A Randomized, Double-blind, Placebo-controlled, 3-arm, Parallel-group 52-week Multicenter Study to Evaluate the Efficacy and Safety of Sotagliflozin in Patients With Type 2 Diabetes Mellitus and Moderate Renal Impairment Who Have Inadequate Glycemic Control
Phase: PHASE3
Conditions: Type 2 Diabetes Mellitus, Chronic Kidney Disease Stage 3
Sponsor: Lexicon Pharmaceuticals

Official Title: A Randomized, Double-blind, Placebo-controlled, 3-arm, Parallel-group, 
52-week Multicenter Study to Evaluate the Efficacy and Safety of
Sotagliflozin in Patients with Type 2 Diabetes Mellitus and Moderate
Renal Impairment who have Inadequate Glycemic Control
NCT Number: NCT03242252 
Document Date: Protocol Version 1: 22-December-2017 

Any and all information presented in this document shall be treated as confidential and shall remain the exclusive property of Sanofi (or any of its 
affiliated companies). The use of such confidential information must be restricted to the recipient for the agreed purpose and must not be 
disclosed, published or otherwise communicated to any unauthorized persons, for any reason, in any form whatsoever without the prior written 
consent of Sanofi (or the concerned affiliated company); ‘affiliated company’ means any corporation, partnership or other entity which at the date 
of communication or afterwards (i) controls directly or indirectly Sanofi, (ii) is directly or indirectly controlled by Sanofi, with ‘control’ meaning 
direct or indirect ownership of more than 50% of the capital stock or the voting rights in such corporation, partnership or other entity 
 
Page 1 
AMENDED CLINICAL TRIAL PROTOCOL NO. 01 
COMPOUND: sotagliflozin/SAR439954 
A Randomized, Double-blind, Placebo-controlled, 3-arm, Parallel-group, 52-week 
Multicenter Study to Evaluate the Efficacy and Safety of Sotagliflozin in Patients 
with Type 2 Diabetes Mellitus and Moderate Renal Impairment who have 
Inadequate Glycemic Control 
STUDY NUMBER: EFC14837 
STUDY NAME: SOTA-CKD3 
VERSION DATE / STATUS: Approval date (20-Dec-2017) / Approved 
Protocol Amendment 01 
Version number: 1 (electronic 1.0) 
Date : 20-Dec-2017 
Clinical Trial Protocol 
Version number: 1 (electronic 2.0) 
Date : 11-May-2017 
EudraCT:
2016-004889-26
IND Number: 
 
Version Number: 
1  
WHO universal trial number: 
U1111-1187-8662 
Date: 
20-Dec-2017
Total number of pages: 
127 
(electronic 1.0)
(electronic 1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 2 
NAMES AND ADDRESSES OF 
COORDINATING 
INVESTIGATOR 
 
Name: 
Address: 
 
 
Tel: 
Fax: 
E-mail: 
 
 
MONITORING TEAM’S 
REPRESENTATIVE 
 
Name: 
Address: 
 
 
 
Tel: 
Fax: 
E-mail: 
 
 
SPONSOR 
 
Company: 
Address: 
 
 
 
 
 
 
OTHER EMERGENCY 
TELEPHONE NUMBERS 
 
 
 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)
Click here and type
Click here and type
Click here and type
Click here and type

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 3 
CLINICAL TRIAL SUMMARY 
 
COMPOUND: sotagliflozin/SAR439954 
STUDY No.: EFC14837 
TITLE 
A Randomized, Double-blind, Placebo-controlled, 3-arm, 
Parallel-group, 52-week Multicenter Study to Evaluate the Efficacy 
and Safety of Sotagliflozin in Patients with Type 2 Diabetes Mellitus 
and Moderate Renal Impairment who have Inadequate Glycemic 
Control 
INVESTIGATOR/TRIAL LOCATION 
Multinational 
PHASE OF DEVELOPMENT 
3 
STUDY OBJECTIVES 
Primary objective: 
To demonstrate the superiority of sotagliflozin 400 mg and 200 mg 
versus placebo with respect to hemoglobin A1c (HbA1c) reduction at 
Week 26 in patients with Type 2 diabetes (T2D) who have 
inadequate glycemic control and moderate renal impairment. 
Secondary objectives: 
• 
To assess the effects of sotagliflozin 400 mg and 200 mg 
versus placebo, based on: 
- 
Change from Baseline in fasting plasma glucose 
(FPG) at Week 26 
- 
Change from Baseline in body weight at Week 26 
- 
Change from Baseline in systolic blood pressure 
(SBP) at Week 12 for patients with Baseline SBP 
≥130 mmHg 
- 
Change from Baseline in SBP at Week 12 for all 
patients 
- 
Percentage change in urine albumin:creatinine ratio 
(UACR) from Baseline to Week 26 (for patients with 
Baseline UACR >30 mg/g) 
- 
Proportion of patients with HbA1c <6.5%, <7.0% at 
Week 26. 
• 
To evaluate the safety of sotagliflozin 400 mg and 200 mg 
versus placebo over the 52 weeks of treatment. 
Other: 
To compare sotagliflozin 400 mg and 200 mg versus placebo with 
respect to: 
• 
Change from Baseline in SBP at Weeks 26 and 52 for 
patients with Baseline SBP ≥130 mmHg 
• 
Change from Baseline in SBP at Weeks 26 and 52 for all 
patients 
• 
Change from Baseline in HbA1c at Week 52 
• 
Change from Baseline in FPG at Week 52 
• 
Change from Baseline in body weight at Week 52 
• 
Change from Baseline in estimated glomerular filtration 
rate (eGFR). 
• 
Change from Baseline on the following endpoints: 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 4 
- 
Cystatin C 
- 
Urinary Glucose Excretion (UGE) 
- 
Urine Glucose:creatinine ratio (UGCR) 
- 
Fructosamine 
- 
N-terminal prohormone of brain natriuretic peptide 
(NT-proBNP). 
• 
Progression of kidney disease, based upon changes in 
eGFR or albuminuria. 
• 
Change from Baseline to Week 12 in SBP for patients with 
Baseline SBP <130 mmHg. 
• 
Change from Baseline to Week 12 in diastolic blood 
pressure (DBP) for all patients and the subset of patients 
with Baseline DBP ≥80 mmHg. 
• 
The proportion of patients requiring rescue for 
hyperglycemia during 26-week double-blind Treatment 
Period. 
• 
To assess plasma levels of sotagliflozin and 
sotagliflozin-3-O-glucuronide in the sotagliflozin treatment 
arms. 
STUDY DESIGN 
This is a Phase 3, multicenter, randomized, double-blind, 
placebo-controlled, parallel-group study. 
Patients with T2D will be included in this study if at Screening they 
have an HbA1c between 7% and 11%, inclusive, and moderate renal 
impairment (defined as a Screening Modification of Diet in Renal 
Disease (MDRD) eGFR of ≥30 to <60 mL/min/1.73 m2). Any 
background antidiabetic therapy (oral or injected including insulin) is 
permitted with the exception of other sodium-glucose cotransporter 
type 2 (SGLT2) inhibitors. During the double-blind Treatment Period, 
the type and the dose of background therapy should not be changed 
unless for safety concerns. 
All patients will have a Screening Period comprised of an up to 
2-week Screening phase and a 2-week, single-blind placebo Run-in 
phase prior to randomization. In order to qualify for randomization, 
patients must demonstrate compliance during the single-blind 
placebo Run-in phase based upon tablet count (≥80%) and as 
assessed at the Investigator’s discretion. 
Patients will be randomly assigned 1:1:1 to 1 of 3 treatment arms at 
Visit 3 (Week 0, Day 1): 
• 
Placebo 
• 
Sotagliflozin 200 mg 
• 
Sotagliflozin 400 mg. 
Randomization will be stratified by: 
• 
Screening HbA1c (≤8.5% and >8.5%) 
• 
Screening SBP (<130 mmHg and ≥130 mmHg) 
• 
Chronic kidney disease stage (either CKD stage 3A 
[screening eGFR of 45 to <60 mL/min/1.73 m2] or CKD 
stage 3B [screening eGFR of 30 to <45 mL/min/1.73 m2]). 
To ensure sufficient patients in each CKD stratum, enrollment will be 
capped for the 1st CKD that reaches 390 patients (either CKD stage 
3A or CKD stage 3B). Enrollment for the study will be completed 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 5 
when reaching the target number as planned. 
Following randomization, patients will have a 26-week double-blind 
Treatment Period, followed by a 26-week double-blind Extension 
Period, and a 4-week post-treatment Follow-up Visit to collect safety 
and some efficacy information. 
Patients will be monitored throughout the double-blind Treatment 
Period and Extension Period for signs of deterioration in renal 
function (eg, decrease in eGFR) as well as all other routine clinical 
and laboratory findings. If at any visit after Randomization up to 
Week 8 there is a rise in creatinine level (ie, >50% increase from 
Baseline level, where Baseline level is defined as the mean of 
creatinine values obtained at Screening and Randomization) or if at 
any visit after Week 8 there is a rise of >50% above the mean of 
creatinine values from the previous 2 visits, the Investigator should 
ensure that no reasonable explanation exists for creatinine increase 
and in particular the following causes: 
• 
Medications that increase creatinine 
• 
Decrease in cardiac output 
• 
Obstructive uropathy 
• 
Urinary tract infection 
• 
Volume depletion. 
If addressing these causes does not reduce the creatinine level 
below the above stated threshold, the investigational medicinal 
product (IMP) will be stopped for 2 weeks. If at creatinine recheck 
the patient has returned to the below threshold, then IMP will be 
restarted at a reduced dose (ie, dose reduced via interactive 
response technology to 200 mg for those randomized to 400 mg, 
maintained to 200 mg for those randomized to 200 mg, and to 
placebo for those randomized to placebo). If the creatinine does not 
return to below the threshold, the IMP will be permanently 
discontinued but the patient will be asked to continue attending all 
study visits. 
The HbA1c and FPG results will be masked to study sites and 
patients after randomization and until study end. To prevent partial 
unblinding, UGE and UGCR results will also be masked to study 
sites and patients. Additionally, urinalysis by dipstick will not include 
the measurement of urine glucose. 
Quantitative urine glucose, albumin, calcium, phosphorus, 
magnesium, and creatinine will be measured separately at all on-site 
visits by the central laboratory. 
Early termination 
If a patient discontinues treatment with IMP early during the 
Treatment Period, the patient will have a Premature End of 
Treatment (EOT) visit and a Follow-up Visit 4 weeks after the last 
dose of IMP. In addition, every effort will be made to have all patients 
return to the site at the time corresponding to their scheduled visits, 
particularly the Week 26 and Week 52 visits. 
If a patient does not agree to site visits, he/she will be contacted by 
telephone to enquire about their safety information, particularly at the 
time of the initially scheduled end of study. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 6 
The study design is presented graphically in Section 1.1. 
STUDY POPULATION 
Main selection criteria 
Inclusion criteria: 
• 
Patients with T2D (drug-naïve or on antidiabetic therapy) 
and documented moderate renal insufficiency defined by 
an eGFR (based on the 4 variable MDRD equation) of 
≥30 and <60 mL/min/1.73 m2 (CKD 3A, 3B). 
• 
Patient has given written informed consent to participate in 
the study in accordance with local regulations. 
Exclusion criteria: 
• 
HbA1c <7.0% or HbA1c >11% measured by the central 
laboratory at Screening. 
• 
At the time of Screening age <18 years or < legal age of 
majority, whichever is greater. 
• 
Renal-specific exclusions: 
- 
Renal disease that required treatment with 
immunosuppressive therapy within the last 
12 months, or renal transplant or initiation of chronic 
dialysis within 4 weeks prior to the Screening Visit or 
expected to occur during the study duration. 
- 
Chronic dialysis or CKD stage 4 or 5 or requiring 
chronic dialysis within 6 months of Screening 
- 
Reversible causes of renal failure such as obstruction 
within 6 months of Screening. 
• 
Use of a selective SGLT2 inhibitor (eg, canagliflozin, 
dapagliflozin, or empagliflozin) within 12 months prior to 
the trial. 
• 
Oral antidiabetic agent or insulin use if dose not stable for 
8 weeks before randomization (ie, oral agents changed 
during past 8 weeks or total daily basal insulin dose 
increased or decreased by more than 20% during the past 
4 weeks). 
• 
Type 1 diabetes mellitus. 
• 
Women of childbearing potential (WOCBP) not willing to 
use highly effective method(s) of birth control during the 
study treatment period and the follow-up period, or who 
are unwilling or unable to be tested for pregnancy (see 
Appendix A), during the study. 
• 
History of gastric surgery including history of gastric 
banding or inflammatory bowel disease within 3 years prior 
to the Screening Visit. 
• 
History of diabetic ketoacidosis or nonketotic hyperosmolar 
coma within 12 weeks prior to the Screening Visit. 
• 
History of severe hypoglycemia that resulted in 
unconsciousness, coma, or hospitalization within 6 months 
prior to the Screening Visit. 
• 
Patients with severe anemia, severe cardiovascular 
(including congestive heart failure New York Heart 
Association IV), respiratory, hepatic, neurological, 
psychiatric, or active malignant tumor, or other major 
systemic disease or patients with short life expectancy 
that, according to the Investigator, will preclude their safe 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 7 
participation in this study, or will make implementation of 
the protocol or interpretation of the study results difficult. 
• 
Mean of 3 separate blood pressure (BP) measurements 
>180 mmHg (SBP) or >100 mmHg (DBP) (with or without 
hypertensive medications). 
• 
Systolic BP <120 mmHg or DBP <60 mmHg if the patient 
is on antihypertensive medications. 
• 
Known presence of factors that interfere with the Central 
Lab HbA1c measurement (eg, genetic Hb variants) 
compromising the reliability of HbA1c assessment or 
medical conditions that affect interpretation of HbA1c 
results (eg, blood transfusion or severe blood loss in the 
last 3 months prior to randomization, any condition that 
shortens erythrocyte survival) 
• 
Alanine aminotransferase (ALT) or aspartate 
aminotransferase (AST) >3 times the upper limit of the 
normal laboratory range (ULN). 
• 
Total bilirubin >1.5 times the ULN (except in case of 
Gilbert’s syndrome). 
• 
Use of systemic glucocorticoids (excluding topical, 
intra-articular or ophthalmic application, nasal spray, or 
inhaled forms) for more than 10 consecutive days within 
90 days prior to the Screening Visit. 
• 
Patient who has taken other investigational drugs or 
prohibited therapy for this study within 12 weeks or 
5 half-lives from prior to Screening, whichever is longer. 
Current enrollment in any other clinical study involving an 
investigational study treatment or any other type of medical 
research. 
• 
Pregnancy or breastfeeding. 
• 
Patients unwilling or unable to perform self-monitoring of 
blood glucose (SMBG; Section 9.2.1.8), complete the 
patient diary or comply with study visits and other study 
procedures as required per protocol. 
Total expected number of patients 
780 randomized patients 
STUDY TREATMENTS 
 
Investigational medicinal products 
• 
Sotagliflozin 200 mg, given as two (2) tablets: 
1 sotagliflozin 200-mg tablet and 1 placebo tablet (identical 
to sotagliflozin in appearance), once daily before the first 
meal of the day. 
• 
Sotagliflozin 400 mg, given as two (2) 200-mg tablets, 
once daily before the first meal of the day. 
• 
Placebo, given as two (2) placebo tablets (identical to 
sotagliflozin 200 mg in appearance), once daily before the 
first meal of the day. 
Formulation: 
Tablet 
Route of administration: 
Oral 
Dose regimen: 
Once daily 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 8 
Noninvestigational medicinal products 
Rescue therapy 
The thresholds values are defined as follows, depending on study 
period: 
• 
From Baseline Visit (V3, Day 1) to Visit 6 (Week 8) 
(including value at Visit 6): FPG >270 mg/dL 
(15.0 mmol/L). 
• 
From Visit 6 (Week 8) to Visit 7 (Week 12) (including value 
at Visit 7): FPG >240 mg/dL (13.3 mmol/L). 
• 
From Visit 7 (Week 12) up to the EOT Period Visit 11 
(Week 52) (including value at Visit 11): FPG >200 mg/dL 
(11.1 mmol/L) or HbA1c ≥8.5% (the 8.5% criterion does 
not apply if the HbA1c decrease from Baseline was 
≥1.0%). 
Routine fasting SMBG and central laboratory alerts on FPG (and 
HbA1c at Week 12 and onwards) are set up to ensure that glycemic 
parameters remain under predefined thresholds values (see 
hereinafter). 
• 
If one fasting SMBG value exceeds the specific glycemic 
limit on one day, the patient checks it again during the 
2 following days. If all the values in 3 consecutive days 
exceed the specific limit, the patient should contact the 
Investigator and a central laboratory FPG measurement 
(and HbA1c at Week 12 and onwards) is performed as 
soon as possible, preferably within 7 days to confirm the 
hyperglycemia. 
• 
Upon receipt of a central laboratory rescue alert a central 
laboratory re-test must be completed and confirmed 
as exceeding the criterion for rescue before rescue 
therapy is initiated. The re-test confirmation should be 
performed as soon as possible, but within 7 days of receipt 
by unscheduled visit. 
In case of a confirmatory FPG and/or HbA1c above the threshold 
values, the Investigator should ensure that no reasonable 
explanation exists for insufficient glucose control and in particular 
that: 
• 
The increased FPG has been tested at a fasting status (ie, 
no food intake for ≥8 hours). 
• 
Investigational product is given at the planned dose. 
• 
Absence of intercurrent disease, which may jeopardize 
glycemic control (eg, infectious disease). 
• 
Compliance to treatment is appropriate. 
• 
Compliance to diet and lifestyle is appropriate. 
If any of the above can reasonably explain the insufficient glycemic 
control, the Investigator should consider not initiating rescue 
medication and should undertake appropriate action, ie: 
• 
Assess plasma glucose in fasting condition (ie, after at 
least 8 hours fast). 
• 
Initiate an evaluation and treatment of intercurrent disease 
(to be reported in adverse event [AE]/concomitant 
medication parts of the electronic case report form [e-CRF] 
and the medical record). 
 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 9 
• 
Stress on the absolute need to be compliant with 
treatment. 
• 
Organize a specific interview with the patient and a 
Registered Dietician or other qualified nutrition 
professional and to reinforce on the absolute need to be 
compliant to diet and lifestyle recommendations, and 
schedule an FPG/HbA1c assessment at the next visit. 
If none of the above mentioned reasons can be found, or if 
appropriate action fails to decrease FPG/HbA1c under the threshold 
values, rescue medication may be introduced. 
• 
Open label rescue medication(s) to treat hyperglycemia 
must be in accordance with local standard of care and 
prescribing practice for patients with CKD and will be at the 
discretion of the investigator. Except for sodium-glucose 
cotransporter type 2 (SGLT2) inhibitors and medications 
with specific contraindications in renal impairment, any 
approved medication(s) including oral antidiabetic drugs or 
insulin can be considered with appropriate dose 
modification as indicated. 
• 
The patient continues the IMP (blinded) and stays in the 
study in order to collect efficacy and safety information. 
The planned visits and assessments should occur until the 
last scheduled visit. 
• 
Rescue therapy is considered a noninvestigational 
medicinal product. Rescue therapy is to be reported in the 
e-CRF. This information should include specific drug 
name, dose, route of administration, and frequency. 
If not covered by health insurance, the cost of the rescue therapy will 
be reimbursed by the Sponsor where permitted by local regulations. 
ENDPOINTS 
Primary efficacy endpoint: 
Change from Baseline to Week 26 in HbA1c (%) comparing 
sotagliflozin 400 mg versus placebo in overall population, and in 
CKD stages 3A and 3B patients sequentially, then comparing 
sotagliflozin 200 mg versus placebo in overall population, and in 
CKD stages 3A and 3B patients sequentially. 
Secondary efficacy endpoints: 
To compare sotagliflozin 400 mg and 200 mg versus placebo, 
respectively, in terms of: 
• 
Change from Baseline in FPG at Week 26. 
• 
Change from Baseline in body weight at Week 26. 
• 
Change from Baseline in SBP at Week 12 for patients with 
Baseline SBP ≥130 mmHg. 
• 
Change from Baseline in SBP at Week 12 for all patients. 
• 
Percentage change in UACR from Baseline to Week 26 for 
patients with UACR >30 mg/g at Baseline. 
• 
Proportion of patients with HbA1c <6.5%, <7.0% at 
Week 26. 
 
 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 10 
Other efficacy endpoints: 
To compare sotagliflozin 400 mg and 200 mg versus placebo, 
respectively, in terms of: 
• 
Change from Baseline in SBP at Weeks 26 and 52 for 
patients with Baseline SBP ≥130 mmHg 
• 
Change from Baseline in SBP at Weeks 26 and 52 for all 
patients 
• 
Change from Baseline in HbA1c at Week 52. 
• 
Change from Baseline in FPG at Week 52. 
• 
Change from Baseline in body weight at Week 52. 
• 
Change from Baseline in eGFR. 
• 
Proportion of patients requiring rescue for hyperglycemia 
during 26-week double-blind Treatment Period. 
• 
Change from Baseline in: 
- 
Cystatin C 
- 
UGE 
- 
UGCR 
- 
Fructosamine 
- 
NT-proBNP. 
• 
Proportion of patients with progression to end stage renal 
disease (ESRD) (dialysis or transplant) at Week 4 or any 
time later during the trial. 
• 
Proportion of patients with >50% decline in eGFR from 
Baseline at Week 26 and Week 52. 
• 
Proportion of patients with progression from normal to 
microalbuminuria or from microalbuminuria to 
macroalbuminuria from Baseline at Week 26 and Week 52. 
• 
Proportion of patients with improvement from 
microalbuminuria to normal or from macroalbuminuria to 
microalbuminuria from Baseline at Week 26 and Week 52. 
• 
Change from Baseline in SBP at Week 12 for patients with 
Baseline SBP <130 mmHg. 
• 
Change from Baseline in DBP at Week 12 for all patients 
and the subset of patients with Baseline DBP ≥80 mmHg. 
 
Safety endpoints: 
• 
AEs, hypoglycemia (all, severe and/or documented 
symptomatic hypoglycemia), events of special interest 
(EOSI), adverse events of special interest (AESI), AEs 
leading to discontinuation from the IMP, serious adverse 
events (SAE), and deaths. 
• 
Acute Renal Failure. 
• 
Clinical laboratory results, vital signs results, 
electrocardiogram (ECG), and bone mineral density 
(BMD). 
• 
Markers of intestinal transit and absorption. 
• 
Markers of bone and calcium metabolism. 
Pharmacokinetic endpoints: 
• 
Plasma levels of sotagliflozin and  
sotagliflozin-3-O-glucuronide in the sotagliflozin treatment 
arms. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 11 
ASSESSMENT SCHEDULE 
See Study Flow Chart, Section 1.2. 
STATISTICAL CONSIDERATIONS 
 
Sample size determination: 
The sample size/power calculations were performed based on the 
primary endpoint. Assuming a common standard deviation of 1.2% 
and using a 2-sided test at a 0.05 α-level, 130 patients in each CKD 
stratum (3A or 3B) in each treatment group will provide the following 
power: 
• 
To detect a treatment difference of 0.6% in mean HbA1c 
change from Baseline to Week 26 between sotagliflozin 
400 mg versus placebo: 
- 
98% power comparing sotagliflozin 400 mg versus 
placebo in patients in CKD 3A stratum 
- 
98% power comparing sotagliflozin 400 mg versus 
placebo in patients in CKD 3B stratum 
- 
99% power comparing sotagliflozin 400 mg versus 
placebo in overall patient population 
• 
To detect a treatment difference of 0.5% in mean HbA1c 
change from Baseline to Week 26 between sotagliflozin 
200 mg versus placebo: 
- 
91% power comparing sotagliflozin 200 mg versus 
placebo in patients in CKD 3A stratum 
- 
91% power comparing sotagliflozin 200 mg versus 
placebo in patients in CKD 3B stratum 
- 
99% power comparing sotagliflozin 200 mg versus 
placebo in overall patient population 
• 
At least 80% overall power to have all 6 above statistical 
inferences statistically significant based on above 
treatment effect assumptions. 
Analysis population: 
Efficacy analyses will be based on the intent-to-treat (ITT) 
population, defined as all randomized patients irrespective of 
compliance with the study protocol and procedures. Patients will be 
analyzed according to the treatment group to which they are 
randomized. 
Analysis of the primary efficacy endpoint: 
Analysis of the primary efficacy endpoint (change from Baseline to 
Week 26 in HbA1c) will be performed using the ITT population, using 
HbA1c measurements obtained during the study, including those 
obtained after IMP discontinuation or introduction of rescue therapy. 
The primary efficacy endpoint of change in HbA1c from Baseline to 
Week 26 will be analyzed with missing values imputed by 
control-based multiple imputation method under the missing not at 
random frame work. 
• 
For placebo patients, missing data will be imputed based 
on the placebo group data, 
• 
For patients in the sotagliflozin groups, missing data will be 
imputed as if the patients were on placebo group 
throughout the study, where all patients’ measurements 
including the on-treatment measurements will be 
considered as if the measurements were from the placebo 
group in the imputation model. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 12 
Each of the complete datasets will be analyzed by the analysis of 
covariance (ANCOVA) model. To compare sotagliflozin 400 mg and 
200 mg, respectively, versus placebo in overall patient population 
(ie, CKD 3A and 3B patients combined), the model will include 
treatment (sotagliflozin 400 mg, sotagliflozin 200 mg, and placebo), 
randomization stratum of Screening HbA1c (≤8.5% and >8.5%), 
randomization stratum of Screening SBP (<130 mmHg, 
≥130 mmHg), randomization stratum of CKD stage (3A, 3B), and 
country as fixed effects, and Baseline HbA1c value as a covariate. 
To compare sotagliflozin 400 mg and 200 mg, respectively, versus 
placebo in each CKD stratum, the model will include treatment 
(sotagliflozin 400 mg, sotagliflozin 200 mg, and placebo), 
randomization stratum of Screening HbA1c (≤8.5% and >8.5%), 
randomization stratum of Screening SBP (<130 mmHg, 
≥130 mmHg), randomization stratum of CKD stage (3A, 3B), 
treatment by randomization stratum of CKD stage, and country as 
fixed effects, and Baseline HbA1c value as a covariate. Results from 
each complete dataset will be combined to provide the adjusted 
mean change in HbA1c from Baseline to Week 26 for each treatment 
group, as well as the between-group difference (comparing each 
sotagliflozin group versus placebo) and its associated 95% 
confidence interval (CI) using contrast statements. 
Summary statistics (for Screening value, Baseline value, observed 
values, and observed changes from Baseline) at scheduled visits will 
be provided for each treatment group and by CKD stages (3A, 3B). 
The summary will include the number of observations, mean, 
standard deviation (SD), standard error (SE), minimum, median, and 
maximum. Graphical presentations will also be used to examine 
trends over time using mean values (±SE) and mean changes from 
Baseline (±SE) at each of the scheduled visits (using observed case 
[OC]). 
Baseline definition: 
The Baseline value is defined generally as the last available value 
before the first dose of double-blind IMP or the last available value 
prior to randomization for patients who were randomized but never 
exposed to IMP. 
For serum creatinine (or eGFR), the Baseline value is defined as the 
mean of creatinine levels (or eGFR) at the Screening and 
Randomization Visits prior to the first dose of double-blind IMP or 
prior to randomization for patients who were randomized but never 
exposed to IMP. 
Analysis of secondary efficacy endpoints: 
The secondary endpoints will be analyzed using a similar approach 
to the primary efficacy endpoint, with missing values imputed by the 
control-based multiple imputation method under the missing not at 
random frame work. For each of the continuous secondary 
endpoints, each of the complete datasets will be analyzed by the 
ANCOVA model with treatment groups (sotagliflozin 400 mg, 
sotagliflozin 200 mg, and placebo), randomization stratum of 
Screening HbA1c (≤8.5% and >8.5%), randomization stratum of 
Screening SBP (<130 mmHg, ≥130 mmHg), randomization stratum 
of CKD stage (3A, 3B), and country as fixed effects, and Baseline 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 13 
secondary endpoint value as a covariate. Results from each 
complete dataset will be combined to provide the adjusted mean 
change from Baseline to Week 26 (Week 12 for SBP endpoints) for 
each treatment group, as well as the between-group difference 
(comparing each sotagliflozin group versus placebo) and its 
associated 95% CI using contrast statements. 
The UACR will be log-transformed before the analysis. Change from 
Baseline to Week 26 of UACR in log scale will be analyzed. Results 
in the log scale will be back-transformed to provide the ratio and then 
the percent change of UACR at Week 26 versus Baseline based on 
the geometric means as well as the corresponding 95% CIs. 
The categorical secondary efficacy variables of HbA1c <6.5%, <7% 
at Week 26 will be analyzed using a Cochran-Mantel-Haenszel 
method stratified by randomization stratum of Screening HbA1c 
(≤8.5% and >8.5%), randomization stratum of Screening SBP 
(<130 mmHg, ≥130 mmHg), randomization stratum of CKD stage 
(3A, 3B). For the HbA1c <7% or <6.5% analysis, patients with 
missing HbA1c data at Week 26 will be considered non-responders 
in the ITT population. 
Summary statistics for the secondary endpoints at scheduled visits 
will be provided for each treatment group and by CKD stages (3A, 
3B) as appropriate. 
Analysis of other efficacy endpoints: 
The analysis of other endpoints will be descriptive with no formal 
testing. Summary statistics at scheduled visits using OC will be 
provided by each treatment group and by CKD stages (3A, 3B) as 
appropriate. Graphical presentations will also be used to illustrate 
trends over time. 
Analyses of safety data: 
All safety summaries will be descriptive; no statistical significance 
tests will be performed on safety data. These analyses will be based 
on the safety population, which is defined as all randomized patients 
who receive at least 1 dose of double-blind treatment, regardless of 
the amount of treatment administered. Patients will be analyzed for 
safety analyses according to the treatment actually received. 
DURATION OF STUDY PERIOD (per 
patient) 
Up to 60 weeks, including a 4-week Screening Period (comprised of 
a 2-week Screening phase and a 2-week single-blind placebo Run-in 
phase), a 26-week double-blind Treatment Period, a 26-week 
double-blind Extension Period, and a 4-week post-treatment 
Follow-up Visit. 
STUDY COMMITTEES 
Steering Committee:  
 Yes    
 No 
Data monitoring committee: 
 Yes    
 No 
Clinical Endpoint Committees:  
 Yes    
 No 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 14 
1 
FLOW CHARTS 
1.1 
GRAPHICAL STUDY DESIGN 
 
