Overview

The purpose of this study is to assess the efficacy and safety of enicepatide, a dual glucagon-like peptide-1 (GLP-1)/glucose-dependent insulinotropic polypeptide (GIP) receptor agonist (RA) being developed for chronic weight management, as an adjunct to a reduced-calorie diet and increased physical activity in participants without Type 2 diabetes mellitus (T2DM) who have obesity or overweight with at least one weight-related comorbidity, and in participants with T2DM who have obesity or overweight.

Eligibility

Inclusion Criteria:

• Body mass index (BMI) ≥24.0 kilograms per meter squared (kg/m\^2) for participants with type 2 diabetes mellitus (T2DM)
• BMI ≥28.0 kg/m\^2 or BMI ≥24.0 and \<28.0 kg/m\^2 and diagnosed with at least one weight-related comorbidity (prediabetes, hypertension, dyslipidemia, fatty liver, obstructive sleep apnea, or weight-related cardiovascular disease) for participants without T2DM
• Agreement to adhere to the contraception requirements

Exclusion Criteria:

• History of Type 1 diabetes mellitus (T1DM)
• Obesity induced by other endocrinologic disorders
• Any planned major medical procedure or surgery during the study
• History of significant active or unstable major depressive disorder (MDD) or other severe psychiatric disorder
• Any lifetime history of suicide attempt
• History of any hematologic conditions that may interfere with HbA1c measurement
• History of acute or chronic pancreatitis or clinically significant gallbladder disease
• Treatment with any approved or investigational GLP-1-RA-based therapy within 6 months prior to randomization
• Treatment with other investigational therapy within 3 months prior to randomization or less than 5 elimination half-lives prior to randomization, whichever is longer
• Known allergy to any component of the study drug formulation or any other condition that is a contraindication to GLP-1 RAs or GLP-1/GIP RAs