A Phase II Trial of the Effect of Perindopril on HFSR Incidence and Severity in Patients Receiving Regorafenib With Refractory Metastatic Colorectal Carcinoma (mCRC)
Phase: PHASE2
Conditions: Metastatic Colorectal Cancer
Sponsor: British Columbia Cancer Agency

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A Phase II Trial of the Effect of Perindopril on HFSR Incidence and 
Severity in Patients Receiving Regorafenib with Refractory Metastatic 
Colorectal Carcinoma (mCRC) 
Short title: 
Phase II Study of Perindopril and Regorafenib in mCRC (PARICCA) 
  
Test drugs: COVERSYL® (perindopril erbumine) and Stivarga ® (regorafenib) or “regorafenib” 
Study purpose: Efficacy and Safety 
 
Clinical study phase: II  
 
Date: 08 February 2017 
 
 
 
 
 
Version 2.2 
ClinicalTrials.gov ID: NCT02651415  
 
 
Study no.: 17750 
 
Sponsor (PI) and contact persons 
Dr. Barbara Melosky, Dr. Daniel Renouf 
Medical Oncologists 
BC Cancer Agency – Vancouver Cancer Centre 
600 West 10th Avenue 
Vancouver, BC V5Z 4E6  
Sponsor: BC Cancer Agency 
 
 
The study will be conducted in compliance with the protocol, ICH-GCP and any applicable 
regulatory requirements. 
 
Confidential 
The information provided in this document is strictly confidential and is intended solely for the 
guidance of the clinical investigation. Reproduction or disclosure of this document - whether in 
part or in full - to parties not associated with the clinical investigation, or its use for any other 
purpose, without the prior written consent of the sponsor is not permitted. 
 
 
 

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Signature of Investigators 
  
 
The signatory agrees to the content of the final clinical study protocol as presented. 
 
 
 
Name: Barbara Melosky, MD 
 
Date:  
 
Signature: 
Name: Daniel Renouf, MD 
 
Date:  
 
Signature: 
 
 
 

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Synopsis 
Title  
 
A Phase II Trial of the effect of Perindopril on HFSR incidence and 
severity in patients receiving Regorafenib with Refractory Metastatic 
Colorectal Carcinoma (mCRC) 
Short Title  
Phase II Study of Perindopril and Regorafenib in mCRC 
Clinical study phase  
Phase II 
Study Objectives 
Primary Objective:  
To assess the incidence of all grade toxicities for HFSR defined by 
CTCAE v4.03 criteria.  
 
Secondary Study Objective(s); 
 Incidence of (all grade): 
o hypertension  
o toxicity  
 Maximal severity of HFSR 
 Time course to development of worst grade (stage 3) HFSR 
 Progression-free survival 
Test drugs 
COVERSYL® (perindopril erbumine) or “perindopril” 
Stivarga ® (regorafenib) or “regorafenib” 
Dose of 
administration  
COVERSYL® (perindopril erbumine) 4 mg will be administered daily for 
21 days of a 28-day cycle. Perindopril will be administered orally, first 
thing in the morning on an empty stomach. 
Regorafenib will be administered 160 mg daily for 21 days of a 28-day 
cycle. Regorafenib will be administered with low fat breakfast, one 
hour after perindopril. A low fat breakfast as defined by the 
Regorafenib monograph is one that is <30% fat, ~300-550 calories. 
Route of 
administration 
Both medications will be administered orally 
Duration of 
treatment 
The study will be discontinued if 5 of the first 10 patients exhibit a 
Grade 3 or higher HFSR. Note that in the CORRECT trial, 47% of 
patients experienced HFSR of all grades with 17% experiencing HFSR 
with grade 3 severity.   
 
Patients will remain on trial and will receive regorafenib and 
perindopril until radiological disease progression, based on RECIST 
v1.1 criteria. If patients progress on regorafenib, both drugs will be 
stopped. However, after the patient progresses (i.e. is no longer on 
trial) the medication can be continued if the investigator feels that 
there is a clinical benefit. 
Other reasons for patients to discontinue therapy include: death; 
patient withdraws consent; treating physician determines 

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discontinuation of treatment is in the patient’s best interest; 
substantial non-compliance with the protocol. 
Indication  
Patients with metastatic colorectal carcinoma (mCRC) who have 
progressed on/ after, or are intolerant to all approved drugs* for CRC 
and are eligible for regorafenib will be included in this trial.  
*fluoropyrimidine-based chemotherapy, oxaliplatin, irinotecan, an 
anti-vascular endothelial growth factor (anti-VEGF) therapy, and, if 
RAS wild type, an anti-epidermal growth factor receptor (anti-EGFR) 
therapy. 
Diagnosis and main 
criteria for inclusion  
Patients with metastatic colorectal cancer (mCRC) who have 
progressed on/after, or are intolerant to all approved drugs for CRC 
and are eligible for regorafenib.  
In order to be eligible, all inclusion criteria must be met.  
A patient must: 
 Understand, be willing to give consent, and sign a written 
informed consent form prior to undergoing any study-specific 
procedure 
 Be male or female and ≥ 18 years of age  
 Histological or cytological documentation of adenocarcinoma of 
the colon or rectum.  
 Patients with metastatic colorectal cancer (Stage IV) previously 
treated with fluoropyrimidine-based chemotherapy, oxaliplatin, 
irinotecan, an anti-VEGF therapy, and, if KRAS wild type, an anti-
EGFR therapy. 
 Progression during or within 3 months following the last 
administration of approved standard therapies, or have 
experienced intolerance to previous therapy.  
 Metastatic CRC patients with measurable or non-measurable 
disease  
 Life expectancy of at least 3 months 
 Have an Eastern Cooperative Oncology Group performance status 
of 0 or 1 (within 14 days prior to the initiation of study treatment) 
 Have adequate bone marrow, liver function, and renal function as 
measured by the following laboratory assessments conducted 
within 7 days prior to the initiation of study treatment: 
 Total bilirubin < 1.5 times the upper limit of normal (ULN) 
o Alanine aminotransferase (ALT) and aspartate 

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aminotransferase (AST) < 2.5 times the ULN  (< times ULN 
for patients with liver involvement of their cancer) 
o Lipase < 1.5 times the ULN 
o Serum creatinine < 1.5 times the ULN 
o Glomerular filtration rate > 30 mL/min/1.73 m2 according 
to the modified diet in renal disease abbreviated formula  
o International normalized ratio (INR) of prothrombin time 
(PT; PT-INR) and partial thromboplastin time (PTT) < 1.5 
times the ULN 
o Platelet count > 100000 /mm3, hemoglobin > 9 g/dL, 
absolute neutrophil count > 1500/mm3. 
o Alkaline phosphatase limit ≤ 2.5 times the ULN (< times 
ULN for patients with liver involvement of their cancer) 
 If female and of childbearing potential, have a NEGATIVE result on 
a pregnancy test performed a maximum of 7 days before initiation 
of study treatment.  
 If female and of childbearing potential or if male, must agree to 
use adequate contraception (e.g., abstinence, intrauterine device, 
oral contraceptive, or double-barrier method) based on the 
judgment of the investigator or a designated associate from the 
date on which the ICF is signed until 6 months after the last dose 
of study drug. 
Exclusion Criteria 
Exclusion Criteria 
Patients who meet the following criteria at the time of screening will 
be excluded: 
 Patients with hypotension (less than 90/60mm Hg) or at risk of 
symptomatic hypotension (fainting or dizziness) will be excluded.  
 Prior treatment with regorafenib or any VEGFR-targeting kinase 
inhibitor. 
 Previous assignment to treatment during this study. Patients 
permanently withdrawn from study participation will not be 
allowed to re-enter the study. 
 Concurrent cancer requiring treatment that is distinct in primary 
site or histology from colorectal cancer. 
 Major surgical procedure, open biopsy, or significant traumatic 
injury within 28 days before start of study medication. 
 Unstable/uncontrolled cardiac disease including: congestive 
heart failure > New York Heart Association (NYHA) class 2; 
unstable angina (angina symptoms at rest), new-onset angina 

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(begun within the last 3 months); myocardial infarction less than 6 
months before start of study drug; cardiac arrhythmias requiring 
anti-arrhythmic therapy (beta blockers or digoxin are permitted). 
 Uncontrolled hypertension. (Systolic blood pressure > 150 mmHg 
or diastolic pressure > 90 mmHg despite optimal medical 
management). 
 Patients with phaeochromocytoma. 
 Arterial or venous thrombotic or embolic events such as 
cerebrovascular accident (including transient ischemic attacks), 
deep vein thrombosis or pulmonary embolism within the 6 months 
before start of study medication. 
 Ongoing infection > grade 2 NCI-CTCAE version 4.03 
 Known history of human immunodeficiency virus (HIV) infection. 
 Known history of chronic hepatitis B or C. 
 Patients with seizure disorder requiring medication. 
 Symptomatic metastatic brain or meningeal tumors unless the 
patient is > 6 months from definitive therapy, has a negative 
imaging study within 4 weeks of study entry and is clinically stable 
with respect to the tumor at the time of study entry. Also the 
patient must not be undergoing acute steroid therapy or taper 
(chronic steroid therapy is acceptable provided that the dose is 
stable for one month prior to and following screening radiographic 
studies) 
 History of organ allograft 
 Patients with evidence or history of bleeding diasthesis, including 
patients who have had a transfusion and/or radiographic 
endoscopic or elective operative interaction to control the 
bleeding or hemorrhage event within four weeks prior to the 
study 
 Non-healing wound, ulcer, or bone fracture. 
 Renal impairment or failure requiring hemo-or peritoneal dialysis. 
 Patients with severe hepatic impairment.  
 Dehydration NCI-CTC version 4.03 grade > 1. 
 Substance abuse, medical, psychological or social conditions that 
may interfere with the patient’s participation in the study or 
evaluation of the study results 
 Any illness or medical conditions that are unstable or could 
jeopardize the safety of the study 
 Interstitial lung disease with ongoing signs and symptoms at the 
time of informed consent. 
 Persistent proteinuria of CTC Grade 3 or higher. Quantification of 

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proteinuria done by urinary protein/creatinine ratio on a random 
urine sample preferably taken at mid-morning. If 
protein/creatinine ratio is greater than 30g/mol Creat, then a 24-
hour urine protein test should be performed to confirm Grade 3 or 
higher proteinuria (> 3.5 g/24 hours). 
 Patients unable to swallow oral medications 
 Any malabsorption condition 
 Unresolved toxicity higher than NCI-CTCAE (version 4.03) Grade 1 
attributed to any prior therapy/procedure excluding alopecia and 
oxaliplatin induced neurotoxicity ≤Grade 2 
 Patients who are hypersensitive to perindopril, as well as those 
hypersensitive to regorafenib, sorafenib, drugs in the same class 
or any ingredient in the formulation. 
 Patients who cannot tolerate the full dose of perindopril (4 mg) for 
any reason. 
 Patients receiving systemic anticancer therapy including cytotoxic 
therapy, signal transduction inhibitors, immunotherapy, hormonal 
therapy and experimental or approved therapies during this trial 
or within 14 days before starting to receive study medication. 
In addition, patients will be excluded for the following reasons (From 
perindopril monograph). 
 Patients with a history of hereditary/idiopathic angioedema, or 
angioedema related to previous treatment with an angiotensin 
converting enzyme inhibitor. 
 Pregnant women or those planning to become pregnant, nursing 
women.  
 Patients with hereditary problems of galactose intolerance, 
glucose-galactose malabsorption, or the Lapp lactase deficiency. 
 Patients with pre-existing anti-hypertension treatment with an 
ACE inhibitor or angiotensin receptor blocker (ARB) are to be 
excluded. Co-administration of ACE inhibitors, including 
COVERSYL®, with other agents blocking the Renin-Angiotensin 
System (RAS), such as ARBs or aliskiren-containing drugs, will not 
be allowed, since such treatment has been associated with an 
increased incidence of severe hypotension, renal failure, and 
hyperkalemia. 
Study Design  
Phase II, open-label, single-arm trial of patients with refractory mCRC 
treated with regorafenib (160 mg/day) and perindopril (4 mg/day). 

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There will be no stratification in this study.  
Methodology  
This trial will measure the incidence and severity of HFSR and 
hypertension in patients receiving both perindopril and regorafenib 
using the CTCAE v4.03 criteria.  
 
The incidence of HFSR will be expressed as the number of patients out 
of study (N=34) who are experiencing HFSR of all grades. The 
incidence of hypertension will be expressed as the number of patients 
on study (N=34) who are experiencing hypertension of all grades. 
Severity will be evaluated using CTCAE v4.03 criteria as the secondary 
endpoint.  
Type of control  
This is not a randomized study. All patients in the study will receive 
perindopril. 
Number of subjects  
34 subjects, single-arm trial. A total of 38 will be recruited to allow for 
screen failure 
Primary endpoint  
To assess the incidence of all grade toxicities for HFSR.  
 
Secondary 
endpoints 
Secondary Outcomes  
 Hypertension: All grades of hypertension will be evaluated using 
CTCAE v4.03, weekly for the first six weeks while they are on the 
study drug, then every second week and during the 30-day follow 
up period (Post therapy).  
 Toxicity: all grades of AE (including HFSR) will be evaluated using 
CTCAE v4.03, at baseline and at D1 of each cycle while they are on 
the study drug and during the 30-day follow up period (Post 
therapy).  
 Time course to development of worst grade (stage 3) HFSR. 
 PFS will be evaluated based on RECIST v1.1 criteria. 
 
Plan for statistical 
analysis  
Statistical & Analytical Plan and Methodology  
 
General considerations 
Statistical analyses will be performed using SAS 9.3. Demographic and 
other baseline characteristics will be listed and summarized. 
Qualitative data will be summarized using frequencies and 
percentages and quantitative data will be summarized by appropriate 
descriptive statistics (mean, standard deviation, median, minimum 
and maximum). Secondary safety variables will be summarized using 
descriptive statistics and exploratory graphical presentations of the 
data.  
Duration of study treatment exposure, cumulative dose and dose 

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intensity will be summarized. The number of patients with dose 
changes/interruptions and withdrawals will be presented along with 
reasons for the dose change. 
Variables related to tumor response and disease progression will be 
evaluated based on investigator assessed RECIST criteria, version 1.1. 
In cases where radiographic imaging is not possible, clinical 
progression may be used. Clinical progression is based on the 
judgment of the investigator. 
Toxicity related variables will be evaluated using the CTCAE v4.03 
criteria. 
Biomarker and pharmacokinetics will not be performed in this study 
and no subgroup analysis will be performed. 
 
Analysis sets 
The primary analysis set will consist of all evaluable patients. An 
evaluable patient is defined as a patient who meets all 
inclusion/exclusion and who has received at least one dose of study 
medication. The safety set will consist of all patients who receive at 
least one dose of study medication. 
 
Primary Objectives 
The primary objective is to determine the proportion of patients that 
have any grade HFSR toxicity when treated with a combination of 
regorafenib and perindopril. 
 
Secondary Objectives 
The secondary objectives are to evaluate the time to development of 
worst (grade 3) HFSR toxicity, proportion of all grades of hypertension, 
proportion of all grade toxicities and progression-free survival. All 
toxicities will be evaluated using CTCAE v4.03.  
Sample Size  
The alpha level is 0.05 and the power is 80% for the sample size 
calculation.  A total of 34 evaluable patients be needed. 38 patients 
will be recruited to account for inevaluable patients. The primary 
endpoint is a 50% reduction in all grades of HFSR based on CTCAE 
v4.03 criteria (from 47% of patients with any grade of HFSR down to 
24% of patients). 
 
 

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CONTENTS 
 
Synopsis ........................................................................................................................................................ 3 
CONTENTS ................................................................................................................................................... 10 
List of abbreviations ...................................................................................................................... 13 
1.0 
Introduction .................................................................................................................................... 16 
1.1 
Background ........................................................................................................................ 16 
1.2 
Overview of regorafenib .................................................................................................... 16 
1.3. Overview of perindopril ......................................................................................................... 17 
1.4 Hand foot skin reaction, .......................................................................................................... 18 
1.5 Rationale for Use in Colorectal Cancer ................................................................................... 18 
1.6 Clinical experience with Regorafenib ..................................................................................... 19 
2. Study objectives ...................................................................................................................................... 19 
2.1 Primary outcome .................................................................................................................... 19 
2.2 Secondary outcomes ............................................................................................................... 19 
3. Investigators and other study participants ............................................................................................. 20 
3.1 Data Monitoring Committee ................................................................................................... 20 
3.2 
Clinical Trials Nurse Coordinator (CTNC) ........................................................................... 20 
3.3 
Clinical Trials Data Coordinator (CTDC) ............................................................................. 20 
3.4.1 
Biostatistician ................................................................................................................. 21 
3.5  
Location of laboratory and imaging facilities .................................................................... 21 
4. Study design ............................................................................................................................................ 21 
5. Study population ..................................................................................................................................... 23 
5.1 Eligibility .................................................................................................................................. 23 
5.1.1 Inclusion criteria ......................................................................................................................... 23 
5.1.2 Exclusion criteria ........................................................................................................................ 24 
5.1.3 Justification of selection criteria ................................................................................................ 26 
5.2 Withdrawal of subjects from study ........................................................................................ 27 
5.2.1 Withdrawal of subjects from study treatment .......................................................................... 27 

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5.2.2 Withdrawal of subjects from the follow-up period ................................................................... 29 
5.2.3 Replacement .............................................................................................................................. 29 
5.3 Subject identification .............................................................................................................. 29 
6. Treatments .............................................................................................................................................. 29 
6.1 Treatments to be administered .............................................................................................. 29 
6.2 Identity of study treatment .................................................................................................... 30 
6.3 Treatment assignment ............................................................................................................ 30 
6.4 Dosage and administration ..................................................................................................... 31 
6.4.1 
Perindopril ........................................................................................................................... 31 
6.4.2 
Regorafenib ......................................................................................................................... 31 
6.5 Blinding ................................................................................................................................... 39 
6.6 Drug logistics and accountability ............................................................................................ 39 
6.7 Treatment compliance ............................................................................................................ 39 
6.8 Post-study therapy .................................................................................................................. 39 
6.9 Prior and concomitant therapy ............................................................................................... 40 
7. Procedures and variables ........................................................................................................................ 43 
7.1 Schedule of procedures .......................................................................................................... 43 
7.1.1 Tabulated overview.................................................................................................................... 44 
Table 7 ................................................................................................................................................. 44 
7.1.2 Timing of assessments ............................................................................................................... 46 
7.2 Population characteristics....................................................................................................... 52 
7.2.1 Demographic .............................................................................................................................. 52 
7.2.2 Medical history .......................................................................................................................... 52 
7.2.3 Other baseline characteristics ................................................................................................... 52 
7.3 Efficacy .................................................................................................................................... 52 
7.5 Safety ...................................................................................................................................... 53 
7.5.1 Adverse events ........................................................................................................................... 55 
7.5.2 Pregnancies ................................................................................................................................ 62 
7.5.3 Further safety ............................................................................................................................. 62 
8. Statistical methods and determination of sample size ........................................................................... 63 