Abbreviations: eGFR: estimated glomerular filtration rate; HbA1c: hemoglobin A1c; SBP: systolic blood pressure; T2D: Type 2 diabetes 
(electronic 
 
 
1.0)
(electronic 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 15 
1.2 
STUDY FLOW CHART 
Screening Period 
 
Screening 
Run-in 
Double-blind Treatment Perioda 
Extension Period 
Follow 
Upb 
Visit 
1 
2 
3 
(Randomization) 
4 
5 
6 
7 
8 
9 
10 
11 
12 
Week 
-4 
-2 
0 
Baseline 
2 
4 
8 
12 
18 
26 
39 
52 
56 
Day (window [days]) 
 
(±3) 
1 
14 (±5) 
28 (±5) 
56 (±5) 
84 (±5) 
126 (±5) 
182 (±5) 
273 (±5) 
364 (±5) 
392 (±5) 
Informed consent 
X 
 
 
 
 
 
 
 
 
 
 
 
Inclusion criteria 
X 
 
 
 
 
 
 
 
 
 
 
 
Exclusion criteria 
X 
 
X 
 
 
 
 
 
 
 
 
 
Demographics 
X 
 
 
 
 
 
 
 
 
 
 
 
Medical/Surgical History 
X 
 
 
 
 
 
 
 
 
 
 
 
Medication History 
X 
 
 
 
 
 
 
 
 
 
 
 
Body weight, heightc 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
Vital signsd 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
Physical Exam: 
 
 
 
 
 
 
 
 
 
 
 
 
 
Complete 
X 
 
 
 
 
 
 
 
X 
 
X 
 
 
Abbreviatede 
 
X 
X 
X 
 
 
 
 
 
 
 
X 
Diet & exercise instruction 
 
X 
X 
X 
X 
 
 
 
X 
X 
 
 
Instruction on basic genito-urinary hygiene 
& hydration 
X 
X 
X 
 
X 
X 
X 
X 
X 
X 
 
 
Interactive response technology (IRT) 
contact 
X 
X 
X 
 
X 
X 
X 
X 
X 
X 
X 
X 
Randomization 
 
 
X 
 
 
 
 
 
 
 
 
 
Dispense glucose meter 
 
X 
 
 
 
 
 
 
 
 
 
 
Collect glucose meter 
 
 
 
 
 
 
 
 
 
 
 
X 
Dispense diary 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
 
(electronic 
 
 
1.0)
(electronic 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 16 
Screening Period 
 
Screening 
Run-in 
Double-blind Treatment Perioda 
Extension Period 
Follow 
Upb 
Visit 
1 
2 
3 
(Randomization) 
4 
5 
6 
7 
8 
9 
10 
11 
12 
Week 
-4 
-2 
0 
Baseline 
2 
4 
8 
12 
18 
26 
39 
52 
56 
Day (window [days]) 
 
(±3) 
1 
14 (±5) 
28 (±5) 
56 (±5) 
84 (±5) 
126 (±5) 
182 (±5) 
273 (±5) 
364 (±5) 
392 (±5) 
Collect/review diary 
 
X 
X 
X 
X 
X 
X 
X 
X 
X 
 
X 
Instruction on diabetic ketoacidosis 
symptoms and glucose testing 
 
 
X 
 
X 
X 
X 
X 
X 
X 
 
 
Dispense IMP 
 
X 
X 
 
X 
X 
X 
X 
X 
X 
 
 
IMP accounting & compliance 
 
 
X 
X 
X 
X 
X 
X 
X 
X 
X 
 
Concomitant medication 
X 
X 
X 
 
X 
X 
X 
X 
X 
X 
X 
X 
Self-monitored blood glucosef 
 
X 
X 
 
X 
X 
X 
X 
X 
X 
X 
X 
12-lead ECGg 
 
X 
 
 
 
 
 
 
X 
 
X 
 
Laboratory testingh 
 
 
 
 
 
 
 
 
 
 
 
 
FPG 
X 
 
X 
 
X 
X 
X 
X 
X 
X 
X 
 
HbA1c 
X 
 
X 
 
 
X 
X 
X 
X 
X 
X 
 
Fructosamine 
 
 
X 
 
X 
X 
X 
X 
X 
X 
X 
 
Clinical chemistryi 
X 
 
X 
X 
X 
X 
X 
X 
Xj 
X 
Xj 
X 
Hematology 
X 
 
X 
X 
X 
 
X 
 
X 
X 
X 
 
Cystatin C 
 
 
X 
X 
X 
 
X 
 
X 
X 
X 
X 
NT-proBNP 
 
 
X 
X 
X 
 
X 
 
X 
X 
X 
 
Fasting lipids 
 
 
X 
 
 
 
 
 
X 
X 
X 
 
Pregnancy test (WOCBP)k 
X 
 
X 
 
X 
X 
X 
X 
X 
X 
X 
 
Serum follicle stimulating hormone and 
estradiol (menopausal women onlyk 
X 
 
 
 
 
 
 
 
 
 
 
 
Plasma concentrationk 
 
 
 
 
X 
 
 
X 
Xj 
 
Xj 
 
(electronic 
 
 
1.0)
(electronic 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 17 
Screening Period 
 
Screening 
Run-in 
Double-blind Treatment Perioda 
Extension Period 
Follow 
Upb 
Visit 
1 
2 
3 
(Randomization) 
4 
5 
6 
7 
8 
9 
10 
11 
12 
Week 
-4 
-2 
0 
Baseline 
2 
4 
8 
12 
18 
26 
39 
52 
56 
Day (window [days]) 
 
(±3) 
1 
14 (±5) 
28 (±5) 
56 (±5) 
84 (±5) 
126 (±5) 
182 (±5) 
273 (±5) 
364 (±5) 
392 (±5) 
Markers of intestinal transit & absorptionm 
 
 
X 
X 
X 
 
 
 
X 
 
X 
 
Markers of bone & calcium metabolismn 
 
 
X 
X 
X 
 
 
 
X 
 
X 
 
Urinalysis (dipstick and microscopy)o 
 
X 
X 
X 
X 
X 
X 
X 
X 
 
X 
 
BMDp 
 
 
X 
 
 
 
 
 
 
 
X 
 
Collection of home urine for albumin, 
creatinine, calcium, phosphorus, 
magnesium, glucose, and 
albumin-creatinine ratioq 
 
 
X 
X 
X 
 
X 
 
X 
 
X 
 
Evaluate for glycemic rescue 
 
 
To be assessed and reported throughout the Treatment Period 
 
Evaluate for 50% increase in Creatininet 
 
 
To be assessed and reported throughout the Treatment Period 
 
Hypoglycemia 
To be assessed and reported throughout the study 
AEs/SAEs/AESI/EOSI 
To be assessed and reported throughout the studyu 
a If a patient discontinues treatment with IMP early during the Treatment Period, the patient will have a Premature EOT Visit (similar to Visit 11, see Section 10.1.3.2), and a Follow-up Visit, 4 weeks after the last 
dose of IMP (similar to Visit 12, see Section 10.1.4.1). However, every effort will be made to have all patients return to the site for all scheduled visits, in particular the Week 26 and Week 52 Visits. If a patient 
discontinues (or completes) treatment and study at the same time, a single visit for both EOT and follow-up will be performed. 
b Four weeks after the last dose of IMP. 
c Height to be measured only at Screening. 
d Vital sign measurements (sitting BP, heart rate, temperature, and respiratory rate): 3 separate seated BP and heart rate measurements should be taken with at least 1 minute between readings, following a 
5-minute rest period and prior to phlebotomy. 
e The abbreviated physical exam should focus on cardiac and respiratory systems, as well as any areas important for assessment of AEs if necessary. 
f 
Self-monitored blood glucose (SMBG) is to be performed fasting, at least 3 times per week from start of Run-in until end of Treatment Period including on day of each on-site study visit except Visit 4. Patients will 
also be requested to self-assess blood glucose levels whenever they experience symptoms of hypoglycemia. The SMBG will be presented as equivalent self-monitoring plasma glucose (SMPG). 
g The 12-lead ECG recordings should be obtained prior to IMP administration. The ECG will be evaluated as “normal” or “abnormal”. 
(electronic 
 
 
1.0)
(electronic 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 18 
h All laboratory assessments occur prior to dose of double-blind IMP. All visit dates will be scheduled based on the date of randomization with a ±3 days visit window allowed during the Treatment Period. 
Chemistry panel: Hematology panel in Section 9.2.1.3. 
i 
Clinical chemistry laboratory tests are outlined in Table 2. Other chemistry tests will include amylase and lipase. 
j 
An additional blood sample will be drawn at Week 26 (Visit 9) and Week 52 (Visit 11), 3 hours after administering the dose of IMP for creatinine (for eGFR) and for assessing plasma concentration of sotagliflozin 
and sotagliflozin-3-O-glucuronide. 
k Serum pregnancy testing only at Screening; urine pregnancy testing subsequently. Serum pregnancy test results must be reviewed prior to beginning the Run-in phase for all women of childbearing potential 
(WOCBP). Any positive urine test results must be confirmed based on serum pregnancy test. The Investigator may perform additional tests at their discretion or as required by local regulations. For women of 
nonreproductive potential (Appendix A), follicle stimulating hormone (FSH) and/or estradiol levels should be tested if the definition of postmenopausal or premenopausal cannot be satisfied, eg, no medical 
document of hysterectomy or cessation of menses <12 months without an alternative medical cause. 
l 
Plasma concentration samples for sotagliflozin and sotagliflozin-3-O-glucuronide collected on Weeks 4, 18, 26, and 52 may be drawn with the other laboratory assessments but MUST be collected before 
administration of IMP. The time of the last intake of study drug prior to visits where PK samples are taken should be recorded by the patient in the patient diary. Patients should be reminded of this at visits 
preceding PK time points to ensure these details are captured. In the case of premature IMP discontinuation, PK samples should not be drawn at the Premature EOT Visit, neither at all subsequent visits. 
m The markers of intestinal transit and absorption include vitamins B6, B12, K, E, and A, serum folate, and ferritin. 
n Markers of bone and calcium metabolism include: serum calcium , serum 25-hydroxyvitamin D, serum 1,25-dihydroxyvitamin D, serum phosphorus , serum magnesium, serum parathyroid hormone (iPTH), 
markers of bone resorption (serum NTX, serum β-CTX-1), bone formation (serum P1NP and osteocalcin) and serum alkaline phosphatase. 
o Urinalysis includes urine dipstick and microscopy. Dipstick includes assessment of specific gravity, pH, protein, blood, ketones, bilirubin, urobilinogen, nitrite, and leukocyte esterase. Microscopy includes, but is not 
limited to, detection of formed cellular elements, casts, bacteria, yeast, parasites, and crystals in centrifuged urine sediment. In the event of abnormal urinalysis findings suspicious of urinary tract infection (UTI), 
urine culture should be performed. Positive urine culture determination will be based upon the criteria of the reporting laboratory. Additionally, urine culture should be performed if at any point the Principal 
Investigator suspects the presence of a UTI. 
p BMD will be assessed locally (with central reading) in all patients at Baseline (Week 0, Day 1 ±7 days) and at Visit 11 (Week 52, Day 364 ±7 days). 
q Patients will collect overnight urine on Weeks 0, 2, 4, 12, 26, and 52.  In the night prior to the visits, the urine before sleep will be discarded and the urine during sleep and the first morning urine (after getting up) 
will be collected. The visits should be rescheduled to allow for urine collection in case a patient missed it.  Urinary albumin, total protein, creatinine, calcium (adjusted for creatinine), phosphorus (adjusted for serum 
phosphorus and creatinine), magnesium (adjusted for serum magnesium and urinary creatinine), and glucose will be assessed. 
t 
The 50% increase will be from Baseline value (to Week 8) or from the arithmetic mean of creatinine values from last two visits (after Week 8) only at visits having a measurement of creatinine. 
u All serious adverse events (SAEs), adverse events (AEs), AEs of special interest (AESI), and events of special interest (EOSI) will be collected starting from signing informed consent and continue until the end of 
the study. All AEs that occur during treatment should be followed until study completion (or until patients leave the study) or until the event has resolved, the condition has stabilized or the patient is lost to follow-
up. All patients will have a Follow-up visit 4 weeks after the last dose of IMP to collect safety and some efficacy information. 
 
(electronic 
 
 
1.0)
(electronic 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 19 
2 
TABLE OF CONTENTS 
 
1 
FLOW CHARTS.............................................................................................................................14 
1.1 
GRAPHICAL STUDY DESIGN ......................................................................................................14 
1.2 
STUDY FLOW CHART ..................................................................................................................15 
2 
TABLE OF CONTENTS ................................................................................................................19 
2.1 
LIST OF TABLES...........................................................................................................................25 
2.2 
LIST OF FIGURES.........................................................................................................................25 
3 
LIST OF ABBREVIATIONS ..........................................................................................................26 
4 
INTRODUCTION AND RATIONALE.............................................................................................28 
4.1 
BACKGROUND: SOTAGLIFLOZIN AND DISEASE .....................................................................28 
4.2 
CLINICAL TRIALS OF SOTAGLIFLOZIN IN HUMANS ................................................................30 
4.3 
RATIONALE FOR SELECTION OF DOSE ...................................................................................31 
4.4 
RATIONALE FOR STUDY DESIGN AND CONTROL GROUPS..................................................31 
4.5 
BENEFIT/RISK OF SOTAGLIFLOZIN...........................................................................................32 
5 
STUDY OBJECTIVES ...................................................................................................................34 
5.1 
PRIMARY.......................................................................................................................................34 
5.2 
SECONDARY ................................................................................................................................34 
5.3 
OTHER...........................................................................................................................................34 
6 
STUDY DESIGN ............................................................................................................................36 
6.1 
DESCRIPTION OF THE STUDY...................................................................................................36 
6.1.1 
Screening Period............................................................................................................................36 
6.1.1.1 
Screening phase (Visit 1)...............................................................................................................36 
6.1.1.2 
Run-in phase (Visit 2).....................................................................................................................36 
6.1.2 
Double-blind Treatment Period (Day 1 to Week 26)......................................................................37 
6.1.3 
Double-blind Extension Period (Week 27 to Week 52)..................................................................37 
6.1.4 
Follow-up Period ............................................................................................................................38 
6.2 
DURATION OF STUDY PARTICIPATION ....................................................................................38 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 20 
6.2.1 
Duration of study participation for each patient .............................................................................38 
6.2.2 
Determination of end of clinical trial (all patients) ..........................................................................38 
6.3 
STUDY COMMITTEES..................................................................................................................38 
6.3.1 
Steering committee ........................................................................................................................38 
6.3.2 
Data monitoring committee ............................................................................................................39 
6.3.3 
Clinical endpoint committee...........................................................................................................39 
6.3.4 
Safety adjudication of events requiring ongoing monitoring ..........................................................39 
7 
SELECTION OF PATIENTS..........................................................................................................40 
7.1 
INCLUSION CRITERIA..................................................................................................................40 
7.2 
EXCLUSION CRITERIA ................................................................................................................40 
7.2.1 
Exclusion criteria related to study methodology ............................................................................40 
7.2.2 
Exclusion criteria related to the diabetes or CKD history and treatment .......................................41 
7.2.3 
Exclusion criteria related to the current knowledge of sotagliflozin ...............................................42 
7.2.4 
Additional exclusion criteria during or at the end of the Run-in phase before Randomization......42 
8 
STUDY TREATMENTS .................................................................................................................44 
8.1 
INVESTIGATIONAL MEDICINAL PRODUCT(S) ..........................................................................44 
8.1.1 
Dose reduction...............................................................................................................................44 
8.2 
NONINVESTIGATIONAL MEDICINAL PRODUCT .......................................................................45 
8.2.1 
Rescue therapy..............................................................................................................................45 
8.3 
BLINDING PROCEDURES............................................................................................................46 
8.3.1 
Methods of blinding........................................................................................................................46 
8.3.1.1 
First step data analysis ..................................................................................................................47 
8.3.2 
Randomization code breaking during the study.............................................................................47 
8.4 
METHOD OF ASSIGNING PATIENTS TO TREATMENT GROUP ..............................................48 
8.5 
PACKAGING AND LABELING ......................................................................................................49 
8.6 
STORAGE CONDITIONS AND SHELF LIFE................................................................................49 
8.7 
RESPONSIBILITIES ......................................................................................................................49 
8.7.1 
Treatment accountability and compliance......................................................................................50 
8.7.2 
Return and/or destruction of treatments ........................................................................................50 
8.8 
CONCOMITANT MEDICATION.....................................................................................................50 
8.8.1 
Prohibited prior and concomitant medications...............................................................................51 
8.8.2 
Concomitant diabetes therapy .......................................................................................................51 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 21 
8.9 
POSTSTUDY TREATMENT..........................................................................................................52 
9 
ASSESSMENT OF INVESTIGATIONAL MEDICINAL PRODUCT ..............................................53 
9.1 
EFFICACY ENDPOINT..................................................................................................................53 
9.1.1 
Primary efficacy endpoint...............................................................................................................53 
9.1.2 
Secondary efficacy endpoints........................................................................................................53 
9.1.3 
Other efficacy endpoints ................................................................................................................53 
9.1.4 
Assessment methods of efficacy endpoints...................................................................................54 
9.1.4.1 
Hemoglobin A1c.............................................................................................................................54 
9.1.4.2 
Blood pressure measurements ......................................................................................................54 
9.1.4.3 
Body weight measurement ............................................................................................................54 
9.1.4.4 
Fasting plasma glucose measurement ..........................................................................................55 
9.1.4.5 
Kidney function parameter assessments.......................................................................................55 
9.1.4.6 
Fructosamine, NT-proBNP and Cystatin C....................................................................................55 
9.1.4.7 
Use of rescue medication for hyperglycemia.................................................................................55 
9.1.4.8 
Proportion of patients with progression of renal disease...............................................................55 
9.2 
SAFETY ENDPOINTS ...................................................................................................................56 
9.2.1 
Assessment methods of safety endpoints .....................................................................................57 
9.2.1.1 
Adverse events ..............................................................................................................................57 
9.2.1.2 
Hypoglycemia.................................................................................................................................57 
9.2.1.3 
Laboratory safety variables............................................................................................................57 
9.2.1.4 
Urinalysis........................................................................................................................................59 
9.2.1.5 
Vital signs and physical exam........................................................................................................59 
9.2.1.6 
Electrocardiogram variables ..........................................................................................................59 
9.2.1.7 
Bone Mineral Density.....................................................................................................................60 
9.2.1.8 
Self-monitoring of blood glucose....................................................................................................60 
9.3 
OTHER ENDPOINTS.....................................................................................................................61 
9.3.1 
Pharmacokinetics of sotagliflozin...................................................................................................61 
9.3.1.1 
Sampling time ................................................................................................................................61 
9.3.1.2 
Pharmacokinetics handling procedure...........................................................................................61 
9.3.1.3 
Bioanalytical method......................................................................................................................62 
 
..62 
 
62 
 
63 
9.5 
APPROPRIATENESS OF MEASURES ........................................................................................63 
10 
STUDY PROCEDURES ................................................................................................................65 
10.1 
VISIT SCHEDULE..........................................................................................................................65 
10.1.1 
Screening Period............................................................................................................................65 
10.1.1.1 Screening phase ............................................................................................................................65 
10.1.1.2 Run-in phase..................................................................................................................................67 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 22 
10.1.2 
Double-blind randomized Treatment Period (Day 1 to Week 26)..................................................68 
10.1.2.1 On-site Randomization Visit 3 on Day 1 (Baseline; Week 0).........................................................68 
10.1.2.2 On-site visit at Week 2 (Visit 4)......................................................................................................70 
10.1.2.3 On-site visits at Week 4 to Week 18 (Visit 5 to Visit 8)..................................................................71 
10.1.2.4 On-site visit at Week 26 (Visit 9)....................................................................................................72 
10.1.3 
Double-blind Extension Period (Week 27 to Week 52)..................................................................73 
10.1.3.1 On-site visit at Week 39 (Visit 10)..................................................................................................74 
10.1.3.2 On-site visit at Week 52 (Visit 11) – End of Treatment..................................................................75 
10.1.4 
Post-treatment Follow-up Period ...................................................................................................76 
10.1.4.1 Follow-up Visit at Week 56 (Visit 12) – End of Study or 4 weeks after Premature End of 
Treatment.......................................................................................................................................76 
10.2 
DEFINITION OF SOURCE DATA..................................................................................................77 
10.2.1 
Source data to be found in patient’s file.........................................................................................77 
10.2.2 
Source data verification requirements for screen failures .............................................................78 
10.3 
HANDLING OF PATIENT TEMPORARY OR PERMANENT TREATMENT 
DISCONTINUATION AND OF PATIENT STUDY DISCONTINUATION.......................................78 
10.3.1 
Temporary treatment discontinuation with investigational medicinal product................................78 
10.3.2 
Permanent treatment discontinuation with investigational medicinal product ...............................79 
10.3.3 
List of criteria for permanent treatment discontinuation.................................................................79 
10.3.4 
Handling of patients after permanent treatment discontinuation ...................................................80 
10.3.5 
Procedure and consequence for patient withdrawal from study....................................................80 
10.4 
OBLIGATION OF THE INVESTIGATOR REGARDING SAFETY REPORTING ..........................81 
10.4.1 
Definitions of adverse events.........................................................................................................81 
10.4.1.1 Adverse event ................................................................................................................................81 
10.4.1.2 Serious adverse event ...................................................................................................................81 
10.4.1.3 Adverse event of special interest...................................................................................................82 
10.4.1.4 Events of special interest ...............................................................................................................83 
10.4.2 
General guidelines for reporting events.........................................................................................83 
10.4.3 
Instructions for reporting serious adverse events ..........................................................................84 
10.4.4 
Guidelines for reporting adverse events of special interest...........................................................85 
10.4.5 
Guidelines for reporting events of special interest.........................................................................85 
10.4.6 
Guidelines for management of specific laboratory abnormalities ..................................................85 
10.5 
OBLIGATIONS OF THE SPONSOR .............................................................................................85 
10.6 
SAFETY INSTRUCTIONS .............................................................................................................86 
10.6.1 
Hypoglycemia.................................................................................................................................86 
10.6.2 
Deterioration of renal function........................................................................................................88 
10.7 
ADVERSE EVENTS MONITORING..............................................................................................89 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 23 
11 
STATISTICAL CONSIDERATIONS..............................................................................................90 
11.1 
DETERMINATION OF SAMPLE SIZE...........................................................................................90 
11.2 
DISPOSITION OF PATIENTS .......................................................................................................90 
11.3 
ANALYSIS OF POPULATIONS.....................................................................................................91 
11.3.1 
Efficacy populations .......................................................................................................................91 
11.3.1.1 Intent-to-treat population................................................................................................................91 
11.3.2 
Safety population ...........................................................................................................................92 
11.4 
STATISTICAL METHODS .............................................................................................................92 
11.4.1 
Extent of study treatment exposure and compliance.....................................................................92 
11.4.1.1 Extent of investigational medicinal product exposure....................................................................93 
11.4.1.2 Compliance ....................................................................................................................................93 
11.4.2 
Analyses of efficacy endpoints.......................................................................................................93 
11.4.2.1 Analysis of primary efficacy endpoint(s) ........................................................................................93 
11.4.2.2 Analyses of secondary efficacy endpoints.....................................................................................95 
11.4.2.3 Analyses of other efficacy endpoints .............................................................................................96 
11.4.2.4 Multiplicity considerations ..............................................................................................................96 
11.4.3 
Analyses of safety data..................................................................................................................97 
11.4.3.1 Analysis of adverse events ............................................................................................................98 
11.4.3.2 Analyses of hypoglycemia .............................................................................................................99 
11.4.3.3 Analyses of adverse events of special interest..............................................................................99 
11.4.3.4 Analyses of events of special interest............................................................................................99 
11.4.3.5 Analyses of laboratory variables....................................................................................................99 
11.4.3.6 Analyses of vital sign variables ....................................................................................................100 
11.4.3.7 Analysis of 12-lead electrocardiogram status ..............................................................................100 
11.4.3.8 Bone mineral density....................................................................................................................100 
11.4.4 
Analyses of pharmacokinetic variables........................................................................................100 
11.5 
INTERIM ANALYSIS....................................................................................................................101 
12 
ETHICAL AND REGULATORY CONSIDERATIONS.................................................................102 
12.1 
ETHICAL AND REULATORY STANDARDS...............................................................................102 
12.2 
INFORMED CONSENT ...............................................................................................................102 
12.3 
HEALTH AUTHORITIES AND INSTITUTIONAL REVIEW BOARD/INDEPENDENT 
ETHICS COMMITTEE .................................................................................................................102 
13 
STUDY MONITORING.................................................................................................................104 
13.1 
RESPONSIBILITIES OF THE INVESTIGATOR(S).....................................................................104 
13.2 
RESPONSIBILITIES OF THE SPONSOR OR SERVICE PROVIDER .......................................104 
13.3 
SOURCE DOCUMENT REQUIREMENTS..................................................................................104 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 24 
13.4 
USE AND COMPLETION OF CASE REPORT FORMS AND ADDITIONAL REQUEST ...........105 
13.5 
USE OF COMPUTERIZED SYSTEMS........................................................................................105 
14 
ADDITIONAL REQUIREMENTS.................................................................................................106 
14.1 
CURRICULUM VITAE..................................................................................................................106 
14.2 
RECORD RETENTION IN STUDY SITES ..................................................................................106 
14.3 
CONFIDENTIALITY .....................................................................................................................106 
14.4 
PROPERTY RIGHTS...................................................................................................................107 
14.5 
DATA PROTECTION...................................................................................................................107 
14.6 
INSURANCE COMPENSATION..................................................................................................108 
14.7 
SPONSOR AUDITS AND INSPECTIONS BY REGULATORY AGENCIES ...............................108 
14.8 
PREMATURE DISCONTINUATION OF THE STUDY OR PREMATURE CLOSE-OUT OF 
A SITE..........................................................................................................................................108 
14.8.1 
By the Sponsor.............................................................................................................................108 
14.8.2 
By the Investigator .......................................................................................................................109 
14.9 
CLINICAL TRIAL RESULTS ........................................................................................................109 
14.10 
PUBLICATIONS AND COMMUNICATIONS ...............................................................................109 
15 
CLINICAL TRIAL PROTOCOL AMENDMENTS ........................................................................111 
16 
BIBLIOGRAPHIC REFERENCES...............................................................................................112 
17 
APPENDICES..............................................................................................................................114 
APPENDIX A 
GUIDANCE ON CONTRACEPTIVE METHODS AND COLLECTION OF 
PREGNANCY INFORMATION....................................................................................................115 
APPENDIX B 
RECOMMENDATIONS ON BASIC GENITO-URINARY HYGIENE, MAINTAINING 
HYDRATION, AND RECOGNIZING DIABETIC KETOACIDOSIS..............................................118 
APPENDIX C MEASUREMENT OF BLOOD PRESSURE AND PULSE RATE......................................121 
APPENDIX D GENERAL GUIDANCE FOR THE FOLLOW-UP OF LABORATORY 
ABNORMALITIES BY SANOFI....................................................................................................123 
 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 25 
2.1 
LIST OF TABLES 
Table 1 - Summary of investigational medicinal products during Treatment Period.....................................44 
Table 2 - Blood safety parameters ................................................................................................................58 
Table 3 - Sotagliflozin samples identification ................................................................................................61 
 
2.2 
LIST OF FIGURES 
Figure 1 - Hypoglycemia classification in Study EFC14837..........................................................................87 
 
 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 26 
3 
LIST OF ABBREVIATIONS 
 
