Primary Objectives:

• Main study: To assess in overweight to obese subjects and type 2 diabetes mellitus (T2DM) patients not requiring anti-diabetic pharmacotherapy the safety and tolerability of 3 different dose escalation regimens of SAR425899 in terms of the relative and absolute frequency and severity of gastrointestinal (GI) adverse events (AEs).
• Six-month safety extension period: To assess the safety and tolerability of SAR425899 after 6 months treatment at the maximum dose that was individually well tolerated during the main part of the study in terms of the relative and absolute frequency and severity of GI AEs.

Secondary Objectives:

Main study and 6-month study extension period:

To assess in overweight to obese subjects and T2DM patients not requiring anti-diabetic pharmacotherapy:

• The effect of once-daily dosing of SAR425899 on body weight (BW), fasting plasma glucose (FPG), and hemoglobin A1c (HbA1c).
• Safety and tolerability.

Main study: The maximum study duration is approximately 12 weeks per patient (up-to 3-week screening period, 8-week treatment period, 3-day post treatment follow-up period).

Six-month study extension period: The maximum study duration is approximately 9 months (up-to 3-week screening period, 8-month treatment period, 3-day post treatment follow-up period).

Inclusion criteria:

• Male or female overweight to obese subjects and type 2 diabetes mellitus (T2DM) patients not requiring anti-diabetic pharmacotherapy.
• Patients who are motivated to lose weight.

Exclusion criteria:

• Type 1 diabetes mellitus.
• Body mass index <27 kg/m2.
• Screening hemoglobin A1c (HbA1c; glycosylated hemoglobin) >7.0%.
• Previous treatment with glucose-lowering agent(s) (eg, insulin, thiazolidinediones, metformin, DPP-IV inhibitors (dipeptidylpeptidase 4), SGLT-2 (sodium dependent glucose transporter-2) inhibitors, etc) within the last 6 months.
• Previous treatment with glucagon-like peptide 1 (GLP-1) receptor agonists within the last 6 months.
• Uncontrolled hypertension.
• Laboratory findings at the time of screening: amylase and/or lipase >2 times the upper limit of the normal laboratory range (ULN), alanine aminotransferase >1.5 ULN, total bilirubin >1.5 ULN, serum creatinine levels ≥1.5 mg/dL [males]. ≥1.4 mg/dL [females], screening calcitonin ≥20 pmol/m, fasting serum triglycerides >400 mg/dL.
• Personal or immediate family history of medullary thyroid cancer (MTC) or genetic conditions that predispose to MTC.
• History of weight loss surgery.
• History of pancreatitis or pancreatectomy.
• Pregnant or lactating women.
• Women of childbearing potential (WOCBP) not protected by highly-effective method(s) of birth control and/or who are unwilling or unable to be tested for pregnancy.

The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.

Qualified researchers may request access to patient level data and related study documents including the clinical study report, study protocol with any amendments, blank case report form, statistical analysis plan, and dataset specifications. Patient level data will be anonymized and study documents will be redacted to protect the privacy of trial participants. Further details on Sanofi's data sharing criteria, eligible studies, and process for requesting access can be found at: https://vivli.org