFN-#, IL-6, TNF-#, and IP10 during Cycle 1 Day 1, a trend for lower peak 
concentrations is seen at Cycle 2 Day 1, indicating a potential tolerance effect. This observation is 
in line with the reduced manifestation of CRS frequency and severity in Cycle 2 compared to 
Cycle 1 (RO7119929 Investigator’s Brochure).
The dose escalation administering a flat dose of RO7119929 (Schedule 1) is ongoing and the 
MTD and OBD have not yet been established. A two-step dose escalation (Schedule 2) is being 
added to this study to assess the safety, tolerability, and pharmacokinetics of a two-step dosing 
regimen in Cycle 1.  
4.2.6
Rationale for Using Tocilizumab for Pre-treatment (Schedule 3)
Initial clinical data (Locke et al 2017) suggest tocilizumab prophylaxis may reduce the severity of 
CAR-T cell-induced CRS by blocking IL-6 receptors from signaling prior to cytokine release. 
While emerging clinical data suggest that earlier intervention with tocilizumab may mitigate 
CRS induced by bispecific antibodies (Kauer et al 2020), to date, no clinical data on tocilizumab 
pre-treatment for prevention of CRS induced by any cancer immunotherapy besides CAR-T cells 
have been published. 
Highly elevated levels of IL-6 have been reported to be immunosuppressive, impairing IFN-y 
production and CD8 T cell function (Velazquez-Salinas et al 2019, Wu et al 2015). Specifically 
in cancer immunotherapy, elevated IL-6 levels lead to reduced immune-mediated tumor-cell 
killing (Tsukamoto et al 2018, Liu et al 2017). It is therefore hypothesized that blockage of excess 
IL-6 signaling may prevent CRS while possibly enhancing anti-tumor activity of RO7119929.  
Schedule 3 will thus evaluate the efficacy of tocilizumab as pre-treatment in ameliorating the 
frequency and/or severity of CRS in the first cycle following treatment with RO7119929. The 
tocilizumab dose to be tested as pre-treatment will be 8 mg/kg for participants ∀30 kg in weight 
(dose not to exceed 800 mg) and 12 mg/kg for participants < 30 kg in weight. This is based on the 
currently approved IV dose of tocilizumab for the treatment of CRS and is consistent with the 
Sponsor’s CRS management guidelines (Table 9). Up to three additional doses may be given, at 
8-hour intervals, to treat CRS if CRS develops after administration of RO7119929 despite pre-
medication (Section 8.3.9). The administration of tocilizumab pre-medication will be 2 hours 
prior to RO7119929 dosing to ensure both sufficient time to complete the tocilizumab infusion 
and close proximity to RO7119929 administration.
Schedule 3 will first test a single dose of tocilizumab (prior to the Cycle 1 Day 1 dose of 
RO7119929). Based on the review of emerging safety data with the single dose of tocilizumab pre-
treatment, the Sponsor, in consultation with the investigators, may recommend an additional 
dose of tocilizumab be instituted prior to Cycle 1 Day 15 dose of RO7119929 (Section 4.1.1.1.3).


RO7119929—F. Hoffmann-La Roche Ltd
56/Protocol WP41377, Version 3
4.2.7
Rationale for the Statistical Design
The dose escalation Part A of this study will use a Bayesian model-based approach, i.e., 
the mCRM-EWOC design (Neuenschwander et al 2008). The use of Bayesian model-
based phase I designs has been advocated by Rogatko (Rogatko et al 2007) and is one 
of the key elements of the FDA’s Critical Path Initiative. Clinical judgment can always 
override the Bayesian adaptive design recommendations in the dose-selection process. 
The primary objective of a dose escalation study (including the present study) is to 
determine an MTD or recommend the dose for expansion. DLTs are the driver of dose 
allocation and act as an important factor to define the MTD. DLTs traditionally are 
defined by the occurrence of severe toxicities during a relatively short period of systemic 
cancer therapy, which is called the DLT observation window. 
Toxicity induced by RO7119929 in the pre-clinical studies occurred predominantly early 
after the initial administration of the drug. Therefore, in line with this, DLTs will be 
evaluated during the first 21 to 28 days, depending on schedule (Section 4.1.1.1).
The mCRM-EWOC design has many favorable characteristics: First, it adaptively fits a 
DLT-dose-response curve by incorporating toxicity data from eligible participants among 
different cohorts, and non-clinical or clinical information from compounds with similar 
MoA contributes by building an informative prior distribution of the statistical model. 
Second, it locates the MTD accurately without pre-specifying dose levels in each cohort. 
Dose-selections are made based on the DLT-dose-response curve measured by a two 
parameter logistic model over the dose range, subject to clinical judgment and mandated 
safety constraints that limit the size of dose increments. Moreover, the EWOC algorithm 
highly reduces risks of exposing participants to overly toxic doses. Such model-based 
designs have been successfully applied in many Phase I dose escalation studies 
(Schöffski et al 2004, Le Tourneau et al 2009, and Neuenschwander et al 2008). In 
addition, hypothetical dose escalation runs using the design and simulations 
demonstrate the validity of the operating parameters of the design as implemented for 
this study (Appendix 6).
4.3
JUSTIFICATION FOR DOSE
A starting dose of 1 mg has been selected for this first-in-human study. This dose is 
based on the no-observed-adverse-effect level (NOAEL) in cynomolgus monkeys, the 
most relevant animal species. The 1 mg dose is derived from exposure-based 
conversion of GLP monkey NOAEL data under the low clearance and volume of 
distribution under steady-state conditions (Vss) assumption (most conservative 
estimation) in human, applying a standard safety factor of 10. Based on PK and PD
modeling, this dose is expected to be safe and associated with little or no measurable 
PD effect, and lower than the estimated pharmacologically active dose (3 to 30 mg, 
considering the uncertainty in human clearance and Vss).


RO7119929—F. Hoffmann-La Roche Ltd
57/Protocol WP41377, Version 3
The safety margins associated with the starting dose have been based on the preclinical 
toxicokinetic data and the estimated NOAEL in the toxicology studies performed. 
For the starting doses for step-up dosing (Schedule 2) and flat dosing with tocilizumab pre-
treatment (Schedule 3), refer to Section 4.1.1.1.2 and Section 4.1.1.1.3.
Further details are provided in the Investigator’s Brochure.
4.4
END OF STUDY DEFINITION
The end of this study is defined as the date when the last participant, last visit occurs or 
after approximately 14 months (screening phase 28 days, treatment period up to 
12 months, and follow-up period 28 days) after the last participant is enrolled, whichever 
occurs first. For an individual participant, the completion of the study (i.e., the last visit) 
will occur when the participant withdraws consent, has been lost to follow-up, dies, or 
when the study is stopped. Because of the exploratory nature of this clinical study, its 
conduct can be discontinued at any time at the discretion of the Sponsor.
5.
STUDY POPULATION
This study will enroll adults with unresectable advanced or metastatic HCC, BTC, or 
specific solid tumors with predominant liver involvement (see below).
The study population rationale is provided in Section 4.2.1.
5.1
INCLUSION CRITERIA
Participants are eligible to be included in the study only if all of the following criteria 
apply:

Signed written informed consent and the ability to comply with the study protocol 
according to the International Council for Harmonisation (ICH) and local regulations.

Age 18 years.

Histologically confirmed diagnosis of one of the following:
o
Participants with unresectable advanced or metastatic HCC (including
fibrolamellar HCC) not amenable to a curative treatment approach. For 
participants with cirrhosis, clinical diagnosis by the American Association 
for the Study of Liver Diseases (AASLD) criteria is sufficient
(Appendix 10). 
o
Participants with unresectable advanced or metastatic intrahepatic or 
perihilar (Klatskin) BTC not amenable to a curative treatment approach.
o
Participants with extrahepatic BTC or gallbladder cancer infiltrating the 
liver or metastasized into the liver with predominant liver disease, not 
amenable to a curative treatment approach.
o
Participants with metastasized colorectal cancer (CRC), pancreatic ductal 
adenocarcinoma (PDAC), gastric cancer (GC), renal cell carcinoma 


RO7119929—F. Hoffmann-La Roche Ltd
58/Protocol WP41377, Version 3
(RCC), triple-negative breast cancer (TNBC), cutaneous melanoma, or 
ocular melanoma with predominant liver disease not amenable to a 
curative treatment approach. Participants with other solid tumors with 
predominant liver disease not amenable to a curative treatment approach 
might be enrolled after Sponsor approval.

Measurable disease with at least one measurable locally untreated liver lesion, as 
defined by RECIST v1.1.
o
Participants who received prior local therapy to the liver (e.g., 
radiofrequency ablation, percutaneous ethanol or acetic acid injection, 
cryoablation, high-intensity focused ultrasound, transarterial 
chemoembolization, transarterial embolization, etc.) are eligible provided 
the target lesion(s) have not been previously treated with local therapy or 
the target lesion(s) within the field of local therapy have subsequently 
progressed in accordance with RECIST v1.1.

Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1.

Adequate hematologic function, defined by laboratory assessment documented 
within 7 days prior to Cycle 1 Day 1 treatment:
o
Absolute neutrophil count (ANC) ≥1500/L, white blood cell (WBC)
≥2500/L without granulocyte colony-stimulating factor support
o
Hemoglobin ≥9.0 g/dL
o
Platelet count ≥75,000/L without transfusion

Adequate major organ functions, defined as:
o
Serum creatinine ≤1.3 upper limit of normal (ULN) or calculated 
creatinine clearance 60 mL/min/1.73 m2 using the Modification of Diet in 
Renal Disease Study (MDRD) formula
o
Serum bilirubin ≤2 ULN
o
Serum transaminases ≤3 ULN
o
Serum alkaline phosphatase ≤5 ULN
o
Serum albumin ≥2.8 g/dL without transfusion
o
For participants not receiving therapeutic anticoagulation: International 
normalized ratio (INR) and activated partial thromboplastin time (aPTT)
≤2 ULN

Documented virology status of hepatitis, as confirmed by screening hepatitis B virus
(HBV), hepatitis C virus (HCV) serology, and viral load test.

Participants for which there is no available standard therapy likely to confer clinical 
benefit, or participants who are not candidates for such available therapy.


RO7119929—F. Hoffmann-La Roche Ltd
59/Protocol WP41377, Version 3

Life expectancy of ≥12 weeks, approximated with Royal Marsden Hospital score 0-1 
(Arkenau et al 2009) or Gustave Roussy Immune (GRIm) score 0-1 
(Bigot et al 2017). See scores in Appendix 14. Participants with a Royal Marsden 
Hospital or GRIm score of ≥2 and a life expectancy of ≥12 weeks according to the 
investigator’s clinical judgement may be enrolled after Medical Monitor approval has 
been obtained.

For participants with HCC: Child-Pugh score of A6 or better (Appendix 11).

Male and/or female participants: The contraception and abstinence requirements are 
intended to prevent exposure of an embryo to the study treatment. The reliability of 
sexual abstinence for male and/or female enrollment eligibility needs to be evaluated 
in relation to the duration of the clinical study and the preferred and usual lifestyle of 
the participant. Periodic abstinence (e.g. calendar, ovulation, symptothermal, or post-
ovulation methods) and withdrawal are not acceptable methods of preventing drug 
exposure.

Female participants: A female participant is eligible to participate if she is not 
pregnant (see Appendix 5), not breastfeeding and at least one of the conditions 
apply:
o
Woman of non-child bearing potential (WONCBP) as defined in 
Appendix 5.
o
Woman of childbearing potential (WOCBP), who:

Agrees to remain abstinent (refrain from heterosexual intercourse) 
or use two highly effective contraceptive methods that result in a 
failure rate of <1% per year, during the treatment period and for at 
least one month after the last dose of study drug RO7119929 and 
3 months after the last dose of tocilizumab, whichever is longer. 
Examples of contraceptive methods with a failure rate of < 1% per 
year include bilateral tubal occlusion, male sterilization, 
established proper use of hormonal contraceptives that inhibit 
ovulation, hormone-releasing intrauterine devices (IUDs), and 
copper IUDs (see Appendix 5). Hormonal contraceptive methods 
must be supplemented by a barrier method.

A woman is considered to be of childbearing potential if she is 
post-menarcheal, has not reached a post-menopausal state (≥12 
continuous months of amenorrhea with no identified cause other 
than menopause), and has not undergone surgical sterilization 
(removal of ovaries and/or uterus).

Has a negative pregnancy test (blood) within seven days prior to 
the first study drug administration.

Male participants: During the treatment period and for at least 30 days after the final 
dose of treatment RO7119929 and at least 60 days after the last dose tocilizumab, 
agreement to:


RO7119929—F. Hoffmann-La Roche Ltd
60/Protocol WP41377, Version 3
o
With a partner who is a WOCBP (as defined in Appendix 5), remain 
abstinent (refrain from heterosexual intercourse) or use contraceptive 
measures such as a condom plus an additional contraceptive method that 
together result in a failure rate of <1% per year.
o
With a pregnant female partner, remain abstinent (refrain from 
heterosexual intercourse) or use contraceptive measures such as a 
condom to avoid exposing embryo.
o
Refrain from donating sperm for at least 30 days after the final dose of 
RO7119929 and 60 days if tocilizumab treatment.
Additional Inclusion Criteria for Study Part B:

Ability to obtain and consent for tumor biopsy specimen collection at pre-study 
baseline and one additional post-treatment biopsy sample collected during treatment 
on Cycle 2 Day 2, each from a liver lesion.
Of note, a lesion considered for biopsy should not be selected as target lesion.
Therefore, eligible patients need to present with at least two liver lesions, of which at 
least one needs to be measurable, as defined by RECIST v1.1. Patients with only 
one measurable liver lesion, as defined by RECIST v1.1, may be considered after 
consultation with the Sponsor.
5.2
EXCLUSION CRITERIA
Participants are excluded from the study if any of the following criteria apply:

History or clinical evidence of central nervous system (CNS) primary tumors or 
metastases including leptomeningeal metastases, unless they have been previously 
treated, are asymptomatic, and have had no requirement for steroids or enzyme-
inducing anticonvulsants in the last 14 days prior to Screening.

Evidence of any extra-hepatic primary tumor or metastasis requiring prompt medical 
intervention.

Receipt of prior therapy with a TLR7/8/9 agonist and/or IFN-

Prior chemotherapy, antibody, or other registered or experimental cancer treatment 
within 3 weeks of study Cycle 1 Day 1. Specifically, no CPI antibody is allowed to be 
administered within 6 weeks of study Cycle 1 Day 1.

Receipt of investigational agent for any other indication within 3 weeks of dosing.

Treatment with systemic immunosuppressive medication (including, but not limited 
to, corticosteroids, cyclophosphamide, azathioprine, methotrexate, thalidomide, and 
antiTNF-agents) within 2 weeks prior to initiation of study treatment, or 
anticipation of need for systemic immunosuppressive medication during study 
treatment, with the following exceptions:
o
Patients who received acute, low-dose systemic immunosuppressant 
medication or a one-time pulse dose of systemic immunosuppressant 


RO7119929—F. Hoffmann-La Roche Ltd
61/Protocol WP41377, Version 3
medication (e.g., 48 hours of corticosteroids for a contrast allergy) are 
eligible for the study after Medical Monitor approval has been obtained.
o
Patients who received mineralocorticoids (e.g., fludrocortisone), for 
chronic obstructive pulmonary disease (COPD) or asthma, or low-dose 
corticosteroids for orthostatic hypotension or adrenal insufficiency are 
eligible for the study.
o
Patients who are tapered off systemic corticosteroids as part of a prior
cancer regimen must have received the last dose 7 days prior to 
initiation of study treatment.

Radiotherapy or major surgery within 3 weeks of dosing. Palliative radiotherapy to 
bone lesions is allowed. Patients should be recovered from the effects of radiation
and/or surgery.

Local therapy to liver (e.g. radiofrequency ablation, percutaneous ethanol or acetic 
acid injection, cryoablation, high-intensity focused ultrasound, transarterial 
chemoembolization, and transarterial embolization) within 3 weeks prior to initiation 
of study treatment, radioembolization within 3 months prior to initiation of study 
treatment, or non-recovery from side effects of such procedure.

Treatment-related toxicities from prior cancer therapy that have not resolved to 
Grade 1 CTC AE prior to study treatment with the exception of the following Grade 
2 toxicities: alopecia, peripheral neuropathy, any laboratory changes that still lie 
within the inclusion criteria defined above. 

History of other malignancy within 2 years; exception for ductal carcinoma in situ not 
requiring chemotherapy, low grade cervical intraepithelial neoplasia (CIN), non-
melanoma skin cancer, low grade localized prostate cancer (Gleason score Grade 
7), or optimally treated Stage 1 uterine cancer.

Active or history of immunologic-mediated disease, including but not limited to
myasthenia gravis, myositis, autoimmune hepatitis, systemic lupus erythematosus, 
rheumatoid arthritis, multiple sclerosis, inflammatory bowel disease, antiphospholipid 
antibody syndrome, Wegener granulomatosis, Sjogren’s syndrome or Guillain-Barré
syndrome (for a more comprehensive list of autoimmune diseases and immune 
deficiencies see Appendix 12), with the following exceptions:
o
Patients with a history of autoimmune-related hypothyroidism who are on 
thyroid replacement hormone are eligible for the study.
o
Patients with controlled Type 1 diabetes mellitus who are on an insulin 
regimen are eligible for the study.
o
Patients with eczema, psoriasis, lichen simplex chronicus, or vitiligo with 
dermatologic manifestations only (e.g., patients with psoriatic arthritis are 
excluded) are eligible for the study provided all of the following conditions 
are met:

Rash must cover <10% of body surface area.

Disease is well controlled at baseline and requires only low-
potency topical corticosteroids.


RO7119929—F. Hoffmann-La Roche Ltd
62/Protocol WP41377, Version 3

No occurrence of acute exacerbations of the underlying condition 
requiring psoralen plus ultraviolet A radiation, methotrexate, 
retinoids, biologic agents, oral calcineurin inhibitors, or high-
potency or oral corticosteroids within the previous 12 months.

Positive laboratory result for anti-mitochondrial, anti-smooth muscle, or thyroid 
peroxidase antibodies, unless further work-up has been performed to exclude 
autoimmune liver diseases (such as primary biliary cirrhosis and autoimmune 
hepatitis) and autoimmune thyroiditis.

Known active or uncontrolled bacterial, viral, fungal, mycobacterial (including but not 
limited to tuberculosis [TB] and typical mycobacterial disease), parasitic, or other
infection (excluding fungal infections of nail beds). This includes Epstein-Barr virus 
(EBV) or other acute active viral infection including Varicella zoster virus (VZV) and 
cytomegalovirus (CMV).

Severe infection within 4 weeks prior to initiation of study treatment including, but not 
limited to, hospitalization for complications of infection, bacteremia, or severe 
pneumonia.

Treatment with therapeutic oral or IV antibiotics within 2 weeks prior to initiation of 
study treatment.
Please note: Patients receiving prophylactic antibiotics (e.g. to prevent a urinary tract 
infection or chronic obstructive pulmonary disease exacerbation) are eligible for the 
study.

Prior allogenic stem cell or solid organ transplantation.

History of human immunodeficiency virus (HIV) infection 

Active hepatitis B virus infection 
Note: Patients with active HBV can be enrolled if
o
HBV DNA <500 IU/mL obtained within 28 days prior to initiation of study 
treatment AND
o
Anti-HBV treatment (per local standard of care) for a minimum of 14 days 
prior to study entry and willingness to continue treatment for the length of 
the study.

Coinfection of HBV and HCV
Note: Active hepatitis C infection is defined as having a positive HCV RNA test at screening. 
Patients with a history of HCV infection who are negative for HCV-RNA by PCR will be 
considered non-infected with HCV. 

History of clinically significant cardiovascular, endocrine, pulmonary, gastrointestinal,
or psychiatric disorder as follows: 


RO7119929—F. Hoffmann-La Roche Ltd
63/Protocol WP41377, Version 3
o
Hypertensive crisis/encephalopathy, uncontrolled hypertension (systolic 
blood pressure 150 mmHg and/or diastolic blood pressure 100 mmHg; 
average of ≥3 readings in 2 sessions), stroke, acute coronary syndrome, 
congestive heart failure according to New York Heart Association (NYHA)
1 or left ventricular ejection fraction (LVEF) <50%, serious cardiac 
arrhythmia that requires treatment with the exceptions of atrial fibrillation 
and paroxysmal supraventricular tachycardia within 6 months of 
enrolment.
o
History of pulmonary embolism within 3 months of enrolment.
o
Non-controlled diabetes (HbA1c >7%) or diabetic retinopathy.
o
History of pulmonary disorders including interstitial pneumonitis, 
bronchiolitis obliterans, pulmonary hypertension, and sarcoidosis.
o
History of chronic pancreatitis or acute pancreatitis within the last 
6 months of enrolment.
o
History of major depression with suicidal ideation within the last 5 years.

Ascites, pleural effusion, or pericardial effusion requiring medical intervention 
(including use of diuretics) within 12 months prior to study entry.

For patients with HCC: 
o
Untreated or incompletely treated esophageal and/or gastric varices with 
history of bleeding or high risk for bleeding

Note: Patients must undergo an esophagogastroduodenoscopy (EGD), and all size 
of varices (small to large) must be assessed and treated per local standard of care 
prior to enrollment. Patients who have undergone an EGD within 6 months prior to 
initiation of study treatment do not need to repeat the procedure.
o
History of hepatic encephalopathy
o
History of main portal vein thrombosis or evidence of hepatofugal portal 
venous flow

Active alcohol or substance abuse as documented by the Investigator.

Vaccination with a live or live-attenuated vaccine within 28 days prior to Day 1. 

A clinically significant concomitant disease or condition that could interfere with the 
conduct of the study protocol or that would pose an unacceptable risk for the 
participant in the opinion of the Investigator.
5.3
LIFESTYLE CONSIDERATIONS
There are data suggesting that milk thistle products (Silybum marianum; Flavonolignans 
silybin) may inhibit CYP2C9 and UGT1A1 (Grimstein et al 2018). Therefore, participants 
should minimize the amount of milk thistle supplementation from Day -1 until the end of 
treatment period. 


RO7119929—F. Hoffmann-La Roche Ltd
64/Protocol WP41377, Version 3
5.3.1
Meals and Dietary Restrictions
No specific food is prohibited in this study. 
The effect of food intake on the PK of RO7119929 will be explored in a minimum of 
6 evaluable participants across several Part A cohorts. The participants will receive 
doses of RO7119929 while fed at Cycle 1 Day 1 (Schedules 1 and 3, flat dosing) or at Cycle 
1 Day 15 (Schedule 2, step-up dosing) and while fasted at Cycle 2 Day 1 enabling intra-
participant cross-over comparison. The dose cohorts in which the food effect will be 
studied will be selected based on emerging PK and PD data (above the predicted 
minimal pharmacologically active dose).
Following an overnight fast of at least 10 hours, RO7119929 will be administered after a 
standard meal (i.e. 400-1000 calories, 25-50% fat; meal should be eaten in 30 minutes 
or less) at Cycle 1 Day 1 or Cycle 1 Day 15, respectively, and in fasted condition at Cycle 2 
Day 1. In both cases, RO7119929 should be taken together with 240 mL of water. 
Additional water is permitted ad libitum except for the period 1 hour before to 1 hour after 
drug administration. In both cases, food should not be consumed for at least 4 hours 
after the dose. The food intake during the standard meal will be recorded on the 
electronic Case Report Form (eCRF).
For dosing events that are not part of the food effect evaluation, RO7119929 will be 
given in fasted state (at least 2 hours after a meal or 2 hours before the next meal).
Alcohol consumption is to be strongly discouraged. During the study, participants should 
consume no more than an average of 20 g of alcohol per day. Participants will be 
queried on a regular basis about their alcohol consumption and appropriate comments 
concerning this intake will be recorded on the eCRF.
5.4
SCREEN FAILURES
Screen failures are defined as participants who consent to participate in the clinical study 
but are not subsequently entered in the study.
The Investigator will maintain a screening log to record details of all participants 
screened and to confirm eligibility or record reasons for screening failure.
Individuals who do not meet the criteria for participation in this study (screen failure) may 
be re-screened once, with Sponsor approval. In the event re-screening is permitted, 
invasive assessments like biopsies do not have to be repeated if agreed by the Medical 
Monitor. In case of uncertain or questionable results, any of the tests performed during 
Screening may be repeated before study drug administration to confirm eligibility (or 
clinical significance).
6.
TREATMENTS
Study treatment is defined as any investigational treatment(s), marketed product(s),
placebo, or medical device(s) intended to be administered to a study participant 
according to the study protocol.


RO7119929—F. Hoffmann-La Roche Ltd
65/Protocol WP41377, Version 3
For the purpose of the study, only RO7119929 and tocilizumab are considered 
investigational medicinal products (IMP). All IMPs required for completion of this study 
will be provided by the Sponsor. Study drug administration will take place both at the 
study center under supervision of qualified site staff and at the participant’s discretion.
6.1
TREATMENTS ADMINISTERED
The administered treatments are summarized in Table 8.
Table 8
Summary of Treatments Administered
Study Treatment Name:
RO7119929
Tocilizumab1
IMP and NIMP
IMP
IMP
Dose Formulation:
Capsule
Concentrate for solution for IV 
infusion
Unit Dose 
Strength(s)/Dosage 
Level(s):
1 mg, 5 mg, 25 mg
200 mg/10 mL
Dose:
Part A starting dose will be 
1 mg
For participants 30 kg: 8 mg/kg
IV
For participants < 30 kg:
12 mg/kg IV
Route of Administration:
Oral
IV infusion
Dosing Regimen:
Every week (QW)
NA
Sourcing:
Provided centrally by the 
Sponsor
Provided centrally by the 
Sponsor
Packaging and Labeling:
Study treatment will be 
provided in HDPE bottles. 
Each HDPE bottle will be 
labeled as required per 
country requirement.
Tocilizumab will be provided in a 
carton box (one labeled vial per 
box). Each carton box will be 
labeled as required per country 
requirement.
HDPE=high-density polyethylene; IMP=investigational medicinal product; IV=intravenous; NA=not 
applicable; NIMP=non-investigational medicinal product; QW=every week.
1 In an emergency situation, tocilizumab may be obtained locally by the study sites (where approved by local 
health authorities) and will be formulated, prepared, and handled according to standard practice. Refer to 
the local prescribing information for further instructions regarding recommended storage conditions and 
packaging configuration.
6.1.1
RO7119929
RO7119929 will be administered as described in the Pharmacy Manual. Guidelines for 
dosage modification are provided in Section 6.6 and guidelines for treatment interruption 
or discontinuation are provided in Section 7.
6.1.2
Tocilizumab Pre-Treatment
In this study tocilizumab will be administered as pre-treatment in Schedule 3 (Section 1.3). In 
addition, it can be used to manage CRS associated with RO7119929 in all study schedules. 


RO7119929—F. Hoffmann-La Roche Ltd
66/Protocol WP41377, Version 3
The efficacy of tocilizumab in the management of a potential CRS associated with 
RO7119929 is unknown. Hence, tocilizumab should be used for treatment of CRS only 
after careful consideration of the benefit/risk in a given participant. Section 8.3.9
provides recommendations for the management of CRS. The SoA for tocilizumab 
treatment to manage CRS can be found in Appendix 13.
Tocilizumab will be provided by the Sponsor. In an emergency situation where the study-specific 
labeled supply of tocilizumab is not accessible, it may be supplied locally by the study sites (where 
approved by local health authorities) and will be formulated, prepared, and handled according to 
the local prescribing information. The study-specific labeled supply of tocilizumab should always 
be used for pre-treatment in Schedule 3. 
Tocilizumab will be administered at room temperature by controlled IV infusion over a 
1-hour period. The infusion rate must be 10 mL/hr for 15 minutes and then increased to 
130 mL/hr to complete the dosing over the 1-hour time period. Normal saline (20 mL) will 
be administered following infusion of study drug to flush the remaining study drug 
through the IV set.
For more details, see the tocilizumab Investigator’s Brochure and Pharmacy Manual.
6.1.3
Pre-medication for RO7119929
All pre-medications should be captured on a dedicated pre-medications page in the participant’s 
eCRF.
At Cycle 1 Day 1, Cycle 1 Day 8, and Cycle 1 Day 15, the participant should be pre-medicated 
with 500 mL of crystalloid fluid and 500-1000 mg paracetamol PO or IV at the time of 
RO7119929 administration (30 minutes), followed by 500-1000 mg paracetamol PO or IV 4-6 
hours after first drug administration. If no CRS is observed, no further pre-medication is foreseen 
beyond Cycle 1. If a participant develops CRS despite pre-medication, procedures for 
management of CRS will be initiated as described in Section 8.3.9.
If Grade 2 CRS is seen in a significant proportion of participants during dose escalation (Part 
A), the benefit of prophylactic pre-medication with corticosteroids (e.g., 10-20 mg dexamethasone 
or equivalent) may be tested in Cycle 1 after agreement between the Sponsor and Investigators. If 
successful, this regimen will be used in future cohorts. 
Pre-medication for participants who experience a Grade 2 CRS is to be administered for the 
subsequent dose according to the AE management guidelines in Section 8.3.9.  
The pre-medication regimens are based on the expected duration of inflammatory events and may 
be modified based on emerging data.
Pre-treatment with tocilizumab in Schedule 3 is described in Section 6.1.2.