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8.1 General considerations ........................................................................................................... 63 
8.2 Analysis sets ............................................................................................................................ 63 
8.3 Primary Objective.................................................................................................................... 63 
8.3.1 Primary Endpoint ....................................................................................................................... 63 
8.3.2 Statistical hypothesis and method of analysis ........................................................................... 63 
8.4 Secondary Objectives .............................................................................................................. 64 
8.5 Safety ...................................................................................................................................... 64 
8.6 Planned interim analyses ........................................................................................................ 65 
8.7 Determination of sample size ................................................................................................. 65 
9. Data handling and quality assurance ...................................................................................................... 65 
9.1 Data recording ........................................................................................................................ 65 
9.2 Monitoring .............................................................................................................................. 65 
9.3 Data processing ....................................................................................................................... 66 
9.4 Audit and inspection ............................................................................................................... 66 
9.5 Archiving ................................................................................................................................. 66 
10. Premature termination of the study ..................................................................................................... 67 
11. Ethical and legal aspects ....................................................................................................................... 69 
11.1 Ethical and legal conduct of the study .................................................................................. 69 
11.2 Subject information and consent ......................................................................................... 69 
11.3 Publication policy .................................................................................................................. 70 
11.4 Compensation for health damage of subjects / insurance ................................................... 71 
11.5 Confidentiality ....................................................................................................................... 71 
12. Reference list ........................................................................................................................................ 73 
13. Protocol amendments .......................................................................................................................... 75 
14. Appendices ............................................................................................................................................ 76 
14.1 RECIST ................................................................................................................................... 77 
14.2 NCI Common Terminology Criteria for Adverse Events ....................................................... 81 
14.3 New York Heart Association Functional Classification ......................................................... 82 
14.4 Examples of a low fat breakfast ............................................................................................ 83 
14.5 Glomerular Filtration Rate (GFR) .......................................................................................... 84 

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14.6 ECOG ..................................................................................................................................... 85 
14.7 Overview of STRONG CYP3A4 inducers ................................................................................ 86 
14.8 Overview of STRONG CYP3A4 inhibitors .............................................................................. 87 
 
List of abbreviations 
ACE 
 
Angiotensin converting enzyme 
AE  
 
Adverse Event 
ALT  
 
Alanine amino-transferase 
ANC   
Absolute neutrophil count 
ARB 
 
Angiotensin receptor blocker 
AST  
 
Aspartate amino-transferase 
AUC   
Area under the curve 
BCCA  
BC Cancer Agency 
BP  
 
Blood pressure 
BSC  
 
Best supportive care 
BUN   
Blood urea nitrogen 
CBC  
 
Complete blood count 
CEA  
 
Carcinoembryonic antigen 
CNS  
 
Central nervous system 
CR  
 
Complete response 
CRC  
 
Colorectal cancer 
CRF  
 
Case Report Form (either paper or electronic) 
CT  
 
Computed tomography 
CYP  
 
Cytochrome P450 
CTC(AE)  
Common Terminology Criteria (for AEs) 
dl  
 
deciliter 
EC  
 
Ethical Committee 
ECG  
 
Electrocardiogram 
ECOG   
Eastern Cooperative Oncology Group 
EOT 
 
End of Trial 
e.g.  
 
Exempli gratia, for example 
EGFR   
Epidermal growth factor receptor 
ERK  
 
Extracellular-signal-related kinase 
FGFR   
Fibroblast growth factor receptor 
FMD 
 
Flow mediated dilation 
FDA  
 
Food and Drug Administration 
GCP  
 
Good Clinical Practice 
G-CSF   
Granulocyte-colony stimulating factor 
GFR  
 
Glomerular Filtration Rate 

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GMP   
Good Manufacturing Practice 
Hb  
 
Hemoglobin 
HIV  
 
Human immunodeficiency virus 
HR  
 
Hazard ratio 
HRQoL  
Health-related Quality of Life 
ICH  
 
International Conference on Harmonization 
i.e.  
 
Id est, that is 
IMP  
 
Investigational medicinal product 
INR  
 
International normalized ratio 
IRB  
 
Institutional Review Board 
kg  
 
Kilogram 
KM  
 
Kaplan-Meier 
LD  
 
Longest diameter 
LDH  
 
Lactic dehydrogenase 
LVEF   
Left ventricular ejection fraction 
MAPK   
Mitogen-activated protein kinase 
MEK   
MAPK/ERK kinase 
mg  
 
Milligram 
MI  
 
Myocardial infarction 
mL  
 
Milliliter 
mm  
 
Millimeter 
MRI  
 
Magnetic resonance imaging 
MUGA  
Multi Gated Acquisition Scan 
N/A 
 
Not applicable 
NCCN   
National Comprehensive Cancer Network 
NCI  
 
National Cancer Institute 
NO 
 
Nitrous Oxide 
NYHA   
New York Heart Association 
od  
 
Once a day 
OM  
 
Operational manual 
OS  
 
Overall survival 
PD  
 
Progressive Disease 
PDGF   
Platelet derived growth factor 
PDGFR  
Platelet derived growth factor receptor 
PFS  
 
Progression-free survival 
po  
 
Per os (oral) 
PR  
 
Partial response 
PRO  
 
Patient Reported Outcome 
PS  
 
Performance Status 
PT  
 
Prothrombin time 
PTT  
 
Partial thromboplastin time 
qd  
 
Every day 

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RBC  
 
Red blood cell (count) 
RECIST  
Response Evaluation Criteria in Solid Tumors 
RT  
 
Radiotherapy 
SAE  
 
Serious Adverse Event 
SD  
 
Stable disease 
SOP  
 
Standard operating procedure 
SUSARs  
Suspected, unexpected, serious adverse reactions 
TIA  
 
Transient ischemic attack 
TTP  
 
Time to progression 
ULN  
 
Upper limit of normal 
UPCR  
Urinary protein/creatinine ratio 
VEGF   
Vascular endothelial growth factor 
VEGFR  
Vascular endothelial growth factor receptor 
vs  
 
Versus 
WBC   
White blood cell (count) 
 
 

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1.0 Introduction 
 
1.1 Background 
We hypothesize that treatment of regorafenib-treated mCRC patients with perindopril may reduce 
HFSR compared to reported incidence and severity. 
We also hypothesize that treatment of regorafenib-treated mCRC patients with perindopril will likely 
reduce hypertension, a known adverse effect of VEGF/VEGFR inhibition.  
 
According to the 2014 Canadian Cancer Statistics, colorectal cancer is the second most 
frequently diagnosed cancer in Canadian males and the third most frequently diagnosed cancer 
in Canadian females, accounting for 13.9% and 11.6% of new diagnoses, respectively. Although 
mortality rates are declining very slightly, colorectal cancer is the second most frequent cause 
of cancer deaths in males and the third most frequent cause of cancer death in females, at 
12.8% and 11.5% respectively.  
 
Metastatic colorectal cancers are generally not curable. Median overall survival for patients 
with unresectable mCRC who receive best supportive care (BSC) is five to six months. Palliative 
treatment with systemic chemotherapy is the best option prolonging survival and maintaining 
quality of life. Patients who are exposed to all active drugs can sometimes extend survival past 
two years.  
 
For many years 5 Fluorouracil (FU) was the only treatment, but the approval of irinotecan, 
oxaliplatin, fluoropyrimidines, as well as various monoclonal antibodies targeting VEGF and 
EGFR growth factors led to the development of a number of different regimens. The ideal 
combination and sequence of the different agents is still not determined.  
 
Recently, Regorafenib has shown efficacy in patients pretreated with all these options in a large 
phase III trial, where it prolonged OS compared with placebo (Grothey, et al 2013). In addition, 
the results were confirmed in a smaller randomised trial in the Asian population, with patients 
being less intensively pre-treated (Li et al, 2014). Therefore, regorafenib is now considered a 
standard option in pre-treated patients. 
 
1.2 Overview of regorafenib 
Regorafenib is a multi-kinase inhibitor (MKI), belonging to a unique class of orally-administered 
small molecule therapeutics targeting multiple protein kinases, including kinases involved in 
tumour angiogenesis (VEGFR1, -2, -3, TIE2), oncogenesis (KIT, RET, RAF-1, BRAF, BRAFV600E), 

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and the tumour microenvironment (PDGFR, FGFR). Regorafenib was proven to be efficacious in 
mCRC in patients who are refractory to standard therapy in the CORRECT trial (Grothey et al, 
2013). The endpoint of overall survival was met in this pivotal Phase III trial; however the most 
common grade three adverse event (AE) reported was Hand Foot Skin Reaction (HFSR). 47% of 
patients experienced HFSR of all grades with 17% experiencing HFSR with grade three severity. 
26% of patients in the CORRECT trial experienced rash/desquamation, with 6% reporting the 
side effect as severe. In addition, 28% of patients in the CORRECT trial experienced 
hypertension, with 7% reporting severe hypertension.  
The subsequent CONCUR trial was designed to evaluate the efficacy and safety of regorafenib 
in a broader population of Asian patients with mCRC (Li et al, 2014). The multicenter study was 
conducted in 25 centres in mainland China, Hong Kong, South Korea, Taiwan and Vietnam. The 
study met its primary endpoint of overall survival, 8.8 months on regorafenib as compared to 
6.3 months with placebo (HR 0.550, 95% CI [0.395 ‒ 0.765], P= 0.0002 (1-sided). Again, in this 
trial HFSR was the most common grade 3 adverse event. Results of this trial were consistent 
with CORRECT. Although 74.3% of patients experienced any grade of HRSF, 16.2% experienced 
grade 3. Other AEs of note in the CONCUR trial included an increase in blood bilirubin (48.5% 
increase in all grades, 7.4% increase in grade 3), ALT increased (31.6% all grades, 8.1% grade 3) 
and an increase in hypertension (25% increase in all grades, 11.8% increase in grade 3).  
The pathogenesis of regorafenib-induced HFSR is not yet established; however the capillary 
endothelium is felt to be the first target in HFSR. Abnormal signaling interruption of the VEGF 
and PDGF receptors may lead to alteration of small vessels (Erber R et al. 2004) which are 
traumatized by frequent impacts or pressure requiring endothelial repair (Robert C et al. 2005). 
An inflammatory response has also been hypothesized (Robert C et al. 2005). 
1.3. Overview of perindopril  
Perindopril is an Angiotensin Converting Enzyme (ACE) Inhibitor indicated for the treatment of 
hypertension, congestive heart failure and for the treatment of hypertensive and/or post-MI 
patients with stable coronary artery disease (COVERSYL® Product Monograph). ACE inhibitors 
protect the vascular endothelium, by decreasing the concentration of angiotensin II, which 
inhibits NO production and activity, while increasing the concentrations of bradykinin, a 
vasodilator and stimulator of NO (Taddei S. 2012). _ENREF_1Interestingly, different ACE 
inhibitors have demonstrated differing abilities to improve vascular endothelial function as 
demonstrated through flow-mediated vasodilation (FMD) (Anderson TJ, et al. 2000), with 
perindopril being most effective (Taddei S. 2012). _ENREF_1_ENREF_1_ENREF_1 As a vessel 
dilator, perindopril may be beneficial in preventing or reducing the severity of regorafenib-
induced HFSR, possibly by helping to restore the normal balance between angiotensin II and 
bradykinin, and reducing inflammation (TNF-a) to reverse endothelial dysfunction (Taddei S. 
2012; Ceconi C, et al. 2007a; Ceconi C 2007b; Zhuo JL, et al. 2002).  

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1.4 Hand foot skin reaction,  
Hand foot skin reaction (HFSR), also called palmar-plantar erythrodysesthesia, is a common side 
effect of many new targeted therapies (Miller KK et al., 2014).  
HFSR associated with kinase inhibitor therapy differs in important ways from the classic hand-
foot syndrome (HFS) seen with traditional cytotoxic agents such as 5-fluorouracil, capecitabine, 
doxorubicin, or liposomal doxorubicin. Initial symptoms of HFSR mediated by kinase inhibitor 
therapies may manifest with early signs of tingling or subtle discomfort, even after only 5–7 
days on therapy (Grothey et al. 2014). These symptoms may progress in some patients to 
worsening pain, tenderness, callus formation, redness, and edema (occasionally associated with 
a burning sensation) in the palms of the hands or soles of the feet and especially in the folds 
between joints or pressure points of the feet. Other areas that may be involved include the tips 
of the fingers and toes, heels, and areas of flexure or overlying skin. These pressure areas are 
where most severe symptoms are typically seen, with formation of blisters that can severely 
impair the ability to walk. These blisters can burst and discharge serous fluid, although, 
commonly, thick callus formation may occur. Signs and symptoms may appear concomitantly or 
sequentially, and can affect both hands and both feet (Grothey et al. 2014). 
HFSR can significantly impact the quality of life, requiring dose reductions or modifications. All 
patients in this trial will have experience with previous chemotherapy regimens and may have 
previous experience with hand-foot syndrome (HFS). 
Previous experience with HFS will be collected as per patient recollection only (no chart 
review). This will be used to determine (as an exploratory analysis only) if this influences the 
rate and severity of HFSR in this study.   
1.5 Rationale for Use in Colorectal Cancer  
The intended outcome of successfully and significantly mitigating regorafenib-induced HFSR is 
that patients will be able to stay on the regorafenib for a longer period to increase efficacy. The 
hypothesis underlying this trial is that the co-administration of perindopril with regorafenib will 
mitigate HFSR symptoms.  
This may not be the case, and if the HFSR is more severe with the addition of perindopril than 
with regorafenib alone, the study will be discontinued.  
As a secondary endpoint, hypertension will also be followed.  
 

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1.6 Clinical experience with Regorafenib  
47% of regorafenib treated patients in the CORRECT trial experienced HFSR of all grades, while 
17% experienced grade 3 HFSR. Results of the CONCUR Trial were similar. Although 74.3% of 
patients experienced any grade of HFSR, 16.2% experienced grade 3. 
All efforts need to be made to find new therapeutic combinations to reduce HFSR, as it causes a 
significant decrease in a patient’s quality-of-life.  
Expected time on trial: In the CORRECT trial (regorafenib versus placebo) overall survival was 
6.4 vs 5.0 months (HR=0.77, p=0.0052) and PFS was 1.9 vs 1.7 months (HR=0.49, p<0.000001). 
In the CONCUR trial, (regorafenib versus placebo) overall survival was 8.8 versus 6.3 months 
(HR=0.550, 95% CI 0.395-765, p=0.0002 (I sided). PFS was 3.2 versus 1.7 months (HR=0.311, 
95% CI 0.222-0.435, p<0.0001 (1 sided)).  
Based on CONCUR, expected time patients will stay on trial is four months.  
2. Study objectives 
This trial will measure the incidence and severity of HFSR and hypertension in patients receiving 
both perindopril and regorafenib.  
The incidence of HFSR will be expressed as the number of patients out of study (N=34) who are 
experiencing HFSR of all grades. Severity will be evaluated using CTCAE v4.03 criteria. 
The incidence of hypertension will be expressed as the number of patients on study (N=34) who 
are experiencing hypertension of all grades. Severity will be evaluated using CTCAE v4.03 
criteria. 
 
2.1 Primary outcome 
Incidence of all grade toxicities for HFSR will be evaluated. 
Patients will be seen by physician every week for the first six weeks, then every two weeks after 
(see attached study schedule, APPENDIX A).  
Subjects are to be evaluated for symptoms and AEs in a visit 30 days (+7 days) after 
permanently stopping study treatment. After the last contact of the Safety Follow-Up Visit (or 
after the EOT visit if the Safety Follow-Up Visit is not available), subjects will be off study.  
   
2.2 Secondary outcomes  
 Hypertension: All grades of hypertension will be evaluated using CTCAE v4.03, weekly for 
the first six weeks while they are on the study drug, then every second week and during the 
30-day follow up period (Post therapy)(see attached study schedule, APPENDIX A).  

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 Toxicity: all grades of AE including HFSR will be evaluated using CTCAE v4.03, at baseline and 
at D1 of each cycle while they are on the study drug and during the 30-day follow up period 
(Post therapy).  
 Time course to development of worst grade (grade 3) HFSR. 
 PFS will be evaluated based on RECIST v1.1 criteria, 20% progression or any new lesion. 
3. Investigators and other study participants  
 
Study sponsors and PIs: 
Dr. Barbara Melosky, Dr. Daniel Renouf 
BC Cancer Agency – Vancouver Cancer Centre 
600 West 10th Avenue 
Vancouver, BC V5Z 4E6  
 
3.1 Data Monitoring Committee 
Not applicable – ISS.  
3.2 
Clinical Trials Nurse Coordinator (CTNC) 
Reporting to the Clinical Trials Unit Manager (VCC), Operations Cancer Care Leader (CCSI, VICC 
and FVCC), or designate, the Clinical Trials Nurse Coordinator (CTNC) receives direction from 
Principal Investigators or designates, and is professionally accountable to the Professional 
Practice Leader in Nursing.  
The CTNC participates in the coordination of clinical trials from the protocol review and 
approval stage through to activation, trial closure and follow-up.  
The CTNC has principal responsibility for the coordination of the treatment programs, nursing 
care, monitoring, clinical assessment, and education of patients participating in the assigned 
clinical trials. The CTNC has formal responsibility for advising or teaching nursing staff in clinic 
and treatment areas on specialized theory and practice related to clinical trials. 
 
3.3 
Clinical Trials Data Coordinator (CTDC)  
The Clinical Trials Data Coordinator (CTDC) receives direction from Principal Investigators or 
designates, and receives general supervision in matters related to Patient Information 
Management from the Chief Paramedical, PIM. 
The CTDC has principal responsibility for clinical trials data management, including designing 
data capture tools, capturing and recording clinical trials data, monitoring and promoting the 
quality and integrity of data, and preparing summary reports. Data management is performed 
in accordance with trial protocol, procedures, guidelines and professional standards of practice. 

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3.4.1 Biostatistician 
Reporting directly to the Principal Investigator, the biostatistician will provide statistical support 
as well as some database management support. Statistical support includes: protocol design 
and development and REB application, support in design of data collection forms, statistical 
analysis plan, statistical analysis and provision of the final statistical analysis report. Data 
Management Support includes database design and development, data dictionary, data review, 
coding and cleaning ready for analysis. 
  
3.5  
Location of laboratory and imaging facilities 
The laboratory and imaging facilities for this study are both located on the 3rd floor of the BC 
Cancer Agency at 600 West 10th Avenue. 
4. Study design  
Phase II, open-label, single-arm trial of patients with refractory mCRC treated with regorafenib 
(160 mg/day) and perindopril (4 mg/day). 
This study will be conducted at the BC Cancer Agency (Vancouver Centre) only.  
 
