Efficacy and Safety of Ribupatide Administered Once Weekly Compared With Semaglutide and Placebo in Participants Living With Obesity Who Do Not Have Diabetes

Key Inclusion Criteria:

* BMI ≥35 kilograms per square meter (kg/m\^2).
* History of being unresponsive to at least 1 self-reported effort to lose weight with diet and/or exercise in the last 6 months.

Key Exclusion Criteria:

* Current diagnosis or history of diabetes mellitus.
* Started medications within 3 months prior to Screening that may cause significant weight change, including, but not limited to, tricyclic antidepressants, atypical antipsychotics, mood stabilizers, and phentermine.
* Unstable weight defined as self-reported change in body weight exceeding 5% within the 3 months prior to Screening.
* Family or personal history of multiple endocrine neoplasia Type 2 or medullary thyroid cancer.
* Uncontrolled hypertension or unstable cardiovascular disease.
* History of chronic or acute pancreatitis.
* Known clinically significant gastric-emptying abnormality or chronic treatment with medications that directly affect gastrointestinal motility.
* History of suicide attempt.
* History of significant active or unstable Major Depressive Disorder (MDD) or other severe psychiatric disorder.
* Received treatment with semaglutide, tirzepatide, glucagon-like peptide-1 receptor (GLP-1R) agonist, GLP-1/glucose-dependent insulinotropic polypeptide (GIP), or glucagon receptor agonist within 3 months prior to Screening.

Note: Additional inclusion/exclusion criteria may apply, per protocol.