Unlike GLP-1 agonists, it preserves lean muscle mass during caloric restriction
One marker to consider is ketone production
When ligands were present in the nGLP-1R stock solutions peptide ligands (exendin-4, exendin-4 [9-39] , oxyntomodulin and GLP-1) were at 20 M and small molecule ligands (6-BPPI, Boc5, T-0632 and TT15) were at 100 M
On May 21, 2026, Lilly reported that it met its primary endpoint, delivering the largest average weight loss of any retatrutide Phase 3 trial to date
Both animals received the higher doses from the beginning, and the blood sampling schedule was changed to collecting blood for up to 3 weeks and 1 week prior to vaccination, on vaccination day, and 2, 3 and 4 weeks following each injection to better resolve the vaccine responses over time