 
 

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During the study period, patients will undergo evaluations for safety and drug accountability 
every cycle. Drug safety will be monitored and evaluated continuously throughout the study, 
including a 30-day follow up period. Patients will continue on treatment until one of the 
following occurs (main criteria): 
o Progressive Disease as defined by Response Evaluation Criteria in Solid Tumors 
(RECIST) criteria, version 1.1, or clinical progression 
o Death 
o Unacceptable toxicity 
o Patient withdraws consent 
o Treating physician determines discontinuation of treatment is in the patient’s best 
interest 
o Substantial non-compliance with the protocol 
For the full list of criteria refer to section 5.2.1. 
 
If in the Investigator’s opinion, treatment with regorafenib is providing clinical benefit to a 
patient experiencing disease progression, the patient may continue treatment. 
 

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Justification of the design 
47% of regorafenib treated patients in the CORRECT trial experienced HFSR of all grades, while 
17% of regorafenib patients experienced grade 3 HFSR. All efforts need to be made to find new 
therapeutic combinations to reduce HFSR, as it causes a significant decrease in a patient’s 
quality-of-life.  
Although we are assuming that the co-administration of perindopril with regorafenib will 
mitigate HFSR symptoms, this may not be the case. If the HFSR is more severe with the addition 
of perindopril than with regorafenib alone, the study will be discontinued.  
The choice of dosage and schedule to be used in this trial comes from data accumulated in 
previous phase III trials with regorafenib (CORRECT, CONCUR). The choice of dosage and 
schedule for perindopril is from the Coversyl monograph.  
 
End of study 
The study will conclude with the last visit of the last patient.  
5. Study population 
5.1 Eligibility  
Patients with metastatic colorectal cancer (mCRC) who have progressed on/after all approved 
drugs for CRC and are eligible for regorafenib. Specifically, regorafenib is indicated for the 
treatment of patients with metastatic colorectal cancer (mCRC) who have been previously 
treated with fluoropyrimidine-based chemotherapy, oxaliplatin, irinotecan, an anti-VEGF 
therapy, and, if KRAS wild type, an anti-EGFR therapy (Stivarga ® (regorafenib) Product 
Monograph).  
Patients will have been tested for Ras (K- and N- mutations). 
5.1.1 Inclusion criteria 
In order to be eligible, all inclusion criteria must be met.  
A patient must: 
 Understand, be willing to give consent, and sign a written informed consent form prior to 
undergoing any study-specific procedure 
 Be male or female and ≥ 18 years of age  
 Histological or cytological documentation of adenocarcinoma of the colon or rectum.  
 Patients with metastatic colorectal cancer (Stage IV) previously treated with 
fluoropyrimidine-based chemotherapy, oxaliplatin, irinotecan, an anti-VEGF therapy, and, if 
KRAS wild type, an anti-EGFR therapy. 

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 Progression during or within 3 months following the last administration of approved 
standard therapies, or have experienced intolerance to previous therapy. Patients treated 
with oxaliplatin in an adjuvant setting should have progressed during or within 6 months of 
completion of adjuvant therapy. (Please note that in Canada patients are not re-challenged 
with oxaliplatin in the metastatic setting). 
 Metastatic CRC patients with measurable or non-measurable disease  
 Life expectancy of at least 3 months 
 Have an Eastern Cooperative Oncology Group performance status of 0 or 1 (within 14 days 
prior to the initiation of study treatment) 
 Have adequate bone marrow, liver function, and renal function as measured by the 
following laboratory assessments conducted within 7 days prior to the initiation of study 
treatment: 
o Total bilirubin < 1.5 times the upper limit of normal (ULN) 
o Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) < 2.5 
times the ULN (< 5 times ULN for patients with liver involvement of their 
cancer) 
o Lipase < 1.5 times the ULN 
o Serum creatinine < 1.5 times the ULN 
o Glomerular filtration rate > 30 mL/min/1.73 m2 according to the modified 
diet in renal disease abbreviated formula  
o International normalized ratio (INR) of prothrombin time (PT; PT-INR) and 
partial thromboplastin time (PTT) < 1.5 times the ULN 
o Platelet count > 100000 /mm3, hemoglobin (> 9 g/dL, absolute neutrophil 
count > 1500/mm3. 
o Alkaline phosphatase limit ≤ 2.5 times the ULN (< 5 times ULN for patients 
with liver involvement of their cancer) 
 If female and of childbearing potential, have a NEGATIVE result on a pregnancy test 
performed a maximum of 7 days before initiation of study treatment  
 If female and of childbearing potential or if male, must agree to use adequate 
contraception (e.g., abstinence, intrauterine device, oral contraceptive, or double-
barrier method) based on the judgment of the investigator or a designated associate 
from the date on which the ICF is signed until 6 months after the last dose of study drug. 
 
5.1.2 Exclusion criteria  
Patients who meet the following criteria at the time of screening will be excluded (from 
CORRECT Trial): 

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 Patients with hypotension (less than 90/60mm Hg) or at risk of symptomatic hypotension 
(fainting or dizziness) will be excluded.  
 Prior treatment with regorafenib or any VEGFR-targeting kinase inhibitor. 
 Previous assignment to treatment during this study. Patients permanently withdrawn from 
study participation will not be allowed to re-enter the study. 
 Concurrent cancer requiring treatment that is distinct in primary site or histology from 
colorectal cancer. 
 Major surgical procedure, open biopsy, or significant traumatic injury within 28 days before 
start of study medication. 
 Unstable/uncontrolled cardiac disease including: congestive heart failure > New York Heart 
Association (NYHA) class 2; unstable angina (angina symptoms at rest), new-onset angina 
(begun within the last 3 months); myocardial infarction less than 6 months before start of 
study drug; cardiac arrhythmias requiring anti-arrhythmic therapy (beta blockers or digoxin 
are permitted). 
 Uncontrolled hypertension. (Systolic blood pressure > 150 mmHg or diastolic pressure > 90 
mmHg despite optimal medical management). 
 Patients with pheochromocytoma. 
 Arterial or venous thrombotic or embolic events such as cerebrovascular accident (including 
transient ischemic attacks), deep vein thrombosis or pulmonary embolism within the 6 
months before start of study medication. 
 Ongoing infection > grade 2 NCI-CTCAE version 4.03 
 Known history of human immunodeficiency virus (HIV) infection. 
 Known history of chronic hepatitis B or C. 
 Patients with seizure disorder requiring medication. 
 Symptomatic metastatic brain or meningeal tumors unless the patient is > 6 months from 
definitive therapy, has a negative imaging study within 4 weeks of study entry and is 
clinically stable with respect to the tumor at the time of study entry. Also the patient must 
not be undergoing acute steroid therapy or taper (chronic steroid therapy is acceptable 
provided that the dose is stable for one month prior to and following screening radiographic 
studies) 
 History of organ allograft 
 Patients with evidence or history of bleeding diasthesis, including patients who have had a 
transfusion and/or radiographic endoscopic or elective operative interaction to control the 
bleeding or hemorrhage event within four weeks prior to the study. 
 Non-healing wound, ulcer, or bone fracture. 
 Renal impairment or failure requiring hemo-or peritoneal dialysis. 
 Patients with severe hepatic impairment.  
 Dehydration NCI-CTC version 4.03 grade > 1. 
 Substance abuse, medical, psychological or social conditions that may interfere with the 
patient’s participation in the study or evaluation of the study results 

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 Any illness or medical conditions that are unstable or could jeopardize the safety of the 
study 
 Interstitial lung disease with ongoing signs and symptoms at the time of informed consent. 
 Persistent proteinuria of CTC Grade 3 or higher. Quantification of proteinuria done by 
urinary protein/creatinine ratio on a random urine sample preferably taken at mid-morning. 
If protein/creatinine ratio is greater than 30g/mol Creat, then a 24-hour urine protein test 
should be performed to confirm Grade 3 or higher proteinuria (> 3.5 g/24 hours). 
 Patients unable to swallow oral medications 
 Any malabsorption condition 
 Unresolved toxicity higher than NCI-CTCAE (version 4.03) Grade 1 attributed to any prior 
therapy/procedure excluding alopecia and oxaliplatin induced neurotoxicity ≤Grade 2 
 Patients who are hypersensitive to perindopril, as well as those hypersensitive to 
regorafenib, sorafenib, drugs in the same class or any ingredient in the formulation. 
 Patients who cannot tolerate the full dose of perindopril (4 mg) for any reason. 
 Patients receiving systemic anticancer therapy including cytotoxic therapy, signal 
transduction inhibitors, immunotherapy, hormonal therapy and experimental or approved 
therapies during this trial or within 14 days before starting to receive study medication. 
 
In addition, patients will be excluded for the following reasons (From perindopril monograph). 
Patients with a history of hereditary/idiopathic angioedema, or angioedema related to previous 
treatment with an angiotensin converting enzyme inhibitor. 
 Pregnant women or those planning to become pregnant, nursing women.  
 Patients with hereditary problems of galactose intolerance, glucose-galactose 
malabsorption, or the Lapp lactase deficiency. 
 Patients with pre-existing anti-hypertension treatment with an ACE inhibitor or angiotensin 
receptor blocker (ARB) are to be excluded. Co-administration of ACE inhibitors, including 
COVERSYL®, with other agents blocking the Renin-Angiotensin System (RAS), such as ARBs 
or aliskiren-containing drugs, will not be allowed, since such treatment has been associated 
with an increased incidence of severe hypotension, renal failure, and hyperkalemia. 
 
5.1.3 Justification of selection criteria 
The exclusion of certain concomitant conditions and medications as outlined above and in 
Section 6.9 was necessitated by the known toxicity profile of the agents under investigation and 
its interaction with other classes of medications, and also based on the understanding of the 
concomitant conditions in colorectal cancer. This is to assure, to the best of our ability, the 
safety of the patients who would participate in this study. 
 

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5.2 Withdrawal of subjects from study 
Patients will remain on trial and will receive regorafenib and perindopril until clinical 
radiological disease progression, based on RECIST v1.1 criteria. If patients progress on 
regorafenib, both drugs will be stopped. However, after the patient progresses (i.e. is no longer 
on trial) the medication can be continued if the investigator feels that there is a clinical benefit. 
A subject may discontinue participation in this study at any time at the investigator’s discretion 
or at the request of the subject.  
If a subject discontinues before treatment starts (Cycle 1, day 1) she/he is not required to 
complete end of study assessments. 
If a subject discontinues after receiving treatment for any reason, the investigator should make 
every effort to complete end of study assessment and the one month follow-up assessments of 
concomitant medications and adverse events.  
Any occurrence of death, and any excluded medications taken after study withdrawal should be 
documented in the CRF and source documents.  
Subjects withdrawn from the study retain their subject number, if already given. New subjects will be 
allocated a new subject number. 
 
5.2.1 Withdrawal of subjects from study treatment 
Subjects must be withdrawn from study treatment for the following reasons: 
 At their own request or at the request of their legally acceptable representative. 
 At any time during study treatment and without giving reasons, a subject may decline to 
participate further. The subject will not suffer any disadvantage as a result. 
 If, in the investigator's opinion, continuation of study treatment would be harmful to 
the subject's well-being. 
 Severe allergic reactions, such as exfoliate erythroderma, anaphylaxis, or vascular 
collapse. 
 Any other potential adverse reaction deemed sufficiently serious to warrant 
discontinuation of treatment by the Investigator. 
 Substantial non-compliance with study procedures. 
 Patients with a b-HCG test consistent with pregnancy. Pregnancy will be reported along 
the same timelines as a serious adverse event (see Section 7.5.2). 
 Use of illicit drugs or other substances that may, in the opinion of the Investigator or a 
designated associate(s), have a reasonable chance of contributing to toxicity or 
otherwise confound the results. 
 Any hemorrhage or bleeding event > CTCAE Grade 3 within 4 weeks of start of study 
medication. 

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 Development of any intercurrent illness or situation which would, in the judgment of 
the Investigator, may affect assessments of clinical status and study endpoints to a 
relevant degree. 
 Patients should come off study treatment for disease progression. If the treating 
physician feels that the patient will receive clinical benefit from continued study 
treatment despite progression, the patient may remain on study drug. However, the 
patient will be considered as having progressive disease, as per the RECIST criteria, 
version 1.1. 
 The development of a second malignancy. 
 Patient lost to follow up. 
 Interruption of study drug is longer than 28 consecutive days (including the 1 week 
break in each cycle). 
 More than two dose reductions of the study drug are necessary. 
 Death.  
 
A subject who is terminated from the study after signing the informed consent but before 
starting the drug is regarded as a “screening failure”. 
 
Any subject removed from study treatment will remain under medical supervision until 
discharge or transfer is medically acceptable. 
 
In all cases, the reason for withdrawal must be recorded in the CRF and in the subject's medical 
records.  
 
Details for the premature termination of the study are provided in Section 10 (Premature 
termination of the study). 
 
For all subjects who discontinue study treatment, relevant visit data will be entered into the 
case report form and any unused study drug will be accounted for and returned. Adverse 
events or clinical laboratory abnormalities that cause a patient to discontinue from study 
treatment should be followed until they recover or stabilized. 
 
All subjects will enter the follow-up period upon discontinuation of the treatment drugs. 
Regardless of the reason for discontinuation all subjects will be followed for survival until death 
is documented, except for those who specifically withdraw consent to follow-up. Subjects who 
withdraw consent from study drug treatment may enter the Follow-up Period. 
 
Assessment of survival status will be performed approximately every month. In addition, for 
subjects, who discontinue study treatment and have not experienced PD, available tumor 
assessments will be recorded in the CRF until PD is documented. 
 

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Death due to mCRC is not a serious adverse event. If any patient should die during the study 
treatment or within 30 days of their last dose of study drug, of causes NOT related to the 
disease itself (mCRC), the Investigator or a designated associate(s) will inform the Bayer 
HealthCare Medical hotline. If the cause of death is not related to the disease itself (mCRC), the 
cause of death should be recorded in detail within 24 hours of notification to the investigator 
on a Serious Adverse Event Form and transmitted to Health Canada. 
 
5.2.2 Withdrawal of subjects from the follow-up period 
Subjects must be withdrawn from the study follow-up period for the following reasons: 
· Patient lost to follow up. 
· At any time during the study and without giving reasons, a subject may decline to participate 
further. The subject will not suffer any disadvantage as a result. 
· At the discretion of the investigator.  
 
5.2.3 Replacement 
A subject withdrawn from study treatment will not be replaced. 
 
5.3 Subject identification 
Subject will be identified by a 3 digit number beginning with 001, sequenced consecutively. 
6. Treatments 
 
6.1 Treatments to be administered 
The following investigational products will be used in this study:  
 Regorafenib, 40 mg tablets 
 COVERSYL® (perindopril erbumine) 4 mg. 
 
Stivarga® will be used as per the marketed indication (“on label”), Coversyl® will be used off-
label and as such a Clinical Trial Application will be filed with Health Canada.  
COVERSYL® (perindopril erbumine) 4 mg will be administered daily for 21 days of a 28-day 
cycle. Perindopril will be administered orally, first thing in the morning on an empty stomach.  
 
Regorafenib will be administered 160 mg daily for 21 days of a 28-day cycle. Regorafenib will be 
administered with low fat breakfast, one hour after perindopril. A low fat breakfast as defined 
by the Stivarga® (regorafenib) Product Monograph is one that is <30% fat, ~300-550 calories. See 
Appendix 14.4. 
 
Table 1: Treatment Plan  

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Drug  
Dose  
Administration Guidelines  
Perindopril  
4 mg daily*  
Administered orally on an empty stomach first thing 
in the morning. 
Regorafenib  
160 mg daily
 
 
Administered orally, one hour after waking with a 
low fat breakfast. 
Caution with use of potassium sparing diuretics. 
Caution for development of hypotension with diuretics. 
BSC includes any concomitant medications or treatments: antibiotics, analgesics, radiation 
therapy for pain control (limited to bone metastases), corticosteroids, transfusions, 
psychotherapy, growth factors, palliative surgery, or any other symptomatic therapy necessary 
to provide BSC, except other investigational anti-tumor agents or anti-neoplastic 
chemotherapy. 
Patients will continue study treatment until disease progression or they meet the criteria in 
Section 5.2. The dose modifications will follow the pre-defined dose levels outlined in Section 
6.4. 
 
6.2 Identity of study treatment  
The regorafenib 40 mg tablet contains regorafenib and the inactive excipients microcrystalline 
cellulose, croscarmellose sodium, magnesium stearate, povidone, colloidal anhydrous silica, 
Polyvinyl alcohol-part hydrolyzed, Talc, Titanium dioxide - E 171 (color index 77891), 
Macrogol/PEG 3350, Lecithin (Soy), Iron oxide yellow - E172 (color index 77491), Iron oxide red 
- E 172. 
 
The perindopril 4 mg tablets contains perindopril erbumine 4g, as well as Chlorophyllin (E141ii) 
Aluminium Lake, hydrophobic colloidal silica, lactose monohydrate, magnesium stearate, 
microcrystalline cellulose. Each light green, rod shaped breakable tablet engraved with 
 on 
one face and scored on both edges contains: perindopril erbumine 4 mg. pills are available in 
blister packs of 30 tablets and in bottles of 100 tablets.  
  
6.3 Treatment assignment  
N/A – all patients in this single-arm trial will receive treatment with regorafenib and 
perindopril. 
 

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6.4 Dosage and administration  
6.4.1 Perindopril 
COVERSYL® (perindopril erbumine) 4 mg will be administered daily for 21 days of a 28-day 
cycle. Perindopril will be administered orally, first thing in the morning on an empty stomach. If 
a dose is missed, a double dose should not be taken, but just carry on with the next dose at the 
normal time.  
The Investigator or designated study personnel is responsible for dispensing the study drug to 
patients. 
6.4.2 Regorafenib 
Regorafenib will be administered 160 mg daily for 21 days of a 28-day cycle. Regorafenib will be 
administered with low fat breakfast, one hour after perindopril. A low fat breakfast as defined 
by the monograph10 is one that is <30% fat, ~300-550 calories (see appendix 14.4). 
The rationale for the dose in this study is based upon the phase I data from Study 11650 (in 
which escalating doses from 10 mg to 220 mg of regorafenib were administered on a 
discontinuous schedule [3 weeks out of every 4]) and same dose and schedule have been used 
in Study 14387 (including Asian subjects). 
Signs of anti-tumor activity were observed in subjects receiving doses from 60 mg up to 220 mg 
per day on a discontinuous schedule (3 weeks out of every 4). However, of the 220 mg/day 
cohort, 8 out of 12 subjects required a dose reduction for toxicity, whereas only 1 subject of 12 
on the 160 mg/day cohort required such a dose reduction. Thus, based upon the efficacy and 
toxicity data, 160 mg was chosen as the dose for this study. 
Dose administration 
Regorafenib will be orally administered. The Investigator or designated study personnel is 
responsible for dispensing the study drug to patients. 
 
Regorafenib should be taken in the morning with approximately 8 fluid ounces (240 mL) of 
water. The study drug should be administered after a light (<30% fat) breakfast. Some examples 
of low-fat breakfasts are provided in Appendix 14.4. 
If a dose of regorafenib is missed, the subsequent dose of regorafenib should not be doubled. 
The investigator should be informed if the dose of regorafenib taken exceeded the scheduled 
dose. 
 
