Lilly’s triple-hormone retatrutide shows leading obesity trial results
Phase 3 data show Lilly’s investigational triple-hormone drug retatrutide delivering up to 28.3% average weight loss over 80 weeks at the highest dose (vs. 2.2% placebo), with about 45% of patients achieving 30%+ loss and even greater reductions in those with BMI ≥35. A lower 4 mg dose yielded 19% weight loss with better tolerability. Common side effects were GI (nausea, diarrhea, constipation); no major cardiac or liver issues were observed. If results hold, Lilly could file for approval, potentially solidifying retatrutide as a top player in a booming obesity market, ahead of Novo Nordisk’s competing therapies.