AEs: 
adverse events 
AESI: 
adverse events of special interest 
ALP: 
alkaline phosphatase 
ALT: 
alanine aminotransferase 
ANCOVA: 
Analysis of Covariance 
AST: 
aspartate aminotransferase 
BMD: 
bone mineral density 
BMI: 
body mass index 
BP: 
blood pressure 
CECs: 
Clinical Endpoint Committees 
CI: 
confidence interval 
CKD: 
chronic kidney disease 
CRF: 
case report form 
CRO: 
contract research organization 
CSR: 
clinical study report 
CV: 
cardiovascular 
CYP: 
cytochrome P450 
DBP: 
diastolic blood pressure 
DEXA: 
dual-energy X-ray absorptiometry 
DILIs: 
drug-induced liver injuries 
DKA: 
diabetic ketoacidosis 
DMC: 
Data Monitoring Committee 
DRF: 
discrepancy resolution form 
ECG: 
electrocardiogram 
e-CRF: 
electronic case report form 
eGFR: 
estimated glomerular filtration rate 
EMA: 
European Medicines Agency 
EOS: 
end of study 
EOSI: 
events of special interest 
EOT: 
end of treatment 
ESRD: 
end-stage renal disease 
FDA: 
Food and Drug Administration 
FPG: 
fasting plasma glucose 
FSH: 
follicle stimulating hormone 
GCP: 
Good Clinical Practice 
GI: 
gastrointestinal 
GLP-1: 
glucagon-like peptide-1 
GU: 
genito-urinary 
HbA1c: 
Hemoglobin A1c 
HLGT: 
high-level group term 
HR: 
heart rate 
HRT: 
hormonal replacement therapy 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 27 
IB: 
Investigator's Brochure 
ICF: 
informed consent form 
ID: 
identification 
IEC: 
Independent Ethics Committee 
IMP: 
investigational medicinal product 
iPTH: 
parathyroid hormone 
IRB: 
Institutional Review Board 
IRT: 
Interactive Response Technology 
ITT: 
intent-to-treat 
MACEs: 
major adverse cardiovascular events 
MDRD: 
Modification of Diet in Renal Disease 
MI: 
myocardial infarction 
NIMP: 
noninvestigational medicinal product 
NT-proBNP: 
N-terminal prohormone of brain natriuretic peptide 
NTX: 
N-terminal telopeptide 
P1NP: 
type 1 procollagen N terminal 
PCSA: 
potentially clinically significant abnormality 
PD: 
pharmacodynamic 
P-gp: 
P-glycoprotein 
PK: 
pharmacokinetic 
PPG: 
postprandial glucose 
PT: 
preferred term 
PYY: 
peptide YY 
SAEs: 
serious adverse events 
SAP: 
statistical analysis plan 
SBP: 
systolic blood pressure 
SC: 
Steering Committee 
SD: 
standard deviation 
SE: 
standard error 
SGLT1: 
sodium-glucose cotransporter type 1 
SGLT2: 
sodium-glucose cotransporter type 2 
SMBG: 
self-monitoring of blood glucose 
SOC: 
system organ class 
SUSAR: 
suspected unexpected serious adverse reaction 
T1D: 
Type 1 diabetes 
T2D: 
Type 2 diabetes 
TEAEs: 
treatment-emergent adverse events 
UACR: 
urine albumin:creatinine ratio 
UGCR: 
urine glucose:creatinine ratio 
UGE: 
urinary glucose excretion 
ULN: 
upper limit of normal 
UTIs: 
urinary tract infections 
VTEs: 
venous thrombotic events 
WOCBP: 
women of childbearing potential 
β-CTX-1: 
beta-C-terminal telopeptide 
 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 28 
4 
INTRODUCTION AND RATIONALE 
4.1 
BACKGROUND: SOTAGLIFLOZIN AND DISEASE 
Sotagliflozin is a dual inhibitor of the sodium-glucose cotransporters type 1 and 2 (SGLT1 and 
SGLT2) being developed for use in Type 2 diabetes (T2D), a metabolic disorder characterized by 
hyperglycemia that results from a combination of increased insulin resistance and beta-cell 
dysfunction (1). The micro vascular complications of diabetes are well known and can result in 
impaired renal function, retinopathy and neuropathy and the macrovascular complications result 
in coronary disease, amputations and stroke. Other comorbidities that are frequently associated 
with diabetes are hypertension, obesity, and cardiovascular (CV) disease. According to the most 
recent International Diabetes Federation Diabetes Atlas, the estimates in 2015 were that 1 in 11 
adults have diabetes, which means 415 million people and estimated to be 642 million by 2040 
(2). 
According to the World Health Organization, there are about 60 million people with diabetes in 
the European Region, or about 10.3% of men and 9.6% of women aged 25 years and over (3). 
While these numbers include both people with T2D and Type 1 diabetes (T1D), over 90% of 
adults with diabetes have T2D. Diabetes is among the leading causes of death by disease and is a 
leading cause of heart disease, stroke, blindness, kidney disease, and amputation (2, 3). Despite 
the fact that the population of people with diabetes is growing, none of the current therapies is 
curative and the results of treatment are variable. 
Despite the numerous treatment options available, monotherapy fails in many patients as beta-cell 
function continues to deteriorate leading to progressively increasing hyperglycemia. Glycemic 
control with the currently available agents often leads to side effects, most notably weight gain 
and an increased frequency of hypoglycemia. These concerns emphasize the need to develop new 
agents that effectively and safely lower glucose in diabetic patients (4). 
The SGLT1 is expressed predominantly in the gastrointestinal (GI) tract; SGLT1 is responsible 
for the majority of glucose absorption by the small intestine (5). Inhibition of SGLT1 in the GI 
tract delays glucose absorption and lowers peak postprandial glucose levels (6). Additionally, 
there is accumulating evidence that SGLT1 inhibition stimulates secretion of glucagon-like 
peptide-1 (GLP-1) and peptide YY (PYY), gut hormones involved in pancreatic beta-cell function 
and appetite control, respectively. Reduced glucose absorption in the proximal intestine leads to 
more glucose being delivered distally, which allows L cells in both the ileum and the colon to 
sense glucose and its byproducts, and as a result, they secrete GLP-1 and PYY. Although a 
complete lack of functional SGLT1 may be associated with symptoms of glucose and galactose 
malabsorption, (7) pharmacologic inhibition of SGLT1 by sotagliflozin has not produced these 
effects in preclinical models or patients with T2D. Selective inhibitors of the SGLT1 transporter 
are in early stages of development. 
Extensive clinical studies conducted for selective sodium-glucose cotransporter type 2 (SGLT2) 
inhibitors have established this class as effective agents for the treatment of T2D (4,8) and have 
led to approvals by the US Food and Drug Administration (FDA) and the European Medicines 
Agency (EMA). Studies with sotagliflozin, a, dual inhibitor of SGLT2 and SGLT1, have shown 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 29 
that this agent produces significant glucosuria in preclinical animal models, healthy human 
volunteers, and patients with T2D. Single- and multiple-dose administration of sotagliflozin to 
healthy human patients has resulted in dose-dependent increases in glucosuria. Multiple-dose 
(28-day) administration in diabetic patients produced improvements in several metabolic 
parameters, including urinary glucose excretion (UGE), fasting plasma glucose (FPG), 
Hemoglobin A1c (HbA1c), GLP-1, and PYY (9). These data suggest that sotagliflozin should be 
of therapeutic benefit to patients with T2D. 
Diabetic nephropathy with advancing duration of diabetes and the treatment of T2D in the face of 
advancing renal insufficiency represents a particular challenge to the clinician. Many agents used 
to treat T2D, including sulfonylurea, metformin and incretin-based insulin secretagogues, can no 
longer be used or must be dosed with caution in the clinical setting of renal insufficiency. 
The glucose lowering efficacy of selective SGLT2 inhibitors will diminish when renal function 
(glomerular filtration rate) diminishes because SGLT2 is located exclusively in the renal tubule 
and selective SGLT2 inhibitors act solely by blocking reabsorption of glucose that has been 
filtered at the glomerulus (6). For this reason the use of dapagliflozin is restricted to patients with 
estimated glomerular filtration rate (eGFR) ≥60 mL/min/1.73 m2 and that of empagliflozin and 
canagliflozin is limited to patients with eGFR ≥45 mL/min/1.73 m2 (10,11,12). Sotagliflozin, in 
contrast, lowers glucose by blocking absorption of glucose in the small intestine (SGLT1) as well 
as by blocking reabsorption at the kidney (SGLT2) and thus would be expected to maintain 
glucose lowering efficacy as renal function diminishes. In fact this was shown to be the case in an 
early Phase 1 trial (LX4211.1-107 DM). Patients with T2D and either chronic kidney disease 
(CKD) stage 3A (eGFR 45-59 mL/min/1.73 m2) or CKD stage 3B (eGFR 30 to 
44 mL/min/1.73 m2) were randomized to sotagliflozin 400 mg once daily or placebo for 7 days 
while being closely monitored, partly as inpatients. 
Sotagliflozin significantly reduced postprandial glucose (PPG) levels relative to placebo in the 
total population and in patients with an eGFR <45 mL/min/1.73m2, with a placebo-adjusted 
decrease in incremental area under the concentration versus time curve (AUC) pre-dose –4 hrs of 
73.5 mg*h/dL (p=0.009) and 137.2 mg*h/dL (p=0.001) for the total population and the eGFR 
<45 mL/ min/1.73 m2 subgroup, respectively. As expected sotagliflozin caused less increase in 
UGE in the CKD stage 3B subsets than in the total population subset (placebo-subtracted increase 
in UGE was 38.7, 53.5, and 20.4 g/24h for the total population, CKD stage 3A subset, and CKD 
stage 3B subset, respectively [p = 0.007 for all 3]). This suggests that something other than 
inhibition of SGLT2 mediated renal glucose absorption is being inhibited by sotagliflozin, eg, 
SGLT1 effect in the GI. In addition, the patients with CKD 4 have decreased insulin clearance and 
better glucose control. These results also suggest that dual SGLT1 and SGLT2 inhibition with 
sotagliflozin could prove useful for the treatment of patients with T2D and renal impairment (13). 
Sotagliflozin has shown effect in patients with renal impairment and SGLT1 inhibition does not 
depend on kidney. The purpose of this study is to evaluate the effects of sotagliflozin in glucose 
lowering in patients with renal impairment. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 30 
4.2 
CLINICAL TRIALS OF SOTAGLIFLOZIN IN HUMANS 
Approximately 840 subjects (698 assigned to sotagliflozin and 229 assigned to placebo) have 
participated in completed clinical studies of sotagliflozin. No significant safety concerns have 
been identified in the sotagliflozin drug program, and sotagliflozin has been well-tolerated in all 
studies to date. Serious adverse events (SAEs) and discontinuations due to adverse events (AEs) 
have been infrequent and have been balanced between treatment and comparator groups. Reports 
of treatment-emergent AEs (TEAEs) across all sotagliflozin studies for which data are available 
were generally balanced between treatment and comparator groups. The most frequently reported 
TEAEs (≥2.0%) were headache, nausea, diarrhea, constipation, dizziness, and upper respiratory 
tract infection, all of which were reported at a frequency greater than placebo. However, the 
majority were described as mild to moderate, and most resolved spontaneously and without 
discontinuation of the study drug. 
In completed and ongoing clinical trials, no additional safety issues beside those already described 
in the current Investigator’s Brochure (IB) have been observed. In general, no significant 
imbalances of SAEs/AEs between sotagliflozin and comparators were observed in completed 
studies. Cumulatively, across the completed studies 8 SAEs were reported in 6 patients (4 T2D 
and 2 T1D), all of which were assessed as unrelated to study drug; those reported in 4 T2D 
patients who received sotagliflozin included pulmonary embolism, deep vein thrombosis, bile 
duct stone, cholangitis and lower limb fracture, while a myocardial infarction (MI) was 
experienced by a patient receiving placebo. Two SAEs of diabetic ketoacidosis (DKA) were 
reported in 2 T1D patients in the ongoing (blinded) Phase 2 T1D study LX4211.1-203-TIDM; 
both SAEs were assessed as due to failure of insulin delivery via insulin pump. 
A drug interaction study with digoxin, a sensitive P-glycoprotein (P-gp) substrate, indicated that 
sotagliflozin acts as a weak P-gp inhibitor. Based on drug-drug interaction studies, the effect of 
sotagliflozin in competing with compounds metabolized with cytochrome P450 (CYP) 3A4 are 
minimal. Sotagliflozin was profiled as perpetrator regarding CYP3A4/5 interaction in INT14972, 
in which a weak induction of CYP3A4/5 was observed at a dose of 400 mg as well as a weak 
inhibition of CYP2D6. These effects were more pronounced at a higher dose of 800 mg. It was 
concluded, that for the vast majority of drugs metabolized predominantly by CYP3A4/5 or 
CYP2D6, the clinical effect is negligible. However, caution is suggested for patients treated with 
narrow therapeutic index drugs. Patients taking sotagliflozin with concomitant digoxin should 
have digoxin concentrations monitored and doses reduced as needed. In addition, other P-gp 
substrates may be affected and the labels of P-gp substrate drugs should be consulted with regards 
to monitoring and dose adjustments. 
In trial 202, it has been demonstrated the systolic blood pressure (SBP) in all the patients was 
decreased by 5.4 mmHg compared to the placebo while the decrease in patients with SBP 
>130 mmHg was 14 mmHg. 
More information on the safety of sotagliflozin and on the clinical program can be found in the 
IB. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 31 
4.3 
RATIONALE FOR SELECTION OF DOSE 
Both the 200 mg and 400 mg doses are being developed in the Phase 3 program for sotagliflozin 
for the treatment of T2D. These doses are being tested in several Phase 3 trials, including the 
current trial in patients with T2D and CKD stage 3. 
The proposed sotagliflozin 200 mg and 400 mg once daily doses are based on the results of the 
Phase 2b study LX4211.1-202-DM. In this study, sotagliflozin doses of 75 mg once daily, 200 mg 
once daily, 200 mg twice daily, and 400 mg once daily were tested over a 12-week, double-blind 
period. The sotagliflozin 200 mg and 400 mg once daily doses were chosen for further evaluation 
based on their HbA1c lowering effects and the overall safety and tolerability observed at these 
doses. At 12 weeks, the 200 mg and 400 mg once daily doses lowered HbA1c by a mean of 0.52% 
and 0.93%, respectively (p <0.001 for both arms), while placebo lowered HbA1c by a mean of 
0.14%. Sotagliflozin also produced statistically significant reductions in body weight (200 mg and 
400 mg doses) and SBP (400 mg dose). 
The overall incidences of AEs on sotagliflozin 200 mg and 400 mg once daily were similar to 
placebo. A maximum dose of sotagliflozin has not been established in terms of either safety or 
HbA1c reduction. 
From a safety perspective, sotagliflozin was well-tolerated across studies. In healthy subjects 
sotagliflozin was well-tolerated following single doses up to 2000 mg, and in multiple doses up to 
800 mg over 10 days. Furthermore, in a thorough QT study, single doses of sotagliflozin (800 mg 
and 2000 mg) were well-tolerated and did not prolong the QT interval. Additionally, evaluation of 
metabolites in urine and plasma of healthy subjects resulted in no safety concerns following single 
doses of 400 mg sotagliflozin. In patients with T2D, single doses of sotagliflozin 400 mg in 
combination with sitagliptin, and multiple doses up to sotagliflozin 400 mg in combination with 
metformin over 12 weeks were also well-tolerated. 
Based on the pharmacokinetic (PK) extrapolation and approximation the safety margin based on 
400 mg multiple dosing in CKD stage 3 patients (eGFR ≥30 to <60 mL/min/1.73m2) is 3-fold and 
in CKD stage 4 patients the margin is 1.9-fold. 
4.4 
RATIONALE FOR STUDY DESIGN AND CONTROL GROUPS 
This study is designed to demonstrate the efficacy and safety of sotagliflozin when used as add-on 
therapy to standard care (any combination of oral agents and/or insulin deemed clinically 
appropriate) in patients with T2D and CKD stage 3A or 3B who have inadequate glycemic 
control. Sotagliflozin 200 mg daily, as well as sotagliflozin 400 mg daily, will be compared to 
placebo in this randomized, double-blind, placebo-controlled, 3-arm, parallel-group trial. The 
protocol stipulates that patients be provided antidiabetic agent rescue therapy according to a 
predefined algorithm. Safety, tolerability, PK, and pharmacodynamic (PD) effects of sotagliflozin 
are supported by Phase 1 and Phase 2 studies and animal toxicology data in rats up to 26 weeks 
and dogs up to 39 weeks as well as 2 year carcinogenicity data in rats. Efficacy and safety in 
patients with CKD stages 3A/3B are supported by 7 day PD and safety data in patients with T2D 
and CKD (Trial LX4211.107). 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 32 
In a Phase 1 trial 31 patients with T2D and eGFR <60 mL/min/1.73 m2 were randomized to 
sotagliflozin or placebo. Despite reduction of more than 50% in UGE, the patients with 
eGFR <45 mL/min/1.73 m2 and patients with eGFR >45 mL/min /1.73 m2 had the same level of 
reduction in the PPG (the primary endpoint).  
Randomization will be stratified by Screening Hb1Ac (≤8.5% and >8.5%), Screening SBP 
(<130 mmHg versus ≥130 mmHg), and CKD stage (3A, 3B) based on Screening eGFR. Since the 
reduction in the SBP for patients with SBP≥130 mmHg was significantly higher than all the 
patients, these patients will be monitored for blood pressure (BP) reduction closely. 
A placebo control will be used to allow for an unbiased assessment of treatment effects and safety 
data. Bias will be minimized by randomizing the patients to treatment groups, blinding the 
patients, the Investigators, and the Sponsor to the treatment allocations, and by adjudicating 
endpoints in a blinded fashion. 
A 2-week Run-in phase has been implemented to stabilize HbA1c and minimize response to 
placebo and effects inherent to participation in a controlled clinical trial. 
Sotagliflozin treatment for 26 weeks is likely to be of sufficient duration to observe effects on 
reduction of HbA1c, BP, and body weight, and is therefore selected as the timepoint for 
assessment of the primary endpoint HbA1c. Treatment up to 52 weeks will provide additional 
long-term data on safety and efficacy. 
Endpoints for evaluating renal function include eGFR, based on serum creatinine, and urine 
albumin to creatinine ratio as well as routine monitoring of urine via dipstick and spot urine 
analyses. At 6 time points during the study (Baseline, Week 2, Week 4, Week 12, Week 26 and 
Week 52), patients will be instructed to bring overnight/first of the day voids. Cystatin C, UGE, 
urine glucose:creatinine ratio (UGCR), and N-terminal prohormone of brain natriuretic peptide 
(NT-proBNP) are other valid markers of renal function and volume status, and will be assessed at 
appropriate timepoints in this study. 
In addition, although clinical outcomes are not expected to occur at a high enough rate to yield 
statistically significant information in this trial, outcomes such as death will be adjudicated by an 
independent adjudication committee. 
4.5 
BENEFIT/RISK OF SOTAGLIFLOZIN 
Sotagliflozin is currently being investigated as an adjunct to diet and exercise to improve 
glycemic control in adults with T2D. The development program will also provide efficacy and 
safety data for sotagliflozin in combination with other antidiabetic medications. Sotagliflozin has 
effects on SGLT2 and SGLT1. Based on the GI contribution of sotagliflozin in reducing the 
glucose through SGLT1 inhibition and the improvement of glycemia caused by the increase in 
half–life of insulin (as a result of decreased renal function), efficacy is expected in advanced CKD 
patients. In addition the clinical outcomes will be evaluated in patients with high CV risk and in 
patients with renal impairment. Results to date from an earlier Phase 1 study also suggest that 
patients with T2D and renal impairment stage 3A and 3B could benefit from dual SGLT1 and 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 33 
SGLT2 inhibition with sotagliflozin as detailed in Section 4.4 without any safety concerns. The 
use of sotagliflozin in the treatment of T1D is also being studied in a separate development 
program. 
Sotagliflozin may benefit a wide variety of diabetic patients based on multiple potential beneficial 
effects of dual SGLT2/SGLT1 inhibition, and its insulin-independent mechanism of action. 
Improvements in HbA1c, FPG, and PPG were observed with sotagliflozin in multiple studies. As 
anticipated from the mechanism of action, treatment with sotagliflozin resulted in increased UGE 
(from inhibition of SGLT2) as well as increased levels of the intestinal peptides GLP-1 and PYY 
(from inhibition of SGLT1). In addition, the improvements in body weight and BP observed with 
sotagliflozin treatment have the potential to benefit patients with diabetes through their effects on 
common diabetic comorbidities. 
Phase 2 data indicated that sotagliflozin may reduce SBP by 10 to 15 mmHg in patients with SBP 
≥130 mmHg at Baseline, while having no significant effect in patients with SBP <130 mmHg, and 
did not induce hypotension in normotensive patients. Since this could be of benefit to patients 
with T2D, this finding is being followed up as a secondary objective in this trial. 
SGLT2 inhibitors class have been associated with small decreases of glomerular filtration rate and 
increased rate of genital infections, which are usually mild and well tolerated in clinical trials. 
Overall, sotagliflozin has been well-tolerated in all studies to date, with the majority of events 
assessed as mild to moderate; most of which resolved spontaneously. Serious AEs and 
discontinuations due to AEs have been limited and balanced between treatment and comparator 
groups. 
Events of special interest (EOSI) are evaluated based on either their potential link to the drug’s 
mechanism of action, events that occur in other SGLT-inhibitor drugs, or regulatory 
interest/guidance for diabetes products, but found not to be in imbalance in clinical trials. In 
addition to the identified and potential risks (genital mycotic infections [male and female], 
metabolic acidosis, DKA, urinary tract infections [UTIs], volume depletion, severe hypoglycemia) 
for the sotagliflozin program, other EOSI have been defined. These EOSI are: major adverse 
cardiac events (MACEs) and other CV events, venous thrombotic events (VTEs), drug-induced 
liver injuries (DILIs)/alanine aminotransferase (ALT) increase >3 times the upper limit of normal 
(ULN), diarrhea, pancreatitis, bone fractures, renal events, malignancies of special interest 
(including but not limited to: breast, bladder, renal cell, Leydig cell, pancreatic, prostate and 
thyroid cancer), and AEs leading to amputation. 
However, reports of these events have been infrequent and have responded to standard treatment. 
The improvement in glycemic control, the reductions in weight and BP, and the tolerability and 
safety profile of sotagliflozin to date, demonstrate a favorable benefit-risk assessment for 
sotagliflozin. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 34 
5 
STUDY OBJECTIVES 
5.1 
PRIMARY 
The primary objective of this study is to demonstrate the superiority of sotagliflozin 400 mg and 
200 mg versus placebo with respect to HbA1c reduction at Week 26 in patients with T2D who 
have inadequate glycemic control and moderate renal impairment. 
5.2 
SECONDARY 
The secondary objectives of this study are: 
• To assess the effects of sotagliflozin 400 mg and 200 mg versus placebo, based on: 
- 
Change from Baseline in FPG at Week 26 
- 
Change from Baseline in body weight at Week 26 
- 
Change from Baseline in SBP at Week 12 for patients with Baseline SBP ≥130 mmHg 
- 
Change from Baseline in SBP at Week 12 for all patients 
- 
Percentage change in urine albumin: creatinine ratio (UACR) from Baseline to 
Week 26 (for patients with Baseline UACR >30 mg/g) 
- 
Proportion of patients with HbA1c <6.5%, <7.0% at Week 26. 
• To evaluate the safety of sotagliflozin 400 mg and 200 mg versus placebo over the 
52 weeks of treatment. 
5.3 
OTHER 
Other objectives of this study are to compare sotagliflozin 400 mg and 200 mg versus placebo 
with respect to: 
• Change from Baseline in SBP at Weeks 26 and 52 for patients with Baseline SBP 
≥130 mmHg 
• Change from Baseline in SBP at Weeks 26 and 52 for all patients 
• Change from Baseline in HbA1c at Week 52 
• Change from Baseline in FPG at Week 52 
• Change from Baseline in body weight at Week 52 
• Change from Baseline in eGFR. 
• Change from Baseline on the following endpoints: 
- 
Cystatin C 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 35 
- 
UGE 
- 
UGCR 
- 
Fructosamine 
- 
NT-proBNP. 
• Progression of kidney disease, based upon changes in eGFR or albuminuria. 
• Change from Baseline to Week 12 in SBP for patients with Baseline SBP <130 mmHg. 
• Change from Baseline to Week 12 in diastolic blood pressure (DBP) for all patients and 
the subset of patients with Baseline DBP ≥80 mmHg. 
• The proportion of patients requiring rescue for hyperglycemia during 26-week 
double-blind Treatment Period. 
• To assess plasma levels of sotagliflozin and sotagliflozin-3-O-glucuronide in the 
sotagliflozin treatment arms. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 36 
6 
STUDY DESIGN 
6.1 
DESCRIPTION OF THE STUDY 
This is a Phase 3, multicenter and multinational, 1:1:1 randomized, double-blind (single-blind 
Run-in phase), placebo-controlled, parallel-group study that is anticipated to enroll approximately 
780 patients. 
The study comprises a 4-week Screening Period (consisting of a Screening phase of up to 2 weeks 
and a 2-week single-blind placebo Run-in phase), a 26-week double-blind Treatment Period, a 
26-week double-blind Extension Period, and a 4-week post-treatment Follow-up Period. 
The study design is presented graphically in Section 1.1. 
6.1.1 Screening Period 
6.1.1.1 Screening phase (Visit 1) 
The Screening phase will last up to 2 weeks. It must be long enough to collect the data required to 
establish whether the patient satisfies the inclusion/exclusion criteria. 
Patients with T2D (14) who have inadequate glycemic control and documented moderate renal 
insufficiency (CKD 3A, 3B; defined by an eGFR) (15) plus who do not have a Screening HbA1c 
of <7.0% or >11% are eligible for enrollment in this study. 
At the Screening Visit after signing of the informed consent form (ICF), eligibility criteria will be 
assessed and Screening assessments will be performed. Women of childbearing potential 
(WOCBP) not willing to use highly effective method(s) of birth control during the study treatment 
period and the follow-up period, or who are unwilling or unable to be tested for pregnancy will be 
excluded from the study; guidance on highly effective contraceptive methods and collection of 
pregnancy information is provided in Appendix A. If another contraceptive method is used (such 
as a barrier method), it should be used in combination with one of the highly effective methods in 
Appendix A (such as oral contraceptive). 
The Interactive Response Technology (IRT); either Interactive Voice Response System or 
Interactive Web Response System) will be contacted at Visit 1 for notification of Screening and 
for patient number allocation. 
6.1.1.2 Run-in phase (Visit 2) 
The Run-in phase will last 2 weeks. Patients will be treated in a single-blind manner with two (2) 
placebo tablets (identical to sotagliflozin 200 mg in appearance) administered once daily during 
the Run-in phase, starting from Visit 2. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 37 
6.1.2 Double-blind Treatment Period (Day 1 to Week 26) 
Eligible patients will be randomized on Day 1 (Visit 3). In order to qualify for randomization, 
patients must also demonstrate compliance during the single-blind placebo Run-in phase based 
upon tablet count (≥80%) and, as assessed, at the Investigator’s discretion. 
Randomization will be stratified by: 
• HbA1c at Screening (≤8.5% and >8.5%) 
• SBP at Screening (<130 mmHg and ≥130 mmHg) 
• CKD stage (3A, 3B) based on Screening eGFR (15)(16)(17). 
Following randomization, patients will be treated in a double-blind manner for 52 weeks. A total 
of approximately 780 patients ≥18 years of age (or ≥ legal age of the majority, whichever is 
greater) are planned to be randomly assigned 1:1:1 to the following 3 treatment groups: 
• Placebo, given as two (2) placebo tablets (identical to sotagliflozin 200 mg in appearance), 
once daily, before the first meal of the day 
• Sotagliflozin 200 mg, given as 2 tablets: 1 sotagliflozin 200 mg tablet and 1 placebo tablet 
(identical to sotagliflozin 200 mg in appearance), once daily 
• Sotagliflozin 400 mg, given as two (2) 200 mg tablets, once daily, before the first meal of 
the day. 
Fasting glucose (plasma or serum) and HbA1c results will be masked to study sites and patients 
after randomization and until study end. To prevent partial unblinding, UGE and UGCR results 
will be masked to study sites and patients, and the central laboratory urine dipstick analysis will 
not include the measurement of urine glucose. 
Quantitative urine glucose, albumin, calcium, phosphorus, magnesium, and creatinine will be 
measured separately at all on-site visits (except for Visits 6, 8, 10, and 12) by the central 
laboratory. 
All visits will be on-site visits. 
If a patient discontinues treatment with investigational medicinal product (IMP) early during the 
Treatment Period, the patient will have Premature End of Treatment (EOT) Visit, and a Follow-up 
Visit, 4 weeks (±5 days) after the last dose of IMP. In addition, every effort will be made to have 
all patients return to the site at the time corresponding to their scheduled visits, particularly the 
Weeks 26 and 52 Visits. 
If a patient does not agree to site visits, he/she will be contacted by telephone to inquire their 
safety information, particularly at the time of the initially scheduled end of study (EOS). 
6.1.3 Double-blind Extension Period (Week 27 to Week 52) 
From Weeks 27 to 52, patients will be in a 26-week double-blind Extension Period. Patients will 
continue to receive the blinded medication (sotagliflozin 400 mg, 200 mg, or placebo) to which 
they were randomized on Day 1. Patients who received rescue medication during the initial 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 38 
26-week Treatment Period will continue on the same rescue medication during the double-blind 
Extension Period (unless the Investigator considers a change necessary for safety reasons). 
If a patient discontinues treatment with IMP early during the Extension Treatment Period, the 
patient will have a Premature EOT Visit, and a Follow-up Visit, 4 weeks after the last dose of 
IMP. In addition, every effort will be made to have all patients return to the site at the time 
corresponding to their scheduled visits, particularly the Week 52 Visit. 
If a patient does not agree to site visits, he/she will be contacted by telephone to inquire about 
their safety status, particularly at the time of the initially scheduled EOS. 
6.1.4 Follow-up Period 
Following the last dose of the IMP (either as scheduled or prematurely), a post-treatment 
follow-up should be scheduled for all patients 28 days (4 weeks) ±5 days after permanent IMP 
discontinuation.  
6.2 
DURATION OF STUDY PARTICIPATION 
6.2.1 Duration of study participation for each patient 
The total duration of the study for each patient will be up to 60 weeks and will include a 
Screening phase of up to 2 weeks, a 2-week single-blind Run-in phase, a 26-week double-blind 
Treatment Period, a 26-week double-blind Extension Period, and a 4-week Follow-up Period after 
completion of study treatment. 
6.2.2 Determination of end of clinical trial (all patients) 
The end of the study is defined as being the “last patient last visit” planned with the protocol, 
including the Follow-up Visit. 
The Sponsor can terminate the trial prematurely based on the advice of the independent Data 
Monitoring Committee (DMC) or other unforeseen developments. 
6.3 
STUDY COMMITTEES 
6.3.1 Steering committee 
The Steering Committee (SC) is composed of experts in diabetes and scientists with clinical and 
methodological expertise. This Committee, led by a Chair, is responsible for producing and 
conducting a scientifically sound study and for ensuring accurate reporting of the study. In that 
capacity, the SC must address and resolve scientific issues encountered during the study. The 
members will remain blinded until completion of the study. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 39 
Among its responsibilities, the SC will receive blinded study status reports from Sponsor, and will 
review the recommendations from the DMC throughout the study. The SC members will 
participate in face-to-face meetings at regular intervals throughout the study and in regularly 
scheduled teleconferences. 
Detailed activities and responsibilities of the SC are provided in a separate SC Charter. 
6.3.2 Data monitoring committee 
A DMC with members who are independent from the Sponsor and the Investigator will meet on a 
regular basis, and will be responsible for: 
• Review of accumulating clinical trial safety data by treatment. 
• Making a recommendation to the Sponsor regarding the study following each meeting. 
Safety data to be reviewed will be unblinded data and include events and outcomes described 
below for adjudication, as well as any additional safety data considered relevant. To maintain 
continuous blinding and study integrity, the analysis will be conducted by an independent 
statistician, and measures will be taken to ensure the validity of the data. 
Details describing the DMC processes and procedures are outlined in a separate DMC Charter. 
6.3.3 Clinical endpoint committee 
The Clinical Endpoint Committees (CECs) is/are comprised of experts in cardiology and 
nephrology (and other appropriate medical specialties such as neurology and endocrinology as 
needed) who are independent of the Sponsor and the contract research organization (CRO). The 
CEC(s) will review and adjudicate all deaths, MACE/selected CV events (MI, stroke, unstable 
angina leading to hospitalization, and heart failure leading to hospitalization), selected renal 
events, bone fracture, and DKA. 
The details regarding the CEC processes and procedures will be outlined in the CEC Charter(s). 
6.3.4 Safety adjudication of events requiring ongoing monitoring 
Two independent committees will review safety events that require ongoing monitoring to ensure 
timing protocol amendments in case a safety signal is identified. These events are: 1) potential 
cases of DILI, and 2) cases of amputations. 
The two committees will review the cases in a treatment-blinded manner and will present their 
assessments to the DMC. 
The members, roles and responsibilities of the two committees will be described in separate 
Charters. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 40 
7 
SELECTION OF PATIENTS 
Note: A patient should not be randomized more than once. In cases where original screen failure 
was due to reasons expected to change at rescreening and based upon the Investigator’s clinical 
judgment, the patient can be rescreened once prior to entering Run-in for this study. 
7.1 
INCLUSION CRITERIA 
I 01. Patients with T2D (drug-naïve or on antidiabetic therapy) and documented moderate renal 
insufficiency defined by an eGFR (based on the 4 variable Modification of Diet in Renal 
Disease [MDRD] equation) of ≥30 and <60 mL/min/1.73 m2 (CKD 3A, 3B). 
I 02. Patient has given written informed consent to participate in the study in accordance with 
local regulations. 
7.2 
EXCLUSION CRITERIA 
Patients who have met all the above inclusion criteria listed in Section 7.1 will be screened for the 
following exclusion criteria which are sorted and numbered in the following 3 subsections: 
7.2.1 Exclusion criteria related to study methodology 
E 01. At the time of Screening age <18 years or < legal age of majority, whichever is greater. 
E 02. Body Mass Index (BMI) ≤20 or >45 kg/m2 at Screening. 
E 03. Use of systemic glucocorticoids (excluding topical, intra-articular, or ophthalmic 
application, nasal spray, or inhaled forms) for more than 10 consecutive days within 
90 days prior to the Screening Visit. 
E 04. Use of weight loss medications within 12 weeks or weight change of 5 kg or more during 
the 12 weeks before Screening. 
E 05. Likelihood of requiring treatment during the study period with drugs not permitted by the 
study protocol (eg, long-term systemic glucocorticoids) and refusing or unable to take 
alternative treatment. 
E 06. Patients who have previously participated in any clinical trial of sotagliflozin/LX4211. 
E 07. Patients with severe anemia, severe CV (including congestive heart failure New York 
Heart Association IV), respiratory, hepatic, neurological, psychiatric, or active malignant 
tumor, or other major systemic disease or patients with short life expectancy that, 
according to the Investigator, will preclude their safe participation in this study, or will 
make implementation of the protocol or interpretation of the study results difficult. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 41 
E 08. Current diagnosis of chronic hepatitis and/or other clinically active liver disease requiring 
treatment. 
E 09. Known presence of factors that interfere with the Central Lab HbA1c measurement (eg, 
genetic Hb variants) compromising the reliability of HbA1c assessment or medical 
conditions that affect interpretation of HbA1c results (eg, blood transfusion or severe blood 
loss in the last 3 months prior to randomization, any condition that shortens erythrocyte 
survival). 
E 10. History of drug or alcohol abuse within 6 months prior to Screening. 
E 11. Patient is an employee of the Sponsor, or is the Investigator or any Sub-investigator, 
research assistant, pharmacist, study coordinator, other staff or relative thereof directly 
involved in conducting the study. 
E 12. Patient who has taken other investigational drugs or prohibited therapy for this study 
within 12 weeks or 5 half-lives from prior to Screening, whichever is longer. Current 
enrollment in any other clinical study involving an investigational study treatment or any 
other type of medical research. 
7.2.2 Exclusion criteria related to the diabetes or CKD history and treatment 
E 13. Type 1 diabetes mellitus. 
E 14. HbA1c <7% or HbA1c >11% measured by the central laboratory at Screening. 
E 15. Oral antidiabetic agent or insulin use if dose not stable for 8 weeks before randomization 
(ie, oral agents changed during past 8 weeks or total daily basal insulin dose increased or 
decreased by more than 20% during the past 4 weeks). 
E 16. Use of a selective SGLT2 inhibitor (eg, canagliflozin, dapagliflozin, or empagliflozin) 
within 12 months prior to the trial. 
E 17. History of DKA or nonketotic hyperosmolar coma within 12 weeks prior to the Screening 
Visit. 
E 18. History of severe hypoglycemia that resulted in unconsciousness, coma or hospitalization 
within 6 months prior to the Screening Visit. 
E 19. Renal disease that required treatment with immunosuppressive therapy within the last 
12 months, or renal transplant or initiation of chronic dialysis within 4 weeks prior to the 
Screening Visit or expected to occur during the study duration. 
E 20. History of hereditary glucose galactose malabsorption or primary renal glucosuria. 
E 21. Chronic dialysis or CKD stage 4 or 5 or requiring chronic dialysis within 6 months of 
Screening. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 42 
E 22. Reversible causes of renal failure such as obstruction within 6 months of Screening. 
7.2.3 Exclusion criteria related to the current knowledge of sotagliflozin 
E 23. Pregnant (confirmed by serum pregnancy test at Screening) or breastfeeding women. 
E 24. Women of childbearing potential not willing to use highly effective method(s) of birth 
control during the study treatment period and the follow-up period, or who are unwilling or 
unable to be tested for pregnancy (see Appendix A), during the study. 
E 25. Mean of 3 separate BP measurements >180 mmHg (SBP) or >100 mmHg (DBP) (with or 
without hypertensive medications). 
E 26. Systolic BP <120 mmHg or DBP <60 mmHg if the patient is on antihypertensive 
medications. 
E 27. History of hypertensive emergency within 12 weeks prior to Screening. 
E 28. History of gastric surgery including history of gastric banding or inflammatory bowel 
disease within 3 years prior to the Screening Visit. 
E 29. Difficulty swallowing such that the patient cannot take the IMP. 
E 30. Known allergies, hypersensitivity, or intolerance to SGLT2 inhibitor or any inactive 
component of sotagliflozin or placebo (ie, microcrystalline cellulose, croscarmellose 
sodium [disintegrant], talc, silicone dioxide, and magnesium stearate [nonbovine]), unless 
the reaction is deemed irrelevant to the study by the Investigator. 
E 31. Laboratory findings with the central lab tests at Visit 1. 
- 
ALT or aspartate aminotransferase (AST) >3 times the ULN 
- 
Total bilirubin >1.5 times the ULN (except in case of Gilbert’s syndrome) 
- 
Neutrophils <1500/mm3 (or according to ethnic group) and/or platelets <100 000/mm3 
- 
Amylase and/or lipase >3 times the ULN. 
E 32. Any country-related specific regulation that would prevent the patient from entering the 
study (eg, individuals committed to an institution by virtue of an order issued either by the 
judicial or the administrative authorities). 
7.2.4 Additional exclusion criteria during or at the end of the Run-in phase before 
Randomization 
E 33. Patients unwilling or unable to perform self-monitoring of blood glucose (SMBG), 
complete the patient diary or comply with study visits and other study procedures as 
required per protocol. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 43 
E 34. Patients insufficiently compliant during Run-in phase. Noncompliance will be based on 
tablet count (<80%) or based on the opinion of the Investigator. 
E 35. Informed consent withdrawal before randomization (patient who is not willing to continue 
or fails to return). 
E 36. Any clinically significant abnormality identified on physical examination, laboratory tests, 
electrocardiogram (ECG) or vital signs at the time of screening or any AE during screening 
period which, in the judgment of the Investigator or any Sub-investigator, would preclude 
safe completion of the study or constrains efficacy assessment. 
E 37. Lower extremity complications (such as skin ulcers, infection, osteomyelitis, and 
gangrene) identified during the Screening period, and still requiring treatment at 
Randomization. 
 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 44 
8 
STUDY TREATMENTS 
8.1 
INVESTIGATIONAL MEDICINAL PRODUCT(S) 
The IMPs are sotagliflozin 400 mg, sotagliflozin 200 mg, and matching placebo. Patients will be 
provided with: 
• Run-in kit containing 1 wallet of 34 placebo tablets (identical to sotagliflozin 200 mg in 
appearance) for the Run-in phase. 
• Treatment kit containing 2 wallets of 38 tablets each (placebo and/or sotagliflozin 200 mg 
tablets) will be dispensed as needed for the duration of the entire 52-week Treatment 
Period, in a double-blind manner. 
Table 1 provides a summary of the IMP (dose and timing). 
Table 1 - Summary of investigational medicinal products during Treatment Period 
IMP: 
Sotagliflozin 200 mg  
Sotagliflozin 400 mg 
Placebo group 
Name of IMP 
Sotagliflozin (SAR439954) 
Sotagliflozin (SAR439954) 
Placebo 
Pharmaceutical Form 
Sotagliflozin (SAR439954) 
will be supplied as 200 mg 
tablets 
Sotagliflozin (SAR439954) 
will be supplied as 200 mg 
tablets 
Placebo will be supplied as 
tablets (identical to 
sotagliflozin in appearance) 
Dose, timing, and route of 
administration 
Sotagliflozin 200 mg group: 
One 200 mg tablet, taken 
orally once daily, before the 
first meal of the day 
One placebo tablet, taken 
orally once daily, before first 
meal of the day 
Sotagliflozin 400 mg 
group: 
Two 200 mg tablets, taken 
orally once daily, before first 
meal of the day  
 