RO7119929—F. Hoffmann-La Roche Ltd
67/Protocol WP41377, Version 3
6.2
PREPARATION/HANDLING/STORAGE/ACCOUNTABILITY
Study drug packaging will be overseen by the Roche clinical trial supplies department 
and bear a label with the identification required by local law, the protocol number, drug 
identification and dosage.
The packaging and labeling of the study medication will be in accordance with Roche 
standard and local regulations.
The study site should follow all instructions included with each shipment of IMP. The 
investigational site will acknowledge receipt of IMPs and confirm the shipment condition 
and content. Any damaged shipments will be replaced. The Investigator or designee 
must confirm that appropriate temperature conditions have been maintained during 
transit for all IMPs received and that any discrepancies have been reported and resolved 
before use of the IMPs. All IMPs must be stored in a secure, environmentally controlled, 
and monitored (manual or automated) area in accordance with the labeled storage 
conditions, with access limited to the Investigator and authorized staff.
Only participants enrolled in the study may receive IMPs, and only authorized staff may 
supply or administer IMPs.
The study site (i.e., Investigator or other authorized personnel [e.g., pharmacist]) is 
responsible for maintaining records of IMP delivery to the site, IMP inventory at the site, 
IMP use by each participant, and disposition or return of unused IMP, thus enabling 
reconciliation of all IMP received, and for ensuring that participants are provided with 
doses specified by the protocol. Upon arrival of the IMPs at the site, site personnel will 
complete the following:

Check the IMPs for damage.

Verify proper identity, quantity, integrity of seals and temperature conditions.

Report any deviations or product complaints to the Study Monitor upon discovery.
The qualified individual responsible for dispensing the study treatment will prepare the
correct dose according to the treatment assignment schedule.
The Investigator or delegate must confirm appropriate temperature conditions have been 
maintained during transit for all study treatment received and any discrepancies are 
reported and resolved before use of the study treatment.
Only participants enrolled in the study may receive study treatment and only authorized 
site staff may supply or administer study treatment. All study treatments must be stored 
in a secure, environmentally controlled, and monitored (manual or automated) area in 
accordance with the labeled storage conditions with access limited to the Investigator 
and authorized site staff.
The Investigator, Institution, or the Head of the Medical Institution (where applicable) is 
responsible for study treatment accountability, reconciliation, and record maintenance 
(i.e., receipt, reconciliation and final disposition records).


RO7119929—F. Hoffmann-La Roche Ltd
68/Protocol WP41377, Version 3
IMPs will either be disposed of at the study site according to the study site’s institutional 
standard operating procedure or returned to the Sponsor with the appropriate 
documentation. The site’s method of IMP destruction must be agreed upon by the 
Sponsor. Local or institutional regulations may require immediate destruction of used 
IMP for safety reasons. The site must obtain written authorization from the Sponsor 
before any IMP is destroyed, and IMP destruction must be documented on the 
appropriate form.
Accurate records of all IMPs received at, dispensed from, returned to, and disposed of 
by the study site should be recorded on the drug accountability log.
Refer to the Pharmacy Manual and/or the RO7119929 Investigator's Brochure and the 
tocilizumab Investigator’s Brochure for information on IMP formulation, IMP handling, 
including preparation and storage, and accountability.
6.3
MEASURES TO MINIMIZE BIAS: RANDOMIZATION AND 
BLINDING
6.3.1
Method of Treatment Assignment
All participants must provide written informed consent before any study-specific 
assessments or procedures are performed. Sites will be required to notify the Sponsor of 
planned participant screening in order to manage recruitment. An Eligibility Checklist
documenting the Investigator’s assessment of each screened participant with regard to 
the protocol’s inclusion and exclusion criteria is to be completed and signed by the 
Investigator (or designee). The Eligibility Checklist will also capture the allocated
screening number for the participant. When the clinical significance of an abnormal 
screening test result (laboratory or any other test) is considered uncertain, the test will 
be repeated.
If dose escalation cohorts (Part A) and dose expansion cohorts (Part B) are open in 
parallel, the Sponsor will decide where to enroll each participant. Depending on evolving 
data, these decisions might aim to enrich certain participant subgroups within the PD 
expansion cohort, e.g., by selection for certain tumor types.
If two or more expansion cohorts at different dose levels are open in parallel, enrollment 
into these cohorts will be determined by randomization.
6.3.2
Blinding
This is an open-label study, blinding is not applicable. 
6.4
TREATMENT COMPLIANCE
The qualified individual responsible for dispensing the study treatment will prepare the 
correct dose according to the schedule. This individual will write the date dispensed and 
participant number on the study treatment vial label and on the Drug Accountability 
Record. This individual will also record the study treatment number received by each 
participant during the study.


RO7119929—F. Hoffmann-La Roche Ltd
69/Protocol WP41377, Version 3
From Cycle 5 onward, if no site visit is scheduled and drug administration is not 
performed by site personnel, participants will use a medication diary to record taking the 
study drug at home.
6.5
CONCOMITANT THERAPY
6.5.1
Rescue Medicine
Not applicable.
6.5.2
Permitted Therapy
Any medication or vaccine (including over the counter [OTC] or prescription medicines, 
dietary and herbal supplements) used by a participant within 30 days of screening until
safety follow-up visit must be recorded along with a reason for use, dates of 
administration (including start and end dates) and dosage information (including dose 
and frequency). 
The Medical Monitor should be contacted if there are any questions regarding 
concomitant or prior therapy.
All concomitant medications should be reported to the Investigator and recorded on the 
concomitant medications eCRF.
All medication administered to manage adverse events should be recorded on the 
Adverse Event eCRF and any non-pharmacological interventions (e.g., individual 
psychotherapy, cognitive behavioral therapy, or rehabilitative therapy) should be 
recorded as appropriate on the eCRF.
Systemic corticosteroids and immune suppressants may attenuate potential beneficial 
immunologic effects of treatment. If deemed necessary for the treatment of immune-
related toxicities, systemic corticosteroids may be administered at the discretion of the 
treating physician after consultation with the Medical Monitor. If feasible, alternatives to 
corticosteroids should be considered.
Limited field palliative radiotherapy or elective surgery during the course of the clinical 
study can be permitted after discussion with and agreement of the Sponsor. No delay of 
study treatment administration is foreseen, although participants should not receive 
radiation or surgery at a day of study treatment.
6.5.3
Prohibited Therapy
RO7119929 might inhibit CYP3A in the gastro-intestinal tract during its absorption. Co-
medications known to be moderate and strong CYP3A substrates should be therefore 
administered at least 4 hours before and 2 hours after RO7119929 to minimize the risk 
of increased exposure of these co-medications. For example, administer RO7119929 in 
the morning of dosing and the co-medications at lunchtime for that day only. Thereafter, 
co-medications can be taken as normal. For the list of co-medications known to be 
moderate and strong CYP3A substrates, refer to Appendix 7. 


RO7119929—F. Hoffmann-La Roche Ltd
70/Protocol WP41377, Version 3
Conversion of RO7119929 to the active drug RO7117418 is mainly mediated through 
CYP2C9 and CYP2C19 metabolism in the liver. Co-medications known to interfere with 
CYP2C9 and CYP2C19 by moderate and strong inhibition are generally prohibited as 
they might inhibit the conversion of RO7119929 during first pass but might be allowed 
after discussion with the Sponsor. For a list of co-medications known to be moderate 
and strong CYP2C9 and CYP2C19 inhibitors refer to Appendix 7. 
The active drug RO7117418 is an OATP1B1 substrate and inhibitor (IC50 = 1.3 M). 
Co-medication that is known to inhibit OATP1B1/1B3 might increase the exposure to the 
active drug RO7117418 and should therefore be administered at least 4 hours before 
and 8 hours after RO7119929. With weekly dosing and the predicted short half-life, no 
substantial effect is expected for co-medications known to be substrates of OATP; 
however cautionary on days when RO7119929 is administered, co-medications known 
to be OATP substrates should be administered at least 4 hours before and 8 hours after 
RO7119929. For example, administer RO7119929 in the morning of dosing and the co-
medications in the afternoon for that day only. Thereafter, co-medications can be taken 
as normal. For a list of co-medications known to be OATP substrates and inhibitors refer 
to Appendix 7.
The active drug RO7117418 is mainly metabolized by UGT1A9 and to a lesser extent by 
UGT1A1 and UGT1A3. Co-medication known to be UGT1A9 and UGT1A1/1A3
inhibitors might increase the exposure of the active drug RO7117418 and should 
therefore be administered at least 4 hours before and 8 hours after RO7119929. For 
example, administer RO7119929 in the morning of dosing and the co-medications in the 
afternoon for that day only. Thereafter, co-medications can be taken as normal. For a list 
of co-medications known to be UGT1A9 and UGT1A1/1A3 inhibitors refer to Appendix 7.
All preventive and routine immunizations (e.g., tetanus/diphtheria booster, herpes zoster, 
pneumococcal pneumonia, or influenza) should preferentially be administered at least 28 days 
prior to initiation of study treatment. If an immunization is needed during the study, it should 
not be administered during the DLT assessment period in the dose escalation Part A, prior to 
completion of Cycle 2 Day 2 in the dose expansion Part B, or immediately following resolution of 
a CRS event of Grade ≥2. The timing of the vaccination should allow recovery of all AEs from 
previous study drug administration and should not lead to a dose delay, allowing for the 
resolution of vaccine related events. Vaccination with a live or live-attenuated vaccine is not 
permitted within 28 days prior to initiation of study treatment and during study treatment.
The use of the following therapies is prohibited during the study and for at least 21 days
prior to initiation of study treatment, unless otherwise specified:

Investigational or unlicensed/unapproved agents

Immunotherapy/radio-immunotherapy

Chemotherapy


RO7119929—F. Hoffmann-La Roche Ltd
71/Protocol WP41377, Version 3

Immuno-stimulatory agents

Radiotherapy (with the exception of limited field palliative radiotherapy)

Biologic agents

Immunosuppressive medications, including but not limited to cyclophosphamide, 
azathioprine, methotrexate, and thalidomide. Systemic corticosteroids, TNF-α 
inhibitors, mycophenolate, and other immune suppressants may be administered for 
the treatment of immune-related toxicities at the discretion of the treating physician 
after consultation with the Medical Monitor.
6.6
DOSE MODIFICATION
No intra-participant dose escalations will be permitted before the first tumor assessment 
on treatment as indicated in the SoA. Intra-participant dose escalations after the first 
tumor assessment will be permitted at the discretion of the Investigator and in 
agreement with the Sponsor. Participants may receive a dose of RO7119929 that is at 
least one dose level below the highest currently evaluated dose in the dose escalation with 
the same schedule, if that dose has been considered safe. Dose escalations will only be 
allowed to occur at the beginning of a treatment cycle.
During the DLT assessment period of the dose escalation schedules (Part A) participants who 
experience toxicities fulfilling the definition of a DLT (see definition in Section 4.1.3.2)
may be considered for continued study treatment at a reduced dose, following regression of 
toxicity to Grade 1 if deemed in the best interest of the participant by the Investigator and 
agreed with the Sponsor.
In Part A, and Part B, after the occurrence of a toxicity that requires withholding of study 
treatment, participants may restart RO7119929 therapy at the cohort-identified dose 
once the toxicity resolves to Grade ≤ 1 or baseline. For details regarding management of 
specific AEs and treatment re-initiation, see Section 8.3.9, Table 9. 
After discussion with the Sponsor, RO7119929 treatment may also be resumed at a 
lower dose if the participant is deriving clinical benefit and a toxicity is judged to be 
significant in the opinion of the Investigator whereby the Investigator does not wish to 
dose at the same dosing level. In case a dose reduction is necessary, the study 
treatment will be administered at a dose level that is between 30% and 80% of the 
current dose taken by the participant and has been considered safe. No intra-participant 
dose re-escalations are allowed, and the dose may not be reduced more than three 
times for a participant. For temporary dose interruptions, see Section 7.1.1.
6.7
TREATMENT AFTER THE END OF THE STUDY
The Sponsor does not intend to provide RO7119929 or other study interventions to 
participants after conclusion of the study or any earlier participant withdrawal.


RO7119929—F. Hoffmann-La Roche Ltd
72/Protocol WP41377, Version 3
7.
DISCONTINUATION OF STUDY, STUDY TREATMENT AND
PARTICIPANT DISCONTINUATION/WITHDRAWAL
An excessive rate of withdrawals (either participants discontinuing study treatment or 
withdrawing from the study) can render the study non-interpretable. Therefore, 
unnecessary withdrawal of participants should be avoided and efforts should be taken to 
motivate participants to comply with all the study-specific procedures as outlined in this 
protocol.
Details on study and site closures are provided in Appendix 1 Study Governance 
Considerations Study.
7.1
DISCONTINUATION OF STUDY TREATMENT
For data to be collected at the time of treatment discontinuation and follow-up and for 
any further evaluations that need to be completed see the SoA (Section 1.3).
Reasons for discontinuation of study treatment (or withdrawal from the study) may 
include, but are not limited to, the following:

Participant withdrawal of consent at any time.

DLT as defined in Section 4.1.3.2.

Any medical condition that the Investigator or Sponsor determines may jeopardize 
the participant’s safety if he or she continues in the study.

Disease progression when there is a consensus between the Investigator and the 
Sponsor that the participant will not benefit from study treatment.

Investigator or Sponsor determination that treatment discontinuation is in the best 
interest of the participant.

Pregnancy.

Any event that meets stopping criteria defined in Section 4.1.4.
As with other immunotherapies, treatment beyond RECIST v1.1 progression may be 
considered following discussion between the Investigator and the Sponsor. The criteria 
below are needed for continuing treatment beyond initial apparent progressive disease 
per RECIST v1.1:

Absence of clinical deterioration and Investigator-assessed clinical benefit for the 
participant.

The participant is tolerating study drugs.
Every effort should be made to obtain information on participants who withdraw from the 
study treatment but have not withdrawn consent. Participants who discontinue study 
treatment prematurely will be asked to return to the clinic for a study completion/early 
termination visit (see Section 8.11.3) and may undergo follow-up assessments (see 
Section 8.11.4), unless the participant withdrew consent. The primary reason for 


RO7119929—F. Hoffmann-La Roche Ltd
73/Protocol WP41377, Version 3
premature study treatment discontinuation should be documented on the appropriate 
eCRF. Participants who discontinue study treatment prematurely may be replaced at 
discretion of the Sponsor.
7.1.1
Temporary Interruption
Before permanently discontinuing study treatment (regardless of whether initiated by the 
participant, the Investigator or Sponsor), an interruption should be considered. 
Participants, who have temporarily interrupted study treatment should be considered to
restart as soon as medically justified in the opinion of the Investigator. For additional 
information on dose modifications, see Section 6.6. Restart of study treatment after a 
dose interruption of more than 3 weeks may be allowed, if the participant is benefitting 
from study treatment per Investigator and after consultation with the Sponsor.
If RO7119929 administration is delayed by more than 2 days from the schedule 
administration date, the dose will then be considered a missed dose. Administration may 
resume at the next planned dosing date. A missed dose of RO7119929 will not be made 
up.
Within Schedule 2 or Schedule 3, a participant may be required to repeat step-up dosing or 
tocilizumab pre-treatment following a dose interruption. If a participant missed one or more 
doses of RO7119929 within Schedule 2 or Schedule 3, the Investigator should consult with the 
Medical Monitor to determine if repeat step-up dosing or repeat tocilizumab pre-treatment is 
required. The Sponsor may also request the participant to repeat Cycle 1 assessments including 
local and central laboratory assessments.
7.1.2
Resumption of Study Treatment
If a participant experiences complete response (CR) or achieves maximum clinical 
benefit as determined by the Investigator and the Sponsor after an integrated 
assessment of radiographic data, biomarker results (if available), and clinical status,
study treatment may be paused at the discretion of the treating physician after 
consultation with the Medical Monitor. The participant may remain on study and be 
followed according to the SoA (Section 1.3). If the disease relapses or progresses, study 
treatment may be resumed after consultation with the Medical Monitor.


RO7119929—F. Hoffmann-La Roche Ltd
74/Protocol WP41377, Version 3
7.2
PARTICIPANT DISCONTINUATION/WITHDRAWAL FROM THE 
STUDY
Participants have the right to voluntarily withdraw from the study at any time for any 
reason.
In addition, the Investigator has the right to withdraw a participant from the study for 
medical conditions that the Investigator or Sponsor determines may jeopardize the 
participant’s safety if he/she continues in the study.
If possible, information on reason for withdrawal from the study should be obtained. The 
primary reason for withdrawal from the study should be documented on the appropriate 
eCRF. Participants will not be followed for any reason after consent has been withdrawn.
When a participant voluntarily withdraws from the study, or is withdrawn by the 
Investigator, samples collected until the date of withdrawal will be analyzed, unless the 
participant specifically requests for these to be discarded or local laws require their 
immediate destruction. However, if samples have been tested prior to withdrawal, results 
from those tests will be used as part of the overall research data. A participant’s 
withdrawal from this study does not, by itself, constitute withdrawal of samples donated 
to the Research Biosample Repository (RBR).
Participants who withdraw from the study for safety reasons will not be replaced. 
Participants who withdraw from the study for other reasons after the end of the DLT 
period will not be replaced.
For data to be collected at the time of study discontinuation, at safety and follow-up 
visits, and for any further evaluations that need to be completed, see SoA (Section 1.3).
If treatment is discontinued and consent has not been withdrawn, the participant will still 
be followed for survival endpoints.
Participants will be treated until progressive disease, unacceptable toxicities or 
withdrawal of consent up to a maximum of 12 months. This period can be prolonged if 
the participant derives a clinical benefit from the treatment after discussion with the 
Medical Monitor and approval by the Sponsor.
7.3
LOST TO FOLLOW-UP
A participant will be considered lost to follow-up if the participant repeatedly fails to 
return for scheduled visits and is unable to be contacted by the study site.
The following actions must be taken if a participant fails to return to the clinic for a 
required study visit:

The site must attempt to contact the participant and reschedule the missed visit as 
soon as possible.


RO7119929—F. Hoffmann-La Roche Ltd
75/Protocol WP41377, Version 3

Before a participant is deemed lost to follow-up, the Investigator or designee must 
make every effort to regain contact with the participant. These contact attempts 
should be documented in the participant’s medical record.

Should the participant continue to be unreachable, he/she will be considered to 
have withdrawn from the study.
Discontinuation of sites or of study as a whole are handled as part of Appendix 1.
8.
STUDY ASSESSMENTS AND PROCEDURES
Study procedures and their time-points are summarized in the SoA (Section 1.3). 
Protocol waivers or exemptions are not allowed. Any safety concerns should be 
discussed with the Sponsor immediately upon occurrence or awareness to determine if 
the participant should continue or discontinue study treatment.
Procedures conducted as part of the participant’s routine clinical management 
(e.g., blood count) and obtained before signing of the Informed Consent Form (ICF) may 
be utilized for screening or baseline purposes provided the procedure met the 
protocol-specified criteria and was performed within the time-frame defined in the SoA.
Samples for laboratory tests will be sent to one or several central laboratories or to the 
Sponsor for analysis. Instruction manuals and supply kits will be provided for all central 
laboratory assessments.
Based on continuous analysis of the data in this study, any sample type or biomarker 
evaluation not considered critical for safety may be stopped at any time if the data from 
the samples collected do not produce useful information.
Vital sign monitoring will be implemented for the different study schedules as follows:
After the first administration of RO7119929 at Cycle 1 Day 1 for flat dosing without 
(Schedule 1) or with (Schedule 3) tocilizumab pre-treatment, the participant will be 
hospitalized and observed by regular vital sign monitoring for at least 24 hours (at least 
every hour for the first 8 hours, then every 4 hours, and as clinically indicated). If the first 
dosing with RO7119929 is tolerated without AEs, further administrations of the drug will 
be monitored as follows:

Subsequent 3 doses (up to Cycle 2 Day 1): 8 hours of hourly vital sign monitoring
Note: In case of a second dose of tocilizumab pre-treatment provided on Cycle 1 Day 15 
(Schedule 3), 8 hours of hourly vital sign monitoring is also required at Cycle 2 Day 8.

Subsequent 8 doses (up to Cycle 4 Day 15): 2 hours of hourly vital sign monitoring

All subsequent doses: no vital sign monitoring


RO7119929—F. Hoffmann-La Roche Ltd
76/Protocol WP41377, Version 3
After the first two administrations of RO7119929 at Cycle 1 Day 8 and Day 15 for step-up 
dosing (Schedule 2), 8 hours of hourly vital sign monitoring are required. After administration of 
RO7119929 at the target dose at Cycle 1 Day 15, the participant will be hospitalized and 
observed by regular vital sign monitoring for at least 24 hours (at least every hour for the first 8 
hours, then every 4 hours, and as clinically indicated). If the first target dosing with RO7119929 
is tolerated without AEs, further administrations of the drug will be monitored as follows:

Subsequent dose (Cycle 2 Day 1) and Cycle 2 Day 15: 8 hours of hourly vital sign 
monitoring

Cycle 2 Day 8 and Cycle 3 Day 1 to Cycle 4 Day 15: 2 hours of hourly vital sign monitoring

All subsequent doses: no vital sign monitoring
8.1
EFFICACY ASSESSMENTS
8.1.1
Tumor and Response Evaluations
Tumor assessments will be performed at the time-points defined in the SoA 
(Section 1.3). All known sites of disease must be documented at screening and re-
assessed at each subsequent tumor evaluation. Response assessments will be 
performed according to the RECIST v1.1, and at least one hepatic target lesion needs to 
be defined (see Appendix 8).
The extent of neoplastic disease will be determined by reproducible radiographic 
techniques, preferably computed tomography (CT) or magnetic resonance imaging 
(MRI) scan. Ultrasound and X-rays are not acceptable for monitoring target lesions.
Computed Tomography or MRI scans should include chest, abdomen, and pelvic scans, 
with additional examinations performed if clinically indicated (e.g., bone scans and CT 
scans of the neck).
All known and suspected areas of neoplastic disease will be evaluated. For each 
participant, the same method of assessment and the same technique must be used 
consistently throughout the entire study. Use of spiral CT or MRI is required for 
screening lesions 20 mm and must be documented in medical records and used 
consistently throughout the study.
The use of oral and IV contrast media should, as long as it is clinically possible, be kept 
consistent. MRIs of the abdomen, and pelvis with non-contrast CT scan of the chest may 
be used in participants for whom CT scans with contrast are contraindicated 
(i.e., participants with contrast allergy or impaired renal clearance).
If a CT scan for tumor assessment is performed using a positron emission tomography 
(PET)/CT scanner, the CT should be of identical diagnostic quality as a full-contrast 
diagnostic CT scan.


RO7119929—F. Hoffmann-La Roche Ltd
77/Protocol WP41377, Version 3
Assessments should be performed by the same evaluator if possible to ensure internal 
consistency across visits.
In case of clinically measurable superficial (such as skin) lesions, repeated photographs 
should be used to document tumor response. These photos must include a ruler for 
documentation purposes. Participants with known or suspected bone metastases should 
undergo radionuclide bone scanning.
At the Investigator’s discretion, CT scans may be repeated at any time if progressive
disease is suspected.
The data collected for RECIST v1.1 may be used by the Sponsor to calculate time point 
responses for iRECIST, a recently published set of guidelines developed by the RECIST 
working group in an effort to harmonize immune-based response criteria across the 
academic and industrial cancer immunotherapy field (Seymour et al 2017; Appendix 9).
Time point responses will also be calculated for hepatic and extra-hepatic lesions 
separately according to RECIST v1.1 and optionally iRECIST. 
In addition to RECIST v1.1 and iRECIST, further analysis of the CT/MRI scans might be 
performed by the Sponsor to further elucidate the drug effect. For that purpose, the 
CT/MRI images collected for RECIST v1.1 will de-identified at the site and securely 
transmitted to the Sponsor. 
Because of possible delayed onset of tumor response associated with immunotherapy 
treatment, as well as borderline progression, apparent radiologic progression with 
improving clinical status or mixed responses, in the absence of clinical deterioration, any 
initial assessment of radiological progressive disease should be confirmed by a repeat 
evaluation at the next time point for tumor assessment. As with other immunotherapies, 
treatment beyond RECIST progression could be considered after approval of the 
Sponsor. The criteria needed for continuing treatment beyond initial apparent 
progressive disease (e.g., radiological progression secondary to tumor inflammation) are 
described in Section 7.1.
Participants who permanently discontinue study treatment without radiologically defined 
progression will continue tumor radiological assessments in the post treatment follow-up 
phase until disease progression is confirmed or a new anti-cancer therapy is started.
8.2
SAFETY ASSESSMENTS
Planned time points for all safety assessments are provided in the SoA (Section 1.3).
Safety assessments will consist of monitoring and recording AEs, including serious 
adverse events (SAEs) and non-serious adverse events of special interest (NSAESI),
measurement of protocol-specified safety laboratory assessments, measurement of 


RO7119929—F. Hoffmann-La Roche Ltd
78/Protocol WP41377, Version 3
protocol-specified vital signs, ECGs, and other protocol-specified tests that are deemed 
critical to the safety evaluation of the study.
8.2.1
Physical Examinations
A complete physical examination will be conducted at screening and at the end-of-
treatment period, and will include, at a minimum, assessments of the cardiovascular, 
respiratory, gastrointestinal, dermatological, neurological, and musculoskeletal systems 
in addition to head, eyes, ears, nose, throat, neck and lymph nodes. Examination of 
other body systems may be performed in case of evocative symptoms at the 
Investigator’s discretion. Any abnormality identified at screening should be recorded on 
the General Medical History and Baseline Conditions eCRF.
At other visits, limited, symptom-directed physical examinations should be performed 
when clinically indicated. Changes from baseline abnormalities should be recorded in 
participants’ notes. New or worsened clinically significant abnormalities should be 
recorded as adverse events on the Adverse Event eCRF. Investigators should pay 
special attention to clinical signs related to previous serious illnesses.
Height and weight will be recorded at the time points indicated in the SoA (Section 1.3).
8.2.2
Vital Signs
Vital signs (temperature, heart rate, respiratory rate, oxygen saturation, and systolic and 
diastolic blood pressure) will be assessed after the participant has been resting in a 
supine or sitting position for a period of at least 5 minutes prior to a blood draw or at 
least 10 minutes following a blood draw. Blood pressure (systolic and diastolic), heart 
rate, respiratory rate, oxygen saturation, and body temperature (oral or tympanic) will be 
recorded at the time points specified in the SoA (Section 1.3).
Blood pressure and pulse measurements will be assessed with a well-calibrated 
automatic instrument with a digital readout. Manual techniques will be used only if an 
automated device is not available. When measuring blood pressure, the participant's 
arm should be unconstrained by clothing or other material and the participant should be 
comfortably seated, with the legs uncrossed, and the back and arm supported, such that 
the middle of the cuff on the upper arm is at the level of the right atrium (the mid-point of 
the sternum). The ideal cuff should have a bladder length that is 80% and a width that is 
at least 40% of arm circumference (a length-to-width ratio of 2).
8.2.3
Electrocardiograms
Triplicate 12-lead ECG will be obtained as outlined in the SoA (Section 1.3) using an 
ECG machine that automatically calculates the heart rate and measures pulse rate, 
QRS, QT, and QT corrected for heart rate (QTc) intervals. To minimize variability, it is 
important that participants be in a resting position for at least 10 minutes prior to each 
ECG evaluation. Body position should be consistently maintained for each ECG 
evaluation to prevent changes in heart rate. Environmental distractions (e.g., television, 


RO7119929—F. Hoffmann-La Roche Ltd
79/Protocol WP41377, Version 3
radio, conversation) should be avoided during the pre-ECG resting period and during 
ECG recording. ECGs should be performed prior to blood draws for PK/PD samples at 
the same time point. In case of an absolute QTc of >500 msec and an increase from 
baseline QTc >60 msec, another triplicate ECG must be recorded within the next 
30 minutes. It may be appropriate to repeat abnormal ECGs to rule out improper lead 
placement potentially contributing to the ECG abnormality. 
For safety monitoring purposes, the Investigator or designee must review, sign, and date 
all ECG tracings. Paper or electronic copies will be kept as part of the participant’s 
permanent study file at the site. If considered appropriate by the Sponsor, ECGs may be 
analyzed retrospectively at a central laboratory.
ECG characteristics, including heart rate, QRS duration, pulse rate, and QT intervals, 
will be recorded on the eCRF. QTcF (Fridericia’s correction) and RR interval will be 
automatically calculated and recorded on the eCRF. Changes in T-wave and U-wave 
morphology and overall ECG interpretation will be documented. T-wave information will 
be captured as normal or abnormal, U-wave information will be captured in two 
categories: absent/normal or abnormal.
8.2.4
Echocardiogram/MUGA
Participants will undergo evaluation of left ventricular ejection fraction (LVEF), either by 
echocardiogram, or MUGA, at specified time points during the study (see SoA in 
Section 1.3), and as clinically indicated for new or worsening symptoms. Any participant 
who develops clinical signs or symptoms suspicious of cardiac failure should undergo an 
LVEF re-assessment and further cardiovascular consultation, as needed. Evaluation of 
left ventricular function must be performed using the same method for each participant.
In case the MUGA scan cannot be replaced by an Echocardiogram, the scan must be 
performed at least 3 days prior to Cycle 1 Day 1 and at least 3 days prior to the fresh 
tumor biopsy, if applicable, to allow collection and immediate shipments of sensitive 
PD/biomarker samples (i.e. tumor biopsies, PD whole blood FACS).
8.2.5
Ophthalmological Examination
All participants should have a comprehensive ophthalmological evaluation, including 
medical history (applicable at baseline) and physical examination related to eye 
disorders, visual acuity, visual field testing, and ophthalmoscopy (including dilated
fundoscopy at the timepoints indicated in the SoA (Section 1.3).
8.2.6
Clinical Safety Laboratory Assessments
Normal ranges for the study laboratory parameters must be supplied to the Sponsor 
before the study starts. A list of clinical laboratory tests to be performed is provided in 
Appendix 4 and these assessments must be conducted in accordance with the separate 
laboratory manual and the SoA (Section 1.3).


