However, Phase 2 trials are not always powered or designed to detect rare psychiatric adverse events, and longer-term Phase 3 data which would provide a more comprehensive safety profile had not been fully published at the time of writing
In the STEP-1 trial, it led to ~15% mean weight loss at 68 weeks
The cyclisation of Melanotan II addresses this limitation through a 23-atom lactam bridge connecting the side chains of an Asp residue and a Lys residue, constraining the central His-D-Phe-Arg-Trp recognition motif into the receptor-binding conformation
While simple fatty liver rarely causes problems, MASH can progress to cirrhosis and liver failure over years or decades
However, as the popularity of GLP-1 drugs has surged, so have reports of serious side effects, such as stomach paralysis, intestinal obstructions and vision loss
Tirzepatide, Retatrutide, and Breniperatide all remind me of Exenatide, the peptide famously discovered in the saliva of a lizard