Placebo group: 
Two placebo tablets, taken 
orally once daily, before 
first meal of the day  
 
Duration of treatment 
26-week double-blind 
Treatment Period following 
randomization 
26-week double-blind 
Extension Period 
26-week double-blind 
Treatment Period following 
randomization 
26-week double-blind 
Extension Period 
2 weeks Run-in and 
26 weeks following 
randomization 
26-week double-blind 
Extension Period 
Storage conditions 
Store between +15°C and +30°C (59°F and 86°F) 
8.1.1 Dose reduction 
The dose maintenance will be handled according to the renal function assessed by the creatinine 
measurement throughout the study. If at any visit after Randomization there is a rise in creatinine 
level (see details in Section 10.6.2), the Investigator should ensure that no reasonable explanation 
exists for creatinine increase. Sites will be notified by central laboratory alert if a patient has a 
>50% increase from Baseline level or >50% above the mean of creatinine values from the last 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 45 
2 visits, where Baseline level is defined as the mean of creatinine values obtained at Screening 
and Randomization. The IMP should be stopped for 2 weeks. If at creatinine recheck the patient 
has returned to the below threshold then IMP will be restarted at a reduced dose (ie, dose reduced 
via IRT to 200 mg for patients randomized to 400 mg, maintained to 200 mg for patients 
randomized to 200 mg, and to placebo for patients randomized to placebo). Since IMP received is 
blinded, patients must return to the site and IRT will be contacted for this IMP re-initiation. Dose 
reduction can only be obtained at on-site visit by IRT. If the creatinine does not return to below 
the threshold, the IMP will be permanently discontinued but the patient will be asked to continue 
attending all study visits. 
8.2 
NONINVESTIGATIONAL MEDICINAL PRODUCT 
Noninvestigational medicinal product (NIMP) treatment is defined as the rescue medication(s) 
that will be used to treat hyperglycemia when a patient’s hyperglycemia reaches the rescue 
threshold (see Section 8.2.1 for details). 
8.2.1 Rescue therapy 
The thresholds values are defined as follows, depending on study period: 
• From Baseline Visit (V3, Day 1) to Visit 6 (Week 8) (including value at Visit 6): 
FPG >270 mg/dL (15.0 mmol/L). 
• From Visit 6 (Week 8) to Visit 7 (Week 12) (including value at Visit 7): FPG >240 mg/dL 
(13.3 mmol/L). 
• From Visit 7 (Week 12) up to the EOT Period Visit 11 (Week 52) (including value at 
Visit 11): FPG >200 mg/dL (11.1 mmol/L) or HbA1c ≥8.5% (the 8.5% criterion does not 
apply if the HbA1c decrease from Baseline was ≥1.0%). 
Routine fasting SMBG and central laboratory alerts on FPG (and HbA1c at Week 12 and 
onwards) are set up to ensure that glycemic parameters remain under predefined thresholds. 
• If one fasting SMBG value exceeds the specific glycemic limit on 1 day, the patient 
checks it again during the 2 following days. If all the values in 3 consecutive days exceed 
the specific limit, the patient should contact the Investigator and a central laboratory 
FPG measurement (and HbA1c at Week 12 and onwards) is performed as soon as 
possible, preferably within 7 days to confirm the hyperglycemia. 
• Upon receipt of a central laboratory rescue alert a central laboratory re-test must be 
completed and confirmed as exceeding the criterion for rescue before rescue therapy is 
initiated. The re-test confirmation should be performed as soon as possible, but within 
7 days of receipt by unscheduled visit. 
In the event that a confirmatory FPG and/or HbA1c exceed the threshold, the Investigator should 
ensure that no reasonable explanation exists for insufficient glucose control and in particular that: 
• The increased FPG has been tested at a fasting status (ie, no food intake for ≥8 hours). 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 46 
• IMP is given at the planned dose. 
• Absence of intercurrent disease, which may jeopardize glycemic control (eg, infectious 
disease). 
• Compliance to treatment is appropriate. 
• Compliance to diet and lifestyle is appropriate. 
If any of the above can reasonably explain the insufficient glycemic control, the Investigator 
should consider not initiating rescue medication and should undertake appropriate action, ie: 
• Assess plasma glucose in fasting condition (ie, after at least 8 hours fast). 
• Initiate an evaluation and treatment of intercurrent disease (to be reported in 
AE/concomitant medication parts of the electronic case report form (e-CRF) and the 
medical record). 
• Stress on the absolute need to be compliant with treatment. 
• Organize a specific interview with the patient and a Registered Dietician or other qualified 
nutrition professional and to reinforce on the absolute need to be compliant to diet and 
lifestyle recommendations, and schedule an FPG/HbA1c assessment at the next visit. 
If none of the above mentioned reasons can be found, or if appropriate action fails to decrease 
FPG/HbA1c under the threshold values, rescue medication may be introduced (18). 
• Open label rescue medication(s) to treat hyperglycemia must be in accordance with local 
standard of care and prescribing practice for patients with CKD and will be at the 
discretion of the investigator. Except for SGLT2 inhibitors and medications with specific 
contraindications in renal impairment, any approved medication(s) including oral 
antidiabetic drugs or insulin can be considered with appropriate dose modification as 
indicated. 
• The patient continues the IMP (blinded) and stays in the study in order to collect efficacy 
and safety information. The planned visits and assessments should occur until the last 
scheduled visit. 
• Rescue therapy is considered an NIMP. Rescue therapy is to be reported in the e-CRF. 
This information should include specific drug name, dose, route of administration, and 
frequency. 
If not covered by health insurance, the cost of rescue therapy will be reimbursed where permitted 
by local regulations. 
8.3 
BLINDING PROCEDURES 
8.3.1 Methods of blinding 
To maintain blinding sotagliflozin and their matching placebo tablets (including packaging) will 
be blinded and indistinguishable. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 47 
During the double-blind Treatment Period and double-blind Extension Period, each treatment 
package will be labeled with a number, which is generated by a computer program from Sanofi. 
Investigators will not have access to the randomization (treatment) code except under 
circumstances described in Section 8.3.2. 
The randomization and the treatment allocation will be performed centrally by an IRT. The study 
biostatistician provides the randomization scheme to the IRT. Then, the IRT generates the patient 
randomization list from which it allocates treatment arms to the patients. 
Fasting glucose (plasma or serum) and HbA1c will be masked to study sites and patients after 
randomization and until study end. To prevent partial unblinding, UGE and UGCR results will 
also be masked to study sites and patients. Additionally, urinalysis by dipstick will not include the 
measurement of urine glucose. 
Quantitative urine glucose, albumin, calcium, phosphorus, magnesium, and creatinine will be 
measured separately at all on-site visits (except for Visits 6, 8, 10, and 12) by the central 
laboratory. 
The CEC members will perform adjudication in a blinded manner. 
8.3.1.1 First step data analysis 
The Sponsor representatives that will be involved in the first step analysis will not be involved in 
the conduct of the study from that point forward, and unblinded patient level results at the first 
step analysis will not be provided to the study sites. 
8.3.2 Randomization code breaking during the study 
In case of an AE, the randomization code should only be broken in circumstances when 
knowledge of the IMP is required for treating the patient.  
Code breaking can be performed at any time by using the proper module of the IRT and/or by 
calling any other phone number provided by the Sponsor for that purpose. Code breaking can be 
performed by a local study Investigator, sponsor physician or healthcare professional with direct 
responsibility for patient care. If the blind is broken, the Investigator should document the date, 
time of day and reason for code breaking. The identity of the unblinded personnel, how the code 
was broken, and the treatment kit number should also be recorded. The Sponsor should also be 
informed. If the code is broken by the Investigator, (or other medical doctor in emergency 
situation) the patient must be withdrawn from IMP administration. 
Randomization code breaking will also be performed during the analysis of the Pharmacokinetic 
plasma concentration samples. Only the Project manager and lead scientist at the Bioanalytical 
laboratory will have access to the randomization code to allow for the sorting of the sotagliflozin 
plasma samples. The Bioanalytical lab and responsible personnel will follow the standard 
procedures to ensure the protection of the blind within the Sponsor’s clinical team. The 
randomization code or the individual analytical results will not be disclosed to any clinical team 
personnel prior to the database lock. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 49 
8.5 
PACKAGING AND LABELING 
Packaging will be undertaken in accordance with the administration schedule. The content of the 
labeling is in accordance with the local regulatory specifications and requirements. 
The appropriate number of packages will be dispensed to cover up to the next dispensing visit 
(please refer to Section 1.2). Storage conditions and use-by-end dare are part of the label text. 
Treatment labels will indicate the treatment number (used for treatment allocation and reported in 
the e-CRF. 
8.6 
STORAGE CONDITIONS AND SHELF LIFE 
Investigators or other authorized persons (eg, pharmacists) are responsible for storing the IMP in a 
secure and safe place in accordance with local regulations, labeling specifications, policies, and 
procedures.  
Control of IMP storage conditions, especially control of temperature and instructions for handling 
the Sanofi compound should be managed according to the rules provided by the Sponsor. 
The expiry date and storage conditions are written on the IMP labels. The IMP should be stored 
between +15ºC and +30ºC (59ºF and 86ºF). 
8.7 
RESPONSIBILITIES 
The Investigator, the hospital pharmacist, or other personnel allowed to store and dispense the 
IMP will be responsible for ensuring that the IMP used in the clinical trial is securely maintained 
as specified by the Sponsor or Delegate and in accordance with applicable regulatory 
requirements. 
All IMPs will be dispensed in accordance with the Investigator’s prescription and it is the 
Investigator’s responsibility to ensure that an accurate record of IMP issued and returned is 
maintained. 
Any quality issue noticed with the receipt or use of an IMP (deficiency in condition, appearance, 
pertaining documentation, labeling, expiration date, etc) should be promptly notified to the 
Sponsor or Delegate. Some deficiencies may be recorded through a complaint procedure. 
A potential defect in the quality of IMP may be subject to initiation of a recall procedure by the 
Sponsor. In this case, the Investigator will be responsible for promptly addressing any request 
made by the Sponsor in order to recall the IMP and eliminate potential hazards. 
Under no circumstances will the Investigator supply IMP to a third party (except for direct-to-
patient shipment, for which a courier company has been approved by the Sponsor), allow the IMP 
to be used other than as directed by this clinical trial protocol, or dispose of IMP in any other 
manner. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 50 
8.7.1 Treatment accountability and compliance 
Accounting and compliance for IMPs will be performed at Visit 3 and all subsequent visits. 
The Investigator will check the compliance to the study treatments based on the patient diary and 
will then complete the appropriate site treatment and patient treatment log forms. Returned IMP 
should be counted by site staff. In addition, the dosing information will be recorded on the 
appropriate pages of the e-CRF. 
If compliance is inadequate as determined by the Principal Investigator, patients will be trained 
again and mentored. If suboptimal compliance continues after training and mentoring, patients 
may be discontinued at the discretion of the Principal Investigator after discussion with the 
Sponsor’s/CRO’s medical monitor. 
8.7.2 Return and/or destruction of treatments 
Patients are to return all IMP (unused, in-use or empty wallet[s]) at each on-site visit, or at on-site 
visits after premature treatment discontinuation, as described in Section 1.2. 
At Visit 4 (Week 1), because no IMP re-supply is planned during this visit, patients will be sent 
home after this visit with the in-use wallet dispensed at Randomization. 
Patients are to return all the used, in-use and unused IMP at Visit 11 (or final assessment 
on-treatment visit in case of permanent premature discontinuation). 
All used, partially used or unused IMPs will be retrieved by the Sponsor or Delegate. A detailed 
site and patient treatment log of the returned IMP will be established with the Investigator (or the 
pharmacist) and countersigned by the Investigator and the monitoring team. 
For NIMP not provided by the Sponsor (ie, rescue therapy), tracking and reconciliation is to be 
undertaken by the Investigator (or pharmacist if appropriate) according to the system proposed by 
the CRO. 
8.8 
CONCOMITANT MEDICATION 
A concomitant medication is any treatment received by the patient concomitantly to any IMP. The 
IMP includes sotagliflozin 400 mg, sotagliflozin 200 mg, and matching placebo. 
Background antidiabetic medication: Except for SGLT2 inhibitor (eg, canagliflozin, 
dapagliflozin, or empagliflozin), at the study entry patients can be treated with any injectable or 
oral antidiabetic medication(s) in accordance with the local medical care guidance. The type or 
dose of medication(s) should remain unchanged during the study course. The dose modification or 
discontinuation of an existing antidiabetic medication is allowed for safety concerns at the 
Investigator’s medical judgment. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 51 
All concomitant medications should be documented on the medications page of the e-CRF. This 
includes all NIMP treatments that are taken by the patients at any time during the clinical study, 
beginning at Visit 1. 
Additionally, all medications taken in the 3 months prior to Visit 1 and any prior use of SGLT2 
inhibitor should be reported. 
8.8.1 Prohibited prior and concomitant medications 
During the study Treatment Period, the following medications are prohibited: 
• Initiation of any antidiabetic agents, including oral or injectable antihyperglycemic agents 
other than the IMP and NIMP is not allowed before the rescue therapy. The existing 
background medication (NIMP) should not be modified before the rescue. 
Note: short term use (<10 consecutive days) of the prohibited medication, eg, short-acting 
insulin for treatment of acute illness or surgery is allowed. 
• SGLT2 inhibitors (eg, canagliflozin, dapagliflozin, or empagliflozin) are not allowed for 
rescue.  
• Systemic use of glucocorticoids for more than 10 consecutive days (topical, intra-articular, 
ophthalmic, nasal spray or inhaled applications are allowed). 
• IMPs in any other clinical study. 
• Modification of antihypertensive medication before Week 12 is not allowed unless for 
safety reasons. 
• Initiation of any weight loss drugs (eg, phentermine, orlistat). 
Patients taking sotagliflozin with concomitant digoxin should have digoxin concentrations 
monitored and doses reduced as needed. In addition, other P-gp substrates may be affected and the 
labels of P-gp substrate drugs should be consulted with regards to monitoring and dose 
adjustments. 
Other medications which are unlikely to interfere with the PK or PD of the IMP or confound 
interpretation of the study endpoints are allowed as needed following discussion between the 
Investigator and the Sponsor/CRO. However, doses of chronically administered medicines should 
be kept fixed during the study if at all possible. 
The dose of all antihypertensive agents should be kept constant during the 12 weeks following 
randomization and no antihypertensive agents should be added or withdrawn for the 12 weeks 
following randomization unless it is considered necessary for safety reasons. 
8.8.2 Concomitant diabetes therapy 
Any background antidiabetic therapy (oral or injected including insulin) is permitted with the 
exception of other SGLT2 inhibitors. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 52 
The rescue medication(s) that will be used to treat hyperglycemia (see Section 8.2.1) when a 
patient’s hyperglycemia reaches the rescue threshold is also defined as NIMPs. Except for SGLT2 
inhibitors and medications with specific contraindications in renal impairment, any approved 
medication(s) including oral/subcutaneous antidiabetic drugs or insulin can be prescribed to treat 
the hyperglycemia as long as it is used within labeling guidelines for renal impairment. In 
addition, for patients already prescribed insulin the dose may be increased. If a patient requires 
glycemic rescue, the IMP received during the randomized, double-blind Treatment Period and 
Extension Period should continue and must remain blinded until the end of the study. Background 
medication may need to be adjusted if hypoglycemia occurs. 
8.9 
POSTSTUDY TREATMENT 
Because sotagliflozin may reduce BP, adjustment of antihypertensive medication may be needed 
during the study in patients with hypertension. Conversely, monitoring for an increase in BP 
should be performed after withdrawal of study medication. If the BP is elevated after withdrawal 
of study treatment, the Investigator should consider adding or adjusting antihypertensive 
medication. Sotagliflozin will not be provided after EOT. Patient’s further treatment, for diabetes 
and other pathologies will be at the Investigator’s discretion based on his/her clinical judgment. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 53 
9 
ASSESSMENT OF INVESTIGATIONAL MEDICINAL PRODUCT 
9.1 
EFFICACY ENDPOINT 
9.1.1 Primary efficacy endpoint 
• Change from Baseline to Week 26 in HbA1c (%) comparing sotagliflozin 400 mg versus 
placebo in overall population, and in CKD stages 3A and 3B patients sequentially, then 
comparing sotagliflozin 200 mg versus placebo in overall population, and in CKD stages 
3A and 3B patients sequentially. 
9.1.2 Secondary efficacy endpoints 
To compare sotagliflozin 400 mg and 200 mg versus placebo, respectively, in terms of: 
• Change from Baseline in FPG at Week 26. 
• Change from Baseline in body weight at Week 26. 
• Change from Baseline in SBP at Week 12 for patients with Baseline SBP ≥130 mmHg. 
• Change from Baseline in SBP at Week 12 for all patients. 
• Percentage change in UACR from Baseline to Week 26 for patients with UACR >30 mg/g 
at Baseline. 
• Proportion of patients with HbA1c <6.5%, <7.0% at Week 26. 
9.1.3 Other efficacy endpoints 
To compare sotagliflozin 400 mg and 200 mg versus placebo, respectively, in terms of: 
• Change from Baseline in SBP at Weeks 26 and 52 for patients with Baseline SBP 
≥130 mmHg 
• Change from Baseline in SBP at Weeks 26 and 52 for all patients 
• Change from Baseline in HbA1c at Week 52 
• Change from Baseline in FPG at Week 52 
• Change from Baseline in body weight at Week 52 
• Change from Baseline in eGFR. 
• Proportion of patients requiring rescue for hyperglycemia during 26-week double-blind 
Treatment Period. 
• Change from Baseline in: 
- 
Cystatin C 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 54 
- 
UGE 
- 
UGCR 
- 
Fructosamine 
- 
NT-proBNP. 
• Proportion of patients with progression to end-stage renal disease (ESRD) (dialysis or 
transplant) at Week 4 or any time later during the trial. 
• Proportion of patients with >50% decline in eGFR from Baseline to Week 26 and 
Week 52. 
• Proportion of patients with progression from normal to microalbuminuria or from 
microalbuminuria to macroalbuminuria from Baseline at Week 26 and Week 52. 
• Proportion of patients with improvement from microalbuminuria to normal to or from 
macroalbuminuria to microalbuminuria from Baseline at Week 26 and Week 52. 
• Change from Baseline in SBP at Week 12 for patients with Baseline SBP <130 mmHg. 
• Change from Baseline in DBP at Week 12 for all patients and the subset of patients with 
Baseline DBP ≥80 mmHg. 
9.1.4 Assessment methods of efficacy endpoints 
9.1.4.1 Hemoglobin A1c 
Hemoglobin A1c will be assessed at Screening (Visit 1), Baseline (Visit 3), and all on-site visits 
during the double-blind Treatment Period and Extension Period, with the exception of Run-in 
(Visit 2), Week 2 (Visit 4), and Week 4 (Visit 5). HbA1c is measured by a certified Level I 
“National Glycohemoglobin Standardization Program” central laboratory at time points described 
in the flow chart (Section 1.2). 
9.1.4.2 Blood pressure measurements 
Systolic BP and DBP will be assessed at all on-site visits. Blood pressure measurements must be 
taken as described in Section 9.2.1.5, with details provided in Appendix C. 
9.1.4.3 Body weight measurement 
Body weight is measured at all on-site visits. Body weight should be obtained with the patient 
wearing undergarments or very light clothing and no shoes, and with an empty bladder. The same 
scale should be used throughout the study, and calibrated on a regular basis as recommended by 
the manufacturer. Calibration should be documented in source documents. The use of balance 
scales is recommended; if digital scales are used, testing with standard weights is of particular 
importance. The floor surface on which the scale rests must be hard and should not be carpeted or 
covered with other soft material. The scale should be balanced with both weights at zero and the 
balance bar aligned. The patient should stand in the center of the platform as standing off center 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 55 
may affect measurement. The weights are moved until the beam balances (the arrows are aligned). 
The weight is read and recorded in the e-CRF and Source Data. Self-reported weights are not 
acceptable; patients must not read the scales themselves. 
9.1.4.4 Fasting plasma glucose measurement 
Plasma glucose is measured in the fasting state at Screening (Visit 1) and all on-site visits during 
the double-blind Treatment Period and Extension Period with the exception of Visit 4 (see  
Section 1.2). For the eligibility and efficacy assessments of the study, FPG is measured at a 
central laboratory to allow estimation of change from Baseline to Week 26 and Week 52. 
9.1.4.5 Kidney function parameter assessments 
Serum creatinine and urine albumin, protein, calcium, creatinine, phosphorus, magnesium, and 
glucose will be assessed at Baseline (Visit 3) and selected on-site visits (Section 1.2). A central 
laboratory will analyze samples and estimate change from Baseline in UACR, UGE, UGCR, 
serum creatinine, and eGFR. To prevent partial unblinding, UGE and UGCR results will be 
masked to study sites. 
9.1.4.6 Fructosamine, NT-proBNP and Cystatin C 
Fructosamine is measured in the fasting state at Baseline (Visit 3) and all on-site visits during the 
double-blind Treatment Period and Extension Period with the exception of Week 2 (Visit 4). 
Cystatin C and NT-proBNP are measured in the fasting state at Baseline (Visit 3) and all on-site 
visits during the double-blind Treatment Period and Extension Period with the exception of 
Week 8 (Visit 6) and Week 18 (Visit 8). 
For the eligibility and efficacy assessments of the study, fructosamine, NT-proBNP, and 
cystatin C are measured at a central laboratory to allow estimation of change from Baseline to 
Week 26. 
9.1.4.7 Use of rescue medication for hyperglycemia 
The use of rescue medications for hyperglycemia will be assessed and reported throughout the 
double-blind Treatment Period. Routine alerts on FPG will be sent to the Investigator from the 
central laboratory to ensure that glycemic parameter results remain within predefined thresholds. 
For details and further actions should FPG values fall above thresholds, refer to Section 8.2.1. 
9.1.4.8 Proportion of patients with progression of renal disease 
Patients will be monitored throughout the Treatment Periods for progression of renal disease 
(>50% decline in eGFR, progression from normal to microalbuminuria, and progression from 
microalbuminuria to macroalbuminuria). 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 56 
Patients will be monitored at Week 4, and throughout the remainder of the study for progression 
to ESRD (progression to dialysis either hemodialysis or peritoneal dialysis, or transplant). 
9.2 
SAFETY ENDPOINTS 
Assessments for safety include AEs, SMBG, clinical laboratory assessments, physical 
examination, ECG, weight, and vital signs. An independent DMC will meet on a regular basis to 
review accumulating clinical trial safety data by treatment. 
Adjudication of all deaths, MACE/other selected CV events, selected renal events, bone fracture, 
and DKA will be performed in a blinded manner by a CEC(s) comprised of experts. Details will 
be provided in the charter of the CEC(s). Further details are available in Section 6.3. 
Two expert committees will review all potential cases of DILIs and cases of amputation in a 
treatment-blinded manner to evaluate causality. 
The following safety endpoints will be assessed: 
• Incidence of TEAEs, AEs leading to discontinuation from the IMP, adverse events of 
special interest (AESI), EOSI, SAEs and deaths 
• Hypoglycemia (all, severe and/or documented symptomatic hypoglycemia) 
• Acute renal failure (see Appendix D). 
• Clinical laboratory results (including fasting lipids; see Section 9.2.1.3), vital signs, ECG 
and bone mineral density (BMD) results 
• Markers of intestinal transit and absorption 
• Markers of bone and calcium metabolism. 
Observation period of safety endpoints 
The observation period of safety data will be divided into 3 segments: 
• The pre-Treatment Period is defined as the time between the date of the informed consent 
and the first dose of double-blind IMP 
• The on-Treatment Period (TEAE period) is defined as the time from the first dose of 
double-blind IMP up to 10 days (1 day for hypoglycemia) after the last dose of 
double-blind IMP, regardless of the introduction of rescue therapy. The 10-day interval is 
chosen based on the half-life of the IMP (approximately 5 times the half-life of 
sotagliflozin) in patients with moderate renal dysfunction 
• The post-Treatment Period is defined as the time starting 11 days after the last dose of 
double-blind IMP (after the on-Treatment Period). 
The Baseline value for safety endpoints in the safety population is the last available value (or the 
average of all values for creatinine or eGFR) prior to the first administration of the double-blind 
IMP. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 57 
9.2.1 Assessment methods of safety endpoints 
9.2.1.1 Adverse events 
Adverse events including SAEs, AESI, and EOSI will be assessed. Refer to Section 10.4 through 
Section 10.7. 
9.2.1.1.1 Adverse events of special interest 
Adverse events of special interest are listed in Section 10.4.1.3; reporting requirements for AESIs 
are presented in Section 10.4.4. 
9.2.1.1.2 Events of special interest 
Events of special interest are separate from AESI. For a list of events defined as EOSI and their 
reporting requirements see Section 10.4.1.4 and Section 10.4.5, respectively. 
9.2.1.2 Hypoglycemia 
Hypoglycemia (all, severe and/or documented symptomatic hypoglycemia) will be assessed 
starting with signing of the ICF until 4 weeks after the last dose of IMP. Patients will also 
complete the patient diary, which will be regularly reviewed by Investigators. See Section 10.6.1 
for further details. 
9.2.1.3 Laboratory safety variables 
The clinical laboratory data consist of blood analysis (including hematology and clinical 
chemistry, amylase lipase, and lipid profile) and urinalysis, according to the schedule presented in 
Section 1.2. Clinical laboratory values will be evaluated after conversion into standard 
international units. International units will be used in all listings and tables. Table 2 lists the 
hematology, clinical chemistry, and other blood safety parameters to be assessed by the central 
laboratory. 
In addition, for WOCBP a serum pregnancy test is performed at Screening and urine pregnancy 
tests are taken at all on-site visits during the double-blind Treatment Period, excluding Visit 4 
(Week 2). Any positive urine test results must be confirmed by a serum pregnancy test. The 
Investigator may perform additional tests at their discretion or as required by local regulations. 
For women of nonreproductive potential (Appendix A), follicle-stimulating hormone (FSH) 
and/or estradiol levels should be tested if the definition of postmenopausal or premenopausal 
cannot be satisfied, eg, no medical document of hysterectomy or cessation of menses <12 months 
without an alternative medical cause. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 58 
Table 2 - Blood safety parameters 
Clinical chemistry 
Hematology 
Other blood parameters 
Sodium 
Complete blood count (CBC) 
Lipid profile 
Potassium 
Differential 
Total cholesterol (TC) 
Chloride 
Platelet count 
High-density lipoprotein cholesterol (HDL-C) 
Carbon dioxide (bicarbonate) 
Hemoglobin 
Low-density lipoprotein cholesterol (LDL-C) will be 
calculated by Friedwald equation 
Blood urea nitrogen (BUN) 
Hematocrit 
Non-HDLC will be calculated as the difference between 
TC and HDLC 
Creatinine (eGFR will be 
calculated*) 
 