Dose modification and delays  
 
(Note that this confidential information comes from Bayer’s CONCUR study protocol (integrated 
protocol v2.0, dated 28Dec2012).  

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Doses of study drug may be delayed or reduced in case of clinically significant hematologic and 
other toxicities that are possibly, probably or definitely related to protocol therapy. 
Toxicities will be graded using the NCI Common Terminology Criteria Version 4.2. 
The modifications of regorafenib will follow the following pre-defined dose levels: 
Table 2: dose modifications for regorafenib 
Dose level 0 
(standard dose) 
160 mg po od 
4 tablets of regorafenib, 40 mg-tablet,  
Dose level -1 
120 mg po od 
3 tablets of regorafenib, 40 mg-tablet,  
Dose level -2 
80 mg po od  
2 tablets of regorafenib, 40 mg-tablet,  
 
If a subject experiences several toxicities and there are conflicting recommendations, the 
recommended dose adjustment which reduces the dose to the lowest level should be used.  
Table 3 outlines dose adjustments for toxicities related to study drug except hand-foot skin 
reaction, hypertension and liver function test (ALT and AST) abnormalities. Table 4 outlines the 
suggested dose reductions for HFSR while Table 5 outlines suggested dose reductions for 
treatment-emergent hypertension. Table 6 outlines the suggested dose reductions for ALT 
and/or AST increases related to study drug.  
If reduction by more than two dose levels is required, treatment will be discontinued.  
If a dose reduction has been performed, intra- subject dose re-escalation can be considered (up 
to the maximal 160 mg daily dose) at the discretion of the treating physician provided that the 
toxicity (ies) has resolved to baseline. 
Table 3: Dose Modification/Delay for Toxicities Related to Study Drug (Except Hand Foot 
Skin Reaction, Hypertension, AST and ALT)a 
Grade of 
Event (CTCAE 
version 4.03 
Dose 
Interruption 
Dose Modification 
Dose for Subsequent Cycles 
Grade 0-2 
Treat on time 
No change 
No change 

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Grade 3 
Delay until  
Grade 2b 
Reduce 1 dose level 
If toxicity remains  Grade 2, 
dose re-escalation can be 
considered at the discretion 
of the treating investigator. If 
dose is re-escalated and 
toxicity ( Grade 3) recurs, 
institute permanent dose 
reduction. 
Grade 4 
Delay until  
Grade 2b 
Reduce by 1 dose 
level. Permanent 
discontinuation can 
be considered at 
treating investigator’s 
discretion. 
 
a 
Excludes alopecia, non-refractory nausea/vomiting, non-refractory 
hypersensitivity, non clinical significant and asymptomatic laboratory abnormalities. 
b 
If no recovery after a 4-week delay, treatment will be permanently discontinued. 
 
In addition to these recommended dose modifications, subjects who develop diarrhea, 
mucositis, anorexia or other events predisposing to fluid loss or inadequate fluid intake should 
be carefully monitored and rehydrated as clinically necessary. This is in order to minimize the 
risk of postural hypotension and renal failure. 
 
Table 4 Dose Modifications for Hand-Foot Skin Reaction 
Skin Toxicity Grade 
(according to CTCAE version 4.03 
“Palmar-plantar erythrodysesthesia 
syndrome”) 
Occurrence c 
Suggested Dose Modification c  
Grade 1: Numbness, dysesthesia, 
paraesthesia, tingling, painless swelling, 
erythema or discomfort of the hands or 
feet which does not disrupt the subjects 
normal activities 
Any 
Maintain dose level and institute immediately 
supportive measures for symptomatic relief  
Grade 2: Painful erythema and swelling 
of the hands or feet and/or discomfort 
which affects the subject’s normal 
1st occurrence 
Consider decreasing dose by one dose level and 
institute immediately supportive measures. 
If no improvement, interrupt therapy for a minimum 

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Table 4 Dose Modifications for Hand-Foot Skin Reaction 
Skin Toxicity Grade 
(according to CTCAE version 4.03 
“Palmar-plantar erythrodysesthesia 
syndrome”) 
Occurrence c 
Suggested Dose Modification c  
activities 
of 7 days, until toxicity resolves to Grade 0-1.b 
 
No improvement 
within 7 days or 2nd 
occurrence 
Interrupt therapy until toxicity resolves to Grade 0-
1. When resuming treatment, treat at reduced dose 
level.b 
 
3rd occurrence 
Interrupt therapy until toxicity resolves to Grade 0-
1. When resuming treatment, decrease dose by one 
additional dose level.a b 
 
4th occurrence 
Discontinue therapy 
Grade 3: Moist desquamation, 
ulceration, blistering or severe pain of 
the hands or feet, or severe discomfort 
that causes the subject to be unable to 
work or perform activities of daily living. 
1st occurrence 
Institute supportive measures immediately. 
Interrupt therapy for a minimum of 7 days until 
toxicity resolves to Grade 0-1. When resuming 
treatment, decrease dose by one dose level.b 
 
2nd occurrence 
Institute supportive measures immediately. 
Interrupt therapy for a minimum of 7 days until 
toxicity resolves to Grade 0-1. When resuming 
treatment, decrease dose by one additional dose 
level.a b 
 
3rd occurrence 
Discontinue treatment permanently. 
a Subjects requiring  2 dose reductions ( 80mg) should go off protocol therapy 
b If toxicity returns to Grade 0-1 after dose reduction, dose re-escalation is permitted at the discretion of the 
investigator 
c A more conservative dose modification approach, if medically indicated, is acceptable, but please contact the sponsor 
prior to making any changes.  
 
If no recovery after a 4-week delay, treatment will be discontinued permanently. 
For subjects who require a dose reduction for Grade 2 or 3 rash or hand-foot skin reaction 
(HFSR), the dose of study drug may be increased to the starting dose after one full cycle of 
therapy has been administered with the reduced dose without the appearance of rash or HFSR 
 Grade 1. 
The following measurements should be considered for prevention and treatment of HFSR: 

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Control of calluses 
Before initiating treatment with regorafenib: 
 Check condition of hands and feet 
 Suggest a manicure/pedicure, when indicated 
 Recommend pumice stone use for callus or ‘rough spot’ removal. 
During regorafenib treatment: 
 Avoid pressure points 
 Avoid items that rub, pinch, or create friction. 
Use of creams 
Apply non-urea based creams liberally.e.g.: 
Keratolytic Creams: Use sparingly and only to affected (hyperkeratotic) areas 
 Urea-based creams 
 Salicylic acid 6% 
Alpha Hydroxy Acids (AHA) based creams 
 Approximately 5-8% provide gentle chemical exfoliation 
 Apply liberally two times each day 
Topical analgesics like lidocaine 2% to be considered for pain control  
Topical corticosteroids like clobetasol 0.05% should be considered for subjects with Grade 2 or 
3 hand-foot skin reaction. Avoid systemic steroids. 
Cushions 
Protect tender areas 
 Use socks/gloves to cover moisturizing creams 
 Wear well-padded footwear 
 Use insole cushions or inserts (e.g., silicon, gel) 
 Foot soaks with tepid water and Epsom salts 
 
 

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Table 5: Dose modification for Treatment-Emergent Hypertension 
Grade of Event 
(CTCAE version 
4.03) 
Definition 
Anti-hypertensive therapy 
Regorafenib dosing 
Grade 1 
Pre-hypertension 
(systolic BP 120-139 
mmHg or diastolic BP 80-
89 mmHg)  
None 
Continue regorafenib. Consider 
increased blood pressure 
monitoring. 
Grade 2 
Systolic BP 140-159 
mmHg or diastolic BP 90-
99 mmHg OR 
Symptomatic increase by 
 20 mmHg (diastolic) if 
previously within normal 
limits  
Treat with the aim to achieve 
diastolic BP  90 mmHg -If BP 
previously within normal 
limits, start anti-hypertensive 
monotherapy -If subject 
already on anti-hypertensive 
medication, titrate up the dose 
Continue regorafenib. If 
symptomatic, hold regorafenib 
until symptoms resolve AND 
diastolic BP  90 mmHga. When 
regorafenib is restarted, 
continue at the same dose level. 
Grade 3 
Systolic BP  160 mmHg 
or diastolic BP  100 
mmHg OR More than 
one drug or more 
intensive therapy than 
previously used indicated 
Treat with the aim to achieve 
diastolic BP  90 mmHg -Start 
anti-hypertensive medication 
AND/OR -Increase current 
anti-hypertensive medication 
AND/OR -Add additional anti-
hypertensive medications. 
Hold regorafenib until diastolic 
BP  90 mmHg, and if 
symptomatic, until symptoms 
resolved. When regorafenib is 
restarted, continue at the same 
dose level. If BP is not controlled 
with the addition of new or 
more intensive therapy, reduce 
by 1 dose levelb. If Grade 3 
hypertension recurs despite 
dose reduction and 
antihypertensive therapy, 
reduce another dose levelc. 
Grade 4 
Life-threatening 
consequences (e.g. 
malignant hypertension, 
transient or permanent 
neurologic deficit, 
hypertensive crisis)  
 
Discontinue therapy 
Abbreviations: BP = blood pressure; CTCAE = Common Terminology Criteria for Adverse Events, version 
4.03 
a 
Subjects requiring a delay of  4 weeks should discontinue protocol therapy. 
b 
If blood pressure remains controlled for at least one full cycle, dose re-escalation is permitted 
at the investigator’s discretion.  
c 
Subjects requiring  2 dose reductions (a dose lower than 80 mg po od) should discontinue 
protocol therapy. 
 

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Blood pressure (BP) should be monitored weekly for the first 6 weeks of treatment. Blood 
pressure is to be recorded by qualified staff, e.g. a study nurse, treating physician, or nurse 
practitioner and entered onto the CRF.  
The dose modification schedule for treatment emergent hypertension during regorafenib 
dosing should be followed (see Table 5). Subjects’ BP measurements will be monitored and 
appropriate treatment to effectively control hypertension under regorafenib treatment is 
strongly recommended.  
The selection of anti-hypertensive medication used in this setting should be performed at the 
investigator's discretion, considering possible site-specific treatment guidelines. All medication 
should be recorded in the subject’s CRF. 
 
 

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Table 6: Dose modifications/interruption for ALT and/or AST increases related to study drug 
Grade of Event 
(CTCAE version 4.03) 
1st occurrence 
Restart 
Reoccurrence 
AST and/or ALT 
baseline G0 → G1 
or  
baseline G1 → G2 
Treat on time and check AST, 
ALT and bilirubin 2x/week for 
2 weeks followed by weekly 
assessments for at least 4 
weeks. 
 
Treat on time and check AST, 
ALT and bilirubin 2x/week for 
2 weeks followed by weekly 
assessments for at least 4 
weeks. 
AST and/or ALT 
baseline G0 → G2 
Delay until  G1 and check 
AST, ALT, bilirubin 2x/week. 
 
Reduce 1 dose level and 
check AST, ALT, bilirubin 
2x/week for 2 weeks 
followed by weekly 
assessments for at least 4 
weeks.a 
Discontinueb 
AST and/or ALT 
baseline any grade 
→ G3 
Delay until  G1 if baseline 
was G0 or G1 OR until G2 if 
baseline was G2. 
Check AST, ALT, bilirubin 
2x/week. 
If ALT or AST  8 x ULN with a 
concomitant rise in bilirubin 
(of any degree) compared to 
previous bilirubin values, 
consider permanent 
discontinuation at the first 
occurrenceb.  
Reduce 1 dose level and 
check AST, ALT, bilirubin 
2x/week for 2 weeks 
followed by weekly 
assessments for at least 4 
weeks.a  
Discontinueb 
AST and/or ALT 
baseline any grade 
→ G4 
Discontinueb 
 
 
Abbreviations: AST = aspartate aminotransferase, ALT = alanine aminotransferase 
a If all values remain stable for 2 full cycles, dose re-escalation may be considered at the discretion of the investigator. 
After re-escalation AST, ALT, bilirubin should be checked 2x/week for 2 weeks, followed by weekly assessments for at 
least 4 weeks. 
b In case of discontinuation, check AST, ALT, bilirubin should be checked twice a week for 2 weeks, followed by weekly 
assessments until recovery to baseline. 
 
During the first 2 cycles of treatment, ALT, AST and bilirubin must be monitored weekly.  

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6.5 Blinding  
 
N/A All patients in the study will receive both regorafenib and perindopril.  
6.6 Drug logistics and accountability  
 
All study drugs will be stored at the investigational site in accordance with GCP and GMP 
requirements. Study supply of regorafenib, along with storage and handling instructions will be 
provided by Bayer HealthCare. Perindopril, including its storage and handling instructions will 
be obtained by the sponsors from the market. Both study drugs will be inaccessible to 
unauthorized personnel. 
Special storage conditions and a complete record of batch numbers and expiry dates can be 
found in the study file; the site-relevant elements of this information will be available in the 
investigator site file. The responsible site personnel will confirm receipt of study drug and will 
use the study drug only within the framework of this clinical study and in accordance with this 
protocol. Receipt, distribution, return and destruction (if any) of the study drug must be 
properly documented according to BCCA specified procedures. Written instructions on 
medication destruction will be made available to affected parties as applicable. 
To have complete control over the distribution and use of the study drug, the drug 
accountability must be performed on Day 1 of each cycle starting on Cycle 2. Bottles must be 
returned to the Investigator with all unused medication. Throughout the study, all unused study 
medication will be accounted for. The information will be recorded in the drug dispensing log, 
as per BCCA protocol. 
6.7 Treatment compliance  
An adequate record of the receipt, distribution and return of all study medication supplies must 
be recorded on the Drug Accountability Form. The number of tablets dispensed and returned 
by the patients will be recorded in the drug accountability logs in the CRF. 
 
Drug accountability must be done at every cycle, starting on Day 1 of Cycle 2. 
 
The dose and schedule of regorafenib and perindopril administered to each subject will be 
recorded in the CRF. The reason(s) for dose delay, reduction or interruption also will be 
recorded in the CRF. 
 
6.8 Post-study therapy 
All subjects will enter the follow-up period upon discontinuation of study treatment. Regardless 
of the reason for discontinuation all subjects will be followed for survival until death is 

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documented, except for those who specifically withdraw consent to follow-up. Subjects who 
withdraw consent from study drug treatment may enter the Follow-up Period. 
 
6.9 Prior and concomitant therapy 
All medication which is considered necessary for the subject’s welfare, and which is not 
expected to interfere with the evaluation of the study drug, may be given at the discretion of 
the Investigator (except strong CYP3A4 inhibitors/inducers [see Appendix 14.7 and 14.8]). 
All concomitant medications (including start/stop dates, dose frequency, route of 
administration and indication) must be recorded in the patient’s source documentation, as well 
as in the appropriate pages of the CRF. Specific caution should be employed when considering 
or administering a concomitant medication that is metabolized by the cytochrome enzymes 
CYP2C8, CYP2B6 and CYP2C9 or the Phase II glucuronosyl transferases UGT1A1 and 1A9. Such 
concomitant medications should be avoided, if possible. 
Concomitant administration of ketoconazole, a strong CYP3A4 inhibitor, with regorafenib 
resulted in an increase in mean exposure (AUC) of regorafenib of approximately 33%, and a 
decrease in mean exposure of the active metabolites, M-2 (N-oxide) and M-5 (N-oxide and N-
desmethyl), of approximately 90%. It is recommended to avoid concomitant use of strong 
inhibitors of CYP3A4 activity (e.g. clarithromycin, grapefruit juice, itraconazole, ketoconazole) 
as their influence on the steady-state exposure of regorafenib and its metabolites has not been 
studied. (See Appendix 14.7) 
Concomitant administration of rifampin, a potent inducer of CYP3A4, resulted in a mean 
decrease in regorafenib AUC of approximately 50%. There are no clinical data evaluating the 
effect of chronically co-administered CYP3A4 inducers on regorafenib's efficacy. Since there is a 
possibility of decreased regorafenib efficacy upon chronic co-administration of CYP3A4 inducers 
with regorafenib, due to the lower plasma concentrations, chronic co-administration of strong 
CYP3A4 inducers with regorafenib should be avoided to the extent possible. (See Appendix 
14.8) 
In vitro data indicate that regorafenib, as well as its active metabolites M-2, inhibits 
glucuronidation mediated by uridine diphosphate glucuronosyl transferases UGT1A1 and 
UGT1A9, whereas M-5 only inhibits UGT1A1 at concentrations that are achieved in vivo at 
steady state.  Administration of regorafenib with a 5 day break prior to administration of 
irinotecan resulted in humans in an increase of approximately 44% in mean exposure (AUC) of 
SN 38, a substrate of UGT1A1 and an active metabolite of irinotecan.  An increase in mean 
exposure (AUC) of irinotecan of approximately 28% was also observed.  This indicates that co 
administration of regorafenib may increase systemic exposure to UGT1A1 and UGT1A9 
substrates.   

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Administration of regorafenib (160 mg for 14 days) prior to administration of a single dose of 
rosuvastatin (5 mg), a BCRP substrate, resulted in a 3.9-fold increase in mean exposure (AUC) of 
rosuvastatin and a 4.6-fold increase in Cmax. This indicates that co-administration of regorafenib 
may increase the plasma concentrations of other concomitant BCRP substrates (e.g. 
methotrexate, fluvastatin, atorvastatin). Therefore, it is recommended to monitor patients 
closely for signs and symptoms of increased exposure to BCRP substrates. 
The concentration-time profile indicates that regorafenib and its metabolites may undergo 
enterohepatic circulation.  Co-administration with neomycin, a poorly absorbed antimicrobial 
agent used for eradicating the gastrointestinal microflora (which may interfere with the 
enterohepatic circulation of regorafenib) had no effect on the regorafenib exposure. There was 
an approximately 80% decrease in the exposure of the active metabolites M-2 and M-5.  Effects 
of other antibiotics have not been studied. The clinical significance of the neomycin effect and 
potential interactions with other antibiotics is unknown, but may result in a decreased efficacy 
of regorafenib. 
The concentration-time profile indicates that regorafenib and its metabolites may undergo 
enterohepatic circulation.  Bile salt-sequestering agents may interact with regorafenib by 
forming insoluble complexes which may impact absorption (or reabsorption), thus resulting in 
potentially decreased exposure.  The clinical significance of these potential interactions is 
unknown, but may result in a decreased efficacy of regorafenib.  
Co-administration of ACE inhibitors, including COVERSYL®, with other agents blocking the RAS, 
such as ARBs or aliskiren-containing drugs, will not be allowed, since such treatment has been 
associated with an increased incidence of severe hypotension, renal failure, and hyperkalemia.  
Caution with use of potassium sparing diuretics 
Caution for development of hypotension with diuretics 
BSC includes any concomitant medications or treatments: antibiotics, analgesics, radiation 
therapy for pain control (limited to bone metastases), corticosteroids, transfusions, 
psychotherapy, growth factors, palliative surgery, or any other symptomatic therapy necessary 
to provide BSC, except other investigational anti-tumor agents or anti-neoplastic 
chemotherapy. 
Permitted concomitant medications: 
 Standard therapies for concurrent medical conditions. Prophylactic anti-emetics may be 
administered according to standard practice. 