RO7119929—F. Hoffmann-La Roche Ltd
80/Protocol WP41377, Version 3
The Investigator must review the laboratory report, document this review, and record any 
clinically relevant changes occurring during the study in the AE section of the CRF. The 
laboratory reports must be filed with the source documents. Clinically significant 
abnormal laboratory findings are findings that are not associated with the underlying 
disease, unless judged by the Investigator to be more severe than expected for the 
participant's condition.

In the event of unexplained abnormal clinically significant laboratory test values, the 
tests should be repeated immediately and followed up until they have returned to 
the normal range and/or an adequate explanation of the abnormality is found.

If such values do not return to normal/baseline within a period of time judged 
reasonable by the Investigator, the etiology should be identified and the Sponsor 
notified.

If laboratory values from non-protocol specified laboratory assessments performed 
at the local laboratory require a change in participant management or are 
considered clinically significant by the Investigator (e.g., SAE or AE or 
dose-modification), the results must be recorded in the eCRF.
Results of clinical laboratory testing will be recorded on the eCRF or be received as 
electronically produced laboratory reports submitted directly from the local or central 
laboratory.
Additional blood or urine samples may be taken at the discretion of the Investigator if the 
results of any test fall outside the reference ranges, or clinical symptoms necessitate 
additional testing to monitor participant safety.
Where the clinical significance of abnormal lab results at screening is considered 
uncertain, screening lab tests may be repeated before randomization to confirm 
eligibility.
If there is an alternative explanation for a positive urine or blood test for drugs of abuse, 
e.g., previous occasional intake of a medication or food containing for example, codeine, 
benzodiazepines or opiates, the test could be repeated to confirm washout.
Based on continuous analysis of the data in this study and other studies, any sample 
type not considered to be critical for safety may be stopped at any time if the data from 
the samples collected does not produce useful information.
8.2.7
PCR Testing for Participants with Resolved Hepatitis B and 
Hepatitis C
Participants with active, past or resolved hepatitis B infection who are admitted to the 
study will undergo periodic PCR testing to exclude HBV replication during the study. 
Similarly, periodic HCV RNA test will be performed during the study for participants who 
have tested positive for HCV antibody but negative for HCV RNA at study entry. 


RO7119929—F. Hoffmann-La Roche Ltd
81/Protocol WP41377, Version 3
Frequency of periodic PCR testing for HBV and HCV is provided in the SoA 
(Section 1.3).
8.2.8
Medical History and Demographic Data
Medical history includes demographics, history of malignancy, previous treatment(s) for 
malignancy, concomitant diseases, previous surgeries, medication, allergies, 
reproductive status, alcohol consumption, and smoking habits.
Demographic data will include age, sex, and self-reported race/ethnicity.
8.3
ADVERSE EVENTS AND SERIOUS ADVERSE EVENTS
The definitions of an AE or SAE can be found in Appendix 2. The NSAESI and disease-
related events and/or disease-related outcomes not qualifying as AEs or SAEs are 
discussed in Section 8.3.6 and Section 8.3.8.
The Investigator and any qualified designees are responsible for ensuring that all 
adverse events (including assessment of seriousness, severity and causality; see 
Appendix 2) are recorded on the Adverse Event eCRF and reported to the Sponsor in 
accordance with instructions provided in this section and in Appendix 2.
Procedures used for recording adverse events are provided in Appendix 3.
8.3.1
Time Period and Frequency for Collecting Adverse Event and 
Serious Adverse Event Information
The method of recording, evaluating, and assessing causality of AEs and SAEs and the 
procedures for completing and transmitting SAE reports are provided in Appendix 2.
Investigators will seek information on adverse events at each participant’s contact. All 
adverse events, whether reported by the participant or noted by study personnel, will be 
recorded in the participant’s medical record and on the Adverse Event eCRF as follows:
After informed consent has been obtained but prior to initiation of study treatment, 
only serious adverse events caused by a protocol-mandated intervention should be 
reported (e.g., serious adverse events related to invasive procedures such as biopsies). 
Any other adverse event should not be reported.
After initiation of study treatment, all adverse events, regardless of relationship to 
study treatment, will be reported until 60 days after the final dose of study treatment. 
Post-study adverse events and serious adverse events: The Investigator is not 
required to actively monitor participants for adverse events after the end of the adverse 
event reporting period, defined as 60 days after the last dose of study drug or until the 
start of another anti-cancer therapy, whichever comes first.


RO7119929—F. Hoffmann-La Roche Ltd
82/Protocol WP41377, Version 3
However, if the Investigator learns of any SAE (including a death) or other adverse 
events of concern that are believed to be related to prior treatment with study treatment, 
at any time after a participant has been discharged from the study, and the Investigator 
considers the event to be reasonably related to the study treatment or study 
participation, the Investigator must promptly notify the Sponsor. For the procedure of 
reporting, see Appendix 2.
8.3.2
Method of Detecting Adverse Events and Serious Adverse 
Events
Care will be taken not to introduce bias when detecting AEs and/or SAEs. Open-ended 
and non-leading verbal questioning of the participant is the preferred method to inquire 
about AE occurrence.
A consistent methodology of non-directive questioning should be adopted for eliciting
adverse event information at all participant evaluation time-points.
8.3.3
Follow-Up of Adverse Events and Serious Adverse Events
8.3.3.1
Investigator Follow-Up
The Investigator should follow each adverse event until the event has resolved to 
baseline grade or better, the event is assessed as stable by the Investigator, the event is 
otherwise explained, the participant is lost to follow-up (Section 7.3), or the participant 
withdraws consent. Every effort should be made to follow all serious adverse events 
considered to be related to study treatment or trial-related procedures until a final 
outcome can be reported.
During the study period, resolution of adverse events (with dates) should be documented 
on the Adverse Event eCRF and in the participant’s medical record to facilitate source 
data verification. If, after follow-up, return to baseline status or stabilization cannot be 
established, an explanation should be recorded on the Adverse Event eCRF.
All pregnancies reported during the study should be followed until pregnancy outcome 
and reported according to the instructions provided in Section 8.3.5.
8.3.3.2
Sponsor Follow-Up
For serious adverse events, NSAESI, and pregnancies, the Sponsor or a 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, autopsy reports) in order to perform an independent medical 
assessment of the reported case.
8.3.4
Regulatory Reporting Requirements for Serious Adverse 
Events
Prompt notification by the Investigator to the Sponsor of a SAE is essential so that legal 
obligations and ethical responsibilities towards the safety of participants and the safety 
of a study treatment under clinical investigation are met.


RO7119929—F. Hoffmann-La Roche Ltd
83/Protocol WP41377, Version 3
The Sponsor has a legal responsibility to notify both the local regulatory authority and 
other regulatory agencies about the safety of a study treatment under clinical 
investigation. The Sponsor will comply with country-specific regulatory requirements 
relating to safety reporting to the regulatory authority, Institutional Review Boards 
(IRB)/Independent Ethics Committees (IEC), and investigators. 
Investigator safety reports must be prepared for suspected unexpected serious adverse 
reactions according to local regulatory requirements and Sponsor policy and forwarded 
to Investigators as necessary. 
An Investigator who receives an investigator safety report describing a SAE or other 
specific safety information (e.g., summary or listing of SAEs) from the Sponsor will 
review and then, file it along with the Investigator’s Brochure and will notify the IRB/IEC, 
if appropriate according to local requirements.
For immediate and expedited reporting requirements from Investigator to Sponsor and 
from Sponsor to Health Authority, Investigators, IRB and EC, see Appendix 2.
8.3.4.1
Emergency Medical Contacts
To ensure the safety of study participants, access to the Medical Monitors is available 
24 hours a day 7 days a week. Medical Monitors contact details will be available on a 
separate list generated by the study management team.
8.3.5
Pregnancy
Female participants of childbearing potential will be instructed to immediately inform the 
Investigator if they become pregnant during the study or within 30 days after the final 
dose of RO7119929 or 3 months after the final dose of tocilizumab, as applicable 
(whichever is longer).
Male participants will be instructed through the Informed Consent Form to immediately 
inform the Investigator if their partner becomes pregnant during the study or within 
30 days after the final dose of RO7119929 or 60 days after the final dose of tocilizumab, 
as applicable
If a pregnancy is reported, the Investigator should inform the Sponsor within 24 hours of 
learning of the pregnancy and should follow the pregnancy reporting process as detailed 
in Appendix 5.
Abnormal pregnancy outcomes (e.g., spontaneous abortion, fetal death, stillbirth, 
congenital anomalies, and ectopic pregnancy) are considered SAEs (Appendix 5).


RO7119929—F. Hoffmann-La Roche Ltd
84/Protocol WP41377, Version 3
8.3.6
Non-Serious Adverse Events of Special Interest
Non-serious adverse events of special interest are required to be reported by the 
Investigator to the Sponsor immediately (i.e., no more than 24 hours after learning of the 
event; see Appendix 2 for reporting instructions).
Non-serious adverse events of special interest for this study include the following:

Suspected transmission of an infectious agent by the study treatment, as defined 
below:

Any organism, virus, or infectious particle (e.g., prion protein transmitting 
transmissible spongiform encephalopathy), pathogenic or non-pathogenic, is 
considered an infectious agent. A transmission of an infectious agent may be 
suspected from clinical symptoms or laboratory findings that indicate an infection in 
a participant exposed to a medicinal product. This term applies only when a 
contamination of the study treatment is suspected.

Hepatitis, including AST or ALT 10 ULN or cases of an elevated ALT or AST in 
combination with either an elevated bilirubin or clinical jaundice, as defined in 
Section 6 of Appendix 3.

Grade 3 hematology lab abnormalities (e.g., lymphopenia, neutropenia, 
leukopenia)
8.3.7
Dose-Limiting Toxicities (Immediately Reportable to the 
Sponsor)
During the DLT assessment window, adverse events identified as DLTs, as defined in
Section 4.1.3, are required to be reported by the Investigator to the Sponsor immediately 
(i.e., no more than 24 hours after learning of the event; see Appendix 2, Section 5 for 
reporting instructions).
8.3.8
Disease-Related Events and/or Disease-Related Outcomes Not 
Qualifying as AEs or SAEs
Not applicable.
8.3.9
Management of Specific Adverse Events
Guidelines for management of specific adverse events are provided in Table 9.
For dose modifications, please refer to Section 6.6.


RO7119929—F. Hoffmann-La Roche Ltd
85/Protocol WP41377, Version 3
Table 9
Guidelines for Managing Specific Adverse Events
Event
Action to Be Taken
Actions for Next Dose of Study Medication
Cytokine Release 
Syndrome (CRS) 
Grade 1 (Fever with or 
without constitutional 
symptoms)

Symptomatic management of constitutional symptoms
including paracetamol and antiemetics

Continue treatment at the next planned dose upon 
resolution of symptoms

Consider pre-medication with paracetamol 500-1000 mg PO 
or IV at the time of drug administration, followed by 500-
1000 mg paracetamol PO or IV 4-6 hours after first drug 
administration.
CRS Grade 2 (Fever, 
hypotension responding 
to fluids; hypoxia 
responding to <40% O2)

Follow CRS Grade 1 recommendations

Monitor cardiac and other organ function closely (in ICU if 
appropriate)1
manage constitutional symptoms and organ toxicities as 
required

For hypotension: IV fluid bolus 250–500 mL as needed, 
based on hemodynamic status per Investigator’s clinical 
judgment

For hypoxia: Treat with low-flow oxygen3

For refractory or unstable hypotension or prolonged CRS 
Grade 2 (>2 days), or in participants with significant 
symptoms and/or comorbidities (per Investigators discretion, 
e.g., impaired cardiovascular function, reduced pulmonary 
reserve), consider administration of tocilizumab and/or 
corticosteroids (e.g., methylprednisolone 2 mg/kg/d or 
dexamethasone 10 mg IV every 6 hours). 4

Collect cytokine panel (unscheduled PD plasma samples) per 
schedule of assessments in Section 1.3

May receive next planned dose if symptoms resolve to 
Grade 1 for three consecutive days. The dose for the 
subsequent administration should be discussed with the
Medical Monitor.

Hospital monitoring for the next dose for 8-24 hours after 
dosing 2

Administer pre-treatment with 500 mL crystalloid fluid and 
paracetamol 500-1000 mg PO or IV at the time of drug 
administration (30 minutes), followed by 500-1000 mg 
paracetamol PO or IV 4-6 hours after first drug 
administration.


RO7119929—F. Hoffmann-La Roche Ltd
86/Protocol WP41377, Version 3
Event
Action to Be Taken
Actions for Next Dose of Study Medication
CRS Grade 3 
(Hypotension managed 
with one pressor; 
hypoxia requiring 
40% O2)

Follow CRS Grade 1 recommendations

Recommend admission to ICU for hemodynamic and 
organ function monitoring1

For hypotension: IV fluid bolus as described in Grade 2 
and vasopressor support as needed

For hypoxia: Treat with low-flow oxygen 3

Administer tocilizumab and IV corticosteroids (e.g., 
methylprednisolone 2 mg/kg/d or dexamethasone 10 mg 
IV every 6 hours 4

Collect cytokine panel (unscheduled PD plasma) per 
schedule of assessments in Section 1.3

Hospitalization until complete resolution of signs/symptoms

May receive next planned dose if symptoms resolve to Grade 
1 for three consecutive days and positive benefit risk 
assessment by the Investigator in consultation with the 
Sponsor. The dose for the subsequent administration should 
be discussed with the Medical Monitor.

Hospital monitoring for the next dose for at least 24 hours 
after dosing2

Administer pre-treatment with 500 mL crystalloid fluid and 
500-1000 mg paracetamol PO or IV at the time of drug 
administration (30 minutes), followed by 500-1000 mg 
paracetamol PO or IV 4-6 hours after first administration
CRS Grade 4 (Life-
threatening
consequences; urgent
intervention indicated)

Follow CRS Grade 3 recommendations

Participant requires ICU admission and hemodynamic 
monitoring, and/or mechanical ventilation, and/or IV fluids 
and vasopressors as needed

Discontinue treatment
Other non-hematologic 
toxicities: Grade 3 or 4

Hold all study treatments until improvement to Grade 1 or baseline

If improvement to Grade 1 or baseline does not occur within 3 weeks, discontinue study treatment. Longer 
delays may be allowed after approval from the Sponsor in cases where the participant is deriving clinical benefit 
from treatment and the Investigator and Sponsor both feel that the benefits of continued treatment outweigh the 
risks.


RO7119929—F. Hoffmann-La Roche Ltd
87/Protocol WP41377, Version 3
CRS=cytokine release syndrome; ICU=intensive care unit; IV=intravenous; PO=orally (per os).
Note: A hematologic toxicity is defined as neutropenia, anemia, or thrombocytopenia.
1 If Grade 2 CRS is observed after administration of RO7119929 at any given dose, the participant should be hospitalized and observed by regular vital sign 
monitoring until complete resolution of symptoms. Documentation of vital signs including oxygen saturation in the eCRF is required at least every 2-4 hours 
and as clinically indicated.
2 Vital sign monitoring hourly for the first 8 hours, then every 4 hours if participant continues to be hospitalized, and as clinically indicated
3 Low-flow nasal cannula is defined as oxygen delivery at 6 L/min and may include blow-by oxygen delivery. High-flow nasal cannula is defined as oxygen 
delivered at >6 L/min.
4 Tocilizumab should be administered at a dose of 8 mg/kg IV (8 mg/kg for participants 30 kg weight only; 12 mg/kg for participants< 30 kg weight; doses 
exceeding 800 mg per infusion are not recommended); repeat every 8 hours as necessary (up to a maximum of four doses); refer to Appendix 13, Schedule of 
Activities for Tocilizumab Treatment for Severe or Life-Threatening Cytokine Release Syndrome.


RO7119929—F. Hoffmann-La Roche Ltd
88/Protocol WP41377, Version 3
CRS is by definition a syndrome that could present with a variety of signs or symptoms 
including pyrexia (with or without chills), rigors, dyspnea, tachypnea and hypoxia, 
hypotension, tachycardia, GI symptoms (nausea, vomiting, anorexia, and diarrhea), 
fatigue, myalgia and arthralgia, rash, and headache. For all events with clinical 
presentation of CRS after RO7119929 administration, the event should be reported 
using the preferred term “cytokine release syndrome” and not “flu like symptoms”. It is 
anticipated that with the mechanism of action of RO7119929, clinical signs and 
symptoms of CRS will be actually dependent on a systemic increase of cytokines, and 
therefore the most appropriate term for reporting is “cytokine release syndrome”.
Consistent with the TLR7 mechanism of action, CRS and flu like symptoms have been 
reported with systemic TLR7 agonists and IFN-α therapies in humans. In general, these 
symptoms were dose-dependent and commonly reported as flu like symptoms (Dudek et 
al 2007, Dummer et al 2008, Meyer et al 2008, Geller et al 2010, Gane et al 2015, 
Agarwal et al 2018). Only rare cases of CRS associated with hypotension requiring 
hospitalization and intravenous infusion have been reported with TLR7 agonists after the 
first dose (including a case of 5-fold overdosing) or second dose (Goldstein et al 1998,
Janssen et al 2018, Fidock et al 2011). Only two cases with grade 3/4 CRS have been 
reported in the literature to date. These subjects were treated with a TLR7/8 dual 
agonist, and treatment was subsequently discontinued in one subject. No corresponding 
cytokine data have been published, and thus the correlation between systemic cytokine 
levels in humans after TLR7 agonist administration and occurrence of high grade CRS 
are unknown (Gupta et al 2017).
In vitro tests with RO7117418, the active drug of the pro-drug RO7119929, as well as in
vivo tests with RO7119929 in cynomolgus monkeys showed a dose-dependent release
of different pro-inflammatory cytokines including IFN-α, IP-10, TNF-α, and IL-6, a pattern
in line with the mode of action expected for a TLR7 agonist (O’Neill et al 2013).
Based on the clinical and biomarker results gathered from the participants treated in Part A
Schedule 1, CRS has been identified as a dose-dependent risk for treatment with RO7119929, and 
high levels of IL-6 have been observed in participants developing CRS Grade ≥2 (see the
Investigator’s Brochure for details).
For the management of AEs specific to tocilizumab, see the Investigator’s Brochure and 
local prescribing information.
8.4
TREATMENT OF OVERDOSE
Any dose, which is above the planned dose (e.g., the weekly dose taken at once), will be 
considered an overdose.
The Sponsor does not recommend specific treatment for an overdose.


RO7119929—F. Hoffmann-La Roche Ltd
89/Protocol WP41377, Version 3
8.5
PHARMACOKINETICS
Mandatory blood samples to evaluate plasma concentrations of study treatment 
RO7119929 and its metabolite, RO7117418 (active drug) will be collected. The date and 
time of each sample collection will be recorded in the eCRF. RO7119929 and 
RO7117418 levels will be analyzed by using validated assays. The PK samples will be 
taken as outlined in the SoAs (see Section 1.3). During the course of the study, PK 
sampling time-points may be modified based on emerging data to ensure the 
pharmacokinetics of RO7119929 and RO7117418 can be adequately characterized. 
Unscheduled PK samples will be taken at the time of the development of any events 
listed in Section 4.2.3.

RO7117418: Metabolite (active drug) is measured by a specific validated liquid 
chromatography-tandem mass spectrometry (LC-MS/MS) assay.

Any volume of blood samples remaining after the specified analyses may also be 
used for retrospective and longitudinal testing of SARS-CoV-2 or other bacterial or 
viral infections (see Section 8.7) with serological methods or additional validation 
experiments, e.g., exploratory metabolite identification.
The PK blood samples will be destroyed after the date of final clinical study report or 
after approval by the study management team, or earlier depending on local regulations. 
Details on sampling procedures, sample storage, and shipment are given in the sample 
documentation.
8.6
IMMUNOGENICITY
Not applicable.
8.7
PHARMACODYNAMICS AND BIOMARKERS ANALYSES
The PD outcome measures for the dose escalation Part A of this study are:

Whole blood samples (PD blood [RNA], see Section 1.3) will be analyzed for 
RO7119929 mediated, dose/exposure dependent changes in interferon stimulated 
genes such as, but not limited to ISG15 but also MX1 and OAS1 in Cycle 1 and 
Cycle 2.

Cytokine induction such as IFN-will be monitored in plasma for RO7119929 
mediated, dose/exposure dependent changes (PD plasma [safety], PD plasma, see 
Section 1.3) and in the context of safety related pharmacodynamic changes, in IL-6, 
IL-8, IP-10, TNFand sCD25 at the same time points in Cycle 1 and Cycle 2.

One pre- and on-treatment whole blood sample (PD blood [DNA], see Section 1.3) 
will be collected for PoM gated analysis of changes in the peripheral T cell V
repertoire. This may serve as a surrogate marker for tissue related PoM.

Whole blood pre-treatment DNA samples (blood [DNA], see Section 1.3) will be 
assessed for gene polymorphisms including but not limited to TLR7, CYP2C9, 
CYP2C19, UGT1A9, and UGT1A1 as potential response or safety prediction 
markers. 


RO7119929—F. Hoffmann-La Roche Ltd
90/Protocol WP41377, Version 3

Residual plasma and serum samples (e.g., from PK and/or PD assessments) may 
be used for retrospective and longitudinal testing of SARS-CoV-2 infection or other
bacterial or viral infections with serological methods. This testing may be performed 
for each participant. In addition to serving as an important safety measure, these 
analyses will inform any association of SARS-CoV-2 (or other bacterial or viral 
infections) infection and response to treatment.
In addition to PD sampling in Part A, the PoM PD outcome measures for Part B of this 
study are:

Paired fresh pre-treatment (baseline/screening) and on-treatment biopsies (Cycle 2 
Day 2) from the hepatic tumor manifestation are mandatory for all participants in the 
expansion part of the study (Part B see Section 1.3 and Section 8.8.1.3). Tissue will be 
assessed for changes associated to the immune system (e.g., immunostimulatory 
cytokines/chemokines) via RNA based analysis, number, activation status and 
spatial location of TILs, as well as additional tumor markers such as PD-L1 and FAP
expression. Additional exploratory protein, DNA or RNA based analysis to identify 
potential response prediction or resistance biomarkers may be performed on 
residual tissue.

Immunophenotyping using protein based analysis methods from whole blood 
samples (PD whole blood FACS, see Section 1.3) to characterize the phenotype 
and functional status of peripheral immune cells will be performed from all 
participants in Part B.
Response prediction markers for Parts A and B of the study are:

Archival tissue (if available) must be submitted within 2 months of enrollment to 
allow for genetic and genomic analysis described in Section 8.7.1 and any immune 
cell characterization as described for the fresh biopsies to identify potential 
response prediction or resistance biomarkers.
Whole blood, serum/plasma, and tissue samples will be collected at the time-points 
specified in the SoAs (see Section 1.3), analyzed by a local and/or a central lab and may 
be modified or reduced based on emerging data. The number of samples will not exceed 
what is described in the SoAs.
Residual blood, serum/plasma and tissue samples may also be used for additional 
(assay) validation experiments after the specified analyses were performed.
Details on sampling procedures, sample storage, and shipment are given in the
Laboratory Manual.
These samples will be destroyed within 5 years after the date of final clinical study report 
unless the participant gives specific consent for the remainder of the sample(s) to be 
stored for optional exploratory research within the RBR (see Section 8.9).


RO7119929—F. Hoffmann-La Roche Ltd
91/Protocol WP41377, Version 3
8.7.1
Genetic and Genomic Analyses
Whole blood samples for genetics will be taken at the time-points mentioned in SoA (see 
Section 1.3). These samples will be destroyed no later than 5 years after the date of final 
clinical study report, unless the participant gives specific consent for the remainder of the 
residual material to be stored for optional potential exploratory research within the RBR 
(see Section 8.9).
Residual tissue of fresh paired tumor biopsies as well as archival tissue material may be 
used for exploratory genomic analysis.
The results of such specimen analysis will facilitate the rational design of new 
pharmaceutical agents and the development of diagnostic tests, which may allow for 
individualized drug therapy for patients in the future. The specimens will also be made 
available for future biomarker research towards further understanding RO7119929, 
treatment of related diseases and AEs.
For related pharmacogenomics or genetic analysis, see RBR (Section 8.9).
8.7.1.1
Clinical Genotyping
DNA may be used to identify biomarkers that are predictive of response to treatment 
with RO7119929, and will help to better understand the pathogenesis, course, and 
outcome of the studied cancer types. The DNA may be used for, but analysis is not 
limited to:

Genetic variants of cytochrome P450s (e.g., CYP2C9, CYP2C19, CYP3A4, 
CYP3A5, UGT1A9, UGT1A1), transporters (e.g., multi-drug resistance 1 [MDR1]), 
or receptors which might affect the metabolism, pharmacokinetics, 
pharmacodynamics, safety of RO7119929.

Genetic variants of the TLR7 gene.

Genetic variants of pathways related to TLR7, HCC or other tumor types included 
into the study, including but not limited to, genes related to disease/efficacy, safety, 
PK, or PD parameters of RO7119929.