Triglycerides (TG) 
Glucose (serum) 
 
Markers of Intestinal Transit and Absorptiona 
Alanine aminotransferase (ALT) 
 
Vitamins: B6, B12, K, E, A 
Aspartate aminotransferase (AST) 
 
Serum folate 
Total bilirubin (TB) 
 
Ferritin 
Alkaline phosphatase (ALP) 
 
Markers of bone and calcium metabolisma 
Uric acid 
 
Calcium 
Phosphorus  
 
25-hydroxyvitamin D 
Total protein  
 
1,25-dihydroxyvitamin D 
Albumin  
 
Phosphorus 
Magnesium  
 
Parathyroid hormone (PTH) 
Creatine phosphokinase (CPK) 
 
Markers of bone resorption: N-terminal telopeptide 
(NTX), beta-C-terminal telopeptide (β-CTX-1) 
Lactic acid dehydrogenase (LDH) 
 
Marker of bone formation: type 1 procollagen N-terminal 
(P1NP), osteocalcin 
 
 
Other chemistry tests 
 
 
Amylase 
 
 
Lipase 
All assessments to be performed by central laboratory. All assessment measured in serum. 
a To be collected at Baseline (Visit 3), Week 2 (Visit 4), Week 4 (Visit 5), Week 26 (Visit 9), and Week 52 (Visit 11; end of the Extension 
Period) 
* The recommended equation for estimating eGFR from serum creatinine is the 4 variable Modification of Diet in Renal Disease (MDRD) Study 
equation (16)(17). The IDMS-traceable version of the MDRD Study equation is used. Either equation below may be used based on whether the 
laboratory reports conventional units or Standardized International (SI) units. 
Conventional Units (for use predominantly in the US): http://nkdep.nih.gov/lab-evaluation/gfr-calculators/adults-conventional -unit.asp 
SI Units (for use predominately outside the US): http://nkdep.nih.gov/lab-evaluation/gfr-calculators/adults-SI-units.asp. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 59 
9.2.1.4 Urinalysis 
Urinalysis (urine dipstick with microscopy) by central laboratory will be performed at Run-in 
(Visit 2), Baseline (Visit 3), at all on-site visits during the double-blind Treatment Period, and at 
Week 52 (Visit 11) during the Extension Period. To prevent partial unblinding, the central 
laboratory urine dipstick will not include the measurement of urine glucose. Central urinalysis 
includes: 
• Urine dipstick includes: specific gravity, pH, protein, blood, ketones, bilirubin, 
urobilinogen, nitrite, and leukocyte esterase 
• Urine microscopy includes, but is not limited to: detection of formed cellular elements, 
casts, bacteria, yeast, parasites, and crystals in centrifuged urine sediment. 
In the event of abnormal urinalysis findings suspicious of UTI, urine culture should be performed. 
Positive urine culture determination will be based upon the criteria of the reporting laboratory. 
Additionally, urine culture should be performed if at any point the Principal Investigator suspects 
the presence of a UTI. 
In addition, urine albumin, calcium, phosphorus, glucose, magnesium, and creatinine will be 
assessed at Baseline (Visit 3) and all subsequent on-site visits during the Treatment Period with 
the exception of Week 8 (Visit 6) and Week 18 (Visit 8).  
If the urine dipstick is positive for blood, the central laboratory will perform reflexive testing to 
include microscopy. Additional testing will be performed according to the judgment of the 
Investigator. Referral to urology/urologic evaluation is recommended for new or unexplained 
cases of confirmed hematuria (urology/urologic evaluation is not required where hematuria is 
considered to be related to diabetic nephropathy). 
9.2.1.5 Vital signs and physical exam 
A complete physical exam (including sitting BP and heart rate [HR], temperature, and respiratory 
rate) will be performed at Visit 1 (Screening), Visit 9 (Week 26), and Visit 11 (Week 52). 
Abbreviated physical exams (including sitting BP and HR) will be performed at Visits 2, 3, and 4 
(Weeks -2, 0, and 2, respectively), and at the Follow-up Visit (Visit 12, Week 56). The 
abbreviated physical exam should focus on cardiac and respiratory systems, as well as any areas 
important for assessment of AEs, if necessary. 
Vital signs, including: sitting BP and HR will be assessed at Screening and Run-in (Visits 1 and 
2), and all on-site visits. Three separate seated BP and HR measurements should be taken with at 
least 1 minute between readings, following a 5-minute rest period, and prior to phlebotomy. Full 
details and directions for the measurement of BP are presented in Appendix C. 
9.2.1.6 Electrocardiogram variables 
The ECG assessments will be evaluated as “normal” or “abnormal”. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 60 
A 12-lead ECG record is performed locally at Run-in (Visit 2), Week 26 (Visit 9), and Week 52 
(Visit 11). 
The 12-lead ECG should be performed after at least 10 minutes in supine position and prior to the 
morning IMP administration. The Investigator should review the ECG and document the 
interpretation, sign and date it on the ECG print out and report it in the e-CRF. Each ECG trace is 
analyzed in comparison with the Screening recorded trace. All original traces are kept as source 
data. 
Note: Any new ECG abnormality should be rechecked for confirmation and reported as 
appropriate for that finding. 
9.2.1.7 Bone Mineral Density 
Bone mineral density of femoral neck, lumbar spine and total hip will be assessed in all patients at 
Baseline (Week 0, Day 1 ±7 days) and at Visit 11 (Week 52, Day 364 ±7 days) using dual-energy 
X-ray absorptiometry (DEXA). Bone mineral density assessments will be performed locally with 
central reading. All DEXA scans will be retained as source data. 
9.2.1.8 Self-monitoring of blood glucose 
A meter for self-assessment of blood glucose will be dispensed at Run-in (Visit 2). In addition to 
home measurements of SMBG, SMBG will be performed at Run-in (Visit 2), Baseline (Visit 3) 
and all subsequent on-site visits with the exception of Week 2 (Visit 4). 
Patients will also receive a patient diary at all on-site visits from Visit 1 to Visit 9. The diary will 
be reviewed at all on-site visits from Visit 2 to Visit 12, with the exception of Visit 11. 
Self-assessed blood glucose levels will be entered into the patient diary. 
Patients will be asked to self-assess blood glucose levels at least 3 times a week from the Run-in 
Visit (Visit 2) to the end of treatment, Visit 11. 
Patients will be requested to self-assess blood glucose levels in the fasted state and whenever they 
experience any illnesses (eg, cold, flu), or symptoms of hyperglycemia or hypoglycemia. 
Symptoms of hypoglycemia may include shakiness, dizziness, sweating, hunger, headache, pale 
skin color, sudden moodiness or behavior changes (such as crying for no apparent reason), clumsy 
or jerky movements, seizure, difficulty paying attention or confusion, or tingling sensations 
around the mouth. Patients will be instructed to record the presence or absence of hypoglycemic 
episodes or hypoglycemic symptoms in the patient diary provided. 
Patients will also be instructed to record SMBG values that are ≤70 mg/dL (≤3.9 mmol/L) in the 
patient diary. Patients should be instructed to contact the site if fasting SMBG values over 
3 consecutive days are: 
• FPG >270 mg/dL (15.0 mmol/L) from Baseline Visit (Visit 3, Day 1) to Visit 6 (Week 8) 
(including value at Visit 6) 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 61 
• FPG >240 mg/dL (13.3 mmol/L) from Visit 6 (Week 8) to Visit 7 (Week 12) (including 
value at Visit 7) 
• FPG/fasting SMBG >200 mg/dL (11.1 mmol/L) from Visit 7 (Week 12) up to the EOT 
Period Visit 11 (Week 52) (including value at Visit 11) or HbA1c ≥8.5% (the 8.5% 
criterion does not apply if the HbA1c decrease from Baseline was ≥1.0%). 
9.3 
OTHER ENDPOINTS 
9.3.1 Pharmacokinetics of sotagliflozin 
The PK endpoints for sotagliflozin are: 
• Plasma levels of sotagliflozin and sotagliflozin-3-O-glucuronide in the sotagliflozin 
treatment arms 
Pharmacokinetic sotagliflozin data may be subjected to a population PK analysis, which will be 
reported separately to the clinical study report (CSR). 
9.3.1.1 Sampling time 
At Weeks 4, 18, 26, and 52 (Visits 5, 8, 9, and 11, respectively), blood samples for PK assessment 
are to be drawn with the other laboratory assessments, prior to administration of IMP. An 
additional blood sample will be drawn at Week 26 (Visit 9) and Week 52 (Visit 11), 3 hours after 
administering the dose of IMP. The time of the last intake of study drug prior to visits were PK 
samples are taken should be recorded by the patient in the patient diary. Patients should be 
reminded of this at visits preceding PK time points to ensure these details are captured. In the case 
of premature IMP discontinuation, PK samples should not be drawn at the Premature EOT Visit, 
or at subsequent visits. See Table 3 for identification samples. 
Table 3 - Sotagliflozin samples identification 
Visit 
Week 
Relative to dosing 
PK 
Visit 5 
Week 4 
Pre-dose 
P00 
Visit 8 
Week 18 
Pre-dose 
P01 
Visit 9 
Week 26 
Pre-dose 
P02 
Visit 9 
Week 26 
3 hours post-dose 
P03 
Visit 11 
Week 52 
Pre-dose 
P04 
Visit 11 
Week 52 
3 hours post-dose 
P05 
PK: pharmacokinetic 
9.3.1.2 Pharmacokinetics handling procedure 
Detailed procedures for sample preparation, storage and shipment are described in the specific 
laboratory manual developed by the central laboratory. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 64 
The other efficacy and safety assessments in this study are standard, well-established 
measurements for a Phase 3 study evaluating the treatment of T2D in adult participants. 
The length of the study is considered appropriate for detection of the primary endpoint given the 
power estimates (see Section 11.1). 
Phase 2 data indicated that sotagliflozin may reduce SBP by 10 to 15 mmHg in patients with SBP 
≥130 mmHg at Baseline, while having no significant effect in patients with SBP <130 mmHg, and 
did not induce hypotension in normotensive patients. Since this could be of benefit to patients 
with T2D, this finding is being followed up as a secondary objective in this trial, as well as the 
potential in patients with DBP >80 mmHg. Although effects on BP in Phase 2 data were observed 
with the 400 mg dose at 12 weeks, the effects will be examined at Weeks 12, 26, and 52. 
Because of potential effects on bone and calcium metabolism, bone density will be measured in 
all patients in this trial at Baseline and Week 52, and specific biomarkers for bone and calcium 
metabolism will be assessed at regular timepoints. In view of the SGLT1 inhibitory effects in the 
GI tract, specific markers of intestinal transit and absorption will also be measured. Because of rat 
toxicology studies of questionable clinical significance showing tubule dilation in the kidney, high 
bone density in the sternum, and hyperplasia of stomach glandular cells, the biomarkers for urine, 
bone, and GI tract will also be measured at early timepoints of 2 and 4 weeks. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 65 
10 
STUDY PROCEDURES 
10.1 
VISIT SCHEDULE 
The visit schedule and procedures/assessments are listed in the Study Flow Chart (Section 1.2). 
The aim of this section is to provide details on how some of the procedures/assessments should be 
performed. 
This is an out-patient study and consists of 12 on-site visits, although optional on-site and/or 
telephone visits can be scheduled at any time for any reason during the study whenever 
considered necessary by the Investigator. 
The patients need to be fasting for on-site visits Visit 1 through Visit 11 (Week -4 through 
Week 52), unless instructed otherwise by the Investigator. Throughout the study, “fasting” is 
defined as 8 hours without food. Note: If the patient is not fasting at the visits specified above, the 
blood sample will not be collected and a new appointment should be given to the patient for the 
following day if possible, with instruction to be fasted (other procedures can be performed as 
scheduled). All laboratory assessments will occur prior to IMP administration on the day of the 
visit. 
The Run-in visit (Visit 2) can be performed as soon as the results of all Screening tests are 
available and the patient is confirmed to be eligible for participation in the study. The visit 
window for on-treatment Visit 4 through Visit 11 should occur at the schedule ±5 days. Visit 11 
(EOT) should occur during Day 364 to 369. For the Follow-up (Visit 12), the visit window should 
occur within ±5 days, 4 weeks after last dose of IMP. 
If one visit date is changed, the next visit should occur according to the original schedule, ie, 
calculated from the date of Baseline visit (Visit 3, Week 0). 
For a complete list of procedures scheduled for each study visit please refer to the Study Flow 
Chart (Section 1.2), which details the procedures to be performed. 
All data obtained during the study visits are reviewed by the Investigator and Sub-Investigators 
who are qualified in treatment of T2D and are trained on the study. 
10.1.1 Screening Period 
The Screening Period is up to 4 weeks and includes the Screening phase and the Run-in phase. 
10.1.1.1 Screening phase 
The Screening phase will be up to 2 weeks in duration and includes Visit 1 (Week -4) only. It 
must be long enough to collect the data to establish whether the patient satisfies the 
inclusion/exclusion criteria. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 67 
- 
HbA1c 
- 
Serum pregnancy testing for WOCBP or 
- 
Serum FSH and estradiol (for women of nonreproductive potential if definition of 
postmenopausal or premenopausal cannot be satisfied, see Appendix A) 
- 
Clinical chemistry (including amylase, lipase, and uric acid) and hematology. 
• AEs/SAEs/AESI/EOSI and hypoglycemia (if any) are reported. 
• Patients are instructed to return to the site in the fasting state for Visit 2 (Week -2). 
10.1.1.2 Run-in phase 
The Run-in phase is 2 weeks and includes Visit 2 (Week -2). 
10.1.1.2.1 On-site Visit 2 (Run-in, Week -2) 
The following procedures/assessments will be performed at Visit 2 (Week -2): 
• Measurement of body weight. 
• Abbreviated physical examination (The abbreviated physical examination should focus on 
cardiac and respiratory systems, as well as any areas important for assessment of AEs, if 
necessary) and vital signs (SBP and DBP, and HR). After 5 minutes resting, seated SBP, 
DBP, and HR will be assessed 3 times with at least 1 minute between each measurement 
(see Appendix C for details). 
• Diet and exercise instruction. 
• Blood glucose meter is dispensed and instructions/training are provided. 
• Patient diary is collected and reviewed and a new one dispensed. Instructions/training are 
provided as needed. 
• IRT to be notified (registration of Run-in, allocation of single-blind Run-in kit). 
• Instruction on basic GU hygiene and hydration (see Appendix B). 
• AEs/SAEs/AESI/EOSI and hypoglycemia occurring since Visit 1 (if any) are reported. 
• Run-in kit/placebo is dispensed. 
• Changes in concomitant medication are reported. 
• 12-lead ECG. 
• Fasting SMBG is assessed. 
• Urinalysis (dipstick and microscopy). 
• Patients are instructed to return to the site in the fasting state with used/not-used 
single-blind Run-in kit for Visit 3 (Randomization). 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 68 
10.1.2 Double-blind randomized Treatment Period (Day 1 to Week 26) 
Upon successful completion of the Run-in phase, patients will be randomly allocated to either 
sotagliflozin 400 mg, sotagliflozin 200 mg or matching placebo for the 26-week double-blind 
Treatment Period. All randomized patients will be followed at regular on-site visits for the 
duration of the Treatment Period. 
In addition to routine laboratory testing, the following will be performed at specified time points: 
sotagliflozin concentration; markers of intestinal transit and absorption; markers of bone and 
calcium metabolism; collection of home urine for albumin, calcium, phosphorus, magnesium, 
glucose, and creatinine, and albumin creatinine ratio. 
The date and time of the last intake of IMP prior to visits where PK samples are taken should be 
recorded by the patient in the patient diary. Patients should be reminded of this at visits preceding 
PK time points to ensure these details are captured. 
In the event of abnormal urinalysis findings suspicious of UTI, urine culture should be performed. 
Positive urine culture determination will be based upon the criteria of the reporting laboratory. 
Additionally, urine culture should be performed if at any point the Principal Investigator suspects 
the presence of a UTI. 
10.1.2.1 On-site Randomization Visit 3 on Day 1 (Baseline; Week 0) 
The following procedures will be performed at this visit: 
• Exclusion criteria are to be reviewed, including assessment of compliance during Run-in 
phase. 
• Concomitant medications are assessed. 
• Measurement of body weight. 
• Abbreviated physical examination (The abbreviated physical examination should focus on 
cardiac and respiratory systems, as well as any areas important for assessment of AEs, if 
necessary) and vital signs (After 5 minutes resting, seated SBP, DBP, and HR will be 
assessed 3 times with at least 1 minute between each measurement (see Appendix C for 
details). 
• IMP accountability and compliance for single-blind placebo Run-in treatment. 
• IRT to be notified and randomization will occur. 
• AEs/SAEs/AESI/EOSI and hypoglycemia (if any) are reported. 
• Diet and exercise instruction. 
• Patient diary is collected and reviewed and a new one is dispensed. Instructions/training 
are provided as needed. 
• Instructions on DKA symptoms and basic GU hygiene and hydration (see Appendix B) is 
provided. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 69 
• Fasting SMBG is assessed. 
• Patients are evaluated for glycemic rescue (see Section 8.2.1). 
• Evaluate for 50% increase in creatinine. 
• The following laboratory testing (by the central laboratory): 
- 
FPG 
- 
HbA1c 
- 
Urine pregnancy testing for WOCBP 
- 
Clinical chemistry (including amylase, lipase, fasting lipids, and uric acid) and 
hematology 
- 
Cystatin C 
- 
Fructosamine 
- 
NT-proBNP 
- 
Urinalysis (dipstick and microscopy) 
- 
Urine albumin, calcium, phosphorus, glucose, and creatinine 
- 
Collection of home urine for analysis of albumin, creatinine, calcium, phosphorus, 
magnesium, and albumin creatinine ratio. 
• Additional laboratory testing at this visit: 
- 
Markers of intestinal transit and absorption (vitamins B6, B12, K, E, and A, serum 
folate, and ferritin) 
- 
Markers of bone and calcium metabolism: serum calcium (adjusted for creatinine), 
serum 25 hydroxyvitamin D, serum 1,25-dihydroxyvitamin D, serum phosphorus 
(adjusted for phosphorus), serum magnesium, serum parathyroid hormone (iPTH), 
markers of bone resorption (serum N-terminal telopeptide (NTX, serum 
beta-C-terminal telopeptide (β-CTX-1) and bone formation (serum type 1 procollagen 
N terminal (P1NP) and osteocalcin), and serum alkaline phosphatase (ALP) 
- 
 
- 
 
• Assessment of BMD in all patients. BMD will be assessed locally (with central reading) 
on Day 1, with a window of ±7 days for this assessment. 
• IMP is dispensed. 
• Patients are instructed to return to the site in the fasting state for their next visit (Visit 4; 
Week 2). 
• Patients should be reminded to record the time of study drug intake on the day before their 
next visit. 
• For accountability and compliance purposes, patients are instructed to return to the site 
with their used, in-use and not-used wallet(s) dispensed during Visit 3. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 70 
10.1.2.2 On-site visit at Week 2 (Visit 4) 
The following procedures will be performed at this visit: 
• Measurement of body weight. 
• Abbreviated physical examination (The abbreviated physical examination should focus on 
cardiac and respiratory systems, as well as any areas important for assessment of AEs, if 
necessary) and vital signs (after 5 minutes resting, seated SBP, DBP, and HR will be 
assessed 3 times with at least 1 minute between each measurement (see Appendix C for 
details). 
• IMP accountability and compliance for double-blind IMP. 
• AEs/SAEs/AESI/EOSI and hypoglycemia (if any) are reported. 
• Patients evaluated for glycemic rescue (see Section 8.2.1). 
• Evaluate for 50% increase in creatinine. 
• Diet and exercise instruction. 
• Patient diary is collected and reviewed and a new one is dispensed. Instructions/training 
are provided as needed. 
• The following laboratory testing (by the central laboratory): 
- 
Clinical chemistry (including amylase, lipase, and uric acid) and hematology 
- 
Cystatin C 
- 
NT-proBNP 
- 
Urinalysis (dipstick and microscopy) 
- 
Collection of home urine for analysis of albumin, creatinine, calcium, phosphorus, 
magnesium, glucose, and albumin creatinine ratio. 
• Additional laboratory testing at this visit: 
- 
Markers of intestinal transit and absorption (vitamins B6, B12, K, E, and A, serum 
folate, and ferritin) 
- 
Markers of bone and calcium metabolism: serum calcium (adjusted for creatinine), 
serum 25 hydroxyvitamin D, serum 1,25-dihydroxyvitamin D, serum phosphorus 
(adjusted for phosphorus), serum magnesium, iPTH, markers of bone resorption 
(serum NTX, serum β-CTX-1) and bone formation (serum P1NP and osteocalcin), and 
serum ALP. 
• Patients are instructed to return to the site in the fasting state for their next visit (Visit 5; 
Week 4). 
• Patients should be reminded to record the time of study drug intake on the day before their 
next visit. 
• For accountability and compliance purposes, patients are instructed to return to the site 
with their kit(s) at the next visit. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 71 
10.1.2.3 On-site visits at Week 4 to Week 18 (Visit 5 to Visit 8) 
The following procedures will be performed at Visit 5 (Week 4), Visit 6 (Week 8), Visit 7 
(Week 12), and Visit 8 (Week 18), unless indicated otherwise: 
• Concomitant medications are assessed. 
• Measurement of body weight. 
• Vital signs. After 5 minutes resting, seated SBP, DBP, and HR will be assessed 3 times 
with at least 1 minute between each measurement (see Appendix C for details). 
• IMP accountability and compliance for double-blind IMP. 
• IRT to be notified IMP for re-supply. 
• AEs/SAEs/AESI/EOSI and hypoglycemia (if any) are reported. 
• Patients evaluated for glycemic rescue (see Section 8.2.1). 
• Evaluate for 50% increase in creatinine. 
• Diet and exercise instruction (Visit 5 only). 
• Patient diary is collected and reviewed and a new one is dispensed. Instructions/training 
are provided as needed. 
• Instructions on DKA symptoms and basic GU hygiene and hydration (see Appendix B) is 
provided. 
• Fasting SMBG is assessed. 
• The following laboratory testing (by the central laboratory): 
- 
FPG 
- 
HbA1c (with the exception of Visit 5) 
- 
Urine pregnancy testing for WOCBP 
- 
Clinical chemistry (including amylase, lipase and uric acid). Hematology at Visit 5 and 
Visit 7 only 
- 
Cystatin C (Visit 5 and Visit 7 only) 
- 
Fructosamine  
- 
NT-proBNP (Visit 5 and Visit 7 only) 
- 
Urinalysis (dipstick and microscopy) 
- 
Urine albumin, calcium, phosphorus, glucose, and creatinine 
- 
Collection of home urine for analysis of albumin, creatinine, calcium, phosphorus, 
magnesium, glucose, and albumin creatinine ratio (Visit 5 and Visit 7 only). 
• 
Additional laboratory testing at this visit: 
- 
Markers of intestinal transit and absorption (vitamins B6, B12, K, E, and A, serum 
folate, and ferritin) (Visit 5 only) 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 72 
- 
Markers of bone and calcium metabolism: serum calcium (adjusted for creatinine), 
serum 25 hydroxyvitamin D, serum 1,25-dihydroxyvitamin D, serum phosphorus 
(adjusted for phosphorus), serum magnesium, serum iPTH, markers of bone resorption 
(serum NTX, serum β-CTX-1) and bone formation (serum P1NP and osteocalcin), and 
serum ALP (Visit 5 only) 
- 
 