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 Treatment with non-conventional therapies (for example herbs or acupuncture), and 
vitamin/mineral supplements is acceptable provided that they do not interfere with the 
study endpoints, in the opinion of the Investigator. St John’s wort is not permitted. 
 Bisphosphonates 
 Patients who are therapeutically treated with an agent such as warfarin or heparin will 
be allowed to participate provided that no prior evidence of underlying abnormality in 
coagulation parameters exists. Close monitoring of at least weekly evaluations will be 
performed until INR/PTT is stable based on a measurement that is pre-dose as defined 
by the local standard of care. 
 Clinical data indicate that regorafenib has no effect on digoxin pharmacokinetics, 
therefore can be given concomitantly with p-glycoprotein substrates, such as digoxin, 
without a clinically meaningful drug interaction. 
 
Non-permissible concomitant medications: 
 Systemic anticancer therapy including cytotoxic therapy, signal transduction inhibitors, 
immunotherapy, hormonal therapy and experimental or approved therapies during this 
trial or within 14 days before starting to receive study medication. 
 TKIs 
 Bone marrow transplant or stem cell rescue. 
 Prior radiation and concomitant palliative radiation therapy is allowed if the target 
lesion(s) are not included within the radiation field and no more than 10% of the bone 
marrow is irradiated. 
 Use of biologic response modifiers, such as granulocyte colony stimulating factor (GCSF), 
within 3 weeks of study entry. G-CSF and other hematopoietic growth factors may be 
used during the study in the management of acute toxicity such as febrile neutropenia 
when clinically indicated or at the discretion of the investigator; however they may not 
be substituted for a required dose reduction. Patients taking chronic erythropoietin are 
permitted. 
 Patients taking narrow therapeutic index medications (e.g., warfarin, phenytoin, 
quinidine, carbamazepine, Phenobarbital and cyclosporine) should be monitored 
proactively. Warfarin is metabolized by the cytochrome enzyme CYP2C9 and its levels 
may be especially affected by regorafenib. 
 
Therapeutic monitoring should be performed consistent with the local clinical standard of care 
following dose modification of the agent. In general, patients should be closely monitored for 
side effects of all concomitant medications regardless of path of elimination. 

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7. Procedures and variables  
 
7.1 Schedule of procedures 
Please see study schedule, Table 7. 
 Patients will be seen by physician every week for the first cycle, every two weeks for the 
second cycle, at the start of each cycle after this, and at end of treatment.  
 Assessment of concomitant medications at the start and during each visit. 
 ECOG testing at start of treatment, at the start of physician visit and at the end of 
treatment.   
 Blood pressure will be measured every week for the first cycle, on day 1, 7, and 14 in the 
second cycle, at the start of each cycle after this, and at follow up visit.  
 Liver function tests [albumin, bilirubin (total), bilirubin (direct), alkaline phosphatase, GGT, 
AST, LDH] will be administered every week for the first cycle, every two weeks for the 
second cycle, at the start of each cycle after this, and at follow up visit.  
 Lipase testing, electrolytes, TSH, chemistry, CEA testing, CBC, and creatinine will be done at 
D1 of each cycle and at end of treatment. 
 A twelve-point ECG will be administered on D1 of each cycle and at the end of treatment. 
 Other tests will be administered as per standard of care for regorafenib and perindopril. 
 
The study protocol will include a patient education module. This will consist of a patient 
education brochure regarding the management of HFSR and will include the preventative 
measures patients can take to manage this side effect. 
 
Patients will have photos of hands and feet taken at BCCA media services for illustrative 
purposes only, on Day 1, Day 7, Day 14 and Day 21 of the first cycle only. A total of about eight 
photographs per visit will be taken to capture the dorsal and plantar sides of the patient’s 
hands and feet. The digital photographs will be labeled with your participant study number and 
the date. A digital copy of each photograph will be stored in the Cancer Agency Information 
System and a hardcopy stored in the subject study file. All photographs for the subject’s study 
folder are to be printed with images approximately 6.25 x 9 inches on 8.5 x 11 photo paper. All 
photos need to be identified with study ID number and date taken.

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7.1.1 Tabulated overview 
Table 7  
Procedure 
Day -28 
to 
Day -1 
Day -14 
to 
Day -1 
Day -7 
to 
Day -1 
Cycle 1 
Cycle 2 
Cycle 3+ 
End of 
treatment 
Follow up 
(+1 month) 
  
 
 
 
Day1 
Day7 
Day14 
Day21 
Day1 
Day7 
Day14 
Day21 
Day 1 
 
 
Medical History 
x 
 
 
 
 
 
 
 
 
 
 
 
x 
 
Physician Visit 
 
x 
 
x 
x 
x 
x 
x 
 
x 
 
x 
x 
 
Concomitant Meds. 
 
x 
 
x 
x 
x 
x 
x 
x 
x 
 
x 
x 
x 
ECOG 
 
x 
 
x 
x 
x 
x 
x 
 
x 
 
x 
x 
 
Blood Pressure 
 
x 
 
x 
x 
x 
x 
x 
x 
x 
 
x 
x 
 
Liver Function Tests 
 
 
x 
x 
x 
x 
x 
x 
 
x 
 
x 
x 
 
12-lead ECG 
x 
 
 
x 
 
 
 
x 
 
 
 
x 
x 
 
Cardiac Function 
Test*  
 
 
 
x¹ 
 
 
 
x¹ 
 
 
 
x¹ 
 
 
Lipase Testing  
 
 
x 
x# 
 
 
 
x 
 
 
 
x 
x 
 
PT or PT-INR and 
PTT   
 
 
x 
x# 
 
 
 
x 
 
 
 
x 
x 
 
Full urinalysis, 
measure of 
proteinuria and GFR  
 
 
x 
x# 
 
 
 
x 
 
 
 
x 
x 
 
AE 
 
 
 
x 
x 
x 
x 
x 
x 
x 
 
x 
x 
x 
CEA 
 
 
x 
x# 
 
 
 
x 
 
 
 
x 
x 
 
CBC 
 
 
x 
x# 
 
 
 
x 
 
 
 
x 
x 
 
Creatinine 
 
 
x 
x# 
 
 
 
x 
 
 
 
x 
x 
 
Electrolytes 
 
 
x 
x# 
 
 
 
x 
 
 
 
x 
x 
 
TSH 
 
 
x 
x# 
 
 
 
x 
 
 
 
x 
x 
 
Chemistry 
 
 
x 
x# 
 
 
 
x 
 
 
 
x 
x 
 
hCG 
 
 
x 
 
 
 
 
 
 
 
 
 
 
 
CT - every eight 
weeks 
x 
 
 
x 
 
 
 
 
 
 
 
x 
 
 
Photos  
 
 
 
x 
x 
x 
x 
 
 
 
 
 
 
 
 
Lipase, Creatinine, Electrolytes are generally inclusive with chemistry.  
34 patients, Study expected to last 2 -4 cycles 
 
Tests will be administered as per standard of care for Regorafenib 

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Weekly monitoring by physician in first cycle 
* Echocardiogram or MUGA scan 
¹ Echocardiogram or MUGA scan only if clinically indicated. Echocardiograms or MUGA scans should be performed by the same operator to minimize inter-observer variability.

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7.1.2 Timing of assessments  
 
7.1.2.1 Screening  
The assessments required as part of Screening can be completed in one or more visits, as long 
as the assessments are completed within the time frames listed below. 
 
The following procedures and assessments will be performed within 28 days of starting study 
drug: 
 Obtainment of written informed consent. No screening procedures may be performed 
unless written informed consent has been obtained (see Section 11.2) 
 Allocation of unique Study Identification Number 
 Confirm pathologic documentation of a primary diagnosis of CRC. 
 Radiological tumor assessment using the RECIST criteria, version 1.1 (see Appendix 14.1) 
must be performed. The radiological evaluation must include a CT or MRI of the chest, 
abdomen and pelvis and should meet the standard of care for the imaging of lesions in 
the respective organ system(s). A PET scan is not acceptable for radiological evaluation. 
 All additional suspected sites of disease should be imaged. A CT or MRI scan of the head 
must be performed with appropriate contrast media if a patient is suspected of having 
brain metastases, or is symptomatic. 
 Appropriate radiological evaluation should be obtained if bone metastases are 
suspected (e.g., bone scan). 
 Complete medical history including demographics, allergies, prior surgery and prior 
chemo/radiation therapy with documentation of treatment response. See section 
7.5.1.1 for detailed instructions on the differentiation between medical history and 
adverse events. 
 Previous HFSR (or HFS) of any grade with other chemotherapy (yes/no response only, no 
chart review). 
 12-lead ECG 
 
The following procedures and assessments will be performed within 14 days of starting study 
drug: 
 ECOG performance status (Appendix 14.6). 
 Physical examination including review of all organ systems, examination of pertinent 
organ systems, vital signs (heart rate, blood pressure, and temperature) weight and 
height. 
 The blood pressure measurements must be performed in a consistent manner using a 
manual cuff on the same arm. Have the patient sit comfortably for 5 minutes with feet 
on the floor and arm supported at heart level prior to taking the evaluation. The 
assessment must be made with the patients in the sitting position using the same arm 
for all evaluations. Two additional measurements, taken 5 minutes apart, should be 
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 Record of all concomitant prescribed and over-the-counter medications. All medications 
and significant non-drug therapies taken within 14 days before study treatment must be 
recorded in the CRF. 
 
The following procedures and assessments will be performed within 7 days of starting study 
drug: 
 A CBC with differential should be performed: RBC, hemoglobin, hematocrit, platelet 
count and WBC. WBC must include differential neutrophil, lymphocyte, monocyte, 
basophil and eosinophil counts. 
 Electrolyte panel: sodium, potassium, chloride and Chemistry panel: Aspartate Amino- 
Transferase (AST), bilirubin (total and direct), Gamma GT, alkaline phosphatase, total 
protein, albumin, calcium, lipase, amylase, phosphate, Lactic Dehydrogenase (LDH), 
glucose, creatinine and Blood Urea Nitrogen (BUN). 
 Thyroid function test (TSH, free T3, free T4). 
 Coagulation panel: Prothrombin time (PT) or the International Ratio of PT (PT-INR) and 
Partial Thromboplastin Time (PTT). 
 Urinalysis: appearance, pH, glucose, ketones, erythrocytes, leukocyte esterase, nitrite, 
bilirubin, urobilinogen, protein, creatinine, and protein/creatinine ratio. A microscopic 
analysis should be performed if the appearance is turbid, or if protein, leukocytes, 
erythrocytes or nitrite are out of normal range. 
 Quantification of proteinuria by urinary protein/creatinine ratio (UPCR) on a random 
urine sample preferably taken at mid-morning. This should be reported as the ratio of 
concentrations of total urine protein (in mg/dl) to urine creatinine (in g/dl). If UPCR is 
outside of Normal Range (>30 g/mol Creat), then a 24-hour urine protein test should be 
performed to confirm Grade 3 or higher proteinuria (>3.5 g/24 hours). 
 Measurement of GFR according to the MDRD (Modified diet in renal disease) 
abbreviated formula. 
 Carcinoembryonic antigen (CEA) testing. 
 A negative urine or serum pregnancy test for women of childbearing potential. 
 The inclusion and exclusion criteria should be checked during the screening period to 
ensure appropriate patients are enrolled. 
 
7.1.2.2 Treatment 
The following assessments should be performed on the first day of each cycle (every 4 weeks) 
prior to receiving study treatment (+/- 7 days): 
 The inclusion and exclusion criteria should be checked to ensure appropriate patients 
are treated at Day 1 of Cycle 1 only. 
 Physical examination including vital signs (pulse and blood pressure), weight, 
temperature and examination of pertinent organ systems ECOG performance status 

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 Toxicity and adverse events documentation (including Start/Stop dates, seriousness, 
CTC notation and grading, relationship to study drug, outcome and action taken) using 
CTCAE v4.03 
 Concomitant medications (including start/stop dates, dose, indication) 
 Echocardiogram or MUGA scan only if clinically indicated. Echocardiograms or MUGA 
scans should be performed by the same operator to minimize inter-observer 
variability. 
 
The following laboratory evaluations are not required at Day 1 of Cycle 1 if these were 
completed within 7 days of starting study drug treatment. Otherwise, these laboratory 
evaluations are required on Day 1 of each cycle: 
 CBC with differential should be performed: RBC, hemoglobin, hematocrit, platelet 
count and WBC. WBC must include differential neutrophil, lymphocyte, monocyte, 
basophil and eosinophil counts. (note: BCCA lab does 5 part differentials). 
 Electrolyte panel: sodium, potassium, chloride and Chemistry panel: Aspartate Amino-
Transferase (AST), bilirubin (total and direct), alkaline phosphatase, triglyceride levels, 
uric acid, total protein, albumin, calcium, lipase, amylase, phosphate, Lactic 
Dehydrogenase (LDH), glucose, creatinine and Blood Urea Nitrogen (BUN) 
 Thyroid function test (TSH, free T3, free T4) 
 Coagulation panel: Prothrombin time (PT) or the International Ratio of PT (PT-INR) and 
Partial Thromboplastin Time (PTT). If a patient is on warfarin with stable PT/INR at 
baseline, the PT/INR should be assessed on Day 5 of Cycle 1. If either of these values is 
above the acceptable range, the doses should be modified and the assessments 
should be repeated weekly until it is stable. 
 Urinalysis: appearance, pH, glucose, ketones, erythrocytes, leukocyte esterase, nitrite, 
bilirubin, urobilinogen, protein, creatinine, and protein/creatinine ratio. A microscopic 
analysis should be performed if the appearance is turbid, or if protein, leukocytes, 
erythrocytes or nitrite are out of normal range. 
 Quantification of proteinuria by urinary protein/creatinine ratio on a random urine 
sample preferably taken at mid-morning. This should be reported as the ratio of 
concentrations of total urine protein (in mg/dl) to urine creatinine (in g/dl). 
 Measurement of GFR according to the MDRD (Modified diet in renal disease) 
abbreviated formula. 
 
The following items are not required at Day 1 of Cycle 1 if these were completed within 7 days 
of starting study drug treatment. Otherwise, these items are to be complete on Day 1 of each 
cycle: 
 12-lead ECG 
 Assessment of AEs 
 Concomitant medications 
 Provide blood pressure diary to the patient 

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 Provide rash diary to the patient 
 Provide patient education brochure to patient 
 
The blood pressure must be monitored weekly for the first six weeks of study treatment. Either 
the blood pressure can be recorded by the treating physician and entered onto the CRF or by 
the patient and entered onto a patient diary. In the latter case, the patient should be instructed 
to contact the physician in the event of systolic ≥ 150 mm Hg and / or diastolic ≥100 mm Hg. 
The physician should confirm the reading before recording it into the CRF. Blood pressure 
measurements will be performed in patients sitting for 5 minutes prior to the evaluation. The 
patient should be instructed to take their blood pressure in the morning and repeat two more 
times for accuracy. 
 
 Dispense study drug and perform drug accountability after Cycle 1. 
 Photos will be taken of hands and feet for illustrative purposes. 
 
The following assessments should be performed on day 7 of the first cycle (+/- 3 days): 
 Physician visit 
 ECOG Status 
 Liver functions tests 
 Blood pressure 
 Assessment of AEs 
 Concomitant medications 
 Patient will have photos taken of hands and feet  
 
The following assessments should be performed on day 14 of the first cycle (+/- 3 days): 
 Physician visit 
 ECOG Status 
 Liver functions tests 
 Blood pressure 
 Assessment of AEs 
 Concomitant medications 
 Patient will have photos taken of hands and feet  
 
The following assessments should be performed on day 21 of the first cycle (+/- 3 days): 
 Physician visit 
 ECOG status 
 Liver Function Tests 
 Blood pressure 
 Assessment of AEs 
 Concomitant medications 

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 Patient will have photos taken of hands and feet  
 
The following assessments should be performed on day 7 of the second cycle (+/- 3 days): 
 Blood pressure 
 Assessment of AEs 
 Concomitant medications 
 
The following assessments should be performed on day 14 of the second cycle (+/- 3 days): 
 Physician visit 
 ECOG status 
 Liver function tests 
 Assessment of AEs 
 Concomitant medications 
 Blood pressure 
 
Tumor measurements (CT/MRI scans) will be conducted every 8 weeks. A PET scan is not 
acceptable for radiological evaluation. Throughout the study, the identical lesions to those 
identified and measured at baseline must be evaluated using the same technique, and 
preferably by the same investigator/radiologist. MRI/CT scans must meet the standard of care 
for the imaging of lesions in the respective organ system(s). Copies of all imaging (CT scans, 
MRI, X-rays, ultrasound, photographs of cutaneous lesions, etc.) performed for tumor 
assessment in all enrolled patients will be stored electronically at the site. 
 
7.1.2.3 End of Treatment Visit  
When a patient is taken off treatment, the following assessments should be performed within 
14 days (+/- 7 days) after study treatment has stopped: 
 Brief medical history and complete physical examination including review of all organ 
systems, examination of pertinent organ systems, vital signs (heart rate, blood pressure 
and temperature) and weight 
 ECOG performance status 
 A CBC with differential should be performed: RBC, hemoglobin, hematocrit, platelet 
count and WBC. WBC must include differential neutrophil, lymphocyte, monocyte, 
basophil and eosinophil counts. 
 Liver function tests 
 CEA testing 
 Creatinine 
 Urinalysis: appearance, pH, glucose, ketones, erythrocytes, leukocyte esterase, nitrite, 
bilirubin, urobilinogen, protein, creatinine, and protein/creatinine ratio. A microscopic 
analysis should be performed if the appearance is turbid, or if protein, leukocytes, 
erythrocytes or nitrite are out of normal range. 

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 Quantification of proteinuria by urinary protein/creatinine ratio on a random urine 
sample preferably taken at mid-morning. This should be reported as the ratio of 
concentrations of total urine protein (in mg/dl) to urine creatinine (in g/dl). 
 Measurement of GFR according to the MDRD (Modified diet in renal disease) 
abbreviated formula. 
 12-lead ECG 
 Concomitant medications 
 Toxicity and adverse events documentation 
 For patients who discontinue for reasons other than disease progression, tumor 
measurements and evaluation of tumor response of all measurable lesions should be 
performed according to RECIST criteria, version 1.1. 
 
