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Mar 20, 2026
A Cleveland Clinic study of nearly 8,000 patients found minimal weight regain one year after stopping semaglutide or tirzepatide, contrasting with clinical trial results. Meanwhile, Eli Lilly's retatrutide and Roche's petrelintide continue development as next-generation obesity treatments.
Mar 06, 2026
Genentech announced positive Phase II results for petrelintide, showing up to 10.7% mean weight loss versus 1.7% placebo at week 42 in people with overweight and obesity, with placebo-like tolerability.
Mar 06, 2026
Zealand Pharma's petrelintide achieved up to 10.7% average weight loss after 42 weeks in a 493-patient phase 2 trial, with placebo-like tolerability but lower efficacy than competing amylin drugs, causing Zealand shares to drop 34%.
Mar 06, 2026
Genentech announced positive Phase II results for CT-388, a dual GLP-1/GIP receptor agonist, showing 22.5% placebo-adjusted weight loss at 48 weeks in people with obesity. The treatment was well-tolerated with low discontinuation rates.
Mar 06, 2026
Roche announced positive phase II results for obesity drug petrelintide showing 10.7% weight reduction, while the FDA set a December 18 decision date for breast cancer drug giredestrant.