• PK (plasma concentration samples for sotagliflozin and sotagliflozin-3-O-glucuronide) 
(Visit 5 and Visit 8, only). 
• IMP is dispensed. 
• Patients are instructed to return to the site in the fasting state for each subsequent visit. 
• Patients should be reminded to record the time of study drug intake on the day before their 
next visit.  
• For accountability and compliance purposes, patients are instructed to return to the site 
with their kit(s) dispensed during the previous visit. 
10.1.2.4 On-site visit at Week 26 (Visit 9) 
The following procedures will be performed at this visit: 
• Concomitant medications are assessed. 
• Measurement of body weight. 
• Complete physical examination. Vital signs. After 5 minutes resting, seated SBP, DBP, 
and HR will be assessed 3 times with at least 1 minute between each measurement (see 
Appendix C for details). 
• IMP accountability and compliance for double-blind IMP. 
• IRT to be notified IMP for re-supply. 
• AEs/SAEs/AESI/EOSI and hypoglycemia (if any) are reported. 
• Patients evaluated for glycemic rescue (see Section 8.2.1). 
• Evaluate for 50% increase in creatinine. 
• Diet and exercise instruction. 
• Patient diary is collected and reviewed and a new one is dispensed. Instructions/training 
are provided as needed. 
• Instructions on DKA symptoms and basic GU hygiene and hydration (see Appendix B) is 
provided. 
• Fasting SMBG is assessed. 
• 12-lead ECG. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 73 
• The following laboratory testing (by the central laboratory): 
- 
FPG 
- 
HbA1c 
- 
Urine pregnancy testing for WOCBP 
- 
Clinical chemistry (including amylase, lipase, fasting lipids, and uric acid) and 
hematology 
- 
Cystatin C 
- 
Fructosamine 
- 
NT-proBNP 
- 
Urinalysis (dipstick and microscopy) 
- 
Urine albumin, calcium, phosphorus, glucose, and creatinine 
- 
Collection of home urine for analysis of albumin, creatinine, calcium, phosphorus, 
magnesium, glucose, and albumin creatinine ratio. 
• Additional laboratory testing at this visit: 
- 
Markers of intestinal transit and absorption (vitamins B6, B12, K, E, and A, serum 
folate, and ferritin) 
- 
Markers of bone and calcium metabolism: serum calcium (adjusted for creatinine), 
serum 25 hydroxyvitamin D, serum 1,25-dihydroxyvitamin D, serum phosphorus 
(adjusted for phosphorus), serum magnesium, iPTH, markers of bone resorption 
(serum NTX, serum β-CTX-1) and bone formation (serum P1NP and osteocalcin), and 
serum ALP 
- 
 
• Pre-dose PK (plasma concentration sample for sotagliflozin and 
sotagliflozin-3-O-glucuronide); an additional blood sample will be collected 3 hours after 
IMP administration for the assessment of creatinine (for eGFR) and for assessing plasma 
concentration of sotagliflozin and sotagliflozin-3-O-glucuronide. 
• IMP is dispensed 
• Patients are instructed to return to the site in the fasting state for Visit 10 (Week 39). 
• For accountability and compliance purposes, patients are instructed to return to the site 
with their kit(s) dispensed during the previous visit. 
10.1.3 Double-blind Extension Period (Week 27 to Week 52) 
From Weeks 27 to 52, patients will be in a 26-week double-blind Extension Period, which 
includes 2 on-site visits, at Week 39 (Visit 10) and Week 52 (Visit 11). Patients will continue to 
receive the blinded medication (sotagliflozin 400 mg, sotagliflozin 200 mg, or placebo) to which 
they were randomized on Day 1. All randomized patients will be followed at regular on-site visits 
for the duration of the Extension Period. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 74 
In addition to routine laboratory testing, the following will be performed at specified time points: 
sotagliflozin concentration; markers of intestinal transit and absorption; markers of bone and 
calcium metabolism; urine albumin, calcium, glucose, and creatinine. 
The date and time of the last intake of IMP prior to visits where PK samples are taken should be 
recorded by the patient in the patient diary. Patients should be reminded of this at visits preceding 
PK time points to ensure these details are captured. 
In the event of abnormal urinalysis findings suspicious of UTI, urine culture should be performed. 
Positive urine culture determination will be based upon the criteria of the reporting laboratory. 
Additionally, urine culture should be performed if at any point the Principal Investigator suspects 
the presence of a UTI. 
10.1.3.1 On-site visit at Week 39 (Visit 10) 
The following procedures will be performed at this visit: 
• Concomitant medications are assessed. 
• Measurement of body weight. 
• Vital signs. After 5 minutes resting, seated SBP, DBP, and HR will be assessed 3 times 
with at least 1 minute between each measurement (see Appendix C for details). 
• IMP accountability and compliance for IMP. 
• IRT to be notified IMP for re-supply. 
• AEs/SAEs/AESI/EOSI and hypoglycemia (if any) are reported. 
• Patients evaluated for glycemic rescue (see Section 8.2.1). 
• Evaluate for 50% increase in creatinine. 
• Diet and exercise instruction. 
• Patient diary is collected and reviewed and a new one is dispensed. Instructions/training 
are provided as needed. 
• Instructions on DKA symptoms and basic GU hygiene and hydration (see Appendix B) is 
provided. 
• Fasting SMBG is assessed. 
• The following laboratory testing (by the central laboratory): 
- 
FPG 
- 
HbA1c 
- 
Urine pregnancy testing for WOCBP 
- 
Clinical chemistry (including amylase, lipase, fasting lipids, and uric acid) and 
hematology 
- 
Cystatin C 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 75 
- 
Fructosamine 
- 
NT-proBNP. 
• Patients are instructed to return to the site in the fasting state for Visit 11 (Week 52). 
• For accountability and compliance purposes, patients are instructed to return to the site 
with their kit(s) dispensed during the previous visit. 
10.1.3.2 On-site visit at Week 52 (Visit 11) – End of Treatment 
The following procedures will be performed at this visit: 
• Concomitant medications are assessed. 
• Measurement of body weight. 
• Complete physical examination. Vital signs. After 5 minutes resting, seated SBP, DBP, 
and HR will be assessed 3 times with at least 1 minute between each measurement (see 
Appendix C for details). 
• IMP accountability and compliance for double-blind IMP. 
• IRT to be notified. 
• AEs/SAEs/AESI/EOSI and hypoglycemia (if any) are reported. 
• Patients evaluated for glycemic rescue (see Section 8.2.1). 
• Evaluate for 50% increase in creatinine. 
• Patient diary is collected and reviewed and a new one is dispensed. Instructions/training 
are provided as needed. 
• Fasting SMBG is assessed. 
• 12-lead ECG. 
• The following laboratory testing (by the central laboratory): 
- 
FPG 
- 
HbA1c 
- 
Urine pregnancy testing for WOCBP 
- 
Clinical chemistry (including amylase, lipase, fasting lipids, and uric acid) and 
hematology 
- 
Cystatin C 
- 
Fructosamine 
- 
NT-proBNP 
- 
Urinalysis (dipstick and microscopy) 
- 
Urine albumin, calcium, phosphorus, glucose, and creatinine 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 76 
- 
Collection of home urine for analysis of albumin, creatinine, calcium, phosphorus, 
magnesium, glucose, and albumin creatinine ratio. 
• Additional laboratory testing at this visit: 
- 
Markers of intestinal transit and absorption (vitamins B6, B12, K, E, and A, serum 
folate, and ferritin) 
- 
Markers of bone and calcium metabolism: serum calcium (adjusted for creatinine), 
serum 25 hydroxyvitamin D, serum 1,25-dihydroxyvitamin D, serum phosphorus 
(adjusted for phosphorus), serum magnesium, serum iPTH, markers of bone resorption 
(serum NTX, serum β-CTX-1) and bone formation (serum P1NP and osteocalcin), and 
serum ALP. 
• Pre-dose PK (plasma concentration sample for sotagliflozin and 
sotagliflozin-3-O-glucuronide); an additional blood sample will be collected 3 hours after 
IMP administration for the assessment of creatinine (for eGFR) and for assessing plasma 
concentration of sotagliflozin and sotagliflozin-3-O-glucuronide. 
• Assessment of BMD in all patients. BMD will be assessed locally (with central reading) 
on Day 364, with a window of ±7 days for this assessment. 
• Patients are instructed to return to the site in the fasting state for Visit 12 (Week 56). 
10.1.4 Post-treatment Follow-up Period 
The post-treatment Follow-up Period will include an on-site visit, 4 weeks ±5 days after the last 
dose of IMP. 
10.1.4.1 Follow-up Visit at Week 56 (Visit 12) – End of Study or 4 weeks after Premature 
End of Treatment 
The following procedures will be performed at this visit: 
• Concomitant medications are assessed. 
• Measurement of body weight. 
• Abbreviated physical examination (The abbreviated physical examination should focus on 
cardiac and respiratory systems, as well as any areas important for assessment of AEs, if 
necessary). Vital signs. After 5 minutes resting, seated SBP, DBP, and HR will be 
assessed 3 times with at least 1 minute between each measurement (see Appendix C for 
details). 
• IRT to be notified. 
• AEs/SAEs/AESI/EOSI and hypoglycemia (if any) are reported. 
• Collect glucose meter. 
• Patient diary is collected and reviewed. 
• Fasting SMBG is assessed. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 77 
• The following laboratory testing (by the central laboratory): 
- 
Clinical chemistry (including amylase, lipase, and uric acid) 
- 
Cystatin C. 
10.2 
DEFINITION OF SOURCE DATA 
10.2.1 Source data to be found in patient’s file 
Evaluations recorded in the e-CRF must be supported by appropriately signed source 
documentation related but not limited to the following: 
• Agreement and signature of ICF with the study identification. 
• Study identification (name). 
• Patient number, confirmation of randomization, treatment batch number, dates and doses 
of study medication administration. 
• Medical, surgical, diabetes history, including information on: 
- 
Demography, inclusion, and exclusion criteria 
- 
Last participation in a clinical trial 
- 
Contraception method for WOCBP 
- 
Previous and concomitant medication. 
• Dates and times of visits and assessments including examination results. 
• Vital signs, height, body weight, laboratory reports, Investigation results (eg, ECG traces, 
imaging reports). 
• AEs and follow-up: 
- 
In case of SAE, the site should file in the source documents at least copies of the 
hospitalization reports and any relevant examination reports documenting the 
follow-up of the SAE. 
• Date of premature treatment discontinuation (if any) and reason. 
• Date of premature study discontinuation (if any) and reason. 
• Nursing notes. 
• Dietician’s notes. 
• Physician’s notes. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 78 
10.2.2 Source data verification requirements for screen failures 
For screen failure patients, the following source data must be verified: patient's identification 
details, the informed consent signed by the patient, the study identification (name), dates of study 
visits and the main reasons for screen failure. 
10.3 
HANDLING OF PATIENT TEMPORARY OR PERMANENT TREATMENT 
DISCONTINUATION AND OF PATIENT STUDY DISCONTINUATION  
The IMP should be continued whenever possible. In case the IMP is stopped, it should be 
determined whether the stop can be made temporarily; permanent IMP discontinuation should be 
a last resort. Any IMP discontinuation should be fully documented in the e-CRF. In any case, the 
patient should remain in the study and followed for the remainder of the study to collect vital 
safety status and endpoint data. 
10.3.1 Temporary treatment discontinuation with investigational medicinal product 
Temporary treatment discontinuation may be considered by the Investigator because of suspected 
AEs.  
Lower extremity complications (such as skin ulcers, infection, osteomyelitis, and gangrene) 
requiring treatment should lead to temporary discontinuation of IMP. 
If at any visit after Randomization up to Week 8 there is a rise in creatinine level (ie, >50% 
increase from Baseline level, where Baseline level is defined as the mean of creatinine values 
obtained at Screening and Randomization) or if at any visit after Week 8 there is a rise of >50% 
above the mean of creatinine values from last 2 visits, the Investigator should ensure that no 
reasonable explanation exists for creatinine increase.  
The IMP should be stopped for 2 weeks. 
Reinitiating of treatment with the IMP will be done under close and appropriate clinical/and or 
laboratory monitoring once the Investigator has considered according to his/her best medical 
judgment in the occurrence of the concerned event was unlikely to be related to the IMP and if 
that the selection criteria for the study are still met (refer to Section 7.1 and Section 7.2). 
If at creatinine recheck the patient has returned to the below threshold then IMP will be restarted 
at a reduced dose (ie, dose reduced via IRT to 200 mg for those randomized to 400 mg; 
maintained at 200 mg for those randomized to 200 mg). Since the IMP received is blinded, 
patients must return to the site and IRT will be contacted for IMP re-initiation. 
It is in the interest of the patient to monitor their blood glucose during the temporary 
discontinuation period, therefore regular determination of SMBG is to be performed and 
documented (see Section 9.2.1.8). 
For all temporary treatment discontinuations, duration should be recorded by the Investigator in 
the appropriate pages of the e-CRF when considered as confirmed. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 79 
Temporary treatment discontinuation decided by the Investigator corresponds to more than 1 dose 
not administered to the patient. 
Use of any other anti-hyperglycemic medication during the time of temporary treatment 
discontinuation (ie, insulin during a hospitalization) is to be recorded as concomitant medication 
with the name and dose recorded in the e-CRF. 
10.3.2 Permanent treatment discontinuation with investigational medicinal product 
Permanent treatment discontinuation defined as any treatment discontinuation associated with the 
definitive decision from the Investigator or the patient not to re-expose the patient to the IMP at 
any time. 
10.3.3 List of criteria for permanent treatment discontinuation 
Patients may withdraw from treatment with the IMP if they decide to do so, at any time and 
irrespective of the reason, or this may be the Investigator’s decision. Patients should discuss 
stopping study medication with the site before doing so in order that questions can be addressed, 
glycemic therapy adjusted, and a follow-up assessment arranged. All efforts should be made to 
document the reasons for treatment discontinuation; this reason should be documented in the 
e-CRF. 
The following reasons can lead to permanent discontinuation: 
• At the patient’s own request (ie, withdrawal of consent for treatment). 
• If, in the Investigator's opinion, continuation with the administration of the study treatment 
would be detrimental to the patient's well-being. 
• Intercurrent condition that requires permanent discontinuation of the study treatment as 
long as the abnormality persists and if the casual relationship of the concerned event and 
the IMP is possible (according to the Investigator’s best medical judgment). 
• Deterioration of renal function (defined as increase in serum creatinine > 50% from 
Baseline) that is not recovered after a temporary IMP discontinuation for 2 weeks. 
• Patient requires renal replacement therapy (transplant or dialysis). 
• Pregnancy (in female patients). 
• Specific request of the Sponsor. 
Any abnormal laboratory value will be rechecked immediately to confirm the result before a 
decision is made to permanent discontinue IMP for the concerned patient. 
For patients who prematurely discontinue the IMP, the assessments planned at EOT visit  
(Section 10.1.3.2) will be performed at the Premature EOT Visit scheduled preferably prior to 
treatment discontinuation or as soon as possible after the time of discontinuation (at the latest at 
the next scheduled on-site visit). In the case of premature IMP discontinuation, no sample for 
measuring plasma concentration should be taken at the Premature EOT Visit, or at any subsequent 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 80 
visit. The reason(s) for IMP discontinuation will be clearly specified. This Premature EOT 
assessment may occur at a regularly scheduled or at an unscheduled visit. 
10.3.4 Handling of patients after permanent treatment discontinuation 
Every effort should be made to maintain patients in the study. Patients should be followed up 
according to the study procedures as specified in this protocol up to the scheduled date of study 
completion, or up to recovery or stabilization of any AE to be followed up as specified in this 
protocol, whichever comes later. 
If a patient decides to discontinue study treatment early, a Premature EOT Visit (see  
Section 10.1.3.2) should be scheduled prior to treatment discontinuation, if possible. If not 
possible, the Premature EOT should be scheduled as soon as possible after treatment 
discontinuation. In the case of early discontinuation, no sample for measuring plasma 
concentration should be taken at the Premature EOT Visit, or at any subsequent visits. For 
patients who discontinue treatment but remain in the study, the remaining study visits should 
occur as scheduled where possible. The IRT should be notified of EOT. 
All cases of permanent treatment discontinuation should be recorded by the Investigator in the 
appropriate pages of the e-CRF. 
10.3.5 Procedure and consequence for patient withdrawal from study 
Patients may withdraw from the study before study completion if they decide to do so, at any time 
and irrespective of the reason. Withdrawal of consent for treatment should be distinguished from 
withdrawal of consent for follow-up visits. Patients will be told that they are free to withdraw 
from the study at any time without any adverse effect on their care; however, if they no longer 
wish to take the IMP, they will be encouraged to remain in the study and attend the remaining 
study visits. The value of all their study data collected during their continued involvement will be 
emphasized as important to the public health value of the study. 
If possible, the patients are assessed using the procedure normally planned for the EOS visit. 
Patients who withdraw should be explicitly asked about the contribution of possible AEs to their 
decision to withdraw consent, and any AE information elicited should be documented. Preferably 
the patient should withdraw consent in writing and, if the patient or the patient’s representative 
refuses or is physically unavailable, the site should document and sign the reason for the patient’s 
failure to withdraw consent in writing. 
All confirmed study withdrawals should be recorded by the Investigator in the appropriate screens 
of the e-CRF and in the patient’s medical records. In the medical record, at least the date of the 
withdrawal and the reason should be documented. 
For patients who fail to return to the site, unless the patient withdraws consent for follow-up, the 
Investigator should make the best effort to contact the patient (eg, contact patient’s family or 
private physician, review available registries or health care databases), and to determine his/her 
health status, including at least his/her vital status. Attempts (3 phone call attempts followed by a 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 81 
certified letter) to contact such patients must be documented in the patient’s records (eg, times and 
dates of attempted telephone contact, receipt for sending a registered letter). 
Patients who have withdrawn from the study cannot be re-randomized (treated) in the study. Their 
inclusion and treatment numbers must not be reused. 
10.4 
OBLIGATION OF THE INVESTIGATOR REGARDING SAFETY REPORTING  
10.4.1 Definitions of adverse events 
10.4.1.1 Adverse event 
An AE is any untoward medical occurrence in a patient or clinical investigation patient 
administered a pharmaceutical product and which does not necessarily have to have a causal 
relationship with the study treatment. 
10.4.1.2 Serious adverse event 
An SAE is any untoward medical occurrence that at any dose: 
• Results in death, or 
• Is life-threatening, or 
Note: The term “life-threatening” in the definition of “serious” 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. 
• Requires inpatient hospitalization or prolongation of existing hospitalization, or 
• Results in persistent or significant disability/incapacity, or 
• Is a congenital anomaly/birth defect, or 
• Is a medically important event. 
Medical and scientific judgment should be exercised in deciding whether expedited reporting is 
appropriate in other situations, such as important medical events that may not be immediately 
life-threatening or result in death or hospitalization but may jeopardize the patient or may require 
medical or surgical intervention (ie, specific measures or corrective treatment) to prevent one of 
the other outcomes listed in the definition above. 
Note: The following list of medically important events is intended to serve as a guideline for 
determining which condition has to be considered a medically important event. The list is not 
intended to be exhaustive: 
• Intensive treatment in an emergency room or at home for: 
- 
Allergic bronchospasm 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 82 
- 
Blood dyscrasias (ie, agranulocytosis, aplastic anemia, bone marrow aplasia, 
myelodysplasia, pancytopenia, etc)  
- 
Convulsions (seizures, epilepsy, epileptic fit, absence, etc). 
• Development of drug dependence or drug abuse. 
• ALT >3 times ULN + total bilirubin >2 times ULN or asymptomatic ALT increase 
>10 times ULN. 
• Suicide attempt or any event suggestive of suicidality. 
• Syncope, loss of consciousness (except if documented as a consequence of blood 
sampling). 
• Bullous cutaneous eruptions. 
• Cancers diagnosed during the study or aggravated during the study. 
• Chronic neurodegenerative diseases (newly diagnosed) or aggravated during the study. 
10.4.1.3 Adverse event of special interest 
An AESI is an AE (serious or nonserious) of scientific and medical concern specific to the 
Sponsor’s product or program, for which ongoing monitoring and immediate notification by the 
Investigator to the Sponsor is required. Such events may require further investigation in order to 
characterize and understand them. Adverse events of special interest may be added, modified or 
removed during a study by protocol amendment. 
The AESI for this study are: 
• Pregnancy of a female patient entered in a study as well as pregnancy occurring in a 
female partner of a male patient entered in a study with IMP/NIMP: 
- 
Pregnancy occurring in a female patient included in the clinical trial or in a female 
partner of a male patient entered in the clinical trial. It will be qualified as an SAE only 
if it fulfills one of the seriousness criteria (see Section 10.4.1.2) 
- 
In the event of pregnancy in a female patient, IMP should be discontinued  
- 
Follow-up of the pregnancy in a female patient or in a female partner of a male patient 
is mandatory until the outcome has been determined (see Appendix A). 
• Symptomatic overdose (serious or nonserious) with IMP/NIMP 
- 
A symptomatic overdose (accidental or intentional) with the IMP/NIMP is an event 
suspected by the Investigator or spontaneously notified by the patient and resulting in 
clinical symptoms and/or signs accompanied by administration of more than twice the 
intended daily dose within a 24-hour period. It will be recorded in the e-CRF as an 
AESI with immediate notification "Symptomatic OVERDOSE (accidental or 
intentional)" in all cases and will be qualified as an SAE only if it fulfills the SAE 
criteria 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 83 
Note that an asymptomatic overdose with the IMP/NIMP, accidental or intentional, 
defined as administration of more than twice the intended daily dose within a 24-hour 
period, without clinical symptoms and/or signs, either suspected by the Investigator or 
spontaneously notified by the patient, not based on accountability assessment. It will 
be recorded as an AE "Asymptomatic OVERDOSE, accidental or intentional." 
• ALT increase >3 times ULN. 
10.4.1.4 Events of special interest 
An EOSI is a serious or nonserious AE of scientific and medical concern specific to the Sponsor’s 
product or program, for which ongoing monitoring may be appropriate. Such events may require 
further investigation in order to characterize and understand them. These events should be 
reported on the specific e-CRF page (where applicable) and will only qualify for expedited 
reporting when serious (fulfilling SAE criteria). 
The EOSI for this study are: 
• MACE (CV death, MI, or stroke) and other specific CV events (eg, heart failure leading to 
hospitalization). 
• Severe hypoglycemia (see Section 10.6.1). 
• Genital mycotic infections (to include vulvovaginal candidiasis in females and candidal 
balanitis in males). 
• Urinary tract infections. 
• Clinically relevant volume depletion and events related/possibly related to volume 
depletion. 
• Diarrhea. 
• Pancreatitis. 
• Bone fractures. 
• Venous thrombotic events, to include deep venous thrombosis and thromboembolism (to 
include pulmonary embolism). 
• DKA. 
• Renal events, to include 50% decline in eGFR, end-stage kidney disease, renal death. 
• Malignancies of special interest (breast, bladder, renal cell, Leydig cell, pancreatic, 
prostate, and thyroid cancer). 
• AE leading to an amputation. 
10.4.2 General guidelines for reporting events 
• All AEs, regardless of seriousness or relationship to IMP/NIMP, spanning from the 
signature of the ICF until the end of the study as defined by the protocol for that patient, 
are to be recorded on the corresponding page(s) or screen(s) of the e-CRF. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 84 
• Whenever possible, diagnosis or single syndrome should be reported instead of symptoms. 
The Investigator should specify the date of onset, intensity, action taken with respect to 
IMP, corrective treatment/therapy given, additional investigations performed, outcome, 
and his/her opinion as to whether there is a reasonable possibility that the AE was caused 
by the IMP or by the study procedure(s).  
• In this study, the use of concomitant medications including antidiabetic medications may 
make it difficult to assess the causal relationship, particularly for hypoglycemia. The 
Global Safety Officer, with input from other appropriate study team members, will 
determine the causal relationship when it is not clearly provided by the Investigator. 
• The Investigator should take appropriate measures to follow all AEs until clinical recovery 
is complete and laboratory results have returned to normal, or until progression has been 
stabilized, or until death, in order to ensure the safety of the patients. This may imply that 
observations will continue beyond the last planned visit per protocol, and that additional 
investigations may be requested by the monitoring team up to as noticed by the Sponsor.  
• When treatment is prematurely discontinued, the patient's observations will continue until 
the end of the study as defined by the protocol for that patient. 
• Laboratory, vital signs, or ECG abnormalities are to be recorded as AEs if they are 
medically relevant based on the investigator’s medical judgment, eg: 
- 
Symptomatic, and/or 
- 
Requiring either corrective treatment or consultation, and/or 
- 
Leading to IMP discontinuation or modification of dosing, and/or 
- 
Fulfilling a seriousness criterion, and/or 
- 
Defined as an AESI or EOSI. 
10.4.3 Instructions for reporting serious adverse events 
In the case of occurrence of an SAE, the Investigator or any designees must immediately: 
• ENTER (within 24 hours) the information related to the SAE in the appropriate screens of 
the e-CRF; the system will automatically send the notification to the Monitoring team and 
Pharmacovigilance after approval of the Investigator within the e-CRF. 
• SEND (preferably by fax or e-mail) a photocopy of all examinations carried out and the 
dates on which these examinations were performed, to the representative of the monitoring 
team whose name, fax number, and e-mail address appear on the clinical trial protocol. 
Care should be taken to ensure that the patient's identity is protected and the patient’s 
identifiers in the clinical trial are properly mentioned on any copy of a source document 
provided to the Sponsor. For laboratory results, include the laboratory normal ranges. 
• All further data updates should be recorded in the e-CRF as appropriate, and further 
documentation as well as additional information (for laboratory data, concomitant 
medications, patient status, etc) should be sent (by fax or e-mail) to the monitoring team 
within 24 hours of knowledge of the SAE. In addition, every effort should be made to 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 85 
further document any SAE that is fatal or life-threatening within a week (7 days) of the 
initial notification. 
• A back-up plan (using a paper case report form [CRF] process) is available and should be 
used when the e-CRF system does not work. 
Any SAE brought to the attention of the Investigator at any time after the end of the study for the 
patient and considered by him/her to be caused by the IMP with a reasonable possibility, should 
be reported to the monitoring team. 
10.4.4 Guidelines for reporting adverse events of special interest 
For AESIs, the Sponsor/CRO must be informed immediately (ie, within 24 hours), as per SAE 
notification guidelines described in Section 10.4.3, even if not fulfilling a seriousness criterion, 
using the corresponding pages of the CRF (to be sent) or screens in the e-CRF. 
10.4.5 Guidelines for reporting events of special interest 
If an EOSI fulfills the criteria of an SAE, reporting should be performed according to the 
instructions for reporting of SAEs (see Section 10.4.3). Otherwise, reporting should follow the 
instructions for an AE (see Section 10.4.2). 
10.4.6 Guidelines for management of specific laboratory abnormalities 
Decision trees for the management of certain laboratory abnormalities by Sanofi are provided in 
Appendix D. 
The following laboratory abnormalities should be monitored, documented, and managed 
according to the related flow chart in protocol appendices: 
• Neutropenia 
• Thrombocytopenia 
• Increase in ALT 
• Acute renal insufficiency 
• Suspicion of rhabdomyolysis. 
10.5 
OBLIGATIONS OF THE SPONSOR 
During the course of the study, the Sponsor will report in an expedited manner: 
• All SAEs that are both unexpected and at least reasonably related to the IMP (SUSAR), to 
the regulatory authorities, IECs/ IRBs as appropriate and to the Investigators.  
• All SAEs that are expected and at least reasonably related to the IMPs to the regulatory 
authorities, according to local regulations. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 86 
• The following AESIs to those regulatory authorities who require such reporting: 
- 
Pregnancy 
- 
Symptomatic overdose 
- 
ALT increase >3 times ULN. 
Adverse events that are considered expected will be specified by the reference safety information 
provided in the current IB. 
If required, unblinding of SUSARs will be the responsibility of the Sponsor. 
The Sponsor will report all safety observations made during the conduct of the trial in the CSR. 
10.6 
SAFETY INSTRUCTIONS 
10.6.1 Hypoglycemia 
During the study, patients are instructed to document any hypoglycemic episodes in their study 
diary. The hypoglycemia will be reported in the specific e-CRF page with onset date and time, 
symptoms and/or signs, the SMBG value if available, and the treatment. If the event fulfills SAE 
criteria, hypoglycemia will also be reported as an SAE.  
Hypoglycemia is categorized according to the ADA workgroup on hypoglycemia classification 
(19)(20) and summarized in Figure 1.  
In addition of the threshold of less than or equal to 70 mg/dL (3.9 mmol/L), hypoglycemia 
episodes with a plasma glucose of <54 mg/dL (3.0 mmol/L) will be analyzed separately. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 87 
Figure 1 - Hypoglycemia classification in Study EFC14837 
 