7.1.2.4 Safety Follow-Up Visit 
Patients have to be evaluated for symptoms and adverse events in a visit 30 days (+/- 7 days) 
after permanently stopping study treatment. All AEs starting within 30 days after the last dose of 
study medication should be recorded. This contact may be completed via telephone. The following 
assessments should be performed: 
 Concomitant medications (including anti-cancer medication) 
 Toxicity and adverse events documentation 
 
7.1.2.5 Follow-up Period  
Physician visits: during follow up period, patients will be seen by physician every four weeks 
until disease progression, then every two months as per standard of care.  
Patients removed from study for unacceptable adverse events will be followed until resolution 
or stabilization of the adverse event. After the 30-day follow up period, no additional AE will be 
reported.  
 After the last contact of the Safety Follow-Up Visit (or after the EOT visit if the Safety 
Follow-Up Visit is not available), subjects will be off study.  
 Status of disease and date of progression (If tumor assessments are available for 
subjects who have not yet experienced PD, enter the follow-up tumor evaluations in the 
CRF until PD is diagnosed). 
 Date and cause of death while on study will be captured.  
 Documentation of all new cancer therapies. 
Telephone follow-up is acceptable. Site staff must use caution when contacting the subject’s 
family for this information, especially if they are no longer under the care of the investigator, so 
as to not inadvertently cause any distress to the family of a subject who is no longer alive.  

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Subjects who withdraw consent from study drug treatment should enter the Follow-up Period 
(unless consent to follow-up is specifically withdrawn). 
 
7.2 Population characteristics  
 
7.2.1 Demographic  
Baseline subject data pertaining to demographic information should be documented 
accordingly in the CRFs include the following: 
· Date of Birth (Age) 
· Sex 
· Race/ethnicity 
· Weight 
· Height 
 
7.2.2 Medical history 
Medical history findings (i.e. previous diagnoses, diseases or surgeries) meeting all criteria listed 
below will be collected: 
· Not pertaining to the study indication 
· Start before signing of the informed consent 
· Considered relevant to the study. 
Detailed instructions on the differentiation between (i) medical history and (ii) adverse events 
can be found in Section 7.5.1.1. 
 
7.2.3 Other baseline characteristics 
Baseline patient data relating to disease factors include: 
· Date of diagnosis and stage of CRC 
· ECOG performance status 
· Prior antineoplastic therapies 
· Laboratory results 
· ECG findings 
· Incidence of previous HFSR will be recorded as “yes/no”; no chart review is required.  
 
All medications and significant non-drug therapies taken within 14 days before study entry 
must be recorded in the CRF, including: 
· Medication trade name and dose 
· Reason for medication 
· Start Date and End date or if continuing at time of study entry. 
 
7.3 Efficacy  
  

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The primary endpoint of this trial is a safety endpoint. Efficacy measurement in this study will 
be assessed as a secondary endpoint, and will be measured by assessing progression-free 
survival (PFS). PFS will be evaluated based on RECIST v1.1 criteria, 20% progression or any new 
lesion. 
Measurements will be made at baseline and then every 8 weeks during the treatment period 
until progressive disease is documented, and also at the end of treatment visit if applicable. 
At baseline, information on all potential sites of tumor lesions should be obtained, at a 
minimum patients must have a radiologic examination of chest, abdomen and pelvis. 
Throughout the study period, the same lesions to those identified and measured at baseline 
must be evaluated using the same technique, the identical contrast agent and the same slice 
thickness. If additional lesions are suspected, the relevant anatomical regions should be 
evaluated by appropriate radiologic examinations. 
 
If a patient discontinues treatment prematurely before progression (e.g., due to toxicity), the 
investigator should perform a complete physical, laboratory and radiological assessment as 
soon as possible after study drug discontinuation. After treatment discontinuation, tumor 
assessments should be continued until progression, even if the patient receives other 
treatments. 
 
For the purposes of defining progressive disease, every effort should be made to obtain 
radiographical imaging at the defined timepoints. 
 
In cases where radiographic imaging is not possible, clinical progression may be used. Clinical 
progression is based on the judgment of the investigator. 
 
The complete list of variables to be analyzed for this study will be provided in the statistical 
analysis plan. 
 
7.5 Safety  
Although we are assuming that the co-administration of perindopril with regorafenib will 
mitigate HFSR symptoms, this may not be the case. Grade 3 HFSR rate will be evaluated after 
the first 10 patients have completed at least one cycle of regorafenib. If a significantly higher 
rate of grade 3 HFSR is seen in these first 10 patients i.e. Grade 3 is seen in more than 5 out of 
the 10 patients, the study will be discontinued.  
Safety variables for regorafenib are as follows: adverse events, laboratory changes 
(hematology, clinical chemistry and clinical urinalysis), changes in vital signs (blood pressure, 
heart rate, respiratory rate, temperature) and electrocardiogram (ECG). These will be measured 
as per standard of care for regorafenib, as per study schedule (Table 7). See more details from 
product monograph below. 

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Safety variables for perindopril can be obtained from the COVERSYL® Product Monograph. The 
most frequent adverse reactions observed with perindopril are: cough, dizziness, headache, 
asthenia, gastro-intestinal disorders (abdominal pain, nausea, dyspepsia). The most serious 
adverse reactions are: hypersensitivity reaction (angioedema), renal dysfunction (in high risk 
patients), pancreatitis, blood disorders (pancytopenia, agranulocytosis, and thrombocytopenia). 
During the long-term safety assessment in heart failure patients, the severe adverse events 
occurring with the highest frequency were angina pectoris and orthostatic hypotension. The 
most severe drug reactions from post-marketing experience were pancreatitis and blood 
disorders (pancytopenia, agranulocytosis, and thrombocytopenia).  
More detailed safety variables from the regorafenib monograph include: 
Regorafenib has been associated with an increased incidence of electrolyte abnormalities 
(including hypophosphatemia, hypocalcemia, hyponatremia and hypokalemia) and metabolic 
abnormalities (including increases in thyroid stimulating hormone, lipase and amylase). The 
abnormalities are generally of mild to moderate severity, not associated with clinical 
manifestations, and do not usually require dose interruptions or reductions. It is recommended 
to monitor biochemical and metabolic parameters during regorafenib treatment and to 
institute appropriate replacement therapy according to standard clinical practice if required. 
Dose interruption or reduction, or permanent discontinuation of regorafenib should be 
considered in case of persistent or recurrent significant abnormalities. 
Since drugs with anti-angiogenic properties may suppress wound healing, treatment with 
regorafenib should be stopped at least 2 weeks prior to scheduled surgery. The decision to 
resume regorafenib after surgery should be based on clinical judgment of adequate wound 
healing. Regorafenib should be discontinued in patients with wound dehiscence. 
Regorafenib may decrease heart rate. Caution should be observed in patients with a low heart 
rate at baseline (< 60 beats per minute), a history of syncope or arrhythmia, sick sinus 
syndrome, sinoatrial block, atrioventricular (AV) block, ischemic heart disease, or congestive 
heart failure.  
Patients with a history of ischemic heart disease should be monitored for clinical signs and 
symptoms of myocardial ischemia. In patients who develop new or acute onset cardiac 
ischemia and/or infarction regorafenib should be withheld until resolution. The decision to re-
initiate regorafenib therapy should be based on careful consideration of the potential benefits 
and risks of the individual patient. Regorafenib should be permanently discontinued if there is 
no resolution. 

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Regorafenib should be permanently discontinued in patients who develop gastrointestinal 
perforation or fistula. 
Treatment with regorafenib should be stopped in patients with severe or life threatening 
hemorrhage. Patients receiving warfarin should be closely monitored. 
For patients with observed worsening of liver function tests, dose modification (interruption, 
reduction) or discontinuation of regorafenib is recommended. 
In case of unexplained respiratory symptoms such as non-productive cough, dyspnea, crackles, 
or radiological pulmonary infiltrates, regorafenib should be discontinued until further 
pulmonary investigation excludes interstitial lung disease and pneumonitis. 
Patients with severe hepatic impairment will be excluded. Closely monitor patients with any 
hepatic impairment for adverse reactions, discontinuation of regorafenib, along with control of 
hypertension and supportive medical management of other symptoms is recommended. 
 
7.5.1 Adverse events  
 
7.5.1.1 Definitions  
Definition of adverse event (AE) 
In a clinical study, an AE is any untoward medical occurrence (i.e. any unfavorable and 
unintended sign [including abnormal laboratory findings], symptom or disease) in a patient or 
clinical investigation subject after providing written informed consent for participation in the 
study. Therefore, an AE may or may not be temporally or causally associated with the use of a 
medicinal (investigational) product. 
 
Surgeries and/or procedures are not Adverse Events – they are therapeutic measures for 
conditions that require such intervention. However, the condition requiring surgery may be an 
Adverse Event. Therefore, if surgical procedure is reported, the basic condition leading to 
surgery is entered as event respectively. 
 
Disease progression in itself should not be reported as an AE. However, if disease progression 
results in events that fit AE definition, these should be reported as such. 
In the following differentiation between medical history and AEs, the term “condition” may 
include abnormal physical examination findings, symptoms, diseases, laboratory, or ECG. 
 Conditions that started before signing of informed consent and for which no symptoms 
or treatment are present until signing of informed consent are recorded as medical 
history (e.g. seasonal allergy without acute complaints). 

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 Conditions that started before signing of informed consent and for which symptoms or 
treatment are present after signing of informed consent, at unchanged intensity, are 
recorded as medical history (e.g. allergic pollinosis). 
 Conditions that started or deteriorated after signing of informed consent will be 
documented as adverse events. 
In this study, investigators should also report signs and symptoms that are associated with 
progressive disease or the worsening of the existing cancer, and avoid using the AE term 
progressive disease. 
 
Definition of serious adverse event (SAE) 
 
An SAE is classified as any untoward medical occurrence that, at any dose, meets any of the 
following criteria (a – f): 
a. Results in death 
 
b. Is life-threatening 
The term ‘life-threatening’ in the definition refers to an event in which the 
patient 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 were more severe. 
 
c. Requires inpatient hospitalization or prolongation of existing hospitalization 
A hospitalization or prolongation of hospitalization will not be regarded as an 
SAE if at least one of the following exceptions is met: 
- The admission results in a hospital stay of less than 12 hours 
- The admission is pre-planned (i.e. elective or scheduled surgery arranged prior 
to the start of the study) 
- The admission is not associated with an AE (e.g. social hospitalization for 
purposes of respite care). 
However, it should be noted that invasive treatment during any hospitalization 
may fulfill the criterion of ‘medically important’ and as such may be reportable 
as an SAE dependent on clinical judgment. In addition, where local regulatory 
authorities specifically require a more stringent definition, the local regulation 
takes precedence. 
 
d. Results in persistent or significant disability / incapacity. Disability means a substantial 
disruption of a person’s ability to conduct normal life’s functions. 
 
e. Is a congenital anomaly / birth defect 
 
f. Is a medically important event as judged by the investigator 
 

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Investigators should also report any sign and symptom of progressive disease or worsening of 
the existing cancer as a separate SAE if the "serious" criteria are met. Investigators should avoid 
reporting progressive disease as the AE term. 
 
All of the following events are to be reported to the sponsor as SAEs following the reporting 
instructions: 
 Acute myeloid leukemia (AML) 
 myelodysplastic syndrome (MDS) occurring after chemotherapy for cancer 
 Additional primary cancers (including skin cancers) regardless of relationship to study 
treatment 
 
A Serious Adverse Event should be described as “Death” when the cause of death is unknown; 
otherwise “Fatal” must be entered as the outcome of the Adverse Event and/or reason for 
seriousness. 
All adverse events must be assessed by the investigator for severity and seriousness. 
7.5.1.2 Classifications for adverse event assessment  
CTCAE v4.03 criteria will be used for evaluation during the trial.  
The incidence of HFSR will be expressed as the number of patients out of study (N=34) who are 
experiencing HFSR of all grades. Severity will be evaluated using CTCAE v4.03 criteria. 
The incidence of hypertension will be expressed as the number of patients on study (N=34) who 
are experiencing hypertension of all grades. Severity will be evaluated using CTCAE v4.03 
criteria. 
All AEs will be assessed and documented by the investigator according to the categories 
detailed below. 
 
7.5.1.2.1 Seriousness 
For each AE, the seriousness must be determined according to the criteria given in Section 
7.5.1.1. 
 
7.5.1.2.2 Intensity 
The severity (or intensity) of adverse events should be graded according to NCI-CTCAE v4.03 
If no exact matching code is available in CTCAE v4.03 then use the following guide: 
CTC 1 = Mild AE, transient in nature and generally not interfering with normal activities 
CTC 2 = Moderate AE, sufficiently discomforting to interfere with normal activities 
CTC 3 = Severe AE, prevents normal activities 
CTC 4 = Life-threatening and/or disabling AE 
CTC 5 = Results in death (fatal) 
 

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7.5.1.2.3 Causal relationship 
The assessment of the causal relationship between an AE and the administration of treatment 
is a clinical decision based on all available information at the time of the completion of the CRF. 
The causality assessment should be done separately for each study treatment as detailed in the 
CRF. 
The assessment is based on the question whether there was a “reasonable causal relationship” 
to the study treatment in question. 
Possible answers are “yes” or “no” 
An assessment of “no” would include: 
1. The existence of a clear alternative explanation, e.g. mechanical bleeding at surgical 
site. 
or 
2. Non-plausibility, e.g. the subject is struck by an automobile when there is no 
indication that the drug caused disorientation that may have caused the event; 
cancer developing a few days after the first drug administration. 
 
An assessment of “yes” indicates that there is a reasonable suspicion that the AE is associated 
with the use of the study treatment. 
 Factors to be considered in assessing the relationship of the AE to study treatment 
include: 
 The temporal sequence from drug administration: The event should occur after the drug 
is given. The length of time from drug exposure to event should be evaluated in the 
clinical context of the event. 
 Recovery on drug discontinuation (de-challenge), recurrence on drug re-introduction 
(re-challenge) 
 Subject’s response after de-challenge or subjects response after re-challenge should be 
considered in the view of the usual clinical course of the event in question. 
 Underlying, concomitant, intercurrent diseases: Each event should be evaluated in the 
context of the natural history and course of the disease being treated and any other 
disease the subject may have. 
 Concomitant medication or treatment: The other drugs the subject is taking or the 
treatment the subject receives should be examined to determine whether any of them 
may be suspected to cause the event in question. 
 
7.5.1.2.4 Action taken with study treatment  
Any action on study treatment to resolve the AE is to be documented using the categories listed 
below. 
The study treatment action should be recorded separately for each study treatment as detailed 
in the CRF. 
 Drug withdrawn 
 Drug interrupted 

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 Dose reduced 
 Dose not changed 
 Dose increased 
 Not applicable 
 Unknown 
 
Treatments administered specifically because of the adverse event should be recorded using 
the categories below: 
 None 
 Remedial drug therapy 
 Other 
 
7.5.1.2.6 Outcome 
The outcome of the AE is to be documented as follows: 
 Recovered/resolved 
 Recovering/resolving 
 Recovered/resolved with sequelae 
 Not recovered/not resolved 
 Fatal 
 Unknown 
 
7.5.1.3 Assessments and documentation of adverse events  
All adverse events occurring after the subject has signed the informed consent must be fully 
recorded in the subject’s case record form. 
 
Documentation must be supported by an entry in the subject’s file. A laboratory test 
abnormality considered clinically relevant, e.g., causing the subject to withdraw from the study, 
requiring treatment or causing apparent clinical manifestations, or judged relevant by the 
investigator, should be reported as an adverse event. Each event should be described in detail 
along with start and stop dates, severity, relationship to investigational product, action taken 
and outcome. 
 
7.5.1.4 Reporting of serious adverse events  
The definition of serious adverse events (SAEs) is given in Section 7.5.1.1. 
  
Study investigators will be thoroughly instructed and trained on all relevant aspects of the 
investigator’s reporting obligations for SAEs. This information, including all relevant contact 
details, is summarized in the investigator site file. This information will be updated as needed. 
All SAEs occurring during the observation period defined in Section 7.5.1.3 must immediately 
(within 24 hours of the investigator’s awareness) be reported to Health Canada using the SAE 

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form, as well as to the Bayer Pharmacovigilance Department. Each SAE must be followed up 
until resolution or stabilization by submission of updated reports to the designated recipient. 
 
SAEs occurring after the protocol-defined observation period will be processed by the 
investigator according to all applicable regulations. 
 
In each case of a fatal or life-threatening reaction, the investigator must seek relevant follow-up 
information and must complete a follow-up report without delay to Bayer and Health Canada 
as described below. 
 
For all SAEs, the investigator is required to document in full, the course of the SAE and any 
therapy given, including any relevant findings/records in the report. 
 
It is not mandatory to report SAEs occurring after the protocol-defined observation period, 
however, at the investigator’s discretion these may be reported if considered potentially 
relevant. 
 
7.5.1.5 Responsibility for Reporting Serious Adverse Events to Bayer 
Each Investigator will report to Bayer Inc. Pharmacovigilance department any SAE or AE of 
Special Interest within 24 hours of becoming aware of such event, in order to allow Bayer to 
process and/or submit such safety information according to the mandated timelines to health 
authorities worldwide.  
Report event by email or fax to Bayer Inc. Pharmacovigilance: 
BAYER SAE REPORTING NUMBER 
Fax:  
1-866-232-0565 
Email: DSI_Canada@bayer.com 
7.5.1.6 Prompt Reporting of SAEs to Health Canada 
It is responsibility of the Sponsor of the study to report to Health Canada within 24 hours all 
serious adverse events (SAEs), as defined by applicable law or regulation regardless of 
attribution to the study drug and expectedness that are experienced by any Study subject 
receiving a study drug.  
The Health Canada number for SAE reporting at the Marketed Health Products Directorate 
(MHPD): 
Telephone: 1-866-234-2345 
Fax: 1-866-678-6789 
E-mail: cadrmp@hc-sc.gc.ca  

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Notification of the IECs / IRBs 
Notification of the IECs / IRBs about all relevant events (e.g. SAEs, suspected, unexpected, 
serious adverse reactions (SUSARs)) will be performed by the investigator according to all 
applicable regulations. 
 
Notification of the authorities 
The processing and reporting of all relevant events (e.g. SAEs, SUSARs) to the authorities will be 
done by the investigator according to all applicable regulations. 
 
7.5.1.5 Expected adverse events  
The most frequently observed adverse drug reactions (≥30%) in patients receiving regorafenib 
are described in the Stivarga ® (regorafenib) Product Monograph and include asthenia/fatigue, 
hand-foot skin reaction, diarrhea, decreased appetite and food intake, hypertension, dysphonia 
and infection.  
 
The most serious adverse drug reactions in patients receiving regorafenib are severe liver 
injury, hemorrhage, cardiac ischemia/infarction, hypertension, reversible posterior 
leukoencephalopathy syndrome (RPLS), Stevens-Johnson syndrome/toxic epidermal necrolysis, 
and gastrointestinal perforation or fistula). Of these, hypertension and hemorrhage have been 
observed most frequently. 
 
The most frequent adverse reactions observed with perindopril are described in the COVERSYL® 
Product Monograph and include: cough, dizziness, headache, asthenia, gastro-intestinal 
disorders (abdominal pain, nausea, dyspepsia).  
 
The most serious adverse reactions from perindopril are: hypersensitivity reaction 
(angioedema), renal dysfunction (in high risk patients), pancreatitis, blood disorders 
(pancytopenia, agranulocytosis, and thrombocytopenia).  
 