Genes coding for human leukocyte antigens (i.e., human leukocyte antigen [HLA]
gene family).
Data arising from all biosamples including samples for analyses of inherited DNA will be 
subject to the confidentiality standards described in Appendix 1.
8.7.1.2
Whole Genome/Exome/Targeted DNA Analysis
Archival tumor tissue, fresh tumor tissue sample and blood will be collected at the visits 
specified in the SoA (Section 1.3) and may be used for DNA and/or RNA extraction for 
exploratory research on genomic biomarkers (including, but not limited to, cancer-related 
genes and biomarkers associated with common molecular pathways, or immune-related 


RO7119929—F. Hoffmann-La Roche Ltd
92/Protocol WP41377, Version 3
markers such as T-cell receptor sequence/TCR V, microsatellite instability [MSI] and 
tumor mutation burden [TMB]).
Samples collected for DNA extraction (see Section 8.8) include, but are not limited to, 
genomic analysis and may be sent to one or more laboratories for analysis of germline 
or somatic mutations via whole genome sequencing (WGS), whole exome sequencing 
(WES), next-generation sequencing (NGS), or other genomic analysis methods.
Genomics is increasingly informing researchers’ understanding of disease pathobiology. 
WGS provides a comprehensive characterization of the genome and, along with clinical 
data collected in this study, may increase the opportunity for developing new therapeutic 
approaches. Data will be analyzed in the context of this study but will also be explored in 
aggregate with data from other studies. The availability of a larger dataset will assist in 
identification of important pathways, guiding the development of new targeted agents.
Given the complexity and exploratory nature of these analyses, WGS/WES data and 
analyses will not be shared with Investigators or study participants unless required by 
law. Participants will not be identified by name or any other personally identifying 
information. Data arising from all biosamples including samples for analyses of inherited 
DNA will be subject to the confidentiality standards described in the sample 
documentation. 
Transcriptome Analysis
Tissue biopsy/blood (other matrix possible) will be collected (see SoA, Section 1.3) for 
RNA extraction and subsequent gene expression profiling to enable:

Identification of PD biomarkers.

Identification of response predictive biomarker.

Assessment of treatment response (PD).
8.8
PHARMACODYNAMICS AND BIOMARKER SAMPLES
All PD/biomarker samples may also be used for research purposes to identify 
biomarkers useful for predicting and monitoring response to RO7119929, identifying 
biomarkers useful for predicting and monitoring RO7119929 safety, assessing 
pharmacodynamic effects of RO7119929 and investigating mechanism of therapy 
resistance. Additional markers may be measured in the case that a strong scientific 
rationale develops.
Samples should be collected as specified in the SoAs (see Section 1.3).
Based on continuous analysis of the data in this study and other studies, any sample 
type and/or analysis not considered to be critical for safety may be stopped at any time if 
the data from the samples collected does not produce useful information. 


RO7119929—F. Hoffmann-La Roche Ltd
93/Protocol WP41377, Version 3

Unless otherwise specified below, samples (including blood, slides, extracts, etc.)
will be destroyed no later than 5 years after the date of final clinical study report. For 
participants who consent to RBR, leftover samples will be transferred to RBR (see 
Section 8.9).

Any remaining blood/serum/plasma or tissue samples after the specified analyses 
may also be used for additional (assay) validation experiments. Samples may be 
used for research to develop methods, assays, prognostics and/or companion 
diagnostics related to TLR7 activation, characterization of the tumor/immune 
contexture, pre-existing and acquired immune inhibitory or stimulatory pathways.

Details on processes for collection and shipment of these samples can be found in 
separate sample documentation.
8.8.1
Mandatory Samples
All samples for PD and biomarker research outlined in the SoAs (Section 1.3) and in 
Section 8.7 are required and will be collected from all participants.
8.8.1.1
Blood Sampling
Samples will be collected for measurement of peripheral cytokine/chemokine release, 
expression of interferon stimulated genes as well as safety related cytokines (Part A and 
B), immunophenotyping (only Part B) and to assess response prediction markers as 
outlined in the SoAs (Section 1.3) and in Section 8.7. A mandatory whole blood sample 
will be taken for DNA extraction and clinical genotyping from every participant. If the 
sample is missed on Day 1, it can be collected at any other scheduled visit.
8.8.1.2
Optional Samples
The informed consent form will contain a separate section that addresses the use of 
remaining mandatory samples for optional exploratory research. A separate signature 
will be required to document a participant’s agreement to allow any remaining samples 
to be used for exploratory research.
8.8.1.3
Tissue Sampling
Archival Tumor Samples
Formalin-fixed paraffin embedded (FFPE) archival tumor tissue is mandatory and to be 
obtained from all participants enrolled in Part A and B, if available. These samples are 
from the primary tumor or, if not available, from a prior metastasis. Samples will be 
collected for measurements as given in Section 8.7.
The provision of archival FFPE blocks is preferred, but if not possible, a minimum of 
4 slides is recommended in order to perform the T cell infiltration analysis.
For enrolled participants, remaining archival tissue blocks will be returned to the site no 
later than the time of final closure of the study database or upon request, whichever 
occurs first. For participants who are not enrolled, remaining archival tissue blocks will 
be returned to the site no later than 6 weeks after eligibility determination. Other residual 


RO7119929—F. Hoffmann-La Roche Ltd
94/Protocol WP41377, Version 3
tissue material (may include blood, serum samples and slides, extracts, on-study blocks, 
etc.) will be destroyed within 5 years after the date of final clinical study report.
Fresh Tumor Biopsies
Mandatory fresh tumor biopsy samples will be collected from a safely accessible site 
within the liver from all participants enrolled in Part B of the study on two occasions: at 
baseline and once during the study treatment period [Cycle 2 Day 2] (see Table 3 and
Table 5). Each sample will consist of at least three core tissue specimens. Collection of 
tumor biopsy samples will be guided by ultrasound or CT scan using a 16-gauge needle 
to provide cores of at least 20 mm in length.
Cytological, fine needle aspiration or biopsy of bone lesions or any extra-hepatic tumor 
manifestation is not acceptable.
The baseline and on-treatment biopsies should preferably be taken from the same 
accessible, “non-critical” tumor lesion (metastasis) within the liver to ensure 
comparability. If feasible, on-treatment biopsies may be repeated if the initial biopsy did 
not contain sufficient tumor material for analysis. If preliminary data suggest, alternative 
on treatment tumor biopsy time points may be considered upon joint agreement between 
Investigators and the Sponsor. 
Available existing biopsies at the sites prior to the participant’s entry in the study should 
be discussed with the Sponsor (i.e., biopsy should have recently been obtained as part 
of a diagnostic biopsy and participants should not have received any tumor treatment 
after this collection).
Optional Tissue Sample
The ICF will contain a separate section that addresses the use of remaining mandatory 
samples for optional exploratory research. A separate signature will be required to 
document a participant's agreement to allow any remaining samples to be used for 
exploratory research (see Section 8.9.1.2).
An additional biopsy at the time of disease progression, partial response, stable disease, 
or at any other time point of interest based on participant’s course of disease may be 
taken after discussion between the Investigator and the Sponsor, to aid the 
understanding of resistance mechanisms.
8.9
SAMPLES FOR RESEARCH BIOSAMPLE REPOSITORY
8.9.1.1
Overview of the Research Biosample Repository
The RBR is a centrally administered group of facilities for the long-term storage of 
human biologic samples, including body fluids, solid tissues, and derivatives thereof 
(e.g., DNA, RNA, proteins, peptides). The collection, storage and analysis of the RBR 
samples will facilitate the rational design of new pharmaceutical agents and the 


RO7119929—F. Hoffmann-La Roche Ltd
95/Protocol WP41377, Version 3
development of diagnostic tests, which may allow for individualized drug therapy for 
patients in the future.
Samples for the RBR will be collected from participants who give specific consent to 
participate in this optional Research Biosample Repository. Collected RBR samples will 
be used to achieve the following objectives:

To study the association of biomarkers with efficacy or progressive disease.

To identify safety biomarkers that are associated with susceptibility to developing 
adverse events or can lead to improved adverse event monitoring or investigation.

To increase knowledge and understanding of disease biology and drug safety.

To study treatment response, including drug effects and the processes of drug 
absorption and disposition. 

To develop biomarker or diagnostic assays and establish the performance 
characteristics of these assays.
8.9.1.2
Sample Collection
The following samples will be stored in the RBR and used for research purposes, 
including, but not limited to, research on biomarkers related to RO7119929:

RBR (DNA/RNA) sample

Leftover plasma samples

Leftover serum samples

Leftover blood samples

Leftover blood samples for DNA extraction

Leftover tumor tissue (fresh pre- and on treatment tumor tissue) 
The samples collected for DNA/RNA extraction include, but is not limited to, genomic 
analysis and may be sent to one or more laboratories for analysis of germline or somatic 
mutations via whole genome sequencing (WGS), whole exome sequencing (WES), next-
generation sequencing (NGS), or other genomic analysis methods.
Data will be analyzed in the context of this study but will also be explored in aggregate 
with data from other studies. The availability of a larger dataset will assist in identification 
of important pathways, guiding the development of new targeted agents.
Samples may be sent to one or more laboratories for analysis of germline or somatic 
mutations via WGS/WES, or other genomic analysis methods. Genomics is increasingly 
informing researchers’ understanding of disease pathobiology. WGS and WES provide a 
comprehensive characterization of the genome and exome, respectively, and, along with 
clinical data collected in this study, may increase the opportunity for developing new 


RO7119929—F. Hoffmann-La Roche Ltd
96/Protocol WP41377, Version 3
therapeutic approaches or new methods for monitoring efficacy and safety or predicting 
which patients are more likely to respond to a drug or develop adverse events.
Participants will not be identified by name or any other personally identifying information. 
Data generated from RBR samples will be analyzed in the context of this study but will 
also be explored in aggregate with data from other studies. The availability of a larger 
dataset will assist in identification and characterization of important biomarkers and 
pathways to support future drug development. 
For all samples, dates of consent and sample collection should be recorded on the 
associated RBR page of the eCRF. Details on processes for collection and shipment of 
these samples can be found in separate sample documentation.
RBR samples will be stored and used until no longer needed or until they are exhausted. 
The RBR storage period will be in accordance with the IRB/EC-approved Informed 
Consent Form and applicable laws (e.g., Health Authority requirements).
The repository samples will be subject to the confidentiality standards (as described 
under Confidentiality and in Appendix 1).
8.10
HEALTH ECONOMICS/MEDICAL RESOURCE UTILIZATION
Health Economics/Medical Resource Utilization and Health Economics parameters are 
not evaluated in this study.
8.11
TIMING OF STUDY ASSESSMENTS
8.11.1
Screening and Pre-treatment Assessments
Written informed consent for participation in the study must be obtained before 
performing any study-specific screening tests or evaluations. ICFs for enrolled 
participant and for participants who are not subsequently enrolled will be maintained at 
the study site.
All screening, and all pre-treatment assessments (related to entry criteria), must be 
completed and reviewed to confirm that participants meet all eligibility criteria. The 
Investigator will maintain a screening log to record details of all participants screened 
and to confirm eligibility or record reasons for screening failure.
An Eligibility Checklist documenting the Investigator’s assessment of each screened 
participant with regard to the protocol’s inclusion and exclusion criteria is to be 
completed by the Investigator and kept at the investigational site.
Screening and pre-treatment assessments will be performed within 28 days prior to 
Cycle 1 Day 1, unless otherwise specified. Results of standard-of-care tests or 
examinations performed prior to obtaining informed consent and within 28 days prior to 


RO7119929—F. Hoffmann-La Roche Ltd
97/Protocol WP41377, Version 3
Cycle 1 Day 1 (unless otherwise specified) may be used (and do not need to be 
repeated for screening).
8.11.2
Assessments during Treatment
Under no circumstances will participants who enroll in this study and have completed 
treatment as specified, be permitted to re-enroll in the study.
All assessments must be performed as per SoA (see Section 1.3). Assessments 
scheduled on the day of study treatment administration should be performed prior to 
administration of study treatment, unless otherwise noted in the SoA. 
8.11.3
Assessments at Study Completion/Early Termination Visit
Participants who discontinue study treatment prematurely will be asked to return to the 
clinic for a study completion/early termination visit and may undergo follow-up 
assessments (see Section 8.11.4), unless the participant withdrew consent.
Participants who complete study treatment (defined as 12 months of treatment within the 
study) or discontinue from the study early will be asked to return to the clinic within 28 
days after the final dose of study drug for an EOTV. The visit at which response 
assessment shows progressive disease may be used as the study completion/early 
termination visit.
8.11.4
Follow-Up Assessments
Participants will be treated until disease progression, unacceptable toxicities, or 
withdrawal of the participant’s consent. Participants may continue study treatment for a 
maximum of 12 months. This time period can be prolonged if the participant derives a 
clinical benefit from the treatment after discussion with the Medical Monitor and approval 
by the Sponsor.
As with other immunotherapies, treatment beyond RECIST progression may be 
considered following discussion between the Investigator and the Sponsor (see 
Section 7.1). The criteria needed for continuing treatment beyond initial apparent 
progressive disease per RECIST v1.1 (e.g., radiological progression secondary to tumor 
inflammation) are outlined in Section 8.1.1.
After the study completion/early termination visit, adverse events should be followed as 
outlined in Section 8.3.1 and Section 8.3.3, including a Safety Follow-Up Visit 60 days 
after the final dose of study drug. 
Thereafter, the sites will provide to the Sponsor an update on survival status and post-
study anti-cancer therapies as outlines in the SoA (Section 1.3).


RO7119929—F. Hoffmann-La Roche Ltd
98/Protocol WP41377, Version 3
8.11.5
Assessments at Unscheduled Visits
Please see Section 1.3 (including footnotes) for activities that are required to be 
performed in case of an unscheduled visit.
9.
STATISTICAL CONSIDERATIONS
9.1
STATISTICAL HYPOTHESES
Not applicable.
9.2
SAMPLE SIZE DETERMINATION
Approximately 35 to 40 evaluable participants will be included under each schedule for
dose escalation Part A. The exact number of participants will depend on the occurrence 
of DLTs and the number of dose-levels required to determine the MTD and/or the RDE. 
Based on study simulations assuming a variety of potential dose-toxicity profiles, the 
estimated chance to require more than 45 evaluable participants is below 10%. The 
maximum number will be 60 DLT-evaluable participants.
An analysis of RO7119929 effects in the tumor microenvironment is an important 
endpoint for demonstrating PD proof of mechanism in this study. This analysis will 
require paired tumor biopsies prior to and following RO7119929 dosing for each 
participant in study Part B. Participants with both tumor biopsy samples available and 
evaluable will be considered evaluable for this PD endpoint. The design for study Part B 
specifies up to approximately 30 PD-evaluable participants. Based on an anticipated 
50% success rate for obtaining paired tumor biopsies, it is expected that up to 
approximately 60 participants will be enrolled in the study expansion Part B. 
9.3
POPULATIONS FOR ANALYSES
For purposes of analysis, the following populations are defined in Table 10.
Table 10 Analysis Populations
Population
Description
Efficacy
All participants who received at least one dose of RO7119929 and had at 
least one tumor assessment.
Safety
All participants who received at least one dose RO7119929, whether 
prematurely withdrawn from the study or not, will be included in the safety 
analysis. Unless otherwise specified, the safety population will be the 
default analysis set used for all analyses.
Pharmacokinetic
All participants who have received at least one dose of RO7119929 and
who have data from at least one post-dose sample will be included in the 
PK analysis population. Participants will be excluded from the PK analysis 
population if they significantly violate the inclusion or exclusion criteria, 
deviate significantly from the protocol, or if data are unavailable or 
incomplete which may influence the PK analysis. Excluded cases will be 
documented together with the reason for exclusion. All decisions on 
exclusions from the analysis will be made prior to database closure.


RO7119929—F. Hoffmann-La Roche Ltd
99/Protocol WP41377, Version 3
9.4
STATISTICAL ANALYSES
9.4.1
Demographics and Baseline Characteristics
Demography and baseline characteristics (including age, sex, participant disposition, 
previous therapies, and medical and disease history) will be analyzed using descriptive 
statistics. The analysis will be based on the safety analysis population. Data will be 
summarized by cohort and regimen within each part.
9.4.2
Efficacy Analyses
No formal statistical model and no formal hypothesis testing are planned in this study. 
Efficacy analysis will be performed for all participants in the efficacy analysis population 
and grouped according to dose cohort within each study part. Tumor response data will 
be reported for RECIST v1.1 and for iRECIST using descriptive statistics. Objective 
response and disease control rates will be summarized using relative frequencies and
90% confidence limits. Duration of response and progression-free survival (PFS) will be 
summarized using time to event analyses and Kaplan-Meier curves.
9.4.3
Safety Analyses
The primary endpoint of the study will be safety and, in particular, the occurrence of a 
DLT. All participants enrolled in the study who received at least one dose of study 
medication will be included in the safety evaluation. DLT will be evaluated for the first 3 
weeks in Schedules 1 and 3 and for the first 4 weeks in Schedule 2. In order to be evaluable 
for DLT, participants in Schedule 1 and 3 need to have taken in all three doses scheduled 
within Cycle 1, and participants in Schedule 2 need to have taken in all four doses planned 
within the first 4 weeks. In case a second dose of tocilizumab is introduced into Schedule 3 at 
Cycle 1 Day 15, participants also need to have taken in all four doses planned within the first 4 
weeks to be evaluable for DLT. Participants experiencing a protocol-defined DLT already 
with fewer doses are also DLT-evaluable. Dose escalation will be guided by the CRM-
EWOC design, which will target identification of the MTD. The model will be estimated 
using Bayesian inference with a minimal informative prior for the model parameters. 
Details on the statistical model, the priors and the dose escalation algorithm are defined 
in Appendix 6. Safety will be characterized by AEs, laboratory tests, vital signs, ECG, 
physical examinations and performance status, as well as by DLTs. Descriptive statistics 
will be used to summarize all safety data by dose cohort, by schedule, and overall within 
the respective study parts.


RO7119929—F. Hoffmann-La Roche Ltd
100/Protocol WP41377, Version 3
Table 11 Safety Statistical Analysis Methods
Endpoint
Statistical Analysis Methods
Adverse events
The original terms recorded on the eCRF by the Investigator for adverse 
events will be coded by the Sponsor.
Adverse events will be summarized by mapped term and appropriate 
thesaurus level.
Clinical laboratory 
tests
All clinical laboratory data will be stored on the database in the units in 
which they were reported. Laboratory test values will be presented in 
International System of Units (SI units; Système International d’Unités) by 
individual listings with flagging of abnormal results. Shifts in NCI CTCAE 
v5.0 from baseline to the worst grade observed during treatment will be 
presented for selected laboratory parameters. For details on standard 
reference ranges and data transformation and the definition of laboratory 
abnormalities, see Appendix 4.
Vital signs
Vital signs data will be presented by individual listings with flagging of 
values outside the normal ranges and flagging of abnormalities. In addition, 
tabular summaries will be used, as appropriate.
ECG data analysis ECG data will be presented by individual listings. In addition, tabular 
summaries will be used, as appropriate.
Concomitant 
medications
The original terms recorded on the participants’ eCRF by the Investigator 
for concomitant medications will be standardized by the Sponsor by utilizing 
a mapped term and appropriate drug dictionary level.
Concomitant medications will be presented in summary tables and listings.
9.4.4
Pharmacokinetic Analyses
PK parameters will be derived from the plasma concentrations and will be listed and 
summarized using descriptive statistics including means, geometric means, standard 
deviations, and coefficients of variation. The parameters will include, e.g., area under the 
curve (AUC), clearance (CL), Vss, accumulation ratio and terminal elimination half-life. 
Estimation of PK parameters may be performed using standard non-compartmental 
methods and/or population PK modeling. If data allow, other exploratory methods may 
be used for data analysis, e.g. PK and PD data may be used to develop a population 
PK/PD model.
Actual sampling times are presented in the SoA (Section 1.3). Individual and mean 
concentration versus time will be plotted on either semi-logarithmic or normal scales. 
The linearity of PK (AUC and maximum concentration [Cmax]) will be investigated. In
order to assess the food effect on pharmacokinetics of RO7119929, PK parameters will 
be analyzed for a minimum of 6 participants (see Section 5.3.1).
9.4.5
Immunogenicity Analyses
Not applicable.


RO7119929—F. Hoffmann-La Roche Ltd
101/Protocol WP41377, Version 3
9.4.6
Pharmacodynamic Analyses
All pharmacodynamic parameters will be presented by listings and descriptive summary 
statistics separately by group or cohorts.
Descriptive statistics will be used to summarize peripheral blood and tumor PD markers. 
Absolute and percentage change from baseline will be calculated for the PD markers. 
Graphical techniques will be employed to better understand the relationship of the PD 
markers with dose and time. Correlations between PK parameters, PD markers and 
clinical response will be assessed through data tabulations and graphical techniques. 
9.4.7
Other Analyses
Exploratory analysis may also be performed to identify markers and/or marker panels 
correlating with and/or potentially predictive of an in vivo PD response and the 
occurrence of certain AEs.
9.5
INTERIM ANALYSES
No formal interim analyses are planned. Participant’s safety will be reviewed on an 
ongoing basis in all parts of the study and formally discussed during Part A within the 
dose escalation meetings. 
9.6
SUMMARIES OF CONDUCT OF STUDY
All reportable deviations will be listed.


RO7119929—F. Hoffmann-La Roche Ltd
102/Protocol WP41377, Version 3
10.
REFERENCES
Agarwal K, Ahn SH, Elkhashab M, et al. Safety and efficacy of vesatolimod (GS-9620) in 
patients with chronic hepatitis B who are not currently on antiviral treatment. J Viral 
Hepat. 2018;25(11):1331-40.
Arkenau HT, Barriuso J, Olmos D, et al. Prospective validation of a prognostic score to 
improve patient selection for oncology phase I trials. J Clin Oncol. 
2009;27:2692-96.
Ascierto PA, Bernard A, Fox WJ, et al. Insights from immuno-oncology. The Society for 
Immunotherapy of Cancer statement on access to IL-6-targeting therapies for 
COVID-19. Posted on March 24, 2020, and under consideration for publication in 
the Journal for ImmunoTherapy of Cancer (not peer-reviewed).
Bigot F, Castanon E, Baldini C, et al. Prospective validation of a prognostic score for 
patients in immunotherapy phase I trials: the Gustave Roussy Immune Score 
(GRIm-Score). Eur J Cancer. 2017;84:212-18.
Chen F, Teachey DT, Pequignot E, et al. Measuring IL-6 and sIL-6R in serum from 
patients treated with tocilizumab and/or siltuximab following CAR T cell therapy. J 
Immunol Methods 2016;434:1-8.
Chi H, Li C, Zhao FS, et al. Front Pharmacol 2017. Anti-tumor Activity of Toll-Like 
Receptor 7 Agonists.Front Pharmacol. 2017; 8:304.
Diab A, Marcondes M, Kotzin B, et al. Phase Ib: Preliminary clinical activity and immune 
activation for NKTR-262 [TLR 7/8 agonist] plus NKTR-214 [CD122-biased agonist] 
in patients (pts) with locally advanced or metastatic solid tumors (REVEAL Phase 
ib/II Trial). J Clin Oncol. 2019;37(8 suppl):26.
Doessegger L and Banholzer ML. Clinical development methodology for infusion-related 
reactions with monoclonal antibodies. Clin Transl Immunology. 2015;4(7):e39.
Dudek AZ, Yunis C, Harrison LI, et al. First in human phase I trial of 852A, a novel 
systemic toll-like receptor 7 agonist, to activate innate immune responsees in 
patient with advanced cancer. Clin Cancer Res. 2007 13(23):7119-25.
Dummer R, Hauschild A, Becker JC, et al. An exploratory study of systemic 
administration of the toll-like receptor-7 agonist 852A in patients with refractory 
metastatic melanoma. Clin Cancer Res. 2008;14(3):856-64.
Engel AL, Holt GE, and Lu H. The pharmacokinetics of toll-like receptor agonist and the 
impact on the immune system. Exp Rev Clin Pharm. 2011;2:275-89.
Fidock MD, Souberbielle BE, Laxton C, et al. The innate immune response, clinical 
outcomes, and ex vivo HCV antiviral efficacy of a TLR7 agonist (PF-4878691). Clin 
Pharmacol Ther. 2011;89(6):821-29.


RO7119929—F. Hoffmann-La Roche Ltd
103/Protocol WP41377, Version 3
Frey N and Porter D. Cytokine release syndrome with chimeric antigen receptor T cell 
therapy. Biol Blood Marrow Transplant 2019;25(4):e123-7.
Gadd AJ, Greco F, Cobb AJ, et al. Targeted Activation of Toll-Like Receptors: 
Conjugation of a Toll-Like Receptor 7 Agonist to a Monoclonal Antibody Maintains 
Antigen Binding and Specificity. Bioconjug Chem. 2015; 26(8):1743-52.
Gane EJ, Lim YS, Gordon SC, et al. The oral toll-like receptor-7 agonist GS-9620 in 
patients with chronic hepatitis B virus infection. J Hepatol. 2015;63:320–28.
Geller MA, Cooley S, Argenta PA et al.Toll-like receptor-7 (TLR-7) agonist administered 
subcutaneously in a prolonged dosing schedule in heavily pretreated recurrent 
breast, ovarian, and cervix cancers. Cancer Immunol Immunother. 2010; 59:1877–
84.
Goldstein D, Hertzog P, Tomkinson E, et al. Administration of imiquimod, an interferon 
inducer, in asymptomatic human immunodeficiency virus-infected persons to 
determine safety and biologic response modification. J Infect Dis. 1998;178:858–
61.
Grimstein M and Huang S-M. A regulatory science viewpoint on botanical-drug 
interactions. J Food Drug Anal. 2018;26:12-25.
Guan W, Liang W, Zhao Y, et al. Comorbidity and its impact on 1590 patients with COVID-19 
in China: a nationwide analysis. Eur Resp J. 2020;552000547. doi: 
10.1183/13993003.00547-2020.
Gupta S, Grilley-Olson J, Hong D, et al. Abstract CT091: safety and pharmacodynamic 
activity of MEDI9197, a TLR 7/8 agonist, administered intratumorally in subjects 
with solid tumors. Cancer Res. 2017;77:CT091. doi: 10.1158/1538-7445.AM2017-
CT091. Hedge PS, Karanikas V, and Evers S. The where, the when, and the how 
of immune monitoring in the era of checkpoint inhibition. Clin Cancer Res. 
2016;22(8):1865-74.
Investigator’s Brochure RO7119929
Investigator’s Brochure for Tocilizumab
Janssen HLA, Brunetto MR, Kim YJ, et al. Safety, efficacy and pharmacodynamics of 
vesatolimod (GS-9620) in virally suppressed patients with chronic hepatitis B. J 
Hepatol. 2018;68:431–40.
Kauer J, Hörner S, Osburg L, et al. Tocilizumab, but not dexamethasone, prevents CRS without 
affecting antitumor activity of bispecific antibodies. J Immunother Cancer 2020;8:e000621.
Le Tourneau C, Lee JJ, Siu LL. Dose escalation methods in phase I cancer clinical trials. 
J Natl Cancer Inst. 2009;101:708-20.
Lee DW, Gardner R, Porter DL, et al. Current concepts in the diagnosis and 
management of cytokine release syndrome. Blood 2014;124(2):188-95.


