Lilly's triple agonist heads to regulators after two more Phase 3 obesity wins

Eli Lilly's triple agonist, retatrutide, met primary endpoints in two additional Phase 3 obesity trials (TRIUMPH-2 and TRIUMPH-3), delivering up to ~20–22.6% weight loss at 80 weeks.

The drug is a once-weekly GIP, GLP-1, glucagon triple hormone receptor agonist, with one of the highest weight loss profiles seen in clinical trials to date.

Lilly plans to submit a Biologics License Application (BLA) to the FDA in Q1 2027, with global regulatory submissions for obesity, knee osteoarthritis pain, and obstructive sleep apnea expected around the same timeframe.

Sources:

Lilly's triple agonist, retatrutide, successful in two additional Phase 3 obesity trials, delivering significant improvements in weight and A1C | Eli Lilly and Company

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