A Master Protocol to Investigate the Efficacy and Safety of Orforglipron Tablet Once Daily Compared With Placebo in Participants With Obesity or Overweight With and Without Type 2 Diabetes

Clinical Trial24 Apr 2026Phase 3

A Master Protocol to Investigate the Efficacy and Safety of Orforglipron Tablet Once Daily Compared With Placebo in Participants With Obesity or Overweight With and Without Type 2 Diabetes

Eli Lilly and Company

Orforglipron, Eli Lilly's oral small-molecule GLP-1 receptor agonist, is being tested against placebo for weight management in people with obesity or overweight without type 2 diabetes. The phase 3 trial targets 600 participants over 18 months, measuring percent change in body weight as the primary endpoint. This represents Eli Lilly's push to expand orforglipron beyond its April 2026 FDA approval for type 2 diabetes into the weight management market, competing directly with Novo Nordisk's approved oral semaglutide for obesity. The trial is part of a broader master protocol evaluating orforglipron across multiple obesity-related populations.

Strategic Signal

Eli Lilly is racing to establish orforglipron in weight management before Novo Nordisk's oral semaglutide dominates the oral obesity market following its January 2026 approval. This trial specifically targets people without diabetes, positioning orforglipron as a first-line oral option for weight management rather than just diabetes spillover. The 18-month timeline suggests data by late 2027, potentially enabling a 2028 obesity filing if successful.

GLP-1Weight lossEli Lilly

Original Abstract

The main purpose of this study is to see how orforglipron, compared with placebo, helps reduce body weight in participants with obesity or with overweight and at least one other related health condition (excluding type 2 diabetes). This trial is part of the master protocol study J2A-MC-GZPO (NCT06993792). Participation in the study will last about 18 months. | Condition(s): Obesity; Overweight | Primary endpoint(s): Percent Change from Baseline in Body Weight | Enrollment: 600 (estimated) | Phase: Phase 3 | Sponsor: Eli Lilly and Company | Expected completion: 2027-08 | Status: Active Not Recruiting | Last update: 2026-04-24

View original source ↗

Related signals

Strategic Signal

FDA1 Apr 2026New Drug Approval (NDA/BLA)High impact● 10/10i

FDA Approves Foundayo (Orforglipron) — New Drug Approval (NDA/BLA)

FDA approved orforglipron (Foundayo, Eli Lilly) for type 2 diabetes -- a once-daily oral small-molecule GLP-1 receptor agonist. Orforglipron is the first non-peptide oral GLP-1 approved in the US; oral semaglutide (Rybelsus, Novo Nordisk) has been approved for T2D since 2019 and expanded to obesity in January 2026. Unlike Rybelsus, orforglipron requires no fasting or water volume restrictions before dosing.

GLP-1Type 2 diabetesPricing/accessEli Lilly Novo Nordisk

Strategic Signal

Clinical Trial19 Mar 2026Phase 3High impact● 9/10i

Efficacy and Safety of Tirzepatide Once Weekly in Participants Without Type 2 Diabetes Who Have Obesity or Are Overweight With Weight-Related Comorbidities: A Randomized, Double-Blind, Placebo-Controlled Trial (SURMOUNT-1)

Phase 3 SURMOUNT-1 tests once-weekly tirzepatide at three doses versus placebo in adults without type 2 diabetes who have obesity or are overweight with comorbidities. The randomized, double-blind trial targets 2,539 participants with primary efficacy assessment at 72 weeks. This represents tirzepatide's pivotal obesity trial against placebo, potentially supporting Eli Lilly's bid to compete directly with Wegovy in the non-diabetic obesity market. A prediabetes subgroup continues long-term to assess diabetes prevention.

Weight lossGLP-1Eli Lilly

Strategic Signal

FDA19 Mar 2026Supplemental Approval: Efficacy [Priority Review]High impact● 9/10i

FDA Approves Imcivree (Setmelanotide): Supplemental Approval: Efficacy [Priority Review]

FDA approved a supplemental application for Imcivree (setmelanotide, Rhythm) on March 19, 2026, under priority review. This represents an efficacy-based label expansion for the melanocortin-4 receptor agonist, which was initially approved for rare genetic obesity disorders. Rhythm gains additional indication breadth in the specialized rare obesity market, where treatment options remain extremely limited. The priority review designation signals FDA recognition of significant unmet medical need in the expanded patient population.

Weight lossOtherRhythm

Strategic Signal

Clinical Trial17 Apr 2026Phase 3High impact● 8/10i

A Phase 3, Open-Label Study of Once Daily LY3502970 Compared With Insulin Glargine in Adult Participants With Type 2 Diabetes and Obesity or Overweight at Increased Cardiovascular Risk

Phase 3 open-label trial compared once-daily oral orforglipron versus insulin glargine in people with type 2 diabetes and obesity or overweight at increased cardiovascular risk. The study enrolled 2,749 participants with primary endpoint of time to first major adverse cardiovascular event, completed in March 2026. Eli Lilly is positioning orforglipron as a cardiovascular outcomes option in high-risk populations, directly competing with established insulin therapy in this indication. This represents the first cardiovascular outcomes trial for orforglipron following its April 2026 FDA approval for type 2 diabetes.

GLP-1Type 2 diabetesWeight lossCardiovascularEli Lilly