RO7119929—F. Hoffmann-La Roche Ltd
104/Protocol WP41377, Version 3
Liang, W, Guan W, Chen R, et al. Cancer patients in SARS-CoV-2 infection: a nationwide 
analysis in China. Lancet Oncol 2020;21(3):335-7.
Liu Q, Yu S, Li A, et al. Targeting interlukin-6 to relive immunosupression in tumor 
micoenvironment. Tumour Biol 2017:39(6):1-11.
Locke FL, Neelapu SS, Bartlett NL, et al. Preliminary results of prophylactic tocilizumab after 
axicabtageneciloleucel (axi-cel; KTE-19) treatment for patients with refractory, aggressive 
Non-Hodgkin Lymphoma (NHL). Blood 2017;130:1547.
Merad M, Martin JC. Pathological inflammation in patients with COVID-19: a key role for 
monocytes and macrophages. Nat Rev Immunol 2020;20(6):35562.
Meyer T, Stockfleth E. Clinical investigations of toll-like receptor agonists. Expert Opin 
Investig Drugs. 2008;17:1051–65.
National Institutes of Health (NIH). Recombinant DNA Advisory Committee (RAC). 
Cytokine Release Syndrome after T Cell Immunotherapy. Bethesda, Maryland. 
NIH Videocast 9 June 2015. Available at: 
https://videocast.nih.gov/summary.asp?Live=16420&bhcp=1. Accessed 30 
January 2017.
Neelapu SS, Tummala S, Kebriaei P, et al. Chimeric antigen receptor T-cell therapy— assessment 
and management of toxicities. Nat Rev Clin Oncol 2018;15:4762.
Neuenschwander B, Branson M, and Gsponer T. Critical Aspects of the Bayesian 
Approach to Phase I Cancer Trials. Stat Med. 2008;27(13): 2420-39.
O’Neill LA, Golenbock D, and Bowie AG. The history of Toll-like receptors – redefining 
innate immunity. Nat Rev Immunol. 2013;13(6):453-60.
Panelli MC, White R, Foster M, et al. Forecasting the cytokine storm following systemic 
interleukin (IL)-2 administration. J Transl Med. 2004;2:17.
Riegler LL, Jones GP, Lee DW. Current approaches in the grading and management of cytokine 
release syndrome after chimeric antigen receptor T-cell therapy. Ther Clinical Risk Manag.
2019;15:32335.
Rogatko A, Schoeneck D, Jonas W, et al. Translation of innovative designs into phase I 
trials. J Clin Oncol. 2007;25:4982-86.Schöffski P, Riggert S, Fumoleau P, et al. 
Phase I trial of intravenous aviscumine (rViscumin) in patients with solid tumors: a 
study of the European Organization for Research and Treatment of Cancer New 
Drug Development Group. Ann Oncol. 2004;15:1816–24.
Seymour L, Bogaerts J, Perrone A, et al; RECIST working group. iRECIST: guidelines 
for response criteria for use in trials testing immunotherapeutics. Lancet Oncol. 
2017;18, (3):e143-52.
Teachey DT, Rheingold SR, Maude SL, et al. Cytokine release syndrome after 
blinatumomab treatment related to abnormal macrophage activation and 
ameliorated with cytokine-directed therapy. Blood 2013:121:5154-7.


RO7119929—F. Hoffmann-La Roche Ltd
105/Protocol WP41377, Version 3
United States Prescribing Information (USPI) for Blincyto.
Tsukamoto H, Fujieda K, Senju S, et al. Immune-suppressive effects of interleukin-6 on T-cell-
mediated anti-tumor immunity. Cancer Sci. 2018;109(3):523-30.
Velazquez-Salinas L, Verdugo-Rodriguez, A, Rodiguez L, et al. The role of interleukin 6 during 
viral infections. Front Microbiol 2019;10:1057. https://doi.org/10.3389/fmicb.2019.01057.
Viardot A, Goebeler ME, Hess G, et al. Phase 2 study of the bispecific T-cell engager (BiTE) 
antibody blinatumomab in relapsed/refractory diffuse large B-cell lymphoma. Blood 
2016:127(11):1410-6
Wu W, Dietze KK, Gibbert, K et al. TLR ligand induced IL-6 counter-regulates the anti-viral 
CD8+ T cell response during an acute retrovirus infection. Sci Rep 2015;5:10501. 


RO7119929—F. Hoffmann-La Roche Ltd
106/Protocol WP41377, Version 3
11.
SUPPORTING DOCUMENTATION AND OPERATIONAL
CONSIDERATIONS


RO7119929—F. Hoffmann-La Roche Ltd
107/Protocol WP41377, Version 3
Appendix 1
Regulatory, Ethical, and Study Oversight Considerations
1.
REGULATORY AND ETHICAL CONSIDERATIONS
1.1.
COMPLIANCE WITH LAWS AND REGULATIONS
This study will be conducted in full conformance with the ICH E6 guideline for Good 
Clinical Practice and the principles of the Declaration of Helsinki, or the laws and 
regulations of the country in which the research is conducted, whichever affords the 
greater protection to the individual. The study will comply with the requirements of the 
ICH E2A guideline (Clinical Safety Data Management: Definitions and Standards for 
Expedited Reporting). Studies conducted in the United States or under a U.S. 
Investigational New Drug (IND) application will comply with U.S. FDA regulations and 
applicable local, state, and federal laws. Studies conducted in the EU/EEA will comply 
with the EU Clinical Trial Directive (2001/20/EC).
1.2.
INSTITUTIONAL REVIEW BOARD OR ETHICS COMMITTEE
This protocol, the ICFs, any information to be given to the participant (e.g. 
advertisements, diaries etc.), and relevant supporting information must be submitted to 
the IRB/EC by the Principal Investigator and reviewed and approved by the IRB/EC 
before the study is initiated. In addition, any participant recruitment materials must be 
approved by the IRB/EC.
The Principal Investigator is responsible for providing written summaries of the status of 
the study to the IRB/EC annually or more frequently in accordance with the 
requirements, policies, and procedures established by the IRB/EC. Investigators are also 
responsible for promptly informing the IRB/EC of any protocol amendments 
(Section 2.3.1 of this Appendix).
The Investigator should follow the requirements for reporting all adverse events to the 
Sponsor. Investigators may receive written IND safety reports or other safety-related 
communications from the Sponsor. Investigators are responsible for ensuring that such 
reports are reviewed and processed in accordance with Health Authority requirements 
and the policies and procedures established by their IRB/EC, and archived in the site’s 
study file.
1.3.
INFORMED CONSENT
The Sponsor’s Master Informed Consent Form (and ancillary sample ICFs such as a 
Child’s Assent or Caregiver's Informed Consent Form, if applicable) will be provided to 
each site. If applicable, it will be provided in a certified translation of the local language. 
Participants must be informed that their participation is voluntary. Participants or their 
legally authorized representative will be required to sign a statement of informed consent 
that meets the requirements of 21 CFR 50, local regulations, ICH guidelines, Health 
Insurance Portability and Accountability Act (HIPAA) requirements, where applicable, 


RO7119929—F. Hoffmann-La Roche Ltd
108/Protocol WP41377, Version 3
and the IRB/IEC or study center. The Sponsor or its designee must review and approve 
any proposed deviations from the Sponsor's sample ICFs or any alternate consent forms 
proposed by the site (collectively, the “Consent Forms”) before IRB/EC submission. The 
final IRB/EC-approved Consent Forms must be provided to the Sponsor for Health 
Authority submission purposes according to local requirements. Participants must be re-
consented to the most current version of the ICF(s) during their participation in the study. 
A copy of the ICF(s) signed by all parties must be provided to the participant or the 
participant’s legally authorized representative.
The Consent Forms must be signed and dated by the participant or the participant’s 
legally authorized representative before his or her participation in the study. The case 
history or clinical records for each participant shall document the informed consent 
process and that written informed consent was obtained prior to participation in the 
study.
The Consent Forms should be revised whenever there are changes to study procedures 
or when new information becomes available that may affect the willingness of the 
participant to take part. The final revised IRB/EC-approved Consent Forms must be 
provided to the Sponsor for Health Authority submission purposes if required as per local 
regulations.
Participants must be re-consented to the most current version of the Consent Forms (or 
to a significant new information/findings addendum in accordance with applicable laws 
and IRB/EC policy) during their participation in the study. For any updated or revised 
Consent Forms, the case history or clinical records for each participant shall document 
the informed consent process and that written informed consent was obtained using the 
updated/revised Consent Forms for continued participation in the study.
A copy of each signed Consent Form must be provided to the participant or the 
participant’s legally authorized representative. All signed and dated Consent Forms must 
remain in each participant’s study file or in the site file and must be available for 
verification by study monitors at any time.
Consent to Participate in the Research Biosample Repository
The Informed Consent Form will contain a separate section that addresses participation 
in the RBR. The Investigator or authorized designee will explain to each participant the 
objectives, methods, and potential hazards of participation in the RBR. Participants will 
be told that they are free to refuse to participate and may withdraw their samples at any 
time and for any reason during the storage period. A separate, specific signature will be 
required to document a participant’s agreement to provide optional RBR samples. 
Participants who decline to participate will not provide a separate signature.
The Investigator should document whether or not the participant has given consent to 
participate by completing the RBR Sample Informed Consent eCRF.


RO7119929—F. Hoffmann-La Roche Ltd
109/Protocol WP41377, Version 3
In the event of death or loss of competence of a subject who is participating in the 
Research, the participant's samples and data will continue to be used as part of the 
RBR.
For sites in the United States, each Consent Form may also include patient authorization 
to allow use and disclosure of personal health information in compliance with the U.S. 
Health Insurance Portability and Accountability Act of 1996 (HIPAA). If the site utilizes a 
separate Authorization Form for patient authorization for use and disclosure of personal 
health information under the HIPAA regulations, the review, approval, and other 
processes outlined above apply except that IRB review and approval may not be 
required per study site policies.
Approval by the Institutional Review Board or Ethics Committee
Collection, storage, and analysis of RBR samples is contingent upon the review and 
approval of the exploratory research and the RBR portion of the Informed Consent Form 
by each site's Institutional Review Board or Ethics Committee (IRB/EC) and, if 
applicable, an appropriate regulatory body. If a site has not been granted approval for 
RBR sampling, this section of the protocol will not be applicable at that site.
Withdrawal from the Research Biosample Repository
Participants who give consent to provide samples for the RBR have the right to withdraw 
their samples at any time for any reason. If a participant wishes to withdraw consent to 
the testing of his or her samples, the Investigator must inform the Medical Monitor and 
Site Monitor in writing of the participant’s wishes using the RBR Withdrawal Form and, if 
the trial is ongoing, must enter the date of withdrawal on the RBR Withdrawal of 
Informed Consent eCRF. The participant will be provided with instructions on how to 
withdraw consent after the trial is closed. A participant's withdrawal from Study 
WP41377 does not, by itself, constitute withdrawal of samples from the RBR. Likewise, a 
participant’s withdrawal from the RBR does not constitute withdrawal from Study 
WP41377. Data already generated before time of withdrawal of consent to RBR will still 
be used.
1.4.
CONFIDENTIALITY
Participants will be assigned a unique identifier by the Sponsor. Any participant records 
or datasets that are transferred to the Sponsor will contain the identifier only; participant 
names or any information which would make the participant identifiable will not be 
transferred. 
The participant must be informed that his/her personal study-related data will be used by 
the Sponsor in accordance with local data protection law. The level of disclosure must 
also be explained to the participant. 


RO7119929—F. Hoffmann-La Roche Ltd
110/Protocol WP41377, Version 3
Medical information may be given to a participant’s personal physician or other 
appropriate medical personnel responsible for the participant’s welfare, for treatment 
purposes.
The participant must be informed that his/her medical records may be examined by 
Clinical Quality Assurance auditors or other authorized personnel appointed by the 
Sponsor, by appropriate IRB/IEC members, and by inspectors from regulatory 
authorities.
Confidentiality for Research Biosample Repository
Data generated from RBR samples must be available for inspection upon request by 
representatives of national and local Health Authorities, and Roche monitors, 
representatives, and collaborators, as appropriate.
Participant medical information associated with RBR samples is confidential and may 
only be disclosed to third parties as permitted by the Informed Consent Form (or 
separate authorization for use and disclosure of personal health information) signed by 
the participant, unless permitted or required by law.
Data derived from RBR sample analysis on individual participants will generally not be 
provided to study investigators unless a request for research use is granted. The 
aggregate results of any conducted research will be available in accordance with the 
effective Roche policy on study data publication.
Genetic research data and associated clinical data may be shared with researchers who 
are not participating in the study or submitted to government or other health research 
databases for broad sharing with other researchers. Participants will not be identified by 
name or any other personally identifying information. Given the complexity and 
exploratory nature of these analyses, genetic data and analyses will not be shared with 
Investigators or participants unless required by law.
Any inventions and resulting patents, improvements, and/or know-how originating from 
the use of the RBR sample data will become and remain the exclusive and unburdened 
property of Roche, except where agreed otherwise.
Monitoring and Oversight Research Biosample Repository
Samples collected for the RBR will be tracked in a manner consistent with Good Clinical 
Practice by a quality-controlled, auditable, and appropriately validated laboratory 
information management system, to ensure compliance with data confidentiality as well 
as adherence to authorized use of samples as specified in this protocol and in the 
Informed Consent Form. Roche monitors and auditors will have direct access to 
appropriate parts of records relating to participant participation in RBR for the purposes 
of verifying the data provided to Roche. The site will permit monitoring, audits, IRB/EC 


RO7119929—F. Hoffmann-La Roche Ltd
111/Protocol WP41377, Version 3
review, and Health Authority inspections by providing direct access to source data and 
documents related to the samples.
1.5.
FINANCIAL DISCLOSURE
Investigators will provide the Sponsor with sufficient, accurate financial information in 
accordance with local regulations to allow the Sponsor to submit complete and accurate 
financial certification or disclosure statements to the appropriate Health Authorities. 
Investigators are responsible for providing information on financial interests during the 
course of the study and for one year after completion of the study (i.e., LPLV).
2.
DATA HANDLING AND RECORD
2.1.
DATA COLLECTION AND MANAGEMENT RESPONSIBILITIES
2.1.1.
Data Quality Assurance
All participant data relating to the study will be recorded on printed or electronic CRF 
unless transmitted to the Sponsor or designee electronically (e.g., laboratory data). The 
Investigator is responsible for verifying that data entries are accurate and correct by 
physically or electronically signing the CRF.
The Investigator must maintain accurate documentation (source data) that supports the 
information entered in the CRF.
The Investigator must permit study-related monitoring, audits, IRB/IEC review, and 
regulatory agency inspections and provide direct access to source data documents.
The Sponsor or designee is responsible for the data management of this study including 
quality checking of the data.
Study monitors will perform ongoing source data verification to confirm that data entered 
into the CRF by authorized site personnel are accurate, complete, and verifiable from 
source documents; that the safety and rights of participants are being protected; and that 
the study is being conducted in accordance with the currently approved protocol and any 
other study agreements, ICH GCP, and all applicable regulatory requirements.
2.1.2.
Clinical Outcome Assessment Data
2.1.2.1
Paper Clinical Outcome Assessment Data
All original forms on which participants records responses are source documentation as 
described in Section 2.1.3. of this Appendix.
2.1.2.3.
Safety Biomarker Data
Adverse event reports will not be derived from safety biomarker data by the Sponsor, 
and safety biomarker data will not be included in the formal safety analyses for this 


RO7119929—F. Hoffmann-La Roche Ltd
112/Protocol WP41377, Version 3
study.  In addition, safety biomarker data will not inform decisions on participant
management.
2.1.3.
Source Data Records
Source documents (paper or electronic) are those in which participant data are recorded 
and documented for the first time. They include, but are not limited to, hospital records, 
clinical and office charts, laboratory notes, memoranda, COAs (paper or eCOA), 
evaluation checklists, pharmacy dispensing records, recorded data from automated 
instruments, copies of transcriptions that are certified after verification as being accurate 
and complete, microfiche, photographic negatives, microfilm or magnetic media, X-rays, 
patient files, and records kept at pharmacies, laboratories, and medico-technical 
departments involved in a clinical trial.
Before study initiation, data to be entered directly into the eCRFs (i.e., no prior written or 
electronic record of the data) and considered source data must be defined in the Trial 
Monitoring Plan.
Source documents that are required to verify the validity and completeness of data 
entered into the eCRFs must not be obliterated or destroyed and must be retained per 
the policy for retention of records described below.
To facilitate source data verification, the Investigators and institutions must provide the 
Sponsor direct access to applicable source documents and reports for trial-related 
monitoring, Sponsor audits, and IRB/EC review. The investigational site must also allow 
inspection by applicable Health Authorities.
2.1.4.
Use of Computerized Systems
When clinical observations are entered directly into an investigational site’s 
computerized medical record system (i.e., in lieu of original hardcopy records), the 
electronic record can serve as the source document if the system has been validated in 
accordance with Health Authority requirements pertaining to computerized systems used 
in clinical research. An acceptable computerized data collection system allows 
preservation of the original entry of data. If original data are modified, the system should 
maintain a viewable audit trail that shows the original data as well as the reason for the 
change, name of the person making the change, and date of the change.
2.2.
RETENTION OF RECORDS
Records and documents, including signed ICF, pertaining to the conduct of this study 
must be retained by the Investigator for at least 15 years after study completion unless 
local regulations or institutional policies require a longer retention period. No records 
may be destroyed during the retention period without the written approval of the 
Sponsor. No records may be transferred to another location or party without written 
notification to the Sponsor.


RO7119929—F. Hoffmann-La Roche Ltd
113/Protocol WP41377, Version 3
2.3.
STUDY RECORDS
The Investigator must maintain adequate and accurate records to enable the conduct of 
the study to be fully reconstructed, including but not limited to the protocol, protocol 
amendments, ICFs, and documentation of IRB/EC and governmental approval. 
Roche shall also submit an Annual Safety Report once a year to the IEC and CAs 
according to local regulatory requirements and timelines of each country participating in 
the study.
2.3.1.
Protocol Amendments
Any substantial protocol amendments will be prepared by the Sponsor. Substantial 
protocol amendments will be submitted to the IRB/EC and to regulatory authorities in 
accordance with local regulatory requirements.
Approval must be obtained from the IRB/EC and regulatory authorities (as locally 
required) before implementation of any changes, except for changes necessary to 
eliminate an immediate hazard to participant or any non-substantial changes, as defined 
by regulatory requirements.
2.3.2.
Publication Policy
The results of this study may be published or presented at scientific meetings. If this is 
foreseen, the Investigator agrees to submit all manuscripts or abstracts to the Sponsor 
for approval prior to submission. This allows the Sponsor to protect proprietary 
information and to provide comments based on information from other studies that may 
not yet be available to the Investigator.
The Sponsor will comply with the requirements for publication of study results. In 
accordance with standard editorial and ethical practice, the Sponsor will generally 
support publication of multicenter trials only in their entirety and not as individual center 
data. In this case, a coordinating Investigator will be designated by mutual agreement.
Any formal publication of the study in which contribution of Sponsor personnel exceeded 
that of conventional monitoring will be considered as a joint publication by the 
Investigator and the appropriate Sponsor personnel.
Authorship will be determined by mutual agreement and in line with International 
Committee of Medical Journal Editors authorship requirements.
Any inventions and resulting patents, improvements, and/or know-how originating from 
the use of data from this study will become and remain the exclusive and unburdened 
property of the Sponsor, except where agreed otherwise.


RO7119929—F. Hoffmann-La Roche Ltd
114/Protocol WP41377, Version 3
2.3.3.
Dissemination of Clinical Study Data
Regardless of the outcome of a study, the Sponsor is dedicated to openly providing 
information on the study to healthcare professionals and to the public, at scientific 
congresses, in clinical trial registries, and in peer-reviewed journals. The Sponsor will 
comply with all requirements for publication of study results. Study data may be shared 
with others who are not participating in this study (see confidentiality in Section 1.4 of 
this appendix) , and redacted Clinical Study Reports and other summary reports will be 
made available upon request, provided the requirements of Roche's global policy on 
data sharing have been met. 
For more information, refer to the Roche Global Policy on Sharing of Clinical Trials Data 
at the following web site: 
www.roche.com/roche_global_policy_on_sharing_of_clinical_study_information.pdf
The results of this study may be published or presented at scientific congresses. 
2.3.4.
Site Inspections
Site visits will be conducted by the Sponsor or an authorized representative for 
inspection of study data, participants’ medical records, and eCRFs. The Investigator will 
permit national and local Health Authorities, Sponsor monitors, representatives, and 
collaborators, and the IRBs/ECs to inspect facilities and records relevant to this study.
3.
ADMINISTRATIVE STRUCTURE
No formal Independent Review Committee, Steering Committee, Data Monitoring 
Committee or Data Safety Monitoring Board are planned for this study.
4.
STUDY AND SITE CLOSURE
The Sponsor (or designee) has the right to close the study site or terminate this study at 
any time. Reasons for terminating the study may include, but are not limited to, the 
following:

The incidence or severity of adverse events in this or other studies indicates a 
potential health hazard to participants.

Participant enrollment is unsatisfactory.
The Sponsor will notify the Investigator and Health Authorities if the study is placed on 
hold, or if the Sponsor decides to discontinue the study or development program.


RO7119929—F. Hoffmann-La Roche Ltd
115/Protocol WP41377, Version 3
Study sites will be closed upon study completion. A study site is considered closed when 
all required documents and study supplies have been collected and a study-site closure 
visit has been performed.
The Investigator may initiate study-site closure at any time, provided there is reasonable 
cause and sufficient notice is given in advance of the intended termination.
Reasons for the early closure of a study site by the Sponsor or Investigator may include 
but are not limited to:

Failure of the Investigator to comply with the protocol, the requirements of the 
IRB/IEC or local Health Authorities, the Sponsor's procedures, or GCP guidelines.

Inadequate recruitment of participants by the Investigator.

Discontinuation of further study treatment development.


RO7119929—F. Hoffmann-La Roche Ltd
116/Protocol WP41377, Version 3
Appendix 2
Adverse Events: Definitions and Procedures for Evaluating, 
Follow-up and Reporting
DEFINITION OF ADVERSE EVENTS
According to the E2A ICH guideline for Good Clinical Practice, an adverse event is any 
untoward medical occurrence in a patient or clinical investigation subject administered a 
pharmaceutical product and which does not necessarily have to have a causal 
relationship with this treatment.
An adverse event can therefore be:

Any unfavorable and unintended sign (including an abnormal laboratory finding), 
symptom, or disease temporally associated with the use of a medicinal product, 
whether or not considered related to the medicinal product.
Events Meeting the AE Definition:

Deterioration in a laboratory value (hematology, clinical chemistry, or urinalysis) or 
other clinical test (e.g., ECG, X-ray) that is associated with symptoms or leads to a 
change in study treatment or concomitant treatment or discontinuation from study 
treatment (see Appendix 3, Section 4 ).

Exacerbation of a chronic or intermittent pre-existing condition, including either an 
increase in frequency and/or intensity of the condition.

New conditions detected or diagnosed after study treatment administration even 
though it may have been present before the start of the study.

Adverse events that are related to a protocol-mandated intervention, including those 
that occur prior to assignment of study treatment (e.g., screening invasive 
procedures such as biopsies).
Events NOT Meeting the AE Definition:

Any clinically significant abnormal laboratory findings or other abnormal safety 
assessments which are associated with the underlying disease, unless judged by 
the Investigator to be more severe than expected for the participant’s condition.

The disease/disorder being studied or expected progression, signs, or symptoms of 
the disease/disorder being studied, unless more severe than expected for the 
participant’s condition.

Medical or surgical procedure (e.g., endoscopy, appendectomy): the condition that 
leads to the procedure is an AE.

Situations where an untoward medical occurrence did not occur (social and/or 
convenience admission to a hospital).

Anticipated day-to-day fluctuations of pre-existing disease(s) or condition(s) present 
or detected at the start of the study that do not worsen.


RO7119929—F. Hoffmann-La Roche Ltd
117/Protocol WP41377, Version 3
2.
DEFINITION OF SERIOUS ADVERSE EVENTS
If an event is not an AE per definition above, then it cannot be a serious adverse event 
(SAE) even if serious conditions are met (e.g., hospitalization for signs/symptoms of the 
disease under study, death due to progression of disease).
A serious adverse event is defined as any untoward medical occurrence that at any 
dose:

Results in death.

Is life-threatening.

The term "life-threatening" in the definition of "serious" refers to an event in which 
the participant was at risk of death at the time of the event; it does not refer to an 
event which hypothetically might have caused death if it was more severe.

Requires inpatient hospitalization or prolongation of existing hospitalization (see 
Appendix 3).
In general, hospitalization signifies that the participant has been detained (usually 
involving at least an overnight stay) at the hospital or emergency ward for 
observation and/or treatment that would not have been appropriate in the 
physician’s office or outpatient setting. Complications that occur during 
hospitalization are AEs. If a complication prolongs hospitalization or fulfills any other 
serious criteria, the event is serious. When in doubt as to whether “hospitalization” 
occurred or was necessary, the AE should be considered serious.

Hospitalization for elective treatment of a pre-existing condition that did not worsen 
from baseline is not considered an AE.

Results in persistent or significant disability/incapacity

Disability means substantial disruption of the participant’s ability to conduct normal 
life functions.

This definition is not intended to include experiences of relatively minor medical 
significance such as uncomplicated headache, nausea, vomiting, diarrhea, 
influenza, and accidental trauma (e.g., sprained ankle) which may interfere with or 
prevent everyday life functions but do not constitute a substantial disruption.

Is a congenital anomaly/birth defect.

Other significant events:

Medical or scientific judgment should be exercised in deciding whether SAE 
reporting is appropriate in other situations such as important medical events that 
may not be immediately life-threatening or result in death or hospitalization but may 
jeopardize the participant or may require medical or surgical intervention to prevent 
one of the other outcomes listed in the above definition. These events should 
usually be considered serious.


RO7119929—F. Hoffmann-La Roche Ltd
118/Protocol WP41377, Version 3

Examples of such events include invasive or malignant cancers, intensive treatment 
in an emergency room or at home for allergic bronchospasm, blood dyscrasias or 
convulsions that do not result in hospitalization, or development of drug dependency 
or drug abuse.
3.
RECORDING OF ADVERSE EVENT AND/OR SERIOUS 
ADVERSE EVENT
When an AE/SAE occurs, it is the responsibility of the Investigator to review all
documentation (e.g., hospital progress notes, laboratory reports, and diagnostics 
reports) related to the event.
The Investigator will then record all relevant AE/SAE information in the CRF.
It is not acceptable for the Investigator to send photocopies of the participant’s medical 
records to Medical Monitor in lieu of completion of the eCRF.
There may be instances when copies of medical records for certain cases are requested 
by Medical Monitor. In this case, all participant identifiers, with the exception of the 
participant number, will be redacted on the copies of the medical records before 
submission to Medical Monitor.
The Investigator will attempt to establish a diagnosis of the event based on signs, 
symptoms, and/or other clinical information. Whenever possible, the diagnosis (not the 
individual signs/symptoms) will be documented as the AE/SAE.
3.1.
ASSESSMENT OF SEVERITY
The terms “severe” and “serious” are not synonymous. Severity refers to the intensity of 
an adverse event (rated as mild, moderate, or severe, or according to a pre-defined 
grading criteria [e.g., National Cancer Institute Common Terminology Criteria for 
Adverse Events [NCI CTCAE] criteria); the event itself may be of relatively minor medical 
significance (such as severe headache without any further findings).
Severity and seriousness need to be independently assessed for each adverse event 
recorded on the eCRF.
Serious adverse events are required to be reported by the Investigator to the Sponsor 
immediately (i.e., no more than 24 hours after learning of the event.
The adverse event severity grading scale for the NCI CTCAE (v5.0) will be used for 
assessing adverse event severity. Table 2 will be used for assessing severity for 
adverse events that are not specifically listed in the NCI CTCAE.


