3 However, the active forms of GLP-1 have a very short plasma half-life (less than 2 minutes) due to rapid degradation by the enzyme dipeptidyl peptidase-4 (DPP-4)
GLP-1 is a type of incretin hormone, meaning its created in the gut and released after eating a meal
Changes also depend on how each person reacts
As of August 2026, all four core Phase 3 TRIUMPH trials for retatrutide (Eli Lillys triple agonist targeting GLP-1, GIP, and glucagon receptors) have reported strong efficacy data, including up to 28.7% mean weight loss and cardiovascular benefits
Dose escalation should not occur during acute illness, periods of poor oral intake, or when gastrointestinal symptoms from the current dose remain problematic
What Commonly Causes This