The total human evidence base, as of this writing, consists of the following: 1) a Phase I safety trial of 42 healthy volunteers that was registered in 2015, canceled in 2016, and never published, 2) a retrospective case series of 12 patients with knee pain, no control group, and no validated outcome measure, and 3) a 2025 pilot safety study involving two healthy adults who received intravenous infusions at a single private clinic in Florida
11 of these 12 patients reported improvement in their symptoms after telephone follow up
We don't just offer "drips"
Retatrutide hits GLP-1, GIP, and glucagon
Carboni I, De Felice C, De Simoni I, Soda R, Chimenti S