A phase 2 liver trial where the add-on drug didn't help — and the base drug quietly did
Read the Sunday Brief →

Study wrapper · #976

Coadministered Cagrilintide and Semaglutide in Adults with Overweight or Obesity.

Garvey WT, Blüher M, Osorto Contreras CK, et al. The New England journal of medicine. 2025.

Editor's note

The pivotal REDEFINE 1 phase 3a trial (3417 participants, 68 weeks) reporting a mean weight change of -20.4% with cagrilintide-semaglutide versus -3.0% with placebo. Gastrointestinal adverse events were common but mostly mild-to-moderate and transient. High-quality primary human evidence directly on both tracked peptides.

Plain-language abstract

In this phase 3 trial, cagrilintide-semaglutide was associated with about 20% body-weight reduction versus 3% with placebo in adults with overweight or obesity.