During the long-term safety assessment in heart failure patients, the severe adverse events 
occurring with the highest frequency were angina pectoris and orthostatic hypotension.  
 
The most severe drug reactions from post-marketing experience were pancreatitis and blood 
disorders (pancytopenia, agranulocytosis, and thrombocytopenia). 
 
7.5.1.6 Adverse events of special safety interest  
Regorafenib is an investigational drug and current knowledge of the adverse events associated 
with this compound is limited. 
 

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As with any new chemical entity, there is always potential for unexpected adverse events, 
including hypersensitivity reactions. 
 
Based on data from Phase I/II studies with regorafenib and from current knowledge of the 
pharmacological properties of other small molecule TKIs in this drug class, as soon as there is 
reasonable suspicion of any of the following AEs, the investigator should immediately notify 
Bayer as outlined in section 7.5.1.4. These events are: 
 Acute renal failure (CTC AE Grade 3) or severe proteinuria (CTC AE Grade 3) 
 Interstitial lung disease 
 Acute cardiac failure 
 Clinically significant bleeding (CTCAE Grade 3) 
 Stevens Johnson Syndrome 
 Erythema multiforme 
 
7.5.2 Pregnancies  
The investigator must report to the sponsor any pregnancy occurring in a study subject, or in his 
partner, during the subject’s participation in this study. The report should be submitted within 
the same timelines as an SAE, although a pregnancy per se is not considered an SAE. 
 
For a study subject, the outcome of the pregnancy should be followed up carefully, and any 
abnormal outcome of the mother or the child should be reported. 
 
For the pregnancy of a study subject’s partner, all efforts should be made to obtain similar 
information on course and outcome, subject to the partner’s consent. 
 
For all reports, the forms provided are to be used. 
 
7.5.3 Further safety 
An isolated laboratory abnormality that is assigned grade 4, according to CTC definition, is not 
reportable as an SAE; unless the investigator assesses that the event meets standard ICH 
criteria for an SAE. CTC grade 4 baseline laboratory abnormalities that are part of the disease 
profile should not be reported as an SAE, specifically when they are allowed or not excluded by 
the protocol inclusion/exclusion criteria. If an investigator is in doubt about the applicable 
reporting obligations, he/she should consult with the study monitor for the Sponsor. CTC grade 
4 lab abnormalities will be documented in the lab data and will be reviewed on a regular basis. 
 
 

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8. Statistical methods and determination of sample size 
 
8.1 General considerations 
Statistical analyses will be performed using SAS 9.3. Demographic and other baseline 
characteristics will be listed and summarized.  Qualitative data will be summarized using 
frequencies and percentages and quantitative data will be summarized by appropriate 
descriptive statistics (mean, standard deviation, median, minimum and maximum).  Secondary 
safety variables will be summarized using descriptive statistics and exploratory graphical 
presentations of the data.  
Duration of study treatment exposure, cumulative dose and dose intensity will be summarized.  
The number of patients with dose changes/interruptions and withdrawals will be presented 
along with reasons for the dose change. 
Variables related to tumor response and disease progression will be evaluated based on 
investigator assessed RECIST criteria, version 1.1. In cases where radiographic imaging is not 
possible, clinical progression may be used. Clinical progression is based on the judgment of the 
investigator. 
Toxicity related variables will be evaluated using the CTCAE v4.03 criteria. 
Biomarker and pharmacokinetics will not be performed in this study and no subgroup analysis 
will be performed. 
8.2 Analysis sets  
The primary analysis set will consist of all evaluable patients.  An evaluable patient is defined as 
a patient who meets all inclusion/exclusion and who has received at least one dose of study 
medication.  The safety set will consist of all patients who receive at least one dose of study 
medication. 
8.3 Primary Objective 
The primary objective is to determine the proportion of patients that have any grade HFSR 
toxicity when treated with a combination of regorafenib and perindopril. 
8.3.1 Primary Endpoint 
The primary endpoint of this study is proportion of patients with any grade HFSR toxicity.  
Toxicities will be evaluated used CTCAE v4.03 criteria. 
8.3.2 Statistical hypothesis and method of analysis 
The primary analysis will be a comparison of the proportion of patients with any grade HFSR 
toxicity to 47% using the normal approximation z-test statistic and 2-sided 5% significance level.  
The statistical hypotheses are 

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H0: P = 0.47 versus H1: P ≠ 0.47 
where P is the proportion of any grade HFSR toxicity.  
The study includes a single interim safety analysis after 10 patients have completed the study 
medication.   
The proportion of patients having worst grade 3 HFSR toxicity will be determined along with the 
95% confidence interval. 
8.4 Secondary Objectives 
The secondary objectives are to evaluate the time to development of worst grade 3 HFSR 
toxicity, proportion of all grades of hypertension, proportion of all grade toxicities and 
progression-free survival.  All toxicities will be evaluated using CTCAE v4.03.  
8.4.1 Time to worst grade 3 HFSR toxicity 
Time to worst grade 3 HFSR toxicity is defined as the time (days) from start date of study drug 
to date of first documented grade 3 HFSR toxicity and will be calculated only for patients who 
had a HFSR toxicity grade 3. 
8.4.2 Progression-free survival 
Progression-free survival is defined as the time (days) from start date of study drugs to date of 
first documented disease progression (radiological or clinical) or death due to any cause, if 
death occurs before progression is documented. The actual date that the tumor scan was 
performed will be used for this calculation. Progression-free survival for patients without 
disease progression or death at the time of the final analysis will be censored at the last date of 
tumor evaluation. Progression-free survival for patients who have no tumor assessments after 
baseline will be censored at 1 day. Missing or non-evaluable tumor assessments will not be 
taken into account in the calculation of PFS. Every effort will be made to obtain radiologic 
imaging for documentation of progression. In those cases where patients are unable to obtain 
radiologic examinations due to deterioration of medical condition, the date of clinical 
progression will be used for the determination of the date of progression.  The PFS distribution 
will be presented descriptively using Kaplan-Meier curves.  The median PFS from the Kaplan-
Meier distribution will be determined along with the associated 95% confidence interval. 
8.5 Safety  
Safety variables are as follows: adverse events, the number of laboratory values that fall 
outside of pre-determined ranges (hematology, clinical chemistry and clinical urinalysis), 
changes in vital signs (blood pressure, heart rate, respiratory rate, temperature) and 
electrocardiogram (ECG). 
 

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All adverse events whether considered drug-related or not, will be reported with start/stop 
dates, action taken, whether treatment was discontinued, any corrective measures taken, and 
outcome. For all events, the relationship to treatment and the severity of the event will be 
determined by the Investigator, using the terms and definitions given in Section 5.1. 
 
A Treatment-emergent adverse event is defined as any event arising or worsening after the 
start of study drug administration until 30 days after the last study medication 
 
8.6 Planned interim analyses  
A single interim analysis is planned to be performed at the point that 10 patients have 
completed their first cycle of study treatment. This will be to determine if the study should 
continue.  The study will be discontinued if 5 out of the first 10 patients exhibit a Grade 3 HFSR.  
The lower bound limit of the 95% confidence interval would be 18.7% which is higher than the 
17% of patients who experienced HFSR grade 3 severity in the CORRECT trial.  
8.7 Determination of sample size  
A sample size of 34 patients achieves 80% power to detect a 50% reduction in all grades of 
HFSR toxicity (from 47% as seen in the CORRECT trial to 24%) using the normal approximation 
to the binomial distribution and a 2-sided 5% significance level. 
 
9. Data handling and quality assurance  
9.1 Data recording  
Designated investigator staff will enter the data required by the protocol in a specific study data 
collection tool.  Designated investigator staff will not be given access until they have been 
trained.  The data entered will be reviewed by investigational staff for completeness and 
accuracy and will provide instruction for any required corrections or additions to the data.  
Obvious errors will be corrected by the designated investigator data entry staff.  Validation 
program checks for data discrepancies will allow the data to be confirmed and corrected before 
analysis.  
9.2 Monitoring  
In accordance with applicable regulations, GCP, and sponsor’s procedures, monitors will 
contact the site prior to the start of the study to review with the site staff the protocol, study 
requirements, and their responsibilities to satisfy regulatory, ethical, and sponsor’s 
requirements. 
When reviewing data collection procedures, the discussion will also include identification and 
documentation of source data items. 
 

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The sponsor/designee will monitor the site activity to verify that the: 
 Data are authentic, accurate and complete 
 Safety and rights of subjects are being protected 
 Study is conducted in accordance with the currently approved protocol (including study 
treatment being used in accordance with the protocol) 
 Any other study agreements, GCP, and all applicable regulatory requirements are met. 
The investigator and the head of the medical institution (where applicable) agrees to allow the 
monitor direct access to all relevant documents. 
 
9.3 Data processing 
Clinical data management will be performed in accordance with investigator’s standards and 
data cleaning procedures. This is applicable for data recorded on CRF as well as for data from 
other sources (e.g. IVRS, laboratory, ECG). 
 
For data coding (e.g. AEs, medication), internationally recognized and accepted dictionaries will 
be used. 
 
9.4 Audit and inspection 
To ensure compliance with GCP and regulatory requirements, a member of the sponsor’s 
quality assurance unit may arrange to conduct an audit to assess the performance of the study 
at the study site and of the study documents originating there. The investigator/institution will 
be informed of the audit outcome. 
 
In addition, inspections by regulatory health authority representatives and IEC(s)/IRB(s) are 
possible. The investigator should notify the sponsor immediately of any such inspection. 
The investigator/institution agrees to allow the auditor or inspector direct access to all relevant 
documents and allocate his/her time and the time of his/her staff to the auditor/inspector to 
discuss findings and any issues. Audits and inspections may occur at any time during or after 
completion of the study. 
 
9.5 Archiving  
Essential documents shall be archived safely and securely in such a way that ensures that they 
are readily available upon authorities’ request. 
 
Patient (hospital) files will be archived according to local regulations and in accordance with the 
maximum period of time permitted by the hospital, institution or private practice. Where the 
archiving procedures do not meet the minimum timelines required by the sponsor, alternative 
arrangements must be made to ensure the availability of the source documents for the 
required period. 
 

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The investigator/institution notifies the sponsor if the archival arrangements change (e.g. 
relocation or transfer of ownership).The investigator site file is not to be destroyed without the 
sponsor’s approval. 
 
The investigator’s contract will contain all regulations relevant for the study center. 
 
10. Premature termination of the study  
 
The study will be discontinued if 5 of the first 10 patients exhibit a Grade 3 or higher HFSR. Note 
that in the CORRECT trial, 47% of patients experienced HFSR of all grades with 17% 
experiencing HFSR with grade 3 severity.    
(Note: Given the small patient numbers (n=10) for the interim analysis and using the expected 
number from CORRECT, there would be ~2 expected with HFRS at Grade 3.  If you have n≥3 to 
discontinue the study, that may be problematic given a single patient can have a significant 
impact at such low numbers. Increasing it to 5 would indicate there is a signal suggesting a ≥2 
fold increase in grade 3 HFSR events and study should be discontinued.) 
The sponsor/Investigator has the right to close this study at any time, which may be due but not 
limited to the following reasons: 
 If risk-benefit ratio becomes unacceptable owing to, for example, 
o Safety findings from this study (e.g. SAEs) 
o Results of any interim analysis 
o Results of parallel clinical studies 
o Results of parallel animal studies (on e.g. toxicity, teratogenicity, carcinogenicity 
or reproduction toxicity). 
 If the study conduct (e.g. recruitment rate; drop-out rate; data quality; protocol 
compliance) does not suggest a proper completion of the trial within a reasonable time 
frame. 
 
For any of the above closures, the following applies: 
 Closures should occur only after consultation between involved parties. 
 All affected institutions (e.g. IEC(s)/IRB(s); competent authority (ies); study center; head 
of study center) must be informed as applicable according to local law. 
 All study materials (except documentation that has to remain stored at site) must be 
retained as per BCCA regulations.  
 
In case of study closure, ongoing subjects, including those in post study follow-up, must be 
taken care of in an ethical manner. 
 

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Details for individual subject's withdrawal can be found in Section 5.2.1. 
 
 
 

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11. Ethical and legal aspects 
 
11.1 Ethical and legal conduct of the study 
The procedures set out in this protocol, pertaining to the conduct, evaluation, and 
documentation of this study, are designed to ensure that the sponsor and investigator abide by 
Good Clinical Practice (GCP) guidelines and under the guiding principles detailed in the 
Declaration of Helsinki. The study will also be carried out in keeping with applicable local law(s) 
and regulation(s). 
 
Documented approval from appropriate IEC(s)/IRBs will be obtained for the center before start 
of the study, according to GCP, local laws, regulations and organizations. When necessary, an 
extension, amendment or renewal of the EC/IRB approval must be obtained. The 
Sponsor/Investigator will ensure a list of the EC/IRB members involved in the vote, and a 
statement to confirm that the EC/IRB is organized and operates according to GCP and 
applicable laws and regulations, is filed with the study documents. 
 
Strict adherence to all specifications laid down in this protocol is required for all aspects of 
study conduct; the investigator may not modify or alter the procedures described in this 
protocol. However, the Sponsor/Investigator may implement a deviation from, or a change of, 
the protocol to eliminate an immediate hazard(s) to the trial subjects without prior IEC/IRB 
approval/favorable opinion. As soon as possible, the implemented deviation or change, the 
reasons for it and if appropriate the proposed protocol amendment should be submitted to the 
IEC/IRB. 
 
Any deviations from the protocol must be explained and documented by the investigator. 
Details on discontinuation of the study can be found in Section 10. 
 
11.2 Subject information and consent  
All relevant information on the study will be summarized in an integrated subject information 
sheet and informed consent form provided by the sponsor/investigator. 
 
Based on this subject information sheet, the investigator or designee will explain all relevant 
aspects of the study to each subject / legal representative or proxy consenter (if the subject is 
under legal protection), prior to his/her entry into the study (i.e. before any examinations and 
procedures associated with the selection for the study are performed or any study-specific data 
is recorded on study-specific forms). 
 
The investigator will also mention that written approval of the IRB/IEC has been obtained. 
  

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Each subject / legal representative or proxy consenter will have ample time and opportunity to 
ask questions and will be informed about the right to withdraw from the study at any time 
without any disadvantage and without having to provide reasons for this decision. 
 
Only if the subject / legal representative or proxy consenter voluntarily agrees to sign the 
informed consent form and has done so, may he/she enter the study. Additionally, the 
investigator and other information provider (if any) will personally sign and date the form. The 
subject / legal representative or proxy consenter will receive a copy of the signed and dated 
form. 
 
The signed informed consent statement is to remain in the investigator site file or, if locally 
required, in the patient’s note/file of the medical institution. 
 
In the event that informed consent is obtained on the date that baseline study procedures are 
performed, the study record or subject’s clinical record must clearly show that informed 
consent was obtained prior to these procedures. 
 
If the patient is not capable of providing a signature, a verbal statement of consent can also be 
given in the presence of an impartial witness (independent of the sponsor and the investigator). 
This is to be documented by a signature from the informing physician as well as by a signature 
from the witness. 
 
The informed consent form and any other written information provided to subjects / legal 
representatives or proxy consenters will be revised whenever important new information 
becomes available that may be relevant to the subject’s consent, or there is an amendment to 
the protocol that necessitates a change to the content of the subject information and / or the 
written informed consent form. The investigator will inform the subject / legal representative 
or proxy consenter of changes in a timely manner and will ask the subject to confirm his/her 
participation in the study by signing the revised informed consent form. Any revised written 
informed consent form and written information must receive the IEC/IRB’s approval / favorable 
opinion in advance of use. 
 
11.3 Publication policy 
BAYER acknowledges the interest of the study sponsors to publish the findings of the STUDY 
and is supportive towards such activity. 
To ensure against inadvertent disclosure of unprotected INVENTIONS and CONFIDENTIAL 
INFORMATION, the study sponsors agree to comply to the following terms on publication: 
Study Sponsors shall provide to BAYER any proposed publication or oral presentation relating to 
the STUDY or STUDY DRUG or the RESULTS (hereinafter called "PUBLICATION") at least sixty 

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(60) days prior to the intended submission or presentation of the PUBLICATION in order to 
allow BAYER to review it. 
If BAYER does not notify Study Sponsors within sixty (60) days of BAYER's receipt of the 
intended PUBLICATION, Study Sponsors shall be free to publish. 
BAYER may recommend any changes to the PUBLICATION it reasonably believes are necessary 
for scientific purposes. Study Sponsors agree that the implementation of such recommended 
changes shall not be unreasonably refused. 
If BAYER informs Study Sponsors that such PUBLICATION could be expected to have an adverse 
effect on the confidentiality of any of BAYER'S CONFIDENTIAL INFORMATION, Study Sponsors 
shall prevent the PUBLICATION, unless the CONFIDENTIAL INFORMATION can be deleted from 
the PUBLICATION without detriment effect on the scientific correctness of the PUBLICATION.  
If the PUBLICATION could in BAYER’S view have an adverse effect on the ability to obtain patent 
protection for any INVENTION, BAYER may request a delay of the PUBLICATION for a 
reasonable period of time in order to permit the preparation and filing of any desired patent 
application by or on behalf of BAYER, such period, however, not to exceed ninety (90) days.  
Study Sponsors shall include a statement in any PUBLICATION that creation of the data was 
supported in part by BAYER.  
The Study Sponsors will make the information regarding the study protocol publicly available on 
the internet at www.clinicaltrials.gov. 
 
11.4 Compensation for health damage of subjects / insurance 
BCCA maintains clinical trial insurance coverage for this study in accordance with the laws and 
regulations of the province and country in which the study is performed. 
 
11.5 Confidentiality 
All records identifying the subject will be kept confidential and, to the extent permitted by the 
applicable laws and/or regulations, will not be made publicly available. 
 
Subject names will be kept confidential. Only the subject number and initials will be recorded in 
the CRF.   
 
Study findings stored on a computer will be stored in accordance with local data protection 
laws. As part of the informed consent process, the subjects will be informed in writing that 
representatives of the sponsor, IEC/IRB, or regulatory authorities may inspect their medical 
records to verify the information collected, and that all personal information made available for 
inspection will be handled in strictest confidence and in accordance with local data protection 
laws. 

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If the results of the study are published, the subject’s identity will remain confidential. 
 
The investigator will maintain a list to enable subjects to be identified. 
 

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12. Reference list  
 
Anderson TJ, Elstein E, Haber H, et al: Comparative study of ACE-inhibition, angiotensin II 
antagonism, and calcium channel blockade on flow-mediated vasodilation in patients with 
coronary disease (BANFF study). Journal of the American College of Cardiology 35:60-66, 2000 
 
Canadian Cancer Society’s Advisory Committee on Cancer Statistics. Canadian Cancer Statistics 
2014. Toronto, ON: Canadian Cancer Society; 2014. ISSN 0835-2976 
 
Ceconi C, Fox KM, Remme WJ, et al: ACE inhibition with perindopril and endothelial function. 
Results of a substudy of the EUROPA study: PERTINENT. Cardiovasc Res 73:237-46, 2007a 
 
Ceconi C, Francolini G, Olivares A, et al: Angiotensin-converting enzyme (ACE) inhibitors have 
different selectivity for bradykinin binding sites of human somatic ACE. Eur J Pharmacol 577:1-
6, 2007b 
 
COVERSYL® Product Monograph - perindopril erbumine tablets. SERVIER CANADA INC. 
Submission Control No: 167160, September 27, 2013. 
 