PG: plasma glucose; SAE: serious adverse event. 
Severe hypoglycemia 
Severe hypoglycemia is an event requiring assistance of another person to actively administer 
carbohydrate, glucagon, intravenous glucose, or other resuscitative actions. These episodes may 
be associated with sufficient neuroglycopenia to induce seizure, unconsciousness or coma. 
Self-monitored blood glucose values may not be available, but neurological recovery attributable 
to the restoration of plasma glucose to normal is considered sufficient evidence that the event was 
induced by a low plasma glucose concentration. 
Note: “Requiring assistance of another person” means that the patient could not help himself or 
herself to treat the hypoglycemia. Assisting a patient out of kindness, when assistance is not 
required, should not be considered a “requires assistance” incident. 
Any hypoglycemic event which leads to unconsciousness, coma, or seizure should also be 
reported as an SAE. 
Documented symptomatic hypoglycemia 
Documented symptomatic hypoglycemia is an event during which typical symptoms of 
hypoglycemia accompanied by a measured plasma glucose concentration of ≤3.9 mmol/L 
(≤70 mg/dL). 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 88 
Clinical symptoms that are considered to result from a hypoglycemic episode include increased 
sweating, nervousness, asthenia/weakness, tremor, dizziness, increased appetite, palpitations, 
headache, sleep disorder, confusion, seizures, unconsciousness, or coma. 
Asymptomatic hypoglycemia 
Asymptomatic hypoglycemia is an event not accompanied by typical symptoms of hypoglycemia 
but with a measured plasma glucose concentration ≤3.9 mmol/L (≤70 mg/dL).  
Note: low plasma glucose values without symptoms or signs should not be reported more than 
once within 30 minutes. Repeated low glucose values within a short period could be due to 
malfunction of the device, error testing or following up a low glucose reading. The Investigator 
should try not to document false low SMBG values or redundant low glucose values as 
asymptomatic hypoglycemic events. Further clarification with the patients is needed. 
Probable symptomatic hypoglycemia 
Probable symptomatic hypoglycemia is an event during which symptoms of hypoglycemia are not 
accompanied by a plasma glucose determination, (but that was presumably caused by a plasma 
glucose concentration ≤3.9 mmol/L [≤70 mg/dL]), ie, symptoms treated with oral carbohydrate 
without a test of plasma glucose.  
Relative hypoglycemia 
Relative hypoglycemia, recently termed “pseudo-hypoglycemia” (20), is an event during which 
the patient reports typical symptoms of hypoglycemia, and interprets the symptoms as indicative 
of hypoglycemia, but with a measured plasma glucose concentration >3.9 mmol/L (>70 mg/dL). 
10.6.2  Deterioration of renal function 
Patients will be monitored throughout the double-blind Treatment Period and Extension Period for 
signs of deterioration in renal function (eg, decrease in eGFR or increase in creatinine as defined 
below) as well as other routine clinical and laboratory findings (see Study Flowchart, Section 1.2). 
If at any visit after Randomization up to Week 8 there is a rise in creatinine level (ie, >50% 
increase from Baseline level, where Baseline level is defined as the mean of creatinine values 
obtained at Screening and Randomization) or if at any visit after Week 8 there is a rise of >50% 
above the mean of creatinine values from last 2 visits, the Investigator should ensure that no 
reasonable explanation exists for creatinine increase and in particular the following causes: 
• Medications that increase creatinine 
• Decrease in cardiac output 
• Obstructive uropathy 
• Urinary tract infection 
• Volume depletion. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 89 
If addressing these causes does not reduce the creatinine level below the above stated threshold, 
the IMP will be stopped for 2 weeks. The dose will be handled according to the renal function 
assessed by the creatinine measurement throughout the study and as detailed in Section 10.3.1. 
If the creatinine dose not return to below the threshold, then the IMP will be permanently 
discontinued but the patient will be asked to continue attending all study visits 
10.7 
ADVERSE EVENTS MONITORING 
All events will be managed and reported in compliance with all applicable regulations, and 
included in the final CSR. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 90 
11 
STATISTICAL CONSIDERATIONS 
11.1 
DETERMINATION OF SAMPLE SIZE 
The sample size/power calculations were performed based on the primary endpoint. Assuming a 
common standard deviation (SD) of 1.2% and using a 2-sided test at a 0.05 α-level, 130 patients 
in each CKD stratum (3A or 3B) in each treatment group will provide the following power: 
• To detect a treatment difference of 0.6% in mean HbA1c change from Baseline to 
Week 26 between sotagliflozin 400 mg versus placebo: 
- 
98% power comparing sotagliflozin 400 mg versus placebo in patients in CKD 3A 
stratum. 
- 
98% power comparing sotagliflozin 400 mg versus placebo in patients in CKD 3B 
stratum. 
- 
99% power comparing sotagliflozin 400 mg versus placebo in overall patient 
population. 
• To detect a treatment difference of 0.5% in mean HbA1c change from Baseline to 
Week 26 between sotagliflozin 200 mg versus placebo: 
- 
91% power comparing sotagliflozin 200 mg versus placebo in patients in CKD 3A 
stratum 
- 
91% power comparing sotagliflozin 200 mg versus placebo in patients in CKD 3B 
stratum 
- 
99% power comparing sotagliflozin 200 mg versus placebo in overall patient 
population 
• At least 80% overall power to have all 6 above statistical inferences statistically significant 
based on above treatment effect assumptions. 
11.2 
DISPOSITION OF PATIENTS 
The total number of patients for each of the following categories will be presented in the CSR. 
• Screened patients: patients who have signed the ICF. 
• Run-in patients. 
• Randomized patients: patients with a treatment kit number allocated and recorded in IRT 
database, regardless of whether the treatment kit was used or not. 
• The safety population (ie, randomized and treated patients). 
• The ITT population, as defined in Section 11.3.1.1. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 91 
• The randomization strata (HbA1c at Screening [≤8.5%, >8.5%], Screening SBP 
[<130 mmHg, ≥130 mmHg], and CKD stage [3A, 3B]). The discrepancy between the 
strata assigned by IRT and the information reported on e-CRF will be listed for all 
randomized patients. 
• Patients who have completed the 26-week double-blind Treatment Period. 
• Patients who discontinued the IMP during the 26-week double-blind Treatment Period, 
and the reasons for treatment discontinuation. 
• Patients who have completed the 52-week entire Treatment Period. 
• Patients who discontinued the IMP during the 52-week entire Treatment Period, and the 
reasons for treatment discontinuation. 
• Patients who have completed the study. 
• Patients who discontinued the study, and the reasons for study discontinuation. 
For all categories of patients except screened, percentages will be calculated using the number of 
randomized patients as denominator for each treatment group. 
A list of patients prematurely discontinued from the treatment, along with reasons for 
discontinuation, will be provided. Similarly, a list of patients prematurely discontinued from the 
study, along with reasons for discontinuation, will be provided. 
Patients treated but not randomized, patients randomized but not treated and patients randomized 
but not treated as randomized will be identified and described in separate listings. The safety 
experience of patients treated and not randomized will be reported separately, and these patients 
will not be in the safety population. 
For any patient randomized more than once, only the data associated with the first randomization 
will be used in any analysis population. The safety experience associated with any later 
randomization will be assessed separately. 
11.3 
ANALYSIS OF POPULATIONS 
11.3.1 Efficacy populations 
Efficacy analyses will be based on the treatment group allocated by the IRT according to the 
randomization schedule at the Randomization Visit (as randomized), irrespective of the treatment 
actually received. 
11.3.1.1 Intent-to-treat population 
Efficacy analyses will be based on the intent-to-treat (ITT) population, defined as all randomized 
patients irrespective of compliance with the study protocol and procedures. Patients will be 
analyzed for efficacy analyses according to the treatment group to which they are randomized. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 92 
11.3.2 Safety population 
Safety analyses will be based on the safety population, defined as all randomized patients who 
receive at least 1 dose of double-blind IMP (regardless of the amount of treatment administered). 
Patients will be analyzed for safety analyses according to the treatment actually received. 
In addition: 
• Non-randomized but treated patients will not be part of the safety population, but their 
safety data will be presented separately. 
• Randomized patients for whom it is unclear whether they took the study medication will 
be included in the safety population as randomized. 
• When a patient is exposed to both sotagliflozin and placebo, the patient will be analyzed in 
the sotagliflozin group (depending on the treatment kit taken [400 mg or 200 mg]). 
• When a patient is exposed to both sotagliflozin 400 mg (treatment kit) and 200 mg 
(treatment kit), the patient will be analyzed in the sotagliflozin 200 mg group. 
• Randomized patients will be excluded from the safety population only if there is 
documented evidence (ie, all study dates recorded as no medication taken) that patients 
have not taken the study medication. 
11.4 
STATISTICAL METHODS 
Continuous data will be summarized by treatment group using the number of observations 
available (N), mean, SD, minimum, median, and maximum. Categorical data will be summarized 
by treatment group using count and percentage. 
In general, descriptive statistics of quantitative efficacy and safety parameters (result and change 
from Baseline) by scheduled visits will be provided. 
The Baseline value is defined generally as the last available value before the first dose of 
double-blind IMP or the last available value prior to randomization for patients who were 
randomized but never exposed to IMP. 
For serum creatinine and eGFR, the Baseline value is defined as the average of all values before 
the first dose of double-blind IMP for those randomized and exposed or before randomization for 
those who were randomized but never exposed to IMP. 
Analysis of demographics and Baseline characteristics, prior and concomitant medications will be 
provided in detail in the statistical analysis plan (SAP). 
11.4.1 Extent of study treatment exposure and compliance 
The extent of study treatment exposure and compliance will be assessed and summarized by 
actual treatment received in the safety population. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 93 
11.4.1.1 Extent of investigational medicinal product exposure 
The extent of study treatment exposure will be assessed by the duration of treatment exposure 
during the study.  
The duration of treatment exposure will be the total number of days of administration of the 
double-blind IMP, regardless of unplanned intermittent discontinuations. The duration of IMP 
exposure will be calculated as: 
 
(Date of the last double-blind IMP taken – Date of the first double-blind IMP taken) + 1 
The number (%) of patients randomized and exposed to double-blind IMP will be presented by 
specific time periods for each treatment group. The time periods of interest will be defined in the 
SAP. 
Descriptive statistics of duration of treatment exposure (number, mean, SD, minimum, median, 
and maximum) and cumulative exposure in patient years will also be presented by treatment 
group in the safety population. 
11.4.1.2 Compliance 
A given administration will be considered noncompliant if the patient did not take the planned 
dose of treatment as required by the protocol. No imputations will be made for patients with 
missing or incomplete data. 
Treatment compliance, above-planned and under-planned dosing percentages will be summarized 
descriptively (N, mean, SD, median, minimum, and maximum). The percentage of patients with 
compliance <80% will be summarized. In addition, the number and percentage of patients with at 
least 1 above-planned dosing administration will be given, as well as the number and percentage 
of patients with 0, 0 to 20%, and >20% under-planned dosing administrations. 
11.4.2 Analyses of efficacy endpoints 
Efficacy analyses will be performed on the ITT population. 
Statistical testing will be performed for primary endpoint and secondary endpoints at Week 26 (or 
Week 12 for SBP). All efficacy endpoints after Week 26 will only be summarized by descriptive 
statistics without formal statistical testing. 
11.4.2.1 Analysis of primary efficacy endpoint(s) 
The statistical test will be two-sided tests at a nominal 5% significance level. 
Analysis of the primary efficacy endpoint (change from Baseline to Week 26 in HbA1c; see 
Section 9.1.1) will be performed on the ITT population, using HbA1c measurements obtained 
from visits during the study, including those obtained after IMP discontinuation or introduction of 
rescue therapy. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 94 
The primary efficacy endpoint of change in HbA1c from Baseline to Week 26 will be analyzed 
with missing values imputed by control-based multiple imputation method under the missing not 
at random framework: 
• For placebo patients, missing data will be imputed based on the placebo group data. 
• For patients in the sotagliflozin group, missing data will be imputed as if the patients were 
on placebo throughout the study, where all patients' measurements including the 
on-treatment measurements will be considered as if the measurements were from the 
placebo group in the imputation model. 
Each of the complete datasets will be analyzed by an Analysis of Covariance (ANCOVA) model. 
To compare sotagliflozin 400 mg and 200 mg, respectively, versus placebo in overall patient 
population (ie, CKD 3A and 3B patients combined), the model will include treatment 
(sotagliflozin 400 mg, sotagliflozin 200 mg, and placebo), randomization stratum of Screening 
HbA1c (≤8.5%, >8.5%), randomization stratum of Screening SBP (<130 mmHg, ≥130 mmHg), 
randomization stratum of CKD stage (3A, 3B), and country as fixed effects, and Baseline HbA1c 
value as a covariate.  
To compare sotagliflozin 400 mg and 200 mg, respectively, versus placebo in each CKD stratum, 
the model will include treatment (sotagliflozin 400 mg, sotagliflozin 200 mg, and placebo), 
randomization stratum of Screening HbA1c (≤8.5%, >8.5%), randomization stratum of Screening 
SBP (<130 mmHg, ≥130 mmHg), randomization stratum of CKD stage (3A, 3B), treatment by 
randomization stratum of CKD stage, and country as fixed effects, and Baseline HbA1c value as a 
covariate. 
Results from each complete dataset will be combined to provide the adjusted mean change in 
HbA1c from Baseline to Week 26 for each treatment group, as well as the between-group 
difference (comparing each sotagliflozin group versus placebo) and its associated 95% confidence 
interval (CI) using appropriate contrast statements. 
Summary statistics (for Screening value, Baseline value, observed values, and observed changes 
from Baseline) at scheduled visits will be provided for each treatment group and by CKD stages 
(3A, 3B). The summary will include the number of observations, mean, SD, standard error (SE), 
minimum, median, and maximum. Graphical presentations will also be used to examine trends 
over time using mean values (± SE) and mean changes from Baseline (± SE) at each of the 
scheduled visits (using OC). 
Assessment of treatment effect by subgroup 
Descriptive analyses will be performed on the primary endpoint to summarize the treatment 
effects across subgroups defined by the following Baseline or Screening factors: 
• Race 
• Ethnicity (Hispanic, Not Hispanic) 
• Age group (<50 years, ≥50 to <65 years, ≥65 years) 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 95 
• Gender 
• Baseline BMI level (<30, ≥30 kg/m²) 
• Baseline HbA1c (≤8.5%, >8.5%) 
• Baseline SBP (<130 mmHg, ≥130 mmHg) 
• Country. 
The treatment effects across the subgroups defined for each of these factors will be estimated for 
the change from Baseline to Week 26 in HbA1c in the ITT population, and using a similar 
approach to the analysis for the primary efficacy endpoint. The adjusted estimates of treatment 
mean differences (each sotagliflozin group versus placebo) with SE and 95% CIs will be provided 
as appropriate across the subgroups. 
In the event that the subgroup factor is identical or similar to a randomization strata factor 
(eg, Baseline HbA1c category), only the subgroup factor (as a single factor and/or an interaction 
term) will be included in the model in order to avoid the issue of collinearity in the analysis. The 
corresponding strata factor will not be included in the model. 
11.4.2.2 Analyses of secondary efficacy endpoints 
The secondary endpoints (see Section 9.1.2) will be analyzed using a similar approach to the 
primary efficacy endpoint with missing values imputed by control-based multiple imputation 
method under the missing not at random framework. 
• For placebo patients, missing data will be imputed based on the placebo group data. 
• For patients in the sotagliflozin group, missing data will be imputed as if the patients were 
on placebo group throughout the study, where all patients' measurements including the 
on-treatment measurements will be considered as if the measurements were from the 
placebo group in the imputation model. 
For each of the continuous secondary endpoints, each of the complete datasets will be analyzed by 
an ANCOVA model with treatment (sotagliflozin 400 mg, sotagliflozin 200 mg, placebo), 
randomization stratum of HbA1c (≤8.5%, >8.5%), randomization stratum of Screening SBP 
(<130 mmHg, ≥130 mmHg), CKD stage at Screening (3A, 3B), and country as fixed effects, and 
Baseline secondary endpoint value as a covariate. Results from each complete dataset will be 
combined to provide the adjusted mean change from Baseline to Week 26 (or Week 12 for SBP) 
for each treatment group, as well as the between-group difference (comparing each sotagliflozin 
group versus placebo) and its associated 95% CI using appropriate contrast statements. 
The categorical secondary efficacy variables of HbA1c <6.5%, <7% at Week 26 will be analyzed 
using a Cochran-Mantel-Haenszel method stratified by the randomization stratum of Screening 
HbA1c (≤8.5%, >8.5%), randomization stratum of Screening SBP (<130 mmHg, ≥130 mmHg), 
and CKD stage at Screening (3A, 3B). The proportion in each treatment group will be provided, 
as well as the difference of proportions between sotagliflozin and placebo with associated 2-sided 
95% CI. For HbA1c responders at Week 26 (<6.5%, <7% respectively), all values at Week 26 will 
be used to determine whether a patient is a responder or not, even if they are measured after IMP 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 96 
discontinuation or rescue medication use. Patients who have no HbA1c measurement at Week 26 
will be treated as non-responders. 
For all secondary endpoints, summary statistics at scheduled visits will be provided for each 
treatment group. The summary will include the number of observations, mean, SD, SE, minimum, 
median, and maximum. Graphical presentations will also be used to examine trends over time 
using mean values (± SE) and mean changes from Baseline (± SE) at each of the scheduled visits 
(using OC). 
11.4.2.3 Analyses of other efficacy endpoints 
The analysis of other endpoints (see Section 9.1.3) will be descriptive with no formal testing. 
Summary statistics at scheduled visits using OC will be provided by each treatment group. 
Graphical presentations will also be used to illustrate trends over time. 
11.4.2.4 Multiplicity considerations 
To control the family-wise type I error, a hierarchical testing procedure will be applied. 
For the primary efficacy endpoint (change from Baseline to Week 26 in HbA1c), the hypotheses 
of statistical superiority of sotagliflozin versus placebo will be tested at 2-sided 5% significance 
level in the following population and order. The testing will stop as soon as the endpoint is found 
to be not statistically significant at α = 0.05 (2-sided). 
• Comparing sotagliflozin 400 mg versus placebo, in: 
- 
The overall patient population (ie, patients in stratum CKD 3A and stratum CKD 3B) 
- 
Patients in stratum CKD 3A 
- 
Patients in stratum CKD 3B. 
• Comparing sotagliflozin 200 mg versus placebo, in: 
- 
The overall patient population (ie, patients in stratum CKD 3A and stratum CKD 3B) 
- 
Patients in stratum CKD 3A 
- 
Patients in stratum CKD 3B. 
Once the primary variable (change from Baseline to Week 26 in HbA1c) is statistically significant 
at α = 0.05 (2-sided) in all 6 populations in the order above, a hierarchical testing procedure will 
be performed to test the following main study secondary efficacy variables in the overall 
population by the following prioritized order. The testing will stop as soon as an endpoint is found 
to be not statistically significant at α = 0.05 (2-sided). 
• Comparing sotagliflozin 400 mg versus placebo, in: 
- 
Change from Baseline to Week 26 in FPG  
- 
Change from Baseline to Week 26 in body weight 
- 
Change from Baseline to Week 12 in SBP for patients with Baseline SBP ≥130 mmHg 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 97 
- 
Change from Baseline to Week 12 in SBP for all patients 
- 
Proportion of patients with HbA1c <7.0% at Week 26. 
• Comparing sotagliflozin 200 mg versus placebo, in: 
- 
Change from Baseline to Week 26 in FPG  
- 
Change from Baseline to Week 26 in body weight 
- 
Change from Baseline to Week 12 in SBP for patients with Baseline SBP ≥130 mmHg 
Once the above secondary variables are statistically significant at α = 0.05 (2-sided), Hochberg’s 
step-up procedure (21) will be performed to test the remaining 4 secondary variables: order a 
number of m (m=4 here) tests by p-values (from lowest to highest) P(1) ……, P(m) associated with 
tests H(1) ……, H(m), find the largest k (called R) so that, for all k = 1,…, R, P(k) ≤ α / (m+1-k), 
conclude H(1) ……, H(R) statistically significant. 
• Percentage change in UACR from Baseline to Week 26 for patients with UACR >30 mg/g 
at Baseline, comparing sotagliflozin 400 mg and 200 mg, respectively, versus placebo 
• Proportion of patients with HbA1c <7.0% at Week 26, comparing sotagliflozin 200 mg 
versus placebo 
• Change from Baseline to Week 12 in SBP for all patients comparing sotagliflozin 200 mg 
versus placebo 
No multiplicity adjustment will be made on efficacy variables other than those mentioned above. 
11.4.3 Analyses of safety data 
Safety endpoints are presented in Section 9.2. The summary of safety results will be presented by 
treatment group. The safety data will be summarized for the 26-week double-blind Treatment 
Period and the entire treatment period separately, unless specified otherwise. All safety analyses 
will be performed on the safety population as defined in Section 11.3.2 using the following 
common rules: 
The following definitions will be applied to laboratory parameters and vital signs: 
• The potentially clinically significant abnormality (PCSA) values for clinical laboratory 
tests and vital signs are defined as abnormal values considered medically important by the 
Sponsor’s Global Pharmacovigilance and Epidemiology department and in effect at the 
time of the final SAP approval. The PCSA criteria for parameters not cited in the protocol 
as safety parameters will not be analyzed. 
• The PCSA criteria will determine which patients had at least 1 PCSA during the on-
Treatment Period, taking into account all evaluations performed during the on-Treatment 
Period, including unscheduled or repeated evaluations. The number of all such patients 
will be the numerator for the on-treatment PCSA percentage. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 98 
The “observation periods” defined in Section 9.2 are applicable for classification of AEs, 
determination of on-treatment PCSA values and the last on-treatment value for the laboratory, 
vital sign and ECG parameters. 
11.4.3.1 Analysis of adverse events 
Pre-treatment AEs are AEs that developed or worsened or became serious during the 
pre-Treatment Period. 
Treatment-emergent AEs are AEs that developed or worsened (according to the Investigator’s 
opinion) or became serious during the on-Treatment Period. 
Post-treatment AEs are AEs that developed or worsened or became serious during the 
post-Treatment Period. 
The primary focus of AE reporting in the CSR will be on TEAEs. Pre- and post-treatment AEs 
will be described separately. 
All adverse events 
Adverse event incidence tables will present by system organ class (SOC) (sorted by 
internationally agreed order), high-level group term (HLGT) and preferred term (PT) sorted in 
alphabetical order for each treatment group, the number (n) and percentage (%) of patients 
experiencing an AE. Multiple occurrences of the same event in the same patient will be counted 
only once in the tables within a treatment phase. The denominator for computation of percentages 
is the safety population within each treatment group.  
Summaries of all TEAEs in each treatment group will include: 
• The overview of AEs, summarizing number (%) of patients with any 
- 
TEAE 
- 
Serious TEAE 
- 
TEAE leading to death 
- 
TEAE leading to permanent treatment discontinuation. 
• The number (n) and percentage (%) of patients with at least one TEAE by primary SOC, 
HLGT, HLT, and PT. 
• Summary of TEAEs by maximal severity (severe, moderate, mild), presented by primary 
SOC and PT. 
• Summary of TEAEs possibly related to IMP, presented by primary SOC, HLGT, HLT and 
PT. 
A detailed listing of TEAE summaries will be provided in the SAP. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 99 
Death and serious adverse events 
Death and treatment-emergent SAEs will be summarized and presented as number and percent of 
patients in each treatment group. 
The following deaths summaries will be generated: 
• Number (%) of patients who died by study period (on-study, on-treatment, post-study) 
summarized on the safety population by treatment received. 
• Death in non-randomized patients or randomized and not treated patients. 
• TEAE leading to death (death as an outcome on the AE e-CRF page as reported by the 
Investigator) by primary SOC, HLGT, HLT and PT showing number (%) of patients 
sorted by internationally agreed order of SOC and alphabetic order of HLGT, HLT, and 
PT. 
Adverse events leading to permanent treatment discontinuation 
Treatment-emergent AEs leading to permanent treatment discontinuation will be summarized and 
presented as number and percent of patients in each treatment group. 
11.4.3.2 Analyses of hypoglycemia 
The number (%) of patients and rate in patient years (2 types: the number of patients with events 
or the total number of events per 100 patient-year) of all, severe and documented symptomatic 
hypoglycemia will be summarized by treatment group respectively. Their pattern of occurrence 
over time will also be assessed, as appropriate. 
11.4.3.3 Analyses of adverse events of special interest 
Pregnancy and overdose will be included in overall AE summaries if any are reported. Alanine 
aminotransferase increase >3 × ULN is included in laboratory PCSA summary if any. 
11.4.3.4 Analyses of events of special interest 
The number (%) of patients with each EOSI event will be summarized by treatment group. All 
events reported by the Investigators on the AE forms for special interest will be listed along with 
the adjudication outcome (if applicable). 
11.4.3.5 Analyses of laboratory variables 
The number and percentage of patients with PCSA or by the predefined categories (if no PCSA 
criterion is defined) at any evaluation during the on-Treatment Period will be summarized for 
each clinical laboratory test within each treatment group. The summaries will include patients in 
the safety population who have at least one laboratory test performed during the on-Treatment 
Period and, when required by the definition of the abnormality, with an available Baseline value 
and available laboratory normal ranges. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 100 
Descriptive statistics will be used to summarize the laboratory results and the changes from 
Baseline by visit and for the last on-treatment value within each treatment group. Shift tables and 
other tabular and graphical methods may be used to present the results for laboratory tests of 
interest. Listings will be provided with flags indicating the out of laboratory range values as well 
as the PCSA values. 
The liver function tests, namely ALT, AST, alkaline phosphatase, and total bilirubin, are used to 
assess possible drug-induced liver toxicity. The proportion of patients with PCSA values at any 
postbaseline visit by Baseline status will be displayed by treatment group for each parameter. 
11.4.3.6 Analyses of vital sign variables 
The number and percentage of patients with PCSA at any evaluation during the on-Treatment 
Period will be summarized for each vital sign parameter within each treatment group. The 
summaries will include patients in the safety population who have at least one parameter to be 
analyzed during the on-Treatment Period. Descriptive statistics will be used to summarize the 
results and the changes from Baseline by visit and for the last on-treatment value within each 
treatment group. Tabular and graphical methods may be used to present the results for parameters 
of interest. Listings will be provided with flags indicating the PCSA values. 
11.4.3.7 Analysis of 12-lead electrocardiogram status 
A shift table will be provided to present the ECG on-treatment status according to the Baseline 
status within each treatment group. 
11.4.3.8 Bone mineral density 
Descriptive summary will be provided for BMD and its change from Baseline at Week 52 for 
each treatment group. 
11.4.4 Analyses of pharmacokinetic variables 
The PK endpoints are presented in Section 9.3.1. Pharmacokinetic sotagliflozin data may be 
subjected to a population PK analysis, which will be reported separately to the CSR. 
Individual plasma concentrations of sotagliflozin and of sotagliflozin-3-O-glucuronide at nominal 
sampling times will be listed.  
Concentration data will be summarized by visit and, if appropriate, within visit by nominal 
sampling times (pre-dose, 3 hours post-dose), using descriptive statistics by N, geometric mean, 
coefficient of variation, median, minimum and maximum at each visit/nominal sampling time 
point for sotagliflozin-treated patients. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 101 
11.5 
INTERIM ANALYSIS 
No formal interim analysis for efficacy is planned since analysis of primary and key secondary 
efficacy endpoints will be considered final at the time of first step analyses described below. The 
study analyses will be conducted in 2 steps. 
• First step: Efficacy analyses up to Week 26 and interim safety analyses 
The first step analyses will be conducted when all patients have been randomized and have 
their data at the minimum up to Week 26 collected and validated. The first step analyses will 
include: 
- 
Efficacy analyses up to Week 26, which are considered as the final analyses for 
primary and key secondary efficacy endpoints. 
- 
Interim safety analyses which will be performed on all safety data collected and 
validated at the time of the first step analyses. 
The first step analyses will not be used to change the conduct of the ongoing study in any 
aspect. Since the primary and key secondary efficacy analyses would have been concluded at 
the time of the first step analyses, the significance level for the study remains at 0.05 (see 
Section 11.4.2.4). The first step analyses will be included in the submission dossier to health 
authorities. 
• Second step: Final analyses 
The second step analyses will be conducted at the end of the study. The second step analyses 
will include the final analyses of efficacy endpoints at Week 52 and safety endpoints, which 
will be descriptive only. 
Individuals who are involved in the unblinding of the first step analysis will not be involved in the 
conduct of the study afterwards. 
An independent DMC will monitor and assess the safety of patients from this trial through 
periodic review of the accumulated safety data provided by an independent statistical group. 
Related details are provided in separate documents (DMC charter and DMC SAP). 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 102 
12 
ETHICAL AND REGULATORY CONSIDERATIONS 
12.1 
ETHICAL AND REULATORY STANDARDS 
This clinical trial will be conducted by the Sponsor, the Investigator, and delegated Investigator 
staff and Sub-investigator, in accordance with consensus ethics principles derived from 
international ethics guidelines, including the Declaration of Helsinki, and the International 
Council for Harmonisation guidelines for Good Clinical Practice (GCP), all applicable laws, rules 
and regulations. 
This clinical trial will be recorded in a free, publicly accessible, internet-based registry, no later 
than 21 days after the first patient enrollment, in compliance with applicable regulatory 
requirements and with Sanofi public disclosure commitments.  
12.2 
INFORMED CONSENT 
The Investigator (according to applicable regulatory requirements), or a person designated by the 
Investigator, and under the Investigator's responsibility, should fully inform the patient of all 
pertinent aspects of the clinical trial including the written information giving approval/favorable 
opinion by the ethics committee (IRB/IEC). All participants should be informed to the fullest 
extent possible about the study, in language and terms they are able to understand. 
Prior to a patient’s participation in the clinical trial, the written ICF should be signed, name filled 
in and personally dated by the patient or by the patient’s legally acceptable representative, and by 
the person who conducted the informed consent discussion. A copy of the signed and dated 
written ICF will be provided to the patient.  
 