RO7119929—F. Hoffmann-La Roche Ltd
119/Protocol WP41377, Version 3
Table 2
Adverse Event Severity Grading Scale
Grade
Severity
1
Mild; asymptomatic or mild symptoms; clinical or diagnostic observations only; or 
intervention not indicated
2
Moderate; minimal, local, or non-invasive intervention indicated; or limiting 
age-appropriate instrumental activities of daily livinga
3
Severe or medically significant, but not immediately life-threatening; hospitalization 
or prolongation of hospitalization indicated; disabling; or limiting self-care activities 
of daily livingb,c
4
Life-threatening consequences or urgent intervention indicatedd
5
Death related to adverse eventd
NCI CTCAE = National Cancer Institute Common Terminology Criteria for Adverse Events.
Note: Based on the NCI CTCAE (v5.0), which can be found at: 
https://ctep.cancer.gov/protocoldevelopment/electronic_applications/docs/CTCAE_v5_Quick_R
eference_8.5x11.pdf.
a Instrumental activities of daily living refer to preparing meals, shopping for groceries or 
clothes, using the telephone, managing money, etc.
b Examples of self-care activities of daily living include bathing, dressing and undressing, 
feeding one's self, using the toilet, and taking medications, as performed by patients who are
not bedridden.
c If an event is assessed as a "significant medical event," it must be reported as a serious 
adverse event (see Section 6 of this Appendix for reporting instructions), per the definition of 
serious adverse event in Section 2.
d Grade 4 and 5 events must be reported as serious adverse events (see Section 6 for 
reporting instructions), per the definition of serious adverse event in Section 2.
3.2.
ASSESSMENT OF CAUSALITY
Investigators should use their knowledge of the participant, the circumstances 
surrounding the event, and an evaluation of any potential alternative causes to 
determine whether or not an adverse event is considered to be related to the study 
treatment, indicating "yes" or "no" accordingly. The following guidance should be taken 
into consideration:

Temporal relationship of event onset to the initiation of study treatment.

Course of the event, considering especially the effects of dose-reduction, 
discontinuation of study treatment, or reintroduction of 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.

Presence of risk factors in the participant 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.


RO7119929—F. Hoffmann-La Roche Ltd
120/Protocol WP41377, Version 3
For participant receiving combination therapy, causality will be assessed individually for 
each protocol-mandated therapy.
4.
FOLLOW-UP OF AES AND SAES
The Investigator is obligated to perform or arrange for the conduct of supplemental 
measurements and/or evaluations as medically indicated or as requested by the Medical 
Monitor to elucidate the nature and/or causality of the AE or SAE as fully as possible. 
This may include additional laboratory tests or investigations, histopathological 
examinations, or consultation with other health care professionals.
If a participant dies during participation in the study or during a recognized follow-up 
period, the Investigator will provide the Sponsor with a copy of any post-mortem findings 
including histopathology.
New or updated information will be recorded in the originally completed eCRF.
The Investigator will submit any updated SAE data to the Sponsor within 24 hours of 
receipt of the information.
5.
IMMEDIATE REPORTING REQUIREMENTS FROM 
INVESTIGATOR TO SPONSOR
Certain events require immediate reporting to allow the Sponsor to take appropriate 
measures to address potential new risks in a clinical trial. The Investigator must report 
such events to the Sponsor immediately; under no circumstances should reporting take 
place more than 24 hours after the Investigator learns of the event. The following is a list 
of events that the Investigator must report to the Sponsor within 24 hours after learning 
of the event, regardless of relationship to study treatment:

Serious adverse events

Non-serious adverse events of special interest (NSAESI)

Pregnancies (see Section 8.3.5)

DLTs during the DLTs assessment window (see Section 4.1.4).
The Investigator must report new significant follow-up information for these events to the 
Sponsor immediately (i.e., no more than 24 hours after becoming aware of the 
information). New significant information includes the following:

New signs or symptoms or a change in the diagnosis.

Significant new diagnostic test results.

Change in causality based on new information.

Change in the event’s outcome, including recovery.

Additional narrative information on the clinical course of the event.


RO7119929—F. Hoffmann-La Roche Ltd
121/Protocol WP41377, Version 3
Investigators must also comply with local requirements for reporting serious adverse 
events to the local Health Authority and IRB/EC.
5.1
REPORTING REQUIREMENTS OF SERIOUS ADVERSE 
EVENTS, NON-SERIOUS ADVERSE EVENTS OF SPECIAL 
INTEREST AND DOSE-LIMITING TOXICITIES
Events that Occur prior to Study Treatment Initiation
After informed consent has been obtained but prior to initiation of study treatment, only 
serious adverse events caused by a protocol-mandated intervention should be reported. 
The Serious Adverse Event/Adverse Event of Special Interest Reporting Form provided 
to Investigators should be completed and submitted to the Serious Adverse Event 
Responsible immediately (i.e., no more than 24 hours after learning of the event).
Events that Occur after Study Treatment Initiation
For reports of serious adverse events and non-serious adverse events of special interest 
(Section 8.3.6) that occur after initiation of study treatment (Section 8.3.1), Investigators 
should record all case details that can be gathered immediately (i.e., within 24 hours 
after learning of the event) on the appropriate Adverse Event of Special Interest/ Serious 
Adverse Event eCRF form and submit the report via the electronic data capture (EDC) 
system. A report will be generated and sent to the Sponsor’s Safety Risk Management 
department.
In the event that the EDC system is unavailable, the Serious Adverse Event/Adverse 
Event of Special Interest Reporting Form provided to Investigators should be completed 
and submitted to the Serious Adverse Event Responsible immediately (i.e., no more 
than 24 hours after learning of the event).
Once the EDC system is available, all information will need to be entered and submitted 
via the EDC system.
Reporting of Post-Study Adverse Events and Serious Adverse Events
After the end of the adverse event reporting period (see Section 8.3.1) after the final 
dose of study treatment), all deaths, regardless of cause, should be reported through 
use of the Long-Term Survival Follow-Up eCRF. 
In addition, if the Investigator becomes aware of a SAE that is believed to be related to 
prior study treatment, the event should be reported directly to the Sponsor or its 
designee, either by faxing or by scanning and emailing the SAE Reporting Form using 
the fax number or email address provided to Investigators.


RO7119929—F. Hoffmann-La Roche Ltd
122/Protocol WP41377, Version 3
5.2
REPORTING REQUIREMENTS FOR CASES OF ACCIDENTAL 
OVERDOSE OR MEDICATION ERROR
Accidental overdose and medication error (hereafter collectively referred to as "special 
situations"), are defined as follows:

Accidental overdose: accidental administration of a drug in a quantity that is higher 
than the assigned dose

Medication error:  accidental deviation in the administration of a drug 
In some cases, a medication error may be intercepted prior to administration of 
the drug.
Special situations are not in themselves adverse events, but may result in adverse 
events. Each adverse event associated with a special situation should be recorded 
separately on the Adverse Event eCRF. If the associated adverse event fulfills 
seriousness criteria, the event should be reported to the Sponsor immediately 
(i.e., no more than 24 hours after learning of the event). For RO7119929 adverse events 
associated with special situations should be recorded as described below for each 
situation:

Accidental overdose: Enter the adverse event term. Check the "Accidental 
overdose" and "Medication error" boxes.

Medication error that does not qualify as an overdose: Enter the adverse event term.  
Check the "Medication error" box.

Medication error that qualifies as an overdose: Enter the adverse event term. Check 
the "Accidental overdose" and "Medication error" boxes. 
In addition, all special situations associated with RO7119929 regardless of whether they 
result in an adverse event, should be recorded on the Adverse Event eCRF and should 
be recorded as described below:

Accidental overdose: Enter the drug name and "accidental overdose" as the event 
term. Check the "Accidental overdose" and "Medication error" boxes.

Medication error that does not qualify as an overdose: Enter the name of the drug 
administered and a description of the error (e.g., wrong dose administered, wrong 
dosing schedule, incorrect route of administration, wrong drug, expired drug 
administered) as the event term. Check the "Medication error" box.

Medication error that qualifies as an overdose: Enter the drug name and "accidental 
overdose" as the event term. Check the "Accidental overdose" and "Medication 
error" boxes. Enter a description of the error in the additional case details.

Intercepted medication error: Enter the drug name and "intercepted medication 
error" as the event term. Check the "Medication error" box. Enter a description of the 
error in the additional case details.


RO7119929—F. Hoffmann-La Roche Ltd
123/Protocol WP41377, Version 3
As an example, an accidental overdose that resulted in a headache would require the 
completion of two Adverse Event eCRF pages, one to report the accidental overdose 
and one to report the headache. The "Accidental overdose" and "Medication error" 
boxes would need to be checked on both eCRF pages.
6.
EXPEDITED REPORTING TO HEALTH AUTHORITIES, 
INVESTIGATORS, INSTITUTIONAL REVIEW BOARDS, AND 
ETHICS COMMITTEES
The Sponsor will promptly evaluate all serious adverse events and NSAESI against 
cumulative product experience to identify and expeditiously communicate possible new 
safety findings to Investigators, IRBs, ECs, and applicable Health Authorities based on 
applicable legislation.
To determine reporting requirements for single adverse event cases, the Sponsor will 
assess the expectedness of these events using the following reference documents:

RO7119929 Investigator’s Brochure

RO4877533 (Tocilizumab) Investigator’s Brochure
The Sponsor will compare the severity of each event and the cumulative event 
frequency reported for the study with the severity and frequency reported in the 
applicable reference document.
Reporting requirements will also be based on the Investigator's assessment of causality 
and seriousness, with allowance for upgrading by the Sponsor as needed.


RO7119929—F. Hoffmann-La Roche Ltd
124/Protocol WP41377, Version 3
Appendix 3
Procedures for Recording Adverse Events
Investigators should use correct medical terminology/concepts when recording adverse 
events on the Adverse Event eCRF. Avoid colloquialisms and abbreviations.
Only one adverse event term should be recorded in the event field on the Adverse Event 
eCRF.
1.
DIAGNOSIS VERSUS SIGNS AND SYMPTOMS
1.1.
CYTOKINE RELEASE SYNDROME
For all events with clinical presentation of CRS after RO7119929 administration, the 
event should be reported using the preferred term “cytokine release syndrome” and not 
“flu like symptoms.” It is anticipated that with the mechanism of action of RO7119929, 
clinical signs and symptoms of CRS will actually dependent on a systemic increase of 
cytokines, and therefore the most appropriate term for reporting is “cytokine release 
syndrome.”
1.2.
OTHER ADVERSE EVENTS
A diagnosis (if known) should be recorded on the Adverse Event eCRF 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 Adverse Event 
eCRF. If a diagnosis is subsequently established, all previously reported adverse events 
based on signs and symptoms should be nullified and replaced by one adverse event 
report based on the single diagnosis, with a starting date that corresponds to the starting 
date of the first symptom of the eventual diagnosis.
2.
ADVERSE EVENTS OCCURRING SECONDARY TO OTHER 
EVENTS
In general, adverse events occurring secondary to other events (e.g., cascade events or 
clinical sequelae) should be identified by their primary cause, with the exception of 
severe or serious secondary events. However, medically significant adverse events 
occurring secondary to an initiating event that are separated in time should be recorded 
as independent events on the Adverse Event eCRF. For example:

If vomiting results in mild dehydration with no additional treatment in a healthy adult, 
only vomiting should be reported on the eCRF.

If vomiting results in severe dehydration, both events should be reported separately 
on the eCRF.

If a severe gastrointestinal hemorrhage leads to renal failure, both events should be 
reported separately on the eCRF.


RO7119929—F. Hoffmann-La Roche Ltd
125/Protocol WP41377, Version 3

If dizziness leads to a fall and subsequent fracture, all three events should be 
reported separately on the eCRF.
All adverse events should be recorded separately on the Adverse Event eCRF if it is 
unclear as to whether the events are associated.
3.
PERSISTENT OR RECURRENT ADVERSE EVENTS
A persistent adverse event is one that extends continuously, without resolution, between 
participant evaluation time-points. Such events should only be recorded once on the 
Adverse Event eCRF. The initial severity of the event should be recorded, and the 
severity should be updated to reflect the most extreme severity any time the event 
worsens. If the event becomes serious, the Adverse Event eCRF should be updated to 
reflect this.
A recurrent adverse event is one that resolves between participant evaluation 
time-points and subsequently recurs. Each recurrence of an adverse event should be 
recorded separately on the Adverse Event eCRF.
4.
ABNORMAL LABORATORY VALUES
Not every laboratory abnormality qualifies as an adverse event. A laboratory test result 
should be reported as an adverse event if it meets any of the following criteria:

Accompanied by clinical symptoms.

Results in a change in study treatment (e.g., dosage modification, treatment 
interruption, or treatment discontinuation).

Results in a medical intervention (e.g., potassium supplementation for hypokalemia) 
or a change in concomitant therapy.

Clinically significant in the Investigator’s judgment.
It is the Investigator’s responsibility to review all laboratory findings. Medical and 
scientific judgment should be exercised in deciding whether an isolated laboratory 
abnormality should be classified as an adverse event.
If a clinically significant laboratory abnormality is a sign of a disease or syndrome 
(e.g., alkaline phosphatase and bilirubin 5 times the upper limit of normal [ULN] 
associated with cholecystitis), only the diagnosis (i.e., cholecystitis) should be recorded 
on the Adverse Event eCRF.
If a clinically significant laboratory abnormality is not a sign of a disease or syndrome, 
the abnormality itself should be recorded on the Adverse Event eCRF, along with a 
descriptor indicating if the test result is above or below the normal range (e.g., "elevated 
potassium", as opposed to "abnormal potassium"). If the laboratory abnormality can be 
characterized by a precise clinical term per standard definitions, the clinical term should 


RO7119929—F. Hoffmann-La Roche Ltd
126/Protocol WP41377, Version 3
be recorded as the adverse event. For example, an elevated serum potassium level of 
7.0 mEq/L should be recorded as “hyperkalemia”.
Observations of the same clinically significant laboratory abnormality from visit to visit 
should not be repeatedly recorded on the Adverse Event eCRF, unless the etiology 
changes. The initial severity of the event should be recorded, and the severity or 
seriousness should be updated any time the event worsens.
5.
ABNORMAL VITAL SIGN VALUES
Not every vital sign abnormality qualifies as an adverse event. A vital sign result should 
be reported as an adverse event if it meets any of the following criteria:

Accompanied by clinical symptoms.

Results in a change in study 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.
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 adverse event.
If a clinically significant vital sign abnormality is a sign of a disease or syndrome 
(e.g., high blood pressure), only the diagnosis (i.e., hypertension) should be recorded on 
the Adverse Event eCRF.
Observations of the same clinically significant vital sign abnormality from visit to visit 
should not be repeatedly recorded on the Adverse Event eCRF, unless the etiology 
changes. The initial severity of the event should be recorded, and the severity or
seriousness should be updated any time the event worsens.


RO7119929—F. Hoffmann-La Roche Ltd
127/Protocol WP41377, Version 3
6.
ABNORMAL LIVER FUNCTION TESTS
The finding of an elevated ALT or AST (3 baseline value) in combination with either 
an elevated total bilirubin (2 ULN) or clinical jaundice in the absence of cholestasis or 
other causes of hyperbilirubinemia is considered to be an indicator of severe liver injury 
(as defined by Hy's Law). The patient population for this study consists of patients with 
decreased hepatic function who may exhibit abnormal liver function test results, some of 
which may meet Hy's law criteria prior to enrollment in the trial. The following modified 
Hy's law criteria are for the purpose of determining what may constitute a drug-induced 
liver injury for this trial population and define those cases which require expedited 
reporting to the health authorities in relation to Hy's law. Investigators must report as an 
adverse event the occurrence of either of the following:

Treatment-emergent ALT or AST 3 baseline value in combination with total
bilirubin 2 ULN (of which 35% is direct bilirubin)

Treatment-emergent ALT or AST 3baseline value in combination with clinical 
jaundice 
The most appropriate diagnosis or (if a diagnosis cannot be established) the abnormal 
laboratory values should be recorded on the Adverse Event eCRF and reported to the 
Sponsor immediately (i.e., no more than 24 hours after learning of the event), either as a 
serious adverse event or an adverse event of special interest (see Section 8.3.4).
7.
DEATHS
For this protocol, mortality is an efficacy endpoint. Deaths that occur during the 
protocol-specified adverse event reporting period (see Section 5 of Appendix 2) that are 
attributed by the Investigator solely to progression of the condition being studied should 
be recorded only on the Death Attributed to Progressive Disease eCRF. All other 
on-study deaths, regardless of relationship to study treatment, must be recorded on the 
Adverse Event eCRF and immediately reported to the Sponsor (see Section 5 of 
Appendix 2).
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 single medical 
concept on the Adverse Event eCRF. Generally, only one such event should be 
reported. If the cause of death is unknown and cannot be ascertained at the time of 
reporting, “unexplained death” should be recorded on the Adverse Event eCRF. If the 
cause of death later becomes available (e.g., after autopsy), “unexplained death” should 
be replaced by the established cause of death. The term "sudden death" should not be 
used unless combined with the presumed cause of death (e.g., "sudden cardiac death").


RO7119929—F. Hoffmann-La Roche Ltd
128/Protocol WP41377, Version 3
8.
PREEXISTING MEDICAL CONDITIONS
A preexisting medical condition is one that is present at the screening visit for this study. 
Such conditions should be recorded on the General Medical History and Baseline 
Conditions eCRF.
A preexisting medical condition should be recorded as an adverse event only if the 
frequency, severity, or character of the condition worsens during the study. When 
recording such events on the Adverse Event eCRF, it is important to convey the concept 
that the preexisting condition has changed by including applicable descriptors 
(e.g., “more frequent headaches”).
9.
LACK OF EFFICACY OR WORSENING OF CONDITION BEING 
STUDIED
Events that are clearly consistent with the expected pattern of progression of the 
underlying disease should not be recorded as adverse events. These data will be 
captured as efficacy assessment data only. In most cases, the expected pattern of 
progression will be based on criteria (e.g., RECIST). In rare cases, the determination of 
clinical progression will be based on symptomatic deterioration. However, every effort 
should be made to document progression using objective criteria. If there is any 
uncertainty as to whether an event is due to progressive disease, it should be reported 
as an adverse event.
10.
HOSPITALIZATION OR PROLONGED HOSPITALIZATION
Any adverse event that results in hospitalization or prolonged hospitalization should be 
documented and reported as a serious adverse event (per the definition of serious 
adverse event in Appendix 2), except as outlined below.
An event that leads to hospitalization under the following circumstances should not be 
reported as an adverse event or a serious adverse event:

Hospitalization for respite care

Planned hospitalization required by the protocol (e.g., for study treatment 
administration or insertion of access device for study treatment administration) 

Hospitalization for a preexisting condition, provided that all of the following criteria 
are met:
The hospitalization was planned prior to the study or was scheduled during the 
study when elective surgery became necessary because of the expected 
normal progression of the disease.
The participant has not suffered an adverse event.

Hospitalization due solely to progression of the underlying cancer.


RO7119929—F. Hoffmann-La Roche Ltd
129/Protocol WP41377, Version 3
Appendix 4
Clinical Laboratory Tests
The tests detailed in Table 1 will be performed by the local laboratory unless otherwise 
specified. If the local laboratory results are used, the results must be captured in source 
documentation and entered into the eCRF.
Protocol-specific requirements for inclusion or exclusion of participants are detailed in 
Section 5.1 and Section 5.2, respectively, of the protocol.
Additional tests may be performed at any time during the study as determined necessary 
by the Investigator or required by local regulations.
Table 1
Protocol-Required Safety Laboratory Assessments
Laboratory 
Assessments
Parameters
Hematology

Red blood cell count, hemoglobin, hematocrit, white blood cell 
count with differential (neutrophils, eosinophils, basophils, 
monocytes, lymphocytes, and other cells), and platelet count
Clinical Chemistry

Sodium, potassium, magnesium, chloride, bicarbonate, glucose 
(non-fasting), BUN or urea, creatinine, total protein, albumin, 
phosphate, calcium, total and direct bilirubin, alkaline 
phosphatase, ALT, AST, ALP, CRP, urate, LDH, lipase.
Coagulation

INR, aPTT, PT.
Viral Serology

HIV (specific tests HIV-1 antibody, HIV-1/2 antibody, HIV-2 
antibody), hepatitis B surface antigen (HBsAg), total hepatitis B 
core antibody (HBcAb), HBs antibody, hepatitis C virus (HCV) 
antibody, and PCR for HBV and HCV.
Thyroid Hormones

TSH, free T3 (or T3), free T4
Myocardial markers

Cardiac troponin I or cardiac troponin T and BNP or NT-proBNP, 
with intra-patient consistency
Autoimmune 
antibodies

ANA screen, anti-double-stranded DNA antibodies, cytoplasmic
anti-neutrophil cytoplasmic antibody, perinuclear anti-neutrophil 
cytoplasmic antibody
Pregnancy Test

All women of childbearing potential (including those who have had 
a tubal ligation) will have a serum pregnancy test at specified 
timepoints. Urine pregnancy tests will be performed at specified 
subsequent visits. If a urine pregnancy test is positive, it must be 
confirmed by a serum pregnancy test. 

Human chorionic gonadotropin (hCG) pregnancy test (as needed 
for women of childbearing potential)
Urinalysis

Glucose, protein, urobilinogen

If there is a clinically significant positive result (confirmed by a 
positive repeated sample), urine will be sent to the laboratory for 
microscopy and culture. If there is an explanation for the positive 
dipstick results (e.g., menses), it should be recorded and there is 
no need to perform microscopy and culture.


RO7119929—F. Hoffmann-La Roche Ltd
130/Protocol WP41377, Version 3
The results of each test must be entered into the CRF.
Investigators must document their review of each laboratory safety report.
Additional Statistical Considerations for Clinical Laboratory Data

Standard Reference Ranges and Transformation of Data

Potential analysis considerations for analyzing Laboratory data includes the use of 
Standard Reference Ranges and potential transformation of data for specific lab 
tests. 

In this scenario, Roche standard reference ranges, rather than the reference ranges 
of the Investigator, can be used for specific parameters. For these parameters, the 
measured laboratory test result will be assessed directly using the Roche standard 
reference range. Certain laboratory parameters will be transformed to Roche’s 
standard reference ranges.
A transformation will be performed on certain laboratory tests that lack sufficiently 
common procedures and have a wide range of Investigator ranges, e.g., enzyme tests 
that include AST, ALT, and alkaline phosphatase and total bilirubin. Since the standard 
reference ranges for these parameters have a lower limit of zero, only the upper limits of 
the ranges will be used in transforming the data.

Definition of Laboratory Abnormalities
For all laboratory parameters included in this analysis, there exists a Roche predefined 
standard reference range. Laboratory values falling outside this standard reference 
range will be labeled “H” for high or “L” for low in participant listings of laboratory data.
In addition to the standard reference range, a marked reference range has been 
predefined by Roche for these laboratory parameters. The marked reference range is 
broader than the standard reference range. Values falling outside the marked reference 
range that also represent a defined change from baseline will be considered marked 
laboratory abnormalities (i.e., potentially clinically relevant). If a baseline value is not 
available for a participant, the midpoint of the standard reference range will be used as 
the participant’s baseline value for the purposes of determining marked laboratory 
abnormalities. Marked laboratory abnormalities will be labeled in the participant listings 
as “HH” for very high or “LL” for very low.


RO7119929—F. Hoffmann-La Roche Ltd
131/Protocol WP41377, Version 3
Appendix 5
Contraceptive Guidance and Collection of Pregnancy 
Information
1.
DEFINITIONS

Woman of Childbearing Potential (WOCBP)
A woman is considered fertile following menarche and until becoming post-menopausal 
unless permanently sterile. The definition of childbearing potential may be adapted for 
alignment with local guidelines or requirements.

Women in the following categories are considered to be Woman of Non-
Childbearing Potential (WONCBP)
a)
Pre-menarchal
b)
Pre-menopausal female with one of the following:
–
Documented hysterectomy.
–
Documented bilateral salpingectomy.
–
Documented bilateral oophorectomy.
Note: Documentation can come from the site personnel’s: review of participant’s 
medical records, medical examination, or medical history interview.
c)
Post-menopausal female
–
A post-menopausal state is defined as no menses for 12 months without an 
alternative medical cause other than menopause. A high follicle-stimulating 
hormone (FSH) level in the post-menopausal range may be used to confirm a 
post-menopausal state in women not using hormonal contraception or hormonal 
replacement therapy (HRT). However, in the absence of 12 months of amenorrhea, 
a single FSH measurement is insufficient.
–
Females on HRT and whose menopausal status is in doubt will be required to use 
one of the non-hormonal highly effective contraception methods if they wish to 
continue their HRT during the study. Otherwise, they must discontinue HRT to allow 
confirmation of post-menopausal status before study enrollment.
2.
CONTRACEPTION GUIDANCE

Female Participants
Female participants of childbearing potential are eligible to participate if they agree to 
use highly effective method of contraception consistently and correctly as described in 
Table 1 below.
Per ICH M3(R2), highly effective methods of birth control are defined as those, alone or 
in combination, that result in a low failure rate (i.e. less than 1% per year) when used 
consistently and correctly as described in Table 1 below.


RO7119929—F. Hoffmann-La Roche Ltd
132/Protocol WP41377, Version 3
Table 1
Highly Effective Contraceptive Methods
Highly Effective Contraceptive Methods That Are User-Dependenta
(Failure rate of 1% per year when used consistently and correctly)

Combined (estrogen- and progestogen-containing) hormonal contraception 
associated with inhibition of ovulation:
o
Oral
o
Intravaginal
o
Transdermal

Progestogen-only hormonal contraception associated with inhibition of ovulation:
o
Oral
o
Injectable
Highly Effective Methods That Are User-Independent
(Failure rate of 1% per year)

Implantable progestogen-only hormonal contraception associated with inhibition of 
ovulationa

Intrauterine device (IUD)

Intrauterine hormone-releasing system (IUS)

Bilateral tubal occlusion
Vasectomized partner
A vasectomized partner is a highly effective contraception method provided that the partner is 
the sole male sexual partner of the WOCBP and the absence of sperm has been confirmed. If 
not, an additional highly effective method of contraception should be used.
Sexual abstinence
Sexual abstinence is considered a highly effective method only if defined as refraining from 
heterosexual intercourse during the entire period of risk associated with the study treatment. 
The reliability of sexual abstinence needs to be evaluated in relation to the duration of the 
study and the preferred and usual lifestyle of the participant.
Acceptable Birth Control Methods Which May Not Be Considered As Highly Effective
(Failure rate of 1% per year when used consistently and correctly)

Progestogen-only oral hormonal contraception, where inhibition of ovulation is not the

Primary mode of action

Male or female condom with or without spermicide b

Cap, diaphragm or sponge with spermicide b
d)
Hormonal contraception may be susceptible to interaction with the IMP, which may 
reduce the efficacy of the contraception method.
Typical use failure rates may differ from those when used consistently and correctly. Use 
should be consistent with local regulations regarding the use of contraceptive methods 
for participants participating in clinical studies.
e)
A combination of male condom with either cap, diaphragm or sponge with spermicide 
(double barrier methods) are also considered acceptable, but not highly effective, birth 
control methods. i.e., when the risk of teratogenicity and genotoxicity is unlikely.


RO7119929—F. Hoffmann-La Roche Ltd
133/Protocol WP41377, Version 3
3.
PREGNANCY TESTING
For WOCBP enrolled in the study, blood sample and urine pregnancy tests will be 
performed according to the SoA (see Section 1.3). If a urine pregnancy test is positive, it 
must be confirmed by a blood pregnancy test.
Pregnancy testing will be performed whenever a menstrual cycle is missed or when 
pregnancy is otherwise suspected and according to local practice.
4.
COLLECTION OF PREGNANCY INFORMATION

Male participants with partners who become pregnant
The Investigator will attempt to collect pregnancy information on any male participant’s 
female partner while the male participant is in this study (see Section 8.3.5 Pregnancy). 
This applies only to male participants who receive study treatment.
Attempts should be made to collect and report details of the course and outcome of any 
pregnancy in the partner of a male participant exposed to study treatment. The 
Investigator will record pregnancy information on the Clinical Trial Pregnancy Reporting 
Form and submit it to the Sponsor within 24 hours of learning of the partner’s pregnancy. 
When permitted by the site, the pregnant partner would need to sign an Authorization for 
Use and Disclosure of Pregnancy Health Information to allow for follow-up on her 
pregnancy. If the authorization has been signed, the Investigator should update the 
Clinical Trial Pregnancy Reporting Form with additional information on the course and 
outcome of the pregnancy when available. An Investigator who is contacted by the male 
participant 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. The female partner will be followed to 
determine the outcome of the pregnancy. Information on the status of the mother and 
child will be forwarded to the Sponsor. Monitoring of the participant’s partner should 
continue until conclusion of the pregnancy. Any termination of the pregnancy will be 
reported regardless of fetal status (presence or absence of anomalies) or indication for 
procedure.