Eisenhauer EA, Therasse P, Bogaerts J, Schwartz LH, Sargent D, Ford R, Dancey J, Arbuck S, 
Gwyther S, Mooney M et al: New response evaluation criteria in solid tumours: revised RECIST 
guideline (version 1.1). European journal of cancer 2009, 45(2):228-247. 
 
Erber R et al. Combined inhibition of VEGF and PDGF signaling enforced tumor vessel regression 
by interfering with pericyte mediated endothelial cell survival mechanism FASEB J 2004; 18; 
338.  
 
Grothey A, Van Cutsem E, Sobrero A, et al: Regorafenib monotherapy for previously treated 
metastatic colorectal cancer (CORRECT): an international, multicentre, randomised, placebo-
controlled, phase 3 trial. Lancet 381:303-12, 2013 
 
Grothey A, George S, van Cutsem E, Blay JY, Sobrero A, Demetri GD: Optimizing treatment 
outcomes with regorafenib: personalized dosing and other strategies to support patient care. 
Oncologist 2014, 19(6):669-680. 
 
Li J, Qin S, Yau T et al. CONCUR: a randomized double-blind placebo controlled phase 3 study of 
regorafenib monotherapy in Asian patients with previously treated metastatic colorectal cancer 
(mCRC). Ann Oncol 2014; 25 (Suppl 2): ii114–ii115. 

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Miller KK, Gorcey L, McLellan BN: Chemotherapy-induced hand-foot syndrome and nail 
changes: A review of clinical presentation, etiology, pathogenesis, and management, J Am Acad 
Dermatol. 2014 May 1. pii: S0190-9622(14)01246-8. doi: 10.1016/j.jaad.2014.03.019. 
 
Robert C et al. Cutaneous side effects of kinase inhibitors and blocking antibodies. Lancet Oncol 
2005; 6: 491.  
Stivarga ® (regorafenib) Product Monograph. Bayer. October 2, 2013.  
 
Taddei S: New evidence for entothelial protection. Medicographia, a Servier publication Vol 
34:17-23, 2012 
 
Zhuo JL, Mendelsohn FA, Ohishi M: Perindopril alters vascular angiotensin-converting enzyme, 
AT(1) receptor, and nitric oxide synthase expression in patients with coronary heart disease. 
Hypertension 39:634-8, 2002 
 
 
 
 

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13. Protocol amendments  
Any amendments will be inserted into this section. 
 
Summary of Changes: 
Protocol Version 1.2 dated 03 June 2016 
 Correction of minor typographical errors and formatting errors in the document. 
 Clarifications to the protocol by reconciling protocol text with tabulated overview. 
 Removal of the inclusion criteria CEA ≤ 3 times the ULN to reflect clinical practice. 
 Removal of required Screening cardiac function test (i.e. echocardiogram or MUGA 
scan) since there is no Exclusion/Inclusion criteria pertaining to results of a cardiac 
function test. Furthermore, as regorafenib has no cardiac toxicity, a cardiac function 
test is not required for this study. 
 Removal of ECOG assessment and liver function tests at C2D7 Visit since no 
Physician Visit is scheduled. 
 Clarification that blood pressure measurement is required at C2D14. 
 Clarification that 12-lead ECG is required at D1 of each cycle and at EOT visit. 
 Clarification that urinalysis is required at EOT visit. 
 Removal of ECOG assessment and blood pressure measurement at Safety Follow-up 
Visit since this visit may be conducted via telephone. 
Protocol Version 2.0 dated 20 September 2016 
 Correction of minor typographical errors and formatting errors in the document. 
 Update of Exclusion Criteria pertaining to previous or concurrent cancers. As this study 
is meant to be quite pragmatic, it is overly restrictive to require participants to have no 
other cancer within 5 years prior to study enrollment. Instead, only patients with a 
concurrent cancer requiring treatment that is distinct in primary site or histology from 
colorectal cancer may not be enrolled. 
 Addition of Exclusion Criteria: Patients receiving systemic anticancer therapy including 
cytotoxic therapy, signal transduction inhibitors, immunotherapy, hormonal therapy and 
experimental or approved therapies during this trial or within 14 days before starting to 
receive study medication. Chemotherapy/radiation is cleared by 14 days and most 
patients need treatment quickly when they progress. The 30 days was from a global 
strict randomized trial CORRECT. 
 Clarification of Exclusion Criteria pertaining to proteinuria. 24-hour urine protein test is 
only required if protein/creatinine ratio on a random urine sample preferably taken at 

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mid-morning results in a ratio greater than 30g/mol Creat. The 24-hour urine protein 
test should be performed to confirm Grade 3 or higher proteinuria (>3.5g/24 hours). 
Proteinuria is usually from bevacizumab which is given in first line. In PARICCA, 
participants receive regorafenib for third- or fourth-line treatment. Proteinuria is 
screened with urinalysis and the 24-hour urine protein test needs only to be done if 
>30g/mol. 
 Clarification of Screening procedures in Section 7.1.2.1 Screening relating to 
quantification of proteinuria. If UPCR is found to be greater than ULN, then a 24-hour 
urine protein test should be performed to confirm Grade 3 or higher proteinuria 
(>3.5g/24 hours). 
Proteinuria is usually from bevacizumab which is given in first line. In PARICCA, 
participants receive regorafenib for third- or fourth-line treatment. Proteinuria is 
screened with urinalysis and the 24-hour urine protein test needs only to be done if 
>30g/mol. 
 Clarification of photography procedures in Section 7.1 Schedule of procedures. In 
previous version of protocol, it was not detailed that a total of approximately 8 
photographs will be taken of the dorsal and plantar/palmer surfaces of each of the 
participant’s hands and feet at each specified interval. The labeling procedures are also 
clarified in this amendment. 
 On Day 1 of each cycle, the participant is to receive a Rash Diary to complete (Section 
7.1.2.2 Treatment). In order to more adequately document the onset of rash during 
treatment, participants will be asked to complete a Rash Diary during each treatment 
cycle. Information collected through this Rash Diary will assist in assessing time to 
development of HFSR toxicity. The Rash Diary will be collected by the designated study 
personnel upon completion of the diary, following each treatment cycle. 
Protocol Version 2.1 dated 07 December 2016 
 Correction of minor typographical errors and formatting errors in the document. 
 Change of Inclusion Criteria relating to alanine transaminase (ALT), aspartate 
aminofransferase (AST), and alkaline phosphatase (ALP). Patients with liver involvement 
of their cancer may be included if ALT, AST, and ALP are ≤5 times ULN. The rationale is 
to align with the eligibility in the CORRECT phase III trial of regorafenib. 
 7.1 Schedule of procedures (Page 43) – Clarification of the liver function tests required 
every week for the first cycle, every two weeks for the second cycle, at the start of each 
cycle after this, and at follow up visit.  
Protocol Version 2.2 dated 08 February 2017 

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 List of abbreviations: Addition of ACE (angiotensin converting enzyme) and ARB 
(angiotensin receptor blocker). 
 Clarification of exclusion criterion relating to pre-existing anti-hypertensive treatment. 
The exclusion criterion was: “Patient selection to exclude patients with pre-existing anti-
hypertension treatment, in particular other ACE inhibitors….” The exclusion criterion is 
now: “Patients with pre-existing anti-hypertensive treatment with an ACE inhibitor or 
angiotensin receptor blocker (ARB) are to be excluded….” This update makes it clearer 
that patients may still be eligible for participation if they have controlled hypertension 
using an anti-hypertensive that is not an ACE inhibitor or ARB. 
14. Appendices  
 
14.1 RECIST 
Response and progression will be evaluated in this study using the RECIST criteria version 1.1. 
(Eisenhauer EA  et al. 2009)Changes in only the largest diameter (unidimensional measurement) 
of the tumor lesions are used. 
 
Measurable Disease:  
Tumor lesions: Measurable lesions are defined as those that can be accurately measured in at 
least one dimension (longest diameter to be recorded) with a minimum size of 
 10 mm by CT scan (CT scan slice thickness no greater than 5 mm) or MRI. If scans with 
slice thicknesses greater than 5mm are used, the minimum size should be twice the slice 
thickness. 
 20 mm by chest x-ray 
 10 mm caliper measurement by clinical examination (lesions which cannot be accurately 
measured with calipers should be recorded as non-measurable 
 
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 no greater than 5 mm). At baseline and in follow-up, only the short axis 
will be measured and followed. 
 
Lytic bone lesions or mixed lytic-blastic lesions, with identifiable soft tissue components that can 
be evaluated by CT or MRI, can be considered as measurable lesions if the soft tissue 
component meets the definition of measurability. 
 
All tumor measurements must be recorded in millimetres (or decimal fractions of centimetres). 
Tumor lesions situated in a previously irradiated area are not considered measurable unless 
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Non-Measurable Disease: All other lesions (or sites of disease), including small lesions (longest 
diameter <10 mm or pathological lymph nodes with ≥10 to < 15mm short axis) are considered 
non-measurable disease. Leptomeningeal disease, ascites, pleural/pericardial effusions, 
lymphangitic involvement of skin or lung, inflammatory breast disease, abdominal masses/ 
abdominal organomegaly identified by physical examination that is not measurable by 
reproducible imaging techniques and blastic bone lesions are all non-measurable. 
 
Target Lesions: All measurable lesions up to a maximum of 2 lesions per organ and 5 lesions in 
total, representative of all involved organs should be identified as target lesions and be 
recorded and measured at baseline. These 5 lesions should be selected on the basis of their size 
(lesions with the longest diameter), be representative of all involved organs and should be 
suitable for reproducible repeated measurements. 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. The baseline sum diameters will be used as reference to further 
characterize any objective tumor regression of the measurable dimension of the disease. If 
there are >5 measurable lesions, those not selected as target lesions will be considered 
together with non-measurable disease as non-target lesions. 
 
Non-target Lesions: All non-measurable lesions (or sites of disease) plus any measurable lesions 
over and above the 5 listed as target lesions. Measurements are not required but these lesions 
should be noted at baseline and should be followed as “present”, “absent” or in rare cases 
“unequivocal progression”. 
 
Best Response 
All subjects will have their BEST RESPONSE on study classified as outlined below: 
 
Complete Response (CR): Disappearance of all clinical and radiological evidence of tumor (both 
target and non-target). Any pathological lymph nodes (whether target or non-target) must have 
a reduction in short axis to < 10mm. 
 
Partial Response (PR): At least a 30% decrease in the sum of diameters of target lesions taking 
as reference the baseline sum, no unequivocal progression of existing non-target lesions and no 
appearance of new lesions. 
 
Stable Disease (SD): Steady state of disease. Neither sufficient shrinkage to qualify for PR nor 
sufficient increase to qualify for PD, no unequivocal progression of existing non-target lesions 
and no appearance of new lesions. 
 
Progressive Disease (PD): At least a 20% increase in the sum of diameters of target lesions 
taking as reference the smallest sum on study (this includes the baseline sum if that is the 
smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate 

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an absolute increase of at least 5mm. Unequivocal progression of existing non-target lesions or 
the appearance of one or more new lesions will also constitute progressive disease. 
Table 1: Response for patients with Target and Non-Target Lesions 
 
Target Lesions 
Non-Target 
Lesions 
New Lesions 
Overall 
Response 
Best Response 
for this category 
also requires 
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 
documented at 
least 6 wk. from 
enrollment 
Not all 
evaluated  
Non-PD  
No 
NE 
 
 
PD 
Any 
Yes or No 
PD 
 
Any 
PD 
Yes or No 
PD 
 
Any 
Any 
Yes 
PD 
 
Subjects 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 the objective 
progression even after discontinuation of treatment. 
 
Table 2: Response for patients with Non-Target Lesions only 
 
Non-Target 
Lesions 
New Lesions 
Overall Response 
CR 
No 
CR 
Non-CR/Non-PD  
No 
Non-CR/non-PD* 
Not evaluated  
No  
NE 
Unequivocal PD  
Yes or No  
PD 
Any 
Yes 
PD 
 * Non-CR/non-PD is preferred over “stable disease” for non-target disease. 
  
 
 

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Methods of Measurement 
The same method of assessment and the same technique should be used to characterize each 
identified and reported lesion at baseline and during follow-up. 
 
Clinical Lesions - Clinical lesions will only be considered measurable when they are 
superficial(e.g. skin nodules, palpable lymph nodes) and ≥ 10mm diameter as assessed using 
calipers. For the case of skin lesions, documentation by colour photography including a ruler to 
estimate the size of the lesion is recommended. 
 
Chest X-ray - Lesions on chest X-ray are acceptable as measurable lesions when they are clearly 
defined and surrounded by aerated lung. However, chest CT is preferable. 
 
CT / MRI - CT is the best currently available and reproducible methods to measure target 
lesions selected for response assessment. CT scans should be performed with cuts of 5 mm or 
less in slice thickness. 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. This applies 
to the chest, abdomen and pelvis. Head & neck and extremities usually require specific 
protocols. 
 
Ultrasound - Ultrasound is not useful in assessment of lesion size and should not be used as 
method of measurement. If new lesions are identified by ultrasound in the course of the study, 
confirmation by CT or MRI is advised. 
 
Endoscopy / Laparoscopy - The utilization of these techniques for objective tumor evaluation is 
not advised. 
 
Cytology / Histology - These techniques can be used to differentiate between PR and CR in rare 
cases (for example, residual lesions in tumor types such as germ cell tumors, where known 
residual benign tumors can remain). The cytological confirmation of the neoplastic origin of any 
effusion that appears or worsens during treatment when the measurable tumor has met 
criteria for response or stable disease is mandatory to differentiate between response or stable 
disease (an effusion may be a side effect of the treatment) and progressive disease. 

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14.2 NCI Common Terminology Criteria for Adverse Events 
 
This study will utilize NCI Common Terminology Criteria for Adverse Events for toxicity and 
serious adverse event reporting. Version 4.031 will be used. Version 3.0 was used in the 
CORRECT trial, however Version 4.03 will be used for comparison to future studies.  
  
 
 
  
 
                                                          
1 http://evs.nci.nih.gov/ftp1/CTCAE/CTCAE_4.03_2010-06-14_QuickReference_5x7.pdf 
 

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14.3 New York Heart Association Functional Classification 
 
Class 
NYHA Functional Classification 
 
I 
Subjects have cardiac disease but without the resulting limitations of physical 
activity. Ordinary physical activity does not cause undue fatigue, palpitation, 
dyspnea, or anginal pain. 
 
II 
Subjects have cardiac disease resulting in slight limitation of physical activity. 
They are comfortable at rest. Ordinary physical activity results in fatigue, 
palpitation, dyspnea, or anginal pain. 
 
III 
Subjects have cardiac disease resulting in marked limitation of physical activity. 
They are comfortable at rest. Less than ordinary physical activity causes fatigue, 
palpitation, dyspnea, or anginal pain. 
 
IV 
Subjects have cardiac disease resulting in inability to carry on any physical 
activity without discomfort. Symptoms of cardiac insufficiency or of the anginal 
syndrome may be present even at rest. If any physical activity is undertaken, 
discomfort is increased. 
 
 
 
 
 

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14.4 Examples of a low fat breakfast 
 
Two slices of white toast with 1 tablespoon of low-fat margarine and 1 tablespoon of jelly and 8 
ounces of skim milk. (Approximately 319 calories and 8.2 grams of fat) 
 
One cup of cereal (i.e., Special K), 8 ounces of skimmed milk, one piece of toast with jam (no 
butter or marmalade), apple juice, and one cup of coffee or tea (2 g fat, 17 g protein, 93 g of 
carbohydrate, 520 calories). 
 
 
 

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14.5 Glomerular Filtration Rate (GFR) 
 
In accordance with established nephrology practice and guidelines, renal function at baseline 
and throughout the study will be assessed by means of the estimated Glomerular Filtration 
Rate (GFR), calculated using the abbreviated Modification of Diet in Renal Disease (MDRD) 
study formula. 
 
This equation of 4 variables (serum creatinine level, age, sex, and ethnicity) is recommended by 
the National Kidney Foundation (NKF) for use in individuals 18 years or older.2 
 
The formula is as follows:  
 
aMDRD formula 
 
GFR (mL/min /1.73m2) = k x 186 x [SCR]-1.154 x [age]-0.203 
 
Where k = 1 (men) or 0.742 (women), GFR indicates glomerular filtration rate, and SCR is 
measured in mg/dL. 
 
Patients with a baseline GFR < 30 ml/min calculated by this method will not be allowed to 
participate in the study. 
 
 
 
                                                          
2. References:  Levey AS, Coresh J, Greene T, Stevens LA, Zhang YL, Hendriksen S, et al. Using standardized serum 
creatinine values in the modification of diet in renal disease study equation for estimating glomerular filtration 
rate. Ann Intern Med. 2006 Aug 15;145(4):247-54. 
A more accurate method to estimate glomerular filtration rate from serum creatinine: a new prediction equation. 
Ann Intern Med. 1999 March 16;130 (6)(Modification of Diet in Renal Disease Study Group):461-70.  
Definition and classification of stages of chronic kidney disease. American Journal of Kidney Diseases. 2002 
February;39(2 Supply 1):S46-S75. 

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14.6 ECOG  
 
Grade  Description 
 
0 
Fully active, able to carry on all pre-disease performances without restriction. 
 
1 
Restricted in physically strenuous activity but ambulatory and able to carry out 
work of a light or sedentary nature (e.g. light housework, office work).  
 
2 
Ambulatory and capable of all self-care but unable to carry out any work 
activities. Up and about more than 50% of waking hours.  
 
3 
Capable of only limited self-care, confined to bed or chair more than 50% of 
waking hours.  
 
4 
Completely disabled. Cannot carry on any self-care. Totally confined to bed or 
chair. 
 
5 
Death. 
 
 
 
 

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14.7 Overview of STRONG CYP3A4 inducers 
 
Ajmaline 
Avasimibe 
Carbamazepine 
Enzalutamide 
Fosphenytoin 
Hypericum perforatum, St. John’s wort 
Methylphenobarbital 
Mitotane 
Phenobarbital 
Phenytoin 
Primidone 
Phenobarbital 
Rifampicin 
Rifamycin 
Rifapentin 
 
 

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14.8 Overview of STRONG CYP3A4 inhibitors 
 
 
Boceprevir  
Clarithromycin  
Cobicistat 
Conivaptan  
Delavirdine 
Indinavir 
Itraconazole 
Ketoconazole 
Lopinavir 
Mibefradil 
Miconazole 
Nefazodone 
Nelfinavir 
Posaconazole 
Ritonavir 
Saquinavir 
Telaprevir 
Telithromycin 
Tipranavir 
Troleandomycin  
Voriconazole