Orforglipron for maintenance of body weight reduction: the double-blind, randomized phase 3b ATTAIN-MAINTAIN trial - Report - MDSpire

Orforglipron for maintenance of body weight reduction: the double-blind, randomized phase 3b ATTAIN-MAINTAIN trial

  • By

  • Louis J. Aronne

  • Deborah B. Horn

  • Carel W. le Roux

  • Ariana M. Chao

  • Wayne Ho

  • Bruno Halpern

  • Ryan Griffin

  • Cathy Xie

  • Elisa Gomez Valderas

  • Clare J. Lee

  • Anderson Ribeiro

  • David M. Hyman

  • Leonard Glass

  • Neena Xavier

  • May 13, 2026

  • 0 min

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Clinical Report: Orforglipron for Sustaining Weight Loss: Results from the ATTAIN-MAINTAIN Study

Overview

The ATTAIN-MAINTAIN study evaluated the efficacy and safety of orforglipron in maintaining weight loss after transitioning from injectable therapies. Results indicate that orforglipron effectively supports weight maintenance in individuals with obesity, demonstrating a favorable safety profile.

Background

Obesity is a chronic disease that often requires long-term management strategies to prevent weight regain after initial loss. Injectable obesity management medications (OMMs) have shown efficacy, but patient adherence remains a challenge. Orforglipron, a novel oral GLP-1 receptor agonist, presents a potential solution by addressing barriers associated with injectable therapies.

Data Highlights

{'table': {'mean_body_weight': {'cohort_1': '90.1 kg', 'cohort_2': '94.4 kg'}}}

Key Findings

  • Orforglipron demonstrated significant weight maintenance after transitioning from injectable therapies.
  • Completion rates were high, with 85.9% in cohort 1 and 84.2% in cohort 2.
  • The study included 376 participants across 29 sites in the USA.
  • Orforglipron's safety profile was comparable to that of existing injectable OMMs.
  • Participants had a mean age of 48.5 years, predominantly female (62.9%) and white (73.8%).

Clinical Implications

The findings suggest that orforglipron may enhance patient adherence to weight management regimens by providing a non-injectable option. Clinicians should consider this oral therapy as part of a comprehensive obesity management plan, particularly for patients who struggle with injectable treatments.

Conclusion

Orforglipron represents a promising advancement in obesity management, potentially improving long-term weight maintenance outcomes for patients transitioning from injectable therapies.

Related Resources & Content

  1. Eli Lilly and Company, Investor News, 2026 -- Lilly's orforglipron helped people maintain weight loss after switching from injectable incretins to oral GLP-1 therapy in first-of-its-kind Phase 3 trial
  2. conexiant, FDA Approves Lilly’s Foundayo Oral GLP-1 Pill, 2026 -- FDA Approves Lilly’s Foundayo Oral GLP-1 Pill
  3. The Journal of Clinical Endocrinology & Metabolism, 2025 -- Impact of Weight Reduction on Vitamin D Levels in Obese Women Compared to Men: Findings from a Randomized Clinical Trial
  4. Obesity Surgery, 2020 -- Long-Term Weight Regain After Roux-en-Y Gastric Bypass: Effects of Liraglutide and Surgical Revision in a Prospective Study
  5. Nutrition and Obesity Guidelines and Algorithms | American Association of Clinical Endocrinology, 2025 -- Nutrition and Obesity Guidelines and Algorithms
  6. Obesity Surgery — Exploring the Use of GLP-1 Receptor Agonists for Addressing Inadequate Weight Loss or Regain Following Bariatric Surgery
  7. Effect of Continued Weekly Subcutaneous Semaglutide vs Placebo on Weight Loss Maintenance in Adults With Overweight or Obesity: The STEP 4 Randomized Clinical Trial
  8. Nutrition and Obesity Guidelines and Algorithms | American Association of Clinical Endocrinology
  9. Lilly's orforglipron helped people maintain weight loss after switching from injectable incretins to oral GLP-1 therapy in first-of-its-kind Phase 3 trial | Eli Lilly and Company

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