Female participants who become pregnant
The Investigator will collect pregnancy information on any female participant, who 
becomes pregnant while participating in this study (see Section 8.3.5 Pregnancy). 
Information will be recorded on the appropriate form and submitted to the Sponsor within 
24 hours of learning of a participant's pregnancy. The participant will be followed to 
determine the outcome of the pregnancy. The Investigator will collect follow-up 
information on the participant and the neonate, which will be forwarded to the Sponsor. 
Monitoring of the participant should continue until conclusion of the pregnancy. Any 
termination of pregnancy will be reported, regardless of fetal status (presence or 
absence of anomalies) or indication for procedure.


RO7119929—F. Hoffmann-La Roche Ltd
134/Protocol WP41377, Version 3
While pregnancy itself is not considered to be an AE or SAE, and should not be 
recorded on the AE eCRF, any pregnancy complication will be reported as an AE or 
SAE. A spontaneous abortion is always considered to be an SAE and will be reported as 
such. Any post-study pregnancy related SAE considered reasonably related to the study 
treatment by the Investigator, will be reported to the Sponsor as described in 
Appendix 2. While the Investigator is not obligated to actively seek this information in 
former study participants, he/she may learn of an SAE through spontaneous reporting.
Any female participant who becomes pregnant while participating in the study will 
discontinue study treatment.
5
ABORTIONS
Any spontaneous abortion should be classified as a serious adverse event (as the 
Sponsor considers spontaneous abortions to be medically significant events), recorded 
on the Adverse Event eCRF, and reported to the Sponsor immediately (i.e., no more 
than 24 hours after learning of the event; see Section 5 of Appendix 2).
Any induced abortion due to maternal toxicity and/or embryo-fetal toxicity should also be 
classified as serious adverse event, recorded on the Adverse Event eCRF, and reported 
to the Sponsor immediately (i.e., no more than 24 hours after learning of the event; see 
Section 5 of Appendix 2).
Elective or therapeutic abortion not associated with an underlying maternal or 
embryofetal toxicity (e.g., induced abortion for personal reasons) does not require 
expedited reporting but should be reported as outcome of pregnancy on the Clinical Trial 
Pregnancy Reporting Form.
6
CONGENITAL ANOMALIES/BIRTH DEFECTS
Any congenital anomaly/birth defect in a child born to a female participant or female 
partner of a male patient exposed to study treatment should be classified as a serious 
adverse event, recorded on the Adverse Event eCRF, and reported to the Sponsor 
immediately (i.e., no more than 24 hours after learning of the event).


RO7119929—F. Hoffmann-La Roche Ltd
135/Protocol WP41377, Version 3
Appendix 6
Statistical Model Dose Evaluation
This appendix provides details of the design that will guide the RO7119929 
dose escalation stage of this study and of its operating characteristics through 
simulations. All analyses were performed using the R statistical software R version 3.5.1 
(2018-07-02) (R Core Team [2017]) (see Section 2 for additional information).
1.
RATIONALE FOR MODEL BASED DESIGN
The modified Continuous Reassessment Method (mCRM) design uses a statistical 
model that actively seeks a dose level close to the maximum tolerated dose (MTD) by 
using toxicity data from all enrolled evaluable participants to compute a precise dose-
toxicity curve. It locates the MTD efficiently and minimizes the number of participants 
treated at possibly pharmacological inactive dose levels. Such model-based designs 
have been successfully applied in many Phase I dose escalation studies (Schöffski et al. 
2004; Le Tourneau et al. 2009; Neuenschwander et al. 2008). The simulations in this 
appendix investigate the operating characteristics of the design as implemented for this 
study.
In this design, the MTD is defined as the dose maximizing the posterior probability that 
the DLT rate, π(MTD) ϵ [0.2, 0.35] while keeping the probability of overdose P{p(MTD) 
0.35} 0.25.
2.
STATISTICAL MODEL
A two-parameter logistic model will be used to fit the dose-toxicity relationship. The 
probability of DLT at dose dj, p(dj) is defined as (1)
where
and d* is the reference dose (in this case d* 10 mg). 


RO7119929—F. Hoffmann-La Roche Ltd
136/Protocol WP41377, Version 3
The model (1) thus can be rewritten as (2):
where and are the parameters to be estimated and assumed to follow a bivariate 
normal distribution.
2.1.GENERAL MODEL SETTING
2.1.1
Dose Grid
The following dose grid has been used: From 1 mg to 10 mg by 1 mg; from 10 mg to 20 
mg by 2 mg; from 20 mg to 50 mg by 5 mg; from 50 mg to 150 mg by 10 mg; from 150
mg to 250 mg by 25 mg.
2.1.2.
Maximum Dose Increments
The following rules for selecting the maximum allowed dose increment will be applied.
Maximum Dose Increments Relative to Dose Levels:

From 0 mg up to 10 mg a 200%, from above 10 mg up to 60 mg a 100% and above
60 mg a 50% maximum increments respectively are allowed.
Maximum Dose Increments Relative to DLT:

Until 1 DLT an increment of 200% and from 1 DLT an increment of 100% maximum 
are allowed. 
After the two rules have been applied the maximum allowed dose increment will be 
defined as the lower increment of the two resulting increments.
2.2.STOPPING RULES
The algorithm will recommend ending the dose escalation if any of the following criteria 
applies:

Enough information on MTD:
At least a minimum of 12 participants evaluated and at least 6 participants have 
been accrued near the MTD dose (where near means differing from the MTD by at 
most 10%) and the posterior probability that the MTD dose lies within the target 
toxicity interval is above 50% OR


RO7119929—F. Hoffmann-La Roche Ltd
137/Protocol WP41377, Version 3

Maximum dose is safe:
At least 6 participants have been observed at the maximum dose or near (differing 
from the maximum dose by at most 10%) and it is at least 50% likely that the 
probability of a DLT for the maximum dose is below 0.2. OR

Maximum number of participants:
The maximum allowable sample size of 60 DLT-evaluable participants has been 
reached.
2.3.Model Prior
A minimally informative bivariate normal prior for the parameters of the DLT-dose 
response curve () is constructed in order to have a weak impact on the final MTD 
determination (Neuenschwander et al 2008).
This minimally informative prior “neutral” component will be constructed based on the 
assumed not toxic and toxic dose levels. It is conservatively assumed to be very unlikely 
(with 70% confidence) that a 20% or higher DLT rate is associated with the first dose of 
RO7119929 dose escalation and to be very unlikely (with 90% confidence) that a 35% or 
lower DLT rate is associated with the dose of 250 mg. 
The parameters of the minimally informative prior are listed below (3):
where and are the parameters of the bivariate normal distribution.
The prior distribution used to determine the dose escalation decision for this study is 
shown in Figure 1.


RO7119929—F. Hoffmann-La Roche Ltd
138/Protocol WP41377, Version 3
Figure 1
Minimally Informative Prior
3.
MODEL PERFORMANCE EVALUATION
To illustrate how the design will perform, different escalation scenarios are explored and 
results are tabulated in Table 1. Each column represents four different situations: which 
dose would the model recommend, after seeing no DLTs in previous cohorts and when 
0, 1, 2, or 3 DLTs are observed in the current cohort. The evaluation is based on cohort 
size= 3. “Stop” indicates that the model would stop escalating and the study would be 
halted. 
As it can be seen in Table 1, in general if no DLTs are present, the model will suggest to 
escalate close to what the maximum increments allow, while in presence of one DLT the 
increments are really limited. Then, with 2 or 3 DLTs the model always recommends to 
de-escalate or STOP. Therefore, the results show that the design will adequately adapt 
the dose in the presence of observed DLTs. 
Table 1
Model Performance Evaluation
Dose 
Level
Dose 
(mg)
Next dose (% 
increment) if no DLT
Next dose (% 
increment) if 1 
DLT
Next dose (% 
increment) if 2 
DLTs
Next dose (% 
increment) if 3 
DLTs
1
1
3 (200%)
1 (0%)
stop
stop
2
3
9 (200%)
4 (33%)
1 (-67%)
stop
3
9
25 (178%)
12 (33%)
5 (-44%)
2 (-78%)
4
25
50 (100%)
25 (0%)
12 (-52%)
7 (-72%)
5
50
100 (100%)
60 (20%)
30 (-40%)
16 (-68%)
6
100
150 (50%)
130 (30%)
60 (-40%)
35 (-65%)
7
150
225 (50%)
225 (50%)
110 (-27%)
70 (-53%)


RO7119929—F. Hoffmann-La Roche Ltd
139/Protocol WP41377, Version 3
4.
SIMULATION STUDY
A simulation study is conducted to evaluate the operating characteristics for the chosen 
design parameters (priors, reference dose, stopping rule) under various dose-toxicity 
scenarios. 
4.1.DOSE-TOXICITY SCENARIOS
The different scenarios have been selected in order to cover a wide range of dose-
toxicity possibilities and to be able to quantify the risk and benefit, should these 
scenarios actually occur.
As shown in Figure 2, nine scenarios will be explored. The first eight represent different 
levels of toxicity from very toxic to a safe, while the last one considers the toxicity 
depicted in the prior as true toxicity. Some scenarios, especially the scenarios with high 
toxicity at low doses, are very extreme and not very likely, but still they will be 
informative on how the model would eventually perform, despite the likelihood of the 
scenario remains extremely low.
Figure 2
True Dose-toxicity Scenarios used for Simulation
4.2.SIMULATION RESULTS
For each of the scenarios, 1000 trials were simulated.
The design is evaluated using the following criteria: the MTD chosen, the number of 
participants treated at doses higher than the MTD and the total number of participants 
treated. For each criterion, the median (with the 10th and 90th percentiles) value from the 
1000 simulations is reported in Table 2. 


RO7119929—F. Hoffmann-La Roche Ltd
140/Protocol WP41377, Version 3
From these simulations, it can be seen that the design is able to provide a reliable 
estimate of the MTD. To be noted, in case of very low toxicity (dose range of target 
toxicity between150 and 350 mg), the maximum dose is selected as MTD.
This is also shown in Figure 3, where the distribution of MTDs identified in the various 
simulation runs is plotted against the true target toxicity range (red bars) for each 
scenario.
The number of participants treated over the dose toxicity interval is limited and also the 
sample size required to identify the MTD is reasonable: the median number of 
participants required to give an MTD recommendation based on cohorts of 3 participants 
is not larger than 36 participants across all scenarios. In case of high toxicity with low 
dose levels, the required number of treated participants is even lower.
Table 2
Simulation Results
Scenario
True target 
dose 
range
Overall N of 
participants
N participants 
treated above 
target toxicity
Proportion of DLTs 
in the trials
Dose selected 
as MTD
1
1 - 5
18 (3, 30)
0 (0, 15)
29.2% (22.2%, 
66.7%)
2 (0, 6)
2
5 - 9
27 (18, 39)
6 (0, 12)
25% (20.8%, 30.3%)
7 (4, 10)
3
5 - 20
30 (18, 42)
0 (0, 12)
23.3% (18.2%, 
30.6%)
10 (3, 25)
4
20 - 25
30 (21, 36)
3 (0, 9)
20% (18.2%, 23.8%)
25 (16, 25)
5
15 - 50
33 (21, 45)
0 (0, 12)
20% (16.7%, 25.5%)
25 (10, 50)
6
30 - 60
33 (24, 45)
3 (0, 12)
19.4% (16.6%, 
24.2%)
45 (25, 70)
7
70 - 120
36 (27, 45)
3 (0, 12)
16.7% (13.3%, 
21.4%)
100 (50, 140)
8
150 - 350
33 (27, 45)
0 (0, 0)
12.1% (3.7%, 16.7%)
250 (100, 250)
9
5 - 15
27 (18, 42)
0 (0, 15)
23.8% (19%, 30.8%)
9 (3, 20)
Figure 3
Summary of 1000 Simulations: Plot of Distribution of MTDs 
versus Target Toxicity Range


RO7119929—F. Hoffmann-La Roche Ltd
141/Protocol WP41377, Version 3
4.3. MODIFICATIONS FOR STEP-UP DOSE ESCALATION IN PART A 
SCHEDULE 2
The modifications to the mCRM to accommodate the step-up dosing in Part A Schedule 2 are as 
follows. The mCRM model will use the (weighted) average dose across all doses received until the 
end of the DLT period of 28 days or the occurrence of a DLT, whichever comes first. The outcome 
of the mCRM model will be the new average of the first four QW doses. Since Cycle 1 Day 1 and 
Cycle 1 Day 8 doses are fixed (details see Section 4.1.1.1.2), it provides a recommended dose for 
the target dose to be given on Cycle 1 Day 15. The Cycle 1 Day 15 dose will subsequently be 
administered QW during each subsequent cycle.
The model will use a non-informative prior and accumulating data from Part A Schedule 1 (flat-
dose) and Part A Schedule 2 (step-up dosing) to guide the recommendation for the target dose. 
For each evaluable patient, a weighted average dose will be calculated. Weights are set such that 
for each week passed between the event and the dose, the weight for the dose will be halved.
The average dose adjusted for time of dosing is computed as follows:
Example: 
Cycle 1 Day 1 dose = 1 mg, Cycle 1 Day 8 dose = 3 mg, Cycle 1 Day 15 dose = 6 mg, and Cycle 1
Day 21 dose = 6 mg

Participant with DLT before Cycle 1 Day 8 → Average dose 1 mg

Participant with DLT before Cycle 1 Day 15 → Average dose (1 mg (23 mg))/3 2.3 mg

Participant with DLT before Cycle 1 Day 21 → Average dose (1 mg 23 mg 46 mg)/7 
4.4 mg 

Participant with DLT after Cycle 1 Day 21 or without DLT → Average dose (1 mg 
23 mg 46 mg 8×6 mg)/15 5.3 mg
Since the mCRM model for Part A implicitly uses the average dose, the same mCRM model can 
be used for all dose-escalation parts in this study.
References
Le Tourneau C, Lee JJ, and LL Siu LL. Dose Escalation Methods in Phase I Cancer 
Clinical Trials. J Natl Cancer Inst. 2009. 101:708-20.


RO7119929—F. Hoffmann-La Roche Ltd
142/Protocol WP41377, Version 3
Neuenschwander B, Branson M, and Gsponer T. Critical Aspects of the Bayesian 
Approach to Phase I Cancer Trials. 2008. Stat Med. 27(13): 2420-39.
R Core Team. 2017. R: A Language and Environment for Statistical Computing. Vienna, 
Austria: R Foundation for Statistical Computing. https://www.R-project.org/.
Schöffski P, Riggert S, Fumoleau P, et al. Phase I Trial of Intravenous Aviscumine 
(rViscumin) in Patients with Solid Tumors: A Study of the European Organization for 
Research and Treatment of Cancer New Drug Development Group. 2004. Ann Oncol. 
15:1816–24.


RO7119929—F. Hoffmann-La Roche Ltd
143/Protocol WP41377, Version 3
Appendix 7 Prohibited Co-medications in Respect to 
RO7119929 Dosing
Table 3
Prohibited Co-medications
Restrictions for 
RO7119929 
dosing
Enzymes
Enzyme Modulation
Co-medications
Prohibited
CYP2C9 and 
CP2C19 strong 
and moderate 
inhibitors 
Potential increase of 
RO7119929 exposure 
during first pass by 
inhibiting the conversion 
of RO7119929 by 
CYP2C9 and CYP2C19
amiodarone, 
felabamate, 
fluconazole, 
fluoxetine, 
fluvoxamine, 
miconazole, 
piperine, ticlopidine
Table 4
Prohibited Co-medications with Time Window in Respect to 
RO7119929 Dosing
Restrictions for 
RO7119929 
dosing
Enzymes
Enzyme 
Modulation
Co-medications
Prohibited co-
medication for at 
least 4h before 
and 2h after
RO7119929 
dosing
CYP3A4 
moderate 
and strong 
substrates
Potential CYP3A 
inhibition by 
RO7119929 in 
the GI tract 
alfentanil, alprazolam, aprepitant,  
avanafil, budesonide, buspirone, 
colchicine, conivaptan, 
darifenacin, darunavir, dasatinib, 
dronedarone, ebastine, eletriptan, 
eliglustat, eplerenone, 
everolimus, felodipine, ibrutinib, 
lomitapide, lovastatin, lurasidone, 
maraviroc, midazolam, naloxegol, 
nisoldipine, pimozide, quetiapine, 
rilpivirine, rivaroxaban, saquinavir, 
sildenafil, sirolimus, tacrolimus, 
tadalafil, ticagrelor, tipranavir, 
tolvaptan, triazolam, vardenafil
Prohibited co-
medication for at 
least 4h before 
and 8h after 
RO7119929 
dosing
OATP1B1/O
ATP1B3 
substrates
and inhibitors
Potential 
OATP1B1 
inhibition by 
RO7117418 and 
potential 
increase of 
RO7117418 
exposure as it is 
a OATP1B1 
substrate and 
inhibitor
asunaprevir, atazanavir,
atorvastatin, bosentan, 
cerivastatin, clarithromycin, 
cyclosporine, danoprevir, 
docetaxel, erythromycin, 
fexofenadine, gemfibrozil, 
glyburide, lopinavir, nateglinide, 
paclitaxel, pitavastatin, 
pravastatin, repaglinide, rifampin, 
ritonavir, rosuvastatin, simeprevir, 
simvastatin
Prohibited co-
medications for at 
least 4h before 
UGT1A9 and 
UGT1A1/1A3 
inhibitors
Potential 
increase of 
RO7117418 
amitriptyline, aurothiomalate, 
dacomitinib, dasabuvir, 
deferasirox, diflunisal, 


RO7119929—F. Hoffmann-La Roche Ltd
144/Protocol WP41377, Version 3
Restrictions for 
RO7119929 
dosing
Enzymes
Enzyme 
Modulation
Co-medications
and 8h after 
RO7119929 
dosing
exposure  as it 
is mainly 
metabolized by 
UGT1A9 and 
UGT1A1/1A3
eltrombopag, enasidenib, 
ertugliflozin, flunitrazepam, 
flurbiprofen, (fos)phenytoin, 
fostamatinib, glecaprevir, 
indinavir, indometacin, 
isavuconazole, ketoconazole, 
mefenamic acid, niflumic acid, 
nilotinib, ombitasvir, paritaprevir, 
pazopanib, pibrentasvir, 
probenecid, propofol, regorafenib, 
rucaparib, silibinin, sorafenib, 
valproic acid


RO7119929—F. Hoffmann-La Roche Ltd
145/Protocol WP41377, Version 3
Appendix 8
Response Evaluation Criteria in Solid Tumors – Version 1.1 –
Modified Excerpt from Original Publication with Addition of 
Supplementary Explanations 
The following text is based on Eisenhauer EA, Therasse P, Bogaerts J, et al. New 
response evaluation criteria in solid tumours: Revised RECIST guideline (version 1.1). 
Eur J Cancer. 2009;45:228-47.
1
MEASURABILITY OF TUMOR AT BASELINE 
1.1
DEFINITIONS
At baseline, tumor lesions/lymph nodes will be categorized measurable or 
non-measurable as follows: 
1.1.1
Measurable Tumor Lesions
Tumor lesions must be accurately measured in at least one dimension (longest diameter 
in the plane of measurement is to be recorded) with a minimum size of: 

10 mm by CT or MRI scan (CT/MRI scan slice thickness/interval no greater than 
5 mm). 

10 mm caliper measurement by clinical exam (lesions which cannot be accurately 
measured with calipers should be recorded as non-measurable). 

20 mm by chest X-ray. 
Malignant lymph nodes: To be considered pathologically enlarged and measurable, a 
lymph node must be ≥15 mm in short axis when assessed by CT scan (CT scan slice 
thickness recommended to be not greater than 5 mm). At baseline and in follow-up, only 
the short axis will be measured and followed. See also Section 2.2 below on ‘Baseline 
documentation of target and non-target lesions’ for information on lymph node 
measurement. 
1.1.2
Non-Measurable Tumor Lesions
Non-measurable tumor lesions encompass small lesions (longest diameter10 mm or 
pathological lymph nodes with 10 to15 mm short axis) as well as truly 
non-measurable lesions. Lesions considered truly non-measurable include: 
leptomeningeal disease, ascites, pleural or pericardial effusion, inﬂammatory breast 
disease, lymphangitic involvement of skin or lung, peritoneal spread, and abdominal 
masses/abdominal organomegaly identiﬁed by physical exam that is not measurable by 
reproducible imaging techniques. 


RO7119929—F. Hoffmann-La Roche Ltd
146/Protocol WP41377, Version 3
1.1.3
Special Considerations Regarding Lesion Measurability 
Bone lesions, cystic lesions, and lesions previously treated with local therapy require 
particular comment: 
Bone lesions:

Bone scan, PET scan, or plain ﬁlms are not considered adequate imaging 
techniques to measure bone lesions. However, these techniques can be used to 
conﬁrm the presence or disappearance of bone lesions. 

Lytic bone lesions or mixed lytic-blastic lesions, with identiﬁable soft tissue 
components, that can be evaluated by cross-sectional imaging techniques such as 
CT or MRI can be considered as measurable lesions if the soft tissue component 
meets the deﬁnition of measurability described above. 

Blastic bone lesions are non-measurable. 
Cystic lesions:

Lesions that meet the criteria for radiographically deﬁned simple cysts should not be 
considered as malignant lesions (neither measurable nor non-measurable) since 
they are, by deﬁnition, simple cysts. 

“Cystic lesions” thought to represent cystic metastases can be considered as 
measurable lesions, if they meet the deﬁnition of measurability described above. 
'However, if non-cystic lesions are present in the same participant, these are 
preferred for selection as target lesions. 
Lesions with prior local treatment: 

Tumor lesions situated in a previously irradiated area, or in an area subjected to 
other loco-regional therapy, are usually not considered measurable unless there has 
been demonstrated progression in the lesion. Study protocols should detail the 
conditions under which such lesions would be considered measurable. 
1.2
TARGET LESIONS: SPECIFICATIONS BY METHODS OF 
MEASUREMENTS 
1.2.1
Measurement of Lesions 
All measurements should be recorded in metric notation, using calipers if clinically 
assessed. All baseline evaluations should be performed as close as possible to the 
treatment start and never more than 4 weeks before the beginning of the treatment. 


RO7119929—F. Hoffmann-La Roche Ltd
147/Protocol WP41377, Version 3
1.2.2
Method of Assessment 
The same method of assessment and the same technique should be used to 
characterize each identiﬁed and reported lesion at baseline and during study. Imaging 
based evaluation should always be the preferred option. 
Clinical lesions: Clinical lesions will only be considered measurable when they are 
superﬁcial and ≥10 mm diameter as assessed using calipers (e.g., skin nodules). For 
the case of skin lesions, documentation by color photography including a ruler to 
estimate the size of the lesion is suggested. 
Chest X-ray: Chest CT is preferred over chest X-ray, particularly when progression is an 
important endpoint, since CT is more sensitive than X-ray, particularly in identifying new 
lesions. However, lesions on chest X-ray may be considered measurable if they are 
clearly deﬁned and surrounded by aerated lung.
CT, MRI: CT is the best currently available and reproducible method to measure lesions 
selected for response assessment. This guideline has deﬁned measurability of lesions 
on CT scan based on the assumption that CT slice thickness is 5 mm or less. When CT 
scans have slice thickness greater than 5 mm, the minimum size for a measurable lesion 
should be twice the slice thickness. MRI is also acceptable. 
If prior to enrollment it is known that a participant is unable to undergo CT scans with IV 
contrast due to allergy or renal insufficiency, the decision as to whether a non-contrast 
CT or MRI (without IV contrast) will be used to evaluate the subject at baseline and 
during study, should be guided by the tumor type under investigation and the anatomic 
location of the disease. For participants who develop contraindications to contrast after 
baseline contrast CT is done, the decision as to whether non-contrast CT or MRI 
(enhanced or non-enhanced) will be performed, should also be based on the tumor type, 
anatomic location of the disease and should be optimized to allow for comparison to the 
prior studies if possible. Each case should be discussed with the radiologist to determine 
if substitution of these other approaches is possible and, if not, the participant should be 
considered not evaluable from that point forward.
Ultrasound: Ultrasound is not useful in assessment of lesion size and should not be used 
as a method of measurement. 
Endoscopy, Laparoscopy, Tumor Markers, Cytology, and Histology: The utilization of 
these techniques for objective tumor evaluation cannot generally be advised but will be 
dependent on the study design. 


RO7119929—F. Hoffmann-La Roche Ltd
148/Protocol WP41377, Version 3
2
TUMOR RESPONSE EVALUATION 
2.1
ASSESSMENT OF OVERALL TUMOR BURDEN AND 
MEASURABLE DISEASE 
To assess OR or future progression, it is necessary to estimate the overall tumor burden 
at baseline and use this as a comparator for subsequent measurements. Measurable 
disease is deﬁned by the presence of at least one measurable lesion (as detailed above 
in Section 1.1.1). 
2.2
BASELINE DOCUMENTATION OF ‘TARGET’ AND 
‘NON-TARGET’ LESIONS
When more than one measurable lesion is present at baseline, all lesions up to a 
maximum of ﬁve lesions total (and a maximum of 2 lesions per organ) representative of 
all involved organs should be identiﬁed as target lesions and will be recorded and 
measured at baseline.
This means in instances where participants have only one or 2 organ sites involved a 
maximum of 2 (one site) and 4 lesions (2 sites), respectively, will be recorded. Other 
lesions (albeit measurable) in that organ will be recorded as non-measurable lesions 
(even if size is10 mm by CT scan).
Target lesions should be selected on the basis of their size (lesions with the longest 
diameter), be representative of all involved organs, but in addition should be 
reproducible in repeated measurements. It may be the case that, on occasion, the 
largest lesion does not lend itself to reproducible measurement in which circumstance 
the next largest lesion which can be measured reproducibly should be selected.
Lymph nodes merit special mention since they are normal anatomical structures which 
may be visible by imaging even if not involved by tumor. As noted in Section 1.1.1, 
pathological nodes which are deﬁned as measurable and may be identiﬁed as target 
lesions must meet the criterion of a short axis of ≥15 mm by CT scan. Only the short 
axis of these nodes will contribute to the baseline sum. The short axis of the node is the 
diameter normally used by radiologists to judge if a node is involved by solid tumor. 
Nodal size is normally reported as 2 dimensions in the plane in which the image is 
obtained (for CT scan this is almost always the axial plane; for MRI the plane of 
acquisition may be axial, sagittal or coronal). The smaller of these measures is the short 
axis. For example, an abdominal node which is reported as being 20 mm x 30 mm has a 
short axis of 20 mm and qualiﬁes as a malignant, measurable node. In this example, 
20 mm should be recorded as the node measurement. All other pathological nodes 
(those with short axis 10 mm but15 mm) should be considered non-target lesions. 


RO7119929—F. Hoffmann-La Roche Ltd
149/Protocol WP41377, Version 3
Nodes that have a short axis < 10 mm are considered non-pathological and should not 
be recorded or followed. 
A sum of the diameters (longest for non-nodal lesions, short axis for nodal lesions) for all 
target lesions will be calculated and reported as the baseline sum diameters. If lymph 
nodes are to be included in the sum, then as noted above, only the short axis is added 
into the sum. The baseline sum diameters will be used as reference to further 
characterize any objective tumor regression in the measurable dimension of the disease. 
All other lesions (or sites of disease) including pathological lymph nodes should be 
identiﬁed as non-target lesions and should also be recorded at baseline. Measurements 
are not required and these lesions should be followed as ‘present’, ‘absent’, or in rare 
cases ‘unequivocal progression’ (Section 2.3.4).
In addition, it is possible to record multiple non-target lesions involving the same organ 
as a single item on the CRF (e.g., ‘multiple enlarged pelvic lymph nodes’ or ‘multiple liver 
metastases’). 
2.3
RESPONSE CRITERIA
This section provides the deﬁnitions of the criteria used to determine objective tumor 
response for target lesions. 
2.3.1
Evaluation of Target Lesions 

CR: Disappearance of all target lesions. Any pathological lymph nodes (whether 
target or non-target) must have reduction in short axis to10 mm.

PR: At least a 30% decrease in the sum of diameters of target lesions, taking as 
reference the baseline sum diameters. 