The ICF used by the Investigator for obtaining the patient's informed consent must be reviewed 
and approved by the Sponsor prior to submission to the appropriate ethics committee (IRB/IEC) 
for approval/favorable opinion. 
12.3 
HEALTH AUTHORITIES AND INSTITUTIONAL REVIEW BOARD/INDEPENDENT 
ETHICS COMMITTEE  
As required by local regulation, the Investigator or the Sponsor must submit this clinical trial 
protocol to the health authorities (competent regulatory authority) and the appropriate IRB/IEC, 
and is required to forward to the respective other party a copy of the written and dated 
approval/favorable opinion signed by the chairman with IRB/IEC composition. 
The clinical trial (study number, clinical trial protocol title and version number), the documents 
reviewed (clinical trial protocol, ICF, IB with any addenda or labeling documents, summary of 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 103 
product characteristics, package insert, Investigator’s curriculum vitae, etc) and the date of the 
review should be clearly stated on the written (IRB/IEC) approval/favorable opinion. 
The IMP will not be released at the study site and the Investigator will not start the study before 
the written and dated approval/favorable opinion is received by the Investigator and the Sponsor. 
During the clinical trial, any amendment or modification to the clinical trial protocol should be 
submitted to the health authorities (competent regulatory authority), as required by local 
regulation, in addition to the IRB/IEC before implementation, unless the change is necessary to 
eliminate an immediate hazard to the patients, in which case the health authorities (competent 
regulatory authority) and the IRB/IEC should be informed as soon as possible. They should also 
be informed of any event likely to affect the safety of patients or the continued conduct of the 
clinical trial, in particular any change in safety. All updates to the IB or labeling information, will 
be sent to the IRB/IEC and to health authorities (competent regulatory authority), as required by 
local regulation. 
A progress report is sent to the IRB/IEC at least annually and a summary of the clinical trial’s 
outcome at the end of the clinical trial. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 104 
13 
STUDY MONITORING 
13.1 
RESPONSIBILITIES OF THE INVESTIGATOR(S) 
The Investigator is required to ensure compliance with all procedures required by the clinical trial 
protocol and with all study procedures provided by the Sponsor (including security rules). The 
Investigator agrees to provide reliable data and all information requested by the clinical trial 
protocol (with the help of the e-CRF, Discrepancy Resolution Form [DRF] or other appropriate 
instrument) in an accurate and legible manner according to the instructions provided and to ensure 
direct access to source documents by Sponsor representatives. 
If any circuit includes transfer of data particular attention should be paid to the confidentiality of 
the patient's data to be transferred. 
The Investigator may appoint such other individuals as he/she may deem appropriate as 
Sub-investigators to assist in the conduct of the clinical trial in accordance with the clinical trial 
protocol. All Sub-investigators shall be appointed and listed in a timely manner. The 
Sub-investigators will be supervised by and work under the responsibility of the Investigator. The 
Investigator will provide them with a copy of the clinical trial protocol and all necessary 
information. 
13.2 
RESPONSIBILITIES OF THE SPONSOR OR SERVICE PROVIDER 
The Sponsor and/or service provider of this clinical trial is responsible to regulatory authorities for 
taking all reasonable steps to ensure the proper conduct of the clinical trial as regards ethics, 
clinical trial protocol compliance, and integrity and validity of the data recorded on the e-CRFs. 
Thus, the main duty of the monitoring team is to help the Investigator and the Sponsor maintain a 
high-level of ethical, scientific, technical and regulatory quality in all aspects of the clinical trial. 
At regular intervals during the clinical trial, the site will be contacted, through monitoring visits, 
letters or telephone calls, by a representative of the monitoring team to review study progress, 
Investigator and patient compliance with clinical trial protocol requirements and any emergent 
problems. These monitoring visits will include but not be limited to review of the following 
aspects: patient informed consent, patient recruitment and follow-up, SAE documentation and 
reporting, AESI documentation and reporting, AE and EOSI documentation, IMP allocation, 
patient compliance with the IMP regimen, IMP accountability, concomitant therapy use and 
quality of data. 
13.3 
SOURCE DOCUMENT REQUIREMENTS 
According to the ICH GCP, the monitoring team must check the e-CRF entries against the source 
documents, except for the pre-identified source data directly recorded in the e-CRF. The ICF will 
include a statement by which the patient allows the Sponsor’s duly authorized personnel, the 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 105 
ethics committee (IRB/IEC), and the regulatory authorities to have direct access to original 
medical records which support the data on the e-CRFs (eg, patient’s medical file, appointment 
books, original laboratory records, etc). These personnel, bound by professional secrecy, must 
maintain the confidentiality of all personal identity or personal medical information (according to 
confidentiality and personal data protection rules). 
13.4 
USE AND COMPLETION OF CASE REPORT FORMS AND ADDITIONAL REQUEST 
It is the responsibility of the Investigator to maintain adequate and accurate e-CRFs (according to 
the technology used) designed by the Sponsor/service provider to record (according to Sponsor 
instructions) all observations and other data pertinent to the clinical investigation in a timely 
manner. All e-CRFs should be completed in their entirety in a neat, legible manner to ensure 
accurate interpretation of data. 
Should a correction be made, the corrected information will be recorded into the e-CRF by the 
authorized person and explained (if necessary). All corrected data will be tracked through an audit 
trail.  
Data are available within the system to the CRO as soon as they are entered in the e-CRF. 
The computerized handling of the data by the CRO/service provider may generate additional 
requests (DRF) to which the Investigator is obliged to respond by confirming or modifying the 
data questioned. The requests with their responses will be managed through the e-CRF. 
13.5 
USE OF COMPUTERIZED SYSTEMS 
The complete list of computerized systems used for the study is provided in a separate document 
which is maintained in the Sponsor and Investigator study files. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 106 
14 
ADDITIONAL REQUIREMENTS 
14.1 
CURRICULUM VITAE 
A current copy of the curriculum vitae describing the experience, qualification and training of 
each Investigator and Sub-investigator will be signed, dated and provided to the Sponsor prior to 
the beginning of the clinical trial. 
14.2 
RECORD RETENTION IN STUDY SITES 
The Investigator must maintain confidential all study documentation and take measures to prevent 
accidental or premature destruction of these documents. 
The Investigator should retain the study documents at least 15 years after the completion or 
discontinuation of the clinical trial. 
However, applicable regulatory requirements should be taken into account in the event that a 
longer period is required. 
The Investigator must notify the Sponsor prior to destroying any study essential documents 
following the clinical trial completion or discontinuation. 
If the Investigator's personal situation is such that archiving can no longer be ensured by him/her, 
the Investigator shall inform the Sponsor and the relevant records shall be transferred to a 
mutually agreed upon designee.  
14.3 
CONFIDENTIALITY 
All information disclosed or provided by the Sponsor (or any company/institution acting on their 
behalf), or produced during the clinical trial, including, but not limited to the clinical trial 
protocol, personal data in relation to the patients, the CRFs, the IB, and the results obtained during 
the course of the clinical trial, is confidential, prior to the publication of results. The Investigator 
and any person under his/her authority agree to undertake to keep confidential and not to disclose 
the information to any third party without the prior written approval of the Sponsor. 
However, the submission of this clinical trial protocol and other necessary documentation to the 
ethics committee (IRB/IEC) is expressly permitted, the IRB/IEC members having the same 
obligation of confidentiality. 
The Sub-investigators shall be bound by the same obligation as the Investigator. The Investigator 
shall inform the Sub-investigators of the confidential nature of the clinical trial. 
The Investigator and the Sub-investigators shall use the information solely for the purposes of the 
clinical trial, to the exclusion of any use for their own or for a third party's account. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 108 
14.6 
INSURANCE COMPENSATION 
The Sponsor certifies that it has taken out a liability insurance policy covering all clinical trials 
under its sponsorship. This insurance policy is in accordance with local laws and requirements. 
The insurance of the Sponsor does not relieve the Investigator and the collaborators from any 
obligation to maintain their own liability insurance policy. An insurance certificate will be 
provided to the IECs/IRBs or regulatory authorities in countries requiring this document.  
14.7 
SPONSOR AUDITS AND INSPECTIONS BY REGULATORY AGENCIES 
For the purpose of ensuring compliance with the clinical trial protocol, GCP, and applicable 
regulatory requirements, the Investigator should permit auditing by or on the behalf of the 
Sponsor and inspection by regulatory authorities. 
The Investigator agrees to allow the auditors/inspectors to have direct access to his/her study 
records for review, being understood that these personnel are bound by professional secrecy, and 
as such will not disclose any personal identity or personal medical information. 
The Investigator will make every effort to help with the performance of the audits and inspections, 
giving access to all necessary facilities, data, and documents. 
As soon as the Investigator is notified of a planned inspection by the authorities, he/she will 
inform the Sponsor and authorize the Sponsor to participate in this inspection. 
The confidentiality of the data verified and the protection of the patients should be respected 
during these inspections. 
Any result and information arising from the inspections by the regulatory authorities will be 
immediately communicated by the Investigator to the Sponsor. 
The Investigator shall take appropriate measures required by the Sponsor to take corrective 
actions for all problems found during the audit or inspections. 
14.8 
PREMATURE DISCONTINUATION OF THE STUDY OR PREMATURE CLOSE-OUT OF 
A SITE 
14.8.1 By the Sponsor 
The Sponsor has the right to terminate the participation of either an individual site or the study at 
any time, for any reason, including but not limited to the following:  
• The information on the product leads to doubt as to the benefit/risk ratio. 
• Patient enrollment is unsatisfactory. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 109 
• The Investigator has received from the Sponsor all IMP, means, and information necessary 
to perform the clinical trial and has not included any patient after a reasonable period of 
time mutually agreed upon. 
• Noncompliance of the Investigator or Sub-investigator, delegated staff with any provision 
of the clinical trial protocol, and breach of the applicable laws and regulations or breach of 
the ICH GCP. 
• The total number of patients is included earlier than expected. 
In any case the Sponsor will notify the Investigator of its decision by written notice. 
14.8.2 By the Investigator 
The Investigator may terminate his/her participation upon thirty (30) days' prior written notice if 
the study site or the Investigator for any reason becomes unable to perform or complete the 
clinical trial.  
In the event of premature discontinuation of the study or premature close-out of a site, for any 
reason whatsoever, the appropriate IRB/IEC and regulatory authorities should be informed 
according to applicable regulatory requirements. 
14.9 
CLINICAL TRIAL RESULTS 
The Sponsor will be responsible for preparing a CSR and to provide a summary of study results to 
the Investigator. 
14.10 PUBLICATIONS AND COMMUNICATIONS 
The Investigator undertakes not to make any publication or release pertaining to the study and/or 
results of the study prior to the Sponsor’s written consent, being understood that the Sponsor will 
not unreasonably withhold its approval. 
As the study is being conducted at multiple sites, the Sponsor agrees that, consistent with 
scientific standards, a primary presentation or publication of the study results based on global 
study outcomes shall be sought. However, if no multicenter publication is submitted, underway, 
or planned within twelve (12) months of the completion of this study at all sites, the Investigator 
shall have the right to publish or present independently the results of this study in agreement with 
other Investigators and stakeholders. The Investigator shall provide the Sponsor with a copy of 
any such presentation or publication for review and comment at least 30 days in advance of any 
presentation or submission for publication. In addition, if requested by the Sponsor, any 
presentation or submission for publication shall be delayed for a limited time, not to exceed 
90 days, to allow for filing of a patent application or such other justified measures as the Sponsor 
deems appropriate to establish and preserve its proprietary rights.  
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 110 
The Investigator shall not use the name(s) of the Sponsor and/or its employees in advertising or 
promotional material or publication without the prior written consent of the Sponsor. The Sponsor 
shall not use the name(s) of the Investigator and/or the collaborators in advertising or promotional 
material or publication without having received his/her and/or their prior written consent(s). 
The Sponsor has the right at any time to publish the results of the study. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 111 
15 
CLINICAL TRIAL PROTOCOL AMENDMENTS 
All appendices attached hereto and referred to herein are made part of this clinical trial protocol. 
The Investigator should not implement any deviation from, or changes to the clinical trial protocol 
without agreement by the Sponsor and prior review and documented approval/favorable opinion 
from the IRB/IEC and/or notification/approval of health authorities (competent regulatory 
authority) of an amendment, as required by local regulation, except where necessary to eliminate 
an immediate hazard(s) to clinical trial patients, or when the change(s) involves only logistical or 
administrative aspects of the trial. Any change agreed upon will be recorded in writing, the 
written amendment will be signed by the Investigator and by the Sponsor, and the signed 
amendment will be filed with this clinical trial protocol. 
Any amendment to the clinical trial protocol requires written approval/favorable opinion by the 
IRB/IEC prior to its implementation, unless there are overriding safety reasons. 
In case of substantial amendment to the clinical trial protocol, approval from the health authorities 
(competent regulatory authority) will be sought before implementation. 
In some instances, an amendment may require a change to the ICF. The Investigator must receive 
an IRB/IEC approval/favorable opinion concerning the revised ICF prior to implementation of the 
change and patient signature should be re-collected if necessary. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 112 
16 
BIBLIOGRAPHIC REFERENCES 
1. Kahn SE, Cooper ME, Del Prato S. Pathophysiology and treatment of type 2 diabetes: 
perspectives on the past, present, and future Lancet. 2014;383:1068-83. 
2. International Diabetes Federation. IDF Diabetes Atlas, 7th ed. Brussels, Belgium: 
International Diabetes Federation, 2015. Available from URL: http://www.diabetesatlas.org 
[Accessed December 2016]. 
3. World Health Organization, Regional Office for Europe, Data and Statistics. Available from 
URL: http://www.euro.who.int/en/health-topics/noncommunicable-diseases/diabetes/data-and-
statistics. [Accessed December 2016]. 
4. Bailey CJ. The current drug treatment landscape for diabetes and perspectives for the future. 
Clin Pharmacol Ther. 2015;98(2):170-84. 
5. Hediger MA, Coady MJ, Ikeda TS, Wright EM. Expression cloning and cDNA sequencing of 
the Na+/glucose co-transporter. Nature. 1987;330(6146):379-81. 
6. Mudaliar S, Polidori D, Zambrowicz B, Henry RR. Sodium-Glucose Cotransporter Inhibitors: 
Effects on Renal and Intestinal Glucose Transport: From Bench to Bedside. Diabetes Care. 
2015;38(12):2344-53. 
7. Wright EM. I. Glucose galactose malabsorption. Am J Physiol. 1998;275:G879-82. 
8. Raskin P. Sodium–glucose cotransporter inhibition: therapeutic potential for the treatment of 
type 2 diabetes mellitus. Diabetes Metab Res Rev. 2013;29(5):347-56. 
9. Zambrowicz B, Freiman J, Brown PM, Frazier KS, Turnage A, Bronner J, et al. LX4211, a 
dual SGLT1/SGLT2 inhibitor, improved glycemic control in patients with type 2 diabetes in a 
randomized, placebo-controlled trial. Clin Pharmacol Ther. 2012;92(2):158-69. 
10. Canagliflozin [prescribing information]. Titusville, NJ: Janssen Pharmaceuticals, Inc.;July 
2016:1-15. 
11. Dapagliflozin [prescribing information]. Wilmington, DE: AstraZeneca Pharmaceuticals 
LP;June 2016:1-10. 
12. Empagliflozin [prescribing information]. Ridgefield, CT: Boehringer Ingelheim 
Pharmaceuticals, Inc., and Indianapolis, IN, Eli Lilly and Company;July 2016:1-25. 
13. Zambrowicz B, Lapuerta P, Strumph P, Banks P, Wilson A, Ogbaa I, et al. LX4211 therapy 
reduces postprandial glucose levels in patients with type 2 diabetes mellitus and renal 
impairment despite low urinary glucose excretion. Clin Ther. 2015;37(1):71-82. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 113 
14. American Diabetes Association. Standards of Medical Care in Diabetes – 2017. Diabetes 
Care. 2017;40(Suppl 1):S1-S135. 
15. Kidney Disease: Improving Global Outcomes (KDIGO) CKD Work Group. KDIGO 2012 
Clinical Practice Guideline for the Evaluation and Management of Chronic Kidney Disease. 
Kidney inter., Suppl. 2013;3:1-150. 
16. Levey AS, Bosch JP, Lewis JB, Greene T, Rogers N, Roth D. A more accurate method to 
estimate glomerular filtration rate from serum creatinine: a new prediction equation. 
Modification of Diet in Renal Disease Study Group. Ann Intern Med. 1999;130(6):461-70. 
17. Florkowski CM, Chew-Harris JS. Methods of Estimating GFR - Different Equations Including 
CKD-EPI. Clin Biochem Rev. 2011;32(2):75-9. 
18. National Kidney Foundation. KDOQI Clinical Practice Guideline for Diabetes and CKD: 
2012 update. Am J Kidney Dis. 2012;60(5):850-86. 
19. FDA Guidance for Industry:  Diabetes Mellitus - Developing Drugs and Therapeutic Biologics 
for Treatment and Prevention. Lines 1144 – 1215. Available from: 
http://www.fda.gov/downloads/ 
Drugs/GuidanceComplianceRegulatoryInformation/Guidances/UCM071624.pdf. Accessed 
July 12, 2016. 
20. Seaquist ER, Anderson J, Childs B, Cryer P, Dagogo-Jack S, Fish L, et al. Hypoglycemia and 
diabetes: a report of a workgroup of the American Diabetes Association and the Endocrine 
Society. Diabetes Care. 2013;36(5):1384-95. 
21. Hochberg Y. A Sharper Bonferroni Procedure for Multiple Tests of Significance. Biometrika. 
1988;75(4):800–2. 
22. Mancia G, Fagard R, Narkiewicz K, Redon J, Zanchetti A, Böhm M, et al. 2013 ESH/ESC 
guidelines for the management of arterial hypertension: the task force for the management of 
arterial hypertension of the European Society of Hypertension (ESH) and of the European 
Society of Cardiology (ESC). Eur Heart J. 2013;34(28):2159-219.  
 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 114 
17 
APPENDICES 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 115 
Appendix A 
Guidance on contraceptive methods and collection of pregnancy 
information 
DEFINITIONS 
Nonreproductive potential 
1. Premenopausal female with 1 of the following: 
- 
Documented hysterectomy 
- 
Documented bilateral salpingectomy 
- 
Documented bilateral oophorectomy 
2. Postmenopausal 
- 
A postmenopausal state is defined as no menses for 12 months without an alternative 
medical cause. A high FSH level in the postmenopausal range may be used to confirm 
a postmenopausal state in women not using hormonal contraception or hormone 
replacement therapy (HRT). However, in the absence of 12 months of amenorrhea, a 
single FSH measurement is insufficient.  
- 
Females on HRT and whose menopausal status is in doubt will be required to use 1 of 
the highly effective contraception methods if they wish to continue their HRT during 
the study. Otherwise, they must discontinue HRT to allow confirmation of 
postmenopausal status before study enrollment. 
Reproductive potential (WOCBP) 
A woman is considered of reproductive potential (WOCBP), ie, fertile, following menarche and 
until becoming postmenopausal unless permanently sterile. Permanent sterilization methods 
include hysterectomy, bilateral salpingectomy and bilateral oophorectomy. 
CONTRACEPTIVE GUIDANCE 
Women of reproductive potential (WOCBP) must use a highly effective method of contraception 
during the treatment period and the post-treatment follow up period (28 ±3 days). If another 
contraceptive method is used (such as a barrier method), it should be used in combination with 
one of the highly effective methods (such as an oral contraceptive). 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 116 
Female patients: 
Highly Effective Contraceptive Methods That Are User Dependent 
Failure rate of <1% per year when used consistently and correctlya 
• Combined (estrogen- and progestogen-containing ) hormonal contraception associated 
with inhibition of ovulation 
- 
oral 
- 
intravaginal 
- 
transdermal 
• Progestogen-only hormone contraception associated with inhibition of ovulation 
- 
oral 
- 
injectable 
Highly Effective Methods That Are User Independent 
• Implantable progestogen-only hormone contraception associated with inhibition of 
ovulation 
• Intrauterine device (IUD) 
• Intrauterine hormone-releasing system (IUS) 
• Bilateral tubal occlusion 
• Vasectomized partner 
(Vasectomized partner is a highly effective contraceptive method provided that the partner is the sole 
sexual partner of the woman of childbearing potential and the absence of sperm has been confirmed. If 
not, an additional highly effective method(s) of contraception should be used. Spermatogenesis cycle is 
approximately 90 days.) 
• Sexual abstinence 
(Sexual abstinence is considered a highly effective method only if defined as refraining from 
heterosexual intercourse during the entire period of risk associated with the study drug. The reliability 
of sexual abstinence needs to be evaluated in relation to the duration of the study and the preferred and 
usual lifestyle of the patient.) 
NOTE: 
a Typical use failure rates may differ from those when used consistently and correctly. Use should be consistent with local regulations 
regarding the use of contraceptive methods for patients participating in clinical studies. 
 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 117 
COLLECTION OF PREGNANCY INFORMATION 
Male patients with partners of reproductive potential who become pregnant  
• The Investigator will attempt to collect pregnancy information on any female partner of a 
male study patient who becomes pregnant while participating in this study. This applies 
only to patients who receive study treatment. 
• After obtaining the necessary signed informed consent from the pregnant female partner 
directly, the Investigator will record pregnancy information on the appropriate form and 
submit it to the Sponsor within 24 hours of learning of the partner’s pregnancy.  
• Partner will also be followed to determine the outcome of the pregnancy. Information on 
the status of the mother and child will be forwarded to the Sponsor.  
• Generally, follow-up will be no longer than 6 to 8 weeks following the estimated delivery 
date. Any termination of the pregnancy will be reported regardless of fetal status (presence 
or absence of anomalies) or indication for procedure.  
Female patients who become pregnant  
• The Investigator will collect pregnancy information on any female patient, who becomes 
pregnant while participating in this study.  
• Information will be recorded on the appropriate form and submitted to the Sponsor within 
24 hours of learning of a participant's pregnancy.  
• Participant will be followed to determine the outcome of the pregnancy. The Investigator 
will collect follow-up information on participant and neonate, which will be forwarded to 
the Sponsor. Generally, follow-up will not be required for longer than 6 to 8 weeks beyond 
the estimated delivery date.  
• Any termination of pregnancy will be reported, regardless of fetal status (presence or 
absence of anomalies) or indication for procedure.  
• While pregnancy itself is not considered to be an AE or SAE, any pregnancy complication 
or elective termination of a pregnancy will be reported as an AE or SAE.  
• A spontaneous abortion is always considered to be an SAE and will be reported as such. 
• Any SAE occurring as a result of a post-study pregnancy which is considered reasonably 
related to the study treatment by the Investigator, will be reported to the Sponsor as 
described in Section 10.4.3. While the Investigator is not obligated to actively seek this 
information in former study patients, he/she may learn of an SAE through spontaneous 
reporting. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 118 
Appendix B 
Recommendations on basic genito-urinary hygiene, maintaining 
hydration, and recognizing diabetic ketoacidosis 
Patients with T2D are at risk for developing GU infections. The following guidelines should be 
communicated to females and uncircumcised males regarding GU infections. Patient 
communication cards will be printed with the following: 
For females: 
“The following advice may be useful in helping you to keep your bladder and urethra free from 
infection: 
• Go to the toilet as soon as you feel the need to urinate, rather than holding it in.  
• Wipe from front to back after going to the toilet.  
• Practice good hygiene by washing your genitals every day, and before having sex.  
• Empty your bladder after having sex.”  
For uncircumcised males: 
“The following advice may be useful in helping you to keep the foreskin free from infection: 
• Wash the end of your penis and foreskin with soap and water (do not let soap get in the 
opening).  
• After your shower or bath, dry the end of your penis and foreskin properly and replace the 
foreskin.  
• Also, when you urinate, slide the foreskin back enough so that urine does not get on the 
foreskin-this helps to keep it clean.” 
Maintaining Hydration: 
Sodium-glucose cotransporter type 2 inhibitors are associated with osmotic diuresis and volume 
depletion, which may lead to dizziness or hypotension, especially in the elderly. Before initiating 
study drug (at Screening, Run-in and Randomization) and during all on-site study visits thereafter, 
assess volume status in patients with renal impairment, the elderly, in patients with low SBP, or if 
receiving diuretics, angiotensin-converting-enzyme inhibitors, or angiotensin receptor blockers. 
All patients will be advised to maintain proper fluid intake and to consider increasing it if they 
sense greater thirst, more urine production, or if they feel dizzy or faint. 
Patient communication cards will be printed with the following for patients with T2D: 
“The following advice may be useful in helping you to maintain proper hydration and prevent 
dehydration: 
• Dehydration is when your body loses too much fluid, frequently due to diarrhea or 
increased urination 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 119 
• Consider increasing the amount of fluids you drink if: 
- 
You sense greater thirst than usual 
- 
You have a dry mouth or cracked lips 
- 
You have a fever 
- 
You have diarrhea or vomiting  
- 
You urinate more frequently or in larger amounts than usual 
- 
You get up in the middle of the night to urinate (more than usual) 
- 
You feel dizzy or light-headed 
- 
You exercise, or when it is hot outside” 
Recognizing Diabetic Ketoacidosis 
Potential gastrointestinal (GI) AEs occurring with sotagliflozin may mask presenting symptoms of 
diabetic ketoacidosis (DKA). Patient communication cards will be printed with the following: 
“If you have any of these symptoms on the list, then contact your study site immediately for 
assistance with managing your diabetes: 
• Inability to maintain oral intake 
• Generalized weakness 
• Abdominal (belly) pain 
• Increased weight loss 
• Fever 
• Frequent urination, including at night 
• Fruity-scented breath 
• Confusion 
• Acute illness 
• Consistently elevated blood glucose 
• Feeling very thirsty or drinking a lot 
• Nausea or vomiting 
• Having trouble thinking clearly or feeling tired 
It is possible to have DKA even if your blood glucose is not elevated. Regardless of your blood 
glucose level, if you have any of these symptoms on the list, then contact your study site 
regarding the need to be evaluated for possible DKA, which will include specific blood testing. If 
your study site is closed and your study doctor is not available, go to the nearest emergency room 
for evaluation. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 120 
If you are scheduled for a procedure or surgery that requires you to not take any food or liquids, 
please contact your study doctor for instructions on continuing study drug. In such cases your 
study doctor may advise you NOT to take your study drug from the day prior to the procedure or 
surgery until after the procedure or surgery is complete, and you are taking food and liquids as 
you normally do.” 
Whenever AE data is collected or the patient reports DKA or intercurrent illness (including 
infections), generalized weakness, increased weight loss, GI symptoms including nausea, 
vomiting, or abdominal pain or other symptoms or signs that the Investigator believes may be 
consistent with DKA, then the site will determine if an assessment for DKA is appropriate. If 
laboratory testing confirms presence of metabolic acidosis, then the “Possible DKA” e-CRF will 
be completed. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 121 
Appendix C 
Measurement of Blood Pressure and Pulse Rate  
Equipment 
1. Blood pressure measurements will be taken by an automated BP monitor or a manual 
sphygmomanometer 
2. Bladder Length – Should nearly or completely encircle the patient’s arm. For many adults, 
the standard “adult” size bladder is not long enough and the “large” size bladder is 
recommended 
3. Bladder Width – Should be at least 40% of the bladder length 
Patient Factors 
Extraneous variables associated with the measurement of BP should be minimized. These include: 
1. Food intake, caffeine-containing beverages, cigarette smoking, or strenuous exercise 
within 2 hours prior to measurement 
2. Full urinary bladder 
3. The patient should not be allowed to talk while BP is being measured 
4. The patient should be placed in the examination room and the cuff should be placed on the 
patient’s nondominant arm. The proper sized cuff should fit snugly with the lower edge 
2 to 3 cm above the antecubital fossa 
5. The patient should be allowed to sit quietly in a comfortably warm place (temperature 
around 25°C or 77°F) for 5 minutes with the arm supported at heart level, preferably with 
the cuff in place and with no restrictive clothing on the arm. The patient should be 
encouraged not to tense his or her muscles. 
Determination of the arm with the highest blood pressure 
At Visit 1 (week -4), seated BP should be measured in both arms after 5-minute rest period, and 
then again after 1 minute in both arms in seated position. The arm with the highest SBP will be 
determined at this visit, and BP should be measured in this arm throughout the study. 
Measurement Technique (22) 
At Visit 1, immediately following arm selection, with the patient in the same position, an 
additional seated BP should be measured in the selected arm (at least 1 minute after last 
measurement). 
At all other on-site visits, following the 5-minute rest period, 3 separate seated BPs should be 
measured in the arm selected at Visit 1, with at least 1 minute between BP measurements and with 
the cuff fully deflated between measurements. 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)

Amended Clinical Trial Protocol No. 01  
20-Dec-2017 
EFC14837 - sotagliflozin 
Version number: 1 
Property of the Sanofi Group - strictly confidential 
Page 122 
All 3 BPs will be recorded in the patient’s e-CRF. The mean of the 3 seated BPs will constitute 
the BP value for that visit. 
Three seated pulse rate measurements will also be obtained. The mean of the 3 seated pulse rate 
measurements will constitute the pulse rate value for that visit. 
 
(electronic 
 
 
 
1.0)
(electronic 
 
 
 
1.0)