PD: At least a 20% increase in the sum of diameters of target lesions, taking as 
reference the smallest sum on study including baseline (nadir). In addition to the 
relative increase of 20%, the sum must also demonstrate an absolute increase of at
least 5 mm. (Note: the appearance of one or more new lesions is also considered 
progression).

SD: Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for 
PD. 
2.3.2
Special Notes on the Assessment of Target Lesions
Lymph nodes: Lymph nodes identiﬁed as target lesions should always have the actual 
short axis measurement recorded (measured in the same anatomical plane as the 
baseline examination), even if the nodes regress to below 10 mm on study. This means 
that when lymph nodes are included as target lesions, the ‘sum’ of lesions may not be 


RO7119929—F. Hoffmann-La Roche Ltd
150/Protocol WP41377, Version 3
zero even if CR criteria are met, since a normal lymph node is deﬁned as having a short 
axis of10 mm. 
Target lesions that become ‘too small to measure’: while on study, all lesions (nodal and 
non-nodal) recorded at baseline should have their actual measurements recorded at 
each subsequent evaluation, even when very small (e.g., 2 mm). However, sometimes 
lesions or lymph nodes which are recorded as target lesions at baseline become so faint 
on CT scan that the radiologist may not feel comfortable assigning an exact measure 
and may report them as being ‘too small to measure’. When this occurs it is important 
that a value be recorded on the CRF:

If it is the opinion of the radiologist that the lesion has likely disappeared, the 
measurement should be recorded as 0 mm.

If the lesion is believed to be present and is faintly seen but too small to measure, a 
default value of 5 mm should be assigned and BML (below measurable limit) should 
be ticked (Note: It is less likely that this rule will be used for lymph nodes since they 
usually have a deﬁnable size when normal and are frequently surrounded by fat 
such as in the retroperitoneum; however, if a lymph node is believed to be present 
and is faintly seen but too small to measure, a default value of 5 mm should be 
assigned in this circumstance as well and BML should also be ticked). 
To reiterate, however, if the radiologist is able to provide an actual measure, that should 
be recorded, even if it is below 5 mm and in that case BML should not be ticked (BML is 
equivalent to a less than sign <).
Lesions that split or coalesce on treatment: When non-nodal lesions ‘fragment’, the 
longest diameters of the fragmented portions should be added together to calculate the 
target lesion sum. Similarly, as lesions coalesce, a plane between them may be 
maintained that would aid in obtaining maximal diameter measurements of each 
individual lesion. If the lesions have truly coalesced such that they are no longer 
separable, the vector of the longest diameter in this instance should be the maximal 
longest diameter for the ‘coalesced lesion’. 
2.3.3
Evaluation of Non-Target Lesions 
This section provides the deﬁnitions of the criteria used to determine the tumor response
for the group of non-target lesions. While some non-target lesions may actually be 
measurable, they need not be measured and instead should be assessed only 
qualitatively at the time-points speciﬁed in the protocol. 
CR: Disappearance of all non-target lesions (and, if applicable, normalization of tumor 
marker level). All lymph nodes must be non-pathological in size (10 mm short axis).


RO7119929—F. Hoffmann-La Roche Ltd
151/Protocol WP41377, Version 3
Non-CR/Non-PD: Persistence of one or more non-target lesion(s) and/or maintenance of 
tumor marker level above the normal limits.
PD: Unequivocal progression (Section 2.3.4) of existing non-target lesions. The 
appearance of one or more new lesions is also considered progression. 
2.3.4
Special Notes on Assessment of Progression of Non-target 
Disease 
When the participant also has measurable disease: In this setting, to achieve 
‘unequivocal progression’ on the basis of the non-target disease, there must be an 
overall level of substantial worsening in non-target disease in a magnitude that, even in 
presence of SD or PR in target disease, the overall tumor burden has increased 
sufficiently to merit discontinuation of therapy. A modest ‘increase’ in the size of one or 
more non-target lesions is usually not sufficient to qualify for unequivocal progression 
status. The designation of overall progression solely on the basis of change in non-target 
disease in the face of SD or PR of target disease will therefore be extremely rare. 
When the participant has only non-measurable disease: this circumstance arises in 
some phase III trials when it is not a criterion of study entry to have measurable disease. 
The same general concepts apply here as noted above, however, in this instance there 
is no measurable disease assessment to factor into the interpretation of an increase in 
non-measurable disease burden. Because worsening in non-target disease cannot be 
easily quantiﬁed (by deﬁnition: if all lesions are truly non-measurable), a useful test that 
can be applied when assessing participants for unequivocal progression is to consider if 
the increase in overall disease burden based on the change in non-measurable disease 
is comparable in magnitude to the increase that would be required to declare PD for 
measurable disease: i.e., an increase in tumor burden representing an additional 73% 
increase in ‘volume’ (which is equivalent to a 20% increase diameter in a measurable 
lesion). Examples include an increase in a pleural effusion from ‘trace’ to ‘large’, an 
increase in lymphangitic disease from localized to widespread, or may be described in 
protocols as ‘sufficient to require a change in therapy’. If ‘unequivocal progression’ is 
seen, the participant should be considered to have had overall PD at that point. While it 
would be ideal to have objective criteria to apply to non-measurable disease, the very 
nature of that disease makes it impossible to do so; therefore the increase must be 
substantial. 
2.3.5
New Lesions 
The appearance of new malignant lesions denotes disease progression; therefore, some 
comments on detection of new lesions are important. There are no speciﬁc criteria for 
the identiﬁcation of new radiographic lesions; however, the ﬁnding of a new lesion 
should be unequivocal: i.e., not attributable to differences in scanning technique, change 


RO7119929—F. Hoffmann-La Roche Ltd
152/Protocol WP41377, Version 3
in imaging modality or ﬁndings thought to represent something other than tumor (for 
example, some ‘new’ bone lesions may be simply healing or ﬂare of pre-existing 
lesions). This is particularly important when the participant’s baseline lesions show PR or 
CR. For example, necrosis of a liver lesion may be reported on a CT scan report as a 
‘new’ cystic lesion, which it is not. 
A lesion identiﬁed during the study in an anatomical location that was not scanned at 
baseline is considered a new lesion and will indicate disease progression. 
If a new lesion is equivocal, for example because of its small size, continued therapy and 
follow-up evaluation will clarify if it represents truly new disease. If repeat scans conﬁrm 
there is deﬁnitely a new lesion, then progression should be declared using the date of 
the initial scan. 
2.4
EVALUATION OF RESPONSE
2.4.1
Time-point Response (Overall Response)
It is assumed that at each protocol speciﬁed time-point, a response assessment occurs. 
Table 1 provides a summary of the overall response status calculation at each time-point 
for participants who have measurable disease at baseline. 
When participants have non-measurable (therefore non-target) disease only, Table 2 is 
to be used.
Table 1
Time-Point Response – Target (w/wo non-target) Lesions
Target Lesions
Non-target Lesions
New Lesions
Overall Response
CR
CR
No
CR
CR
Non-CR/non-PD
No
PR
CR
Not evaluated
No
PR
PR
Non-PD or not all evaluated
No
PR
SD
Non-PD or not all evaluated
No
SD
Not all evaluated
Non-PD
No
NE
PD
Any
Yes or No
PD
Any
PD
Yes or No
PD
Any
Any
Yes
PD
CR complete response; NE = inevaluable; PD = progressive disease; PR = partial response; 
SD = stable disease.


RO7119929—F. Hoffmann-La Roche Ltd
153/Protocol WP41377, Version 3
Table 2
Time-Point Response – Non-Target Lesions Only
Non-target Lesions
New Lesions
Overall Response
CR
No
CR
Non-CR/non-PD
No
Non-CR/non-PDa
Not all evaluated
No
NE
Unequivocal PD
Yes or No
PD
Any
Yes
PD
CR = complete response; NE = inevaluable; PD = progressive disease; SD = stable disease.
a  ‘Non-CR/Non-PD” is preferred over ‘SD’ since SD is increasingly used as an endpoint for 
assessment of efficacy in some trials; to assign this category when no lesions can be 
measured is not thus advisable.
2.4.2
Missing Assessments and Not-Evaluable Designation
When no imaging/measurement is done at all at a particular time-point, the participant is 
not evaluable at that time-point. If only a subset of lesion measurements are made at an 
assessment, usually the case is also considered not evaluable at that time-point, unless 
a convincing argument can be made that the contribution of the individual missing 
lesion(s) would not change the assigned time-point response. This would be most likely 
to happen in the case of PD. 
For example, if a participant had a baseline sum of 50 mm with 3 measured lesions and 
during study only 2 lesions were assessed, but those gave a sum of 80 mm, the 
participant will have achieved PD status, regardless of the contribution of the missing 
lesion. 
If one or more target lesions were not assessed either because the scan was not done, 
or could not be assessed because of poor image quality or obstructed view, the 
Response for Target Lesions should be “Unable to Assess” since the participant is not 
evaluable. Similarly, if one or more non-target lesions are indicated as ‘not assessed’, 
the response for non-target lesions should be “Unable to Assess” (except where there is 
clear progression). Overall response would be “Unable to Assess” if either the target 
response or the non-target response is “Unable to Assess” (except where this is clear 
evidence of progression) as this equates with the case being not evaluable at that 
time-point.


RO7119929—F. Hoffmann-La Roche Ltd
154/Protocol WP41377, Version 3
Table 3
Best Overall Response when Confirmation is Required
2.4.3
Special Notes on Response Assessment 
When nodal disease is included in the sum of target lesions and the nodes decrease to 
‘normal’ size (10 mm), they may still have a measurement reported on scans. This 
measurement should be recorded even though the nodes are normal in order not to 
overstate progression should it be based on increase in size of the nodes. As noted 
earlier, this means that participants with CR may not have a total sum of ‘zero’ on the 
CRF. 
Participants with a global deterioration of health status requiring discontinuation of 
treatment without objective evidence of disease progression at that time should be 
reported as ‘symptomatic deterioration’. Every effort should be made to document 
objective progression even after discontinuation of treatment. Symptomatic deterioration 
is not a descriptor of an OR: it is a reason for stopping study therapy. The OR status of 
such participants is to be determined by evaluation of target and non-target disease as 
shown in Tables 1–3. 
For equivocal ﬁndings of progression (e.g., very small and uncertain new lesions; cystic 
changes or necrosis in existing lesions), treatment may continue until the next scheduled 
assessment. If at the next scheduled assessment, progression is conﬁrmed, the date of 
progression should be the earlier date when progression was suspected. 
In studies where participants with advanced disease are eligible (i.e., primary disease 
still or partially present), the primary tumor should be also captured under target or 
non-target lesions as appropriate. This is to avoid wrong assessments of complete 
overall response by statistical programs while the primary is still present but not 
evaluable.


RO7119929—F. Hoffmann-La Roche Ltd
155/Protocol WP41377, Version 3
Appendix 9 Modified RECIST v1.1 for Immune-Based 
Therapeutics (iRECIST)
Conventional response criteria may not be adequate to characterize the anti-tumor 
activity of immunotherapeutic agents, which can produce delayed responses that may 
be preceded by initial apparent radiographic progression, including the appearance of 
new lesions. Therefore, immunotherapy-specific response criteria adaptations to 
Response Evaluation Criteria in Solid Tumors, Version 1.1 (RECIST v1.1; Eisenhauer et
al. 2009) have been developed to allow for unconventional response and progression 
patterns. These include modified RECIST v1.1 for immune-based therapeutics 
(iRECIST; Seymour et al. 2017), which was developed by the RECIST working group in 
an effort to create a common set of criteria that the cancer immunotherapy field could 
apply to clinical trials. 
Response evaluation through use of iRECIST requires collection of tumor assessment 
data after radiographic progression per RECIST v1.1. Details regarding lesion evaluation 
are described below. When not otherwise specified, RECIST v1.1 conventions will apply.
Criteria for determining overall response at a single time point per iRECIST are also 
summarized below. Of note, overall response per iRECIST will not be captured in the 
electronic Case Report Form (eCRF), but will instead be calculated programmatically by 
the Sponsor on the basis of investigator-assessed individual lesion data recorded in the 
eCRF.
iRECIST response status is not a specific component of treatment discontinuation 
criteria, including decisions about whether to continue treatment beyond progression per 
RECIST v1.1. Investigators should instead take into account radiologic data and clinical 
status in making such decisions 
EVALUATION OF LESIONS TO SUPPORT iRECIST RESPONSE ASSESSMENT 
AFTER DISEASE PROGRESSION PER RECIST V1.1
iRECIST is an extension of RECIST v1.1 that allows for response assessment following 
disease progression per RECIST v1.1. RECIST v1.1 rules for categorizing lesions as 
measurable or non-measurable and measuring lesions also apply to iRECIST. After 
disease progression per RECIST v1.1, the same target and non-target lesions selected 
at baseline will continue to be followed, along with any new lesions that develop, to 
support iRECIST response evaluations, as described below and summarized in Table 5. 
Once a lesion has been categorized as a target, non-target, or new lesion, it will remain 
classified as such. 


RO7119929—F. Hoffmann-La Roche Ltd
156/Protocol WP41377, Version 3
TARGET LESIONS 
The target lesions selected at baseline should continue to be measured at all tumor 
assessment time points after disease progression per RECIST v1.1, according to 
RECIST v1.1 conventions. 
NON-TARGET LESIONS 
Non-target lesions selected at baseline should continue to be followed at all tumor 
assessment time points after disease progression per RECIST v1.1. At each time point, 
non-target lesions should continue to be categorized as "absent" (complete response 
[CR]), "unequivocal progression" (progressive disease [PD]), or "present without 
unequivocal progression" (non-CR/non-PD), as defined by RECIST v1.1. In addition, any 
non-target lesions that were categorized as PD at the previous time point should be 
evaluated to determine whether there has been any further increase in size. 
NEW LESIONS
New lesions identified after baseline will be evaluated for measurability with use of the 
same criteria applied to prospective target lesions at baseline per RECIST v1.1 (eg, non-
lymph node lesions must be 10 mm on the longest diameter; new lymph nodes must be 
15 mm on the short axis [see note below]). All new lesions (measurable or non-
measurable) must be assessed and recorded at the time of identification and at all 
subsequent tumor assessment time points. 
Up to a maximum of five measurable new lesions total (with a maximum of two lesions 
per organ) should be selected and measured at each time point. New lesions that are 
not measurable at first appearance but meet measurability criteria at a subsequent time 
point should be measured from that point on, if the maximum number of measurable 
new lesions has not been reached. However, for calculation of the sum of diameters for 
new lesions, iRECIST excludes measurements from new lesions that were not 
measurable at first appearance. 
All non-measurable new lesions (including those that subsequently become measurable) 
and additional measurable new lesions (in excess of five total or two per organ) should 
be assessed to determine whether there is any increase in size relative to the previous 
assessment time point. 
Note regarding new lymph node lesions: If at first appearance the short axis of a lymph 
node lesion is 15 mm, it will be considered a measurable new lesion. If at first 


RO7119929—F. Hoffmann-La Roche Ltd
157/Protocol WP41377, Version 3
appearance the short axis of a lymph node lesion is 10 mm and 15 mm, the lymph 
node will not be considered measurable but will still be considered a new lesion and 
should be identified as a non-measurable new lesion. If at first appearance the short axis 
of a lymph node is 10 mm, the lymph node should not be considered pathological and 
should not be considered a new lesion. A lymph node can subsequently become 
measurable, when the short axis is 15 mm. Measurable new lymph node lesions should 
continue to be measured at all subsequent time points, even if the short axis decreases 
to 15 mm (or even 10 mm).
Table 5
Guidelines for Evaluation of Lesions to Support iRECIST 
Response Assessment after Disease Progression per 
RECIST v1.1
Lesion Type
Evaluation of Lesions to Support iRECIST Response Assessment after 
Disease Progression per RECIST v1.1
Target 
lesions

Measurements should be continued according to RECIST v1.1 conventions.
Non-target 
lesions
Non-target lesions should continue to be categorized as absent (CR), 
unequivocal progression (PD), or present without unequivocal progression 
(non-CR/non-PD), as defined by RECIST v1.1. In addition, any non-target 
lesions that were categorized as PD at the previous time point should be 
evaluated to determine whether there has been any further increase in size.
New lesions

New lesions should be evaluated for measurability per RECIST v1.1.

All new lesions (measurable or non-measurable) must be assessed and 
recorded at the time of identification and at all subsequent tumor 
assessment time points.

Up to a maximum of five measurable new lesions total (with a maximum of 
two lesions per organ) should be selected and measured at each time point.

All non-measurable new lesions (including those that subsequently become 
measurable) and additional measurable new lesions (in excess of five total 
or two per organ) should be assessed to determine whether there is any 
increase in size relative to the previous assessment time point.
Abbreviations: CRcomplete response; PDprogressive disease; RECIST v1.1Response 
Evaluation Criteria in Solid Tumors, Version 1.
SUMMARY OF CRITERIA FOR OVERALL RESPONSE AT A SINGLE TIMEPOINT 
Time point response per iRECIST will be calculated by the Sponsor. A complete 
description of the iRECIST criteria can be found in a publication by Seymour et al. 
(2017). 


RO7119929—F. Hoffmann-La Roche Ltd
158/Protocol WP41377, Version 3
References 
Eisenhauer EA, Therasse P, Bogaerts J, et al. New response evaluation criteria in solid tumors: 
revised RECIST guideline (version 1.1). Eur J Cancer 2009;45:228-47.
Seymour L, Bogaerts J, Perrone A, et al. On behalf of the RECIST working group. iRECIST: 
guidelines for response criteria for use in trials testing immunotherapeutics. Lancet Oncol 
2017;18:e143- e52. 
Wolchok JD, Hoos A, O'Day S, et al. Guidelines for the evaluation of immune therapy activity in 
solid tumors: immune-related response criteria. Clin Cancer Res 2009;15:7412-20.


RO7119929—F. Hoffmann-La Roche Ltd
159/Protocol WP41377, Version 3
Appendix 10
American Association for the Study of Liver Disease (AASLD) 
Criteria: Algorithm for Investigation of Small Nodules Found on 
Screening in Patients at Risk for HCC
MDCTMulti-detector CT scan.
Reference: Bruix J, Sherman M. Management of hepatocellular carcinoma: An Update.
Hepatology 2011; 53:102022.


RO7119929—F. Hoffmann-La Roche Ltd
160/Protocol WP41377, Version 3
Appendix 11
Child-Pugh Classification
Scoring
*Prolonged time.
Classification
References
Child CG, Turcotte JG. Surgery and portal hypertension. In: The liver and portal 
hypertension. Edited by Child CG. Philadelphia, Saunders;1964:50-64.
Pugh RN, Murray-Lyon IM, Dawson JL, et al. Transection of the oesophagus or bleeding 
oesophageal varices. Br J Surg 1973;60:646-9


RO7119929—F. Hoffmann-La Roche Ltd
161/Protocol WP41377, Version 3
Appendix 12
Preexisting Autoimmune Diseases and Immune Deficiencies
Participants should be carefully questioned regarding their history of acquired or 
congenital immune deficiencies or autoimmune disease. Participants with any history of 
immune deficiencies or autoimmune disease listed in the table below are excluded from 
participating in the study. Possible exceptions to this exclusion could be patients with a 
medical history of such entities as atopic disease or childhood arthralgias where the 
clinical suspicion of autoimmune disease is low. Patients with a history of autoimmune-
related hypothyroidism on a stable dose of thyroid replacement hormone may be eligible 
for this study. In addition, transient autoimmune manifestations of an acute infectious 
disease that resolved upon treatment of the infectious agent are not excluded (e.g., 
acute Lyme arthritis). Contact the Medical Monitor regarding any uncertainty over 
autoimmune exclusions.
Table 1
Autoimmune Disease and Immune Deficiencies


RO7119929—F. Hoffmann-La Roche Ltd
162/Protocol WP41377, Version 3
Appendix 13
Schedule of Activities for Tocilizumab Treatment for Severe or
Life-Threatening Cytokine Release Syndrome
Table 1
Schedule of Activities for Tocilizumab Treatment of Severe or 
Life-Threatening Cytokine Release Syndrome for First Dose
Assessment/Procedure a
Pre-
Tocilizumab 
Treatment 
(within 
24 hours prior)
Tocilizumab 
Administration
Post-Tocilizumab Treatmentb
0.25 
hours
6 
hours
1 
day
2 
days
3 
days
8 
days
EOTV 
or 
EDV
Tocilizumab administration 
(8 mg/kg for participants at 
or above 30-kg weight; 
12 mg/kg for participants 
less than 30-kg weight; 
doses exceeding 800 mg 
per infusion are not 
recommended)
X
Vital signs c
x d
Measure at least every 
6 hours until resolution to 
baseline, then every 
12 hours until end of 
hospitalization d
Pressor documentation e
x d
Record at least every 
6 hours until pressors are 
discontinued d
FiO2
x d
Record at least every 
6 hours until participant on 
room air d
Pulse oximetry, resting
x d
Measure at least every 6 
hours until resolution to 
baseline, then every 
12 hours until end of 
hospitalization d
Local Laboratory Assessments
Hematology f
x
x
x
x
x
x
Serum chemistry g
x
x
x
x
x
x
Coagulation (INR, PT, aPTT 
and fibrinogen)
x
x
x
x
x
x
Infection workup h
x
Central Laboratory Assessments
Serum IL-6 PD markers i
x
x
x
x
x
x
x
Serum tocilizumab 
pharmacokinetics
x
x
x
x
x
x
x
Tocilizumab ADA
x
x


RO7119929—F. Hoffmann-La Roche Ltd
163/Protocol WP41377, Version 3
ADA=Anti-drug antibodies; aPTTActivated partial thromboplastin time; BUN=blood urea nitrogen;
CRPC-reactive protein; CRSCytokine release syndrome; eCRFElectronic Case Report Form; 
EDV=Early Discontinuation Visit of study drug (RO7119929); EOTV=End of Treatment Visit of study drug 
(RO7119929); INRInternational normalized ratio; IL-6interleukin 6; LDHLactate dehydrogenase; 
PDPharmacodynamic; PKPharmacokinetic; PTProthrombin time.
Record abnormalities or worsened clinically significant abnormalities on the Adverse Event eCRF. 
a
Assessments/procedures in this schedule of assessments may be waived by the Medical Monitor if the 
participant is hospitalized at a facility that does not have the capacity to perform study assessments. 
Hospitalization should not be prolonged to perform study assessments in this schedule of assessments. 
b
Blood draws for serum tocilizumab PK and serum IL-6 PD markers will be performed postend of 
tocilizumab infusion, and will be drawn from the arm which was not used to administer tocilizumab. For 
post-tocilizumab time points: 0.25 hours, 6 hours, 1 day, 2 days, 3 days and 8 days indicate within 
0.25 hours (up to 1 hour), 6 hours 30 minutes, 24 4 hours, 48 4 hours, 72 4 hours and 
192 4 hours after completion of tocilizumab infusion.
c
Includes respiratory rate, heart rate, temperature, oxygen saturation, and systolic and diastolic blood 
pressure while the participant is in a seated or supine position, and temperature.
d
The maximum and minimum values for any 24-hour period should be recorded in the clinical database. 
e
Document vasopressor type and dose in the concomitant medication eCRF if applicable.
f
Complete blood count including RBC count, hemoglobin, hematocrit, WBC count with differential 
(neutrophils, eosinophils, lymphocytes, monocytes, basophils, and other cells), and platelet count.
g
Includes total and direct bilirubin, AST, ALT, ALP, and lipase. LDH, BUN or urea, creatinine, CRP, 
calcium, phosphate, glucose, sodium, potassium, bicarbonate, chloride, and serum ferritin. 
h
Includes assessment for bacterial, fungal, and viral infections.
i
Includes IL-6 and soluble IL-6R.


RO7119929—F. Hoffmann-La Roche Ltd
164/Protocol WP41377, Version 3
Table 2
Schedule of Activities for Tocilizumab Treatment of Severe or 
Life-Threatening Cytokine Release Syndrome for 2nd, 3rd or 4th dose
Assessment/Procedure a
Pre-Tocilizumab 
Treatment 
(within 24 hours 
prior)
Tocilizumab 
Administration
Post-Tocilizumab Treatmentb
0.25 hours 1 day
End of 
hospitalization
Tocilizumab administration 
(8 mg/kg for participants at or 
above 30-kg weight; 12 mg/kg for 
participants less than 30-kg 
weight; doses exceeding 800 mg 
per infusion are not 
recommended)
x
Vital signs c
x d
Measure at least every 6 hours 
until resolution to baseline, 
then every 12 hours until end 
of hospitalization d
Pressor documentation e
x d
Record at least every 6 hours 
until pressors are discontinued 
d
FiO2
x d
Record at least every 6 hours 
until participant on room air d
Pulse oximetry, resting
x d
Measure at least every 6 hours 
until resolution to baseline, 
then every 12 hours until end 
of hospitalization d
Local Laboratory Assessments
Hematology f
x
x
Serum chemistry g
x
x
Coagulation (INR, PT, aPTT and 
fibrinogen)
x
x
Infection workup h
x
Central Laboratory Assessments
Serum IL-6 PD markers i
x
x
x
Serum tocilizumab 
pharmacokinetics
x
x
x
aPTTActivated partial thromboplastin time; BUN=blood urea nitrogen; CRPC-reactive protein;
eCRFElectronic Case Report Form; INRInternational normalized ratio; IL-6interleukin 6; LDHLactate 
dehydrogenase; PDPharmacodynamic; PKPharmacokinetic; PTProthrombin time.
Record abnormalities or worsened clinically significant abnormalities on the Adverse Event eCRF. 
a
Assessments/procedures in this schedule of assessments may be waived by the Medical Monitor if the 
participant is hospitalized at a facility that does not have the capacity to perform study assessments. 
Hospitalization should not be prolonged to perform study assessments in this schedule of assessments. 
b
Blood draws for serum tocilizumab PK and serum IL-6 PD markers will be performed postend of 
tocilizumab infusion, and will be drawn from the arm which was not used to administer tocilizumab. For 
post-tocilizumab time points: 0.25 hours and 1 day indicate within 0.25 hours (up to 1 hour) and 24 4 
hours after completion of tocilizumab infusion.
c
Includes respiratory rate, heart rate, temperature, oxygen saturation, and systolic and diastolic blood 
pressure while the participant is in a seated or supine position, and temperature.
d
The maximum and minimum values for any 24-hour period should be recorded in the clinical database. 


RO7119929—F. Hoffmann-La Roche Ltd
165/Protocol WP41377, Version 3
e
Document vasopressor type and dose in the concomitant medication eCRF if applicable.
f
Complete blood count including RBC count, hemoglobin, hematocrit, WBC count with differential 
(neutrophils, eosinophils, lymphocytes, monocytes, basophils, and other cells), and platelet count.
g
Includes total and direct bilirubin, AST, ALT, ALP, and lipase. LDH, BUN or urea, creatinine, CRP, 
calcium, phosphate, glucose, sodium, potassium, bicarbonate, chloride, and serum ferritin. 
h
Includes assessment for bacterial, fungal, and viral infections.
i
Includes IL-6 and soluble IL-6R.


RO7119929—F. Hoffmann-La Roche Ltd
166/Protocol WP41377, Version 3
Appendix 14
Prognostic Scores for Life Expectancy
Prognostic scores for life expectancy are presented in Table 1.
Low risk: 0-1; high risk: 2-3.
Table 1
Prognostic Scores for Life Expectancy
Royal Marsden Hospital Score a
Gustave Roussy Immune Score b
Variable
Score
Variable
Score
LDH
LDH
ULN
0
ULN
0
ULN
1
ULN
1
Albumin, g/L
Albumin, g/L
35
0
35
0
35
1
35
1
Sites of metastasis
NLR
0-2
0
6
0
2
1
6
1
LDHLactate dehydrogenase; NLRNeutrophil-to-lymphocite ratio; ULNUpper limit of normal.
a Arkenau HT, Barriuso J, Olmos D, et al. Prospective validation of a prognostic score to improve 
patient selection for oncology phase I trials. J Clin Oncol. 2009;27:2692-96.
b Bigot et al. Prospective validation of a prognostic score for patients in immunotherapy phase I 
trials: the Gustave Roussy Immune Score (GRIm-Score). Eur J Cancer. 2017;84:212-18.