Eli Lilly’s retatrutide reached 23% weight loss in people with type 2 diabetes
Triple pathway
Retatrutide targets GLP-1, GIP, and glucagon receptors instead of relying on the GLP-1 pathway alone. At the highest dose, more than half of participants no longer met the criteria for obesity, and nearly 40% reached a normal A1C. The New England Journal of Medicine published the phase 3 article on September 30, 2026.
Eli Lilly reported that its investigational triple agonist produced an average 70.3-pound weight loss at the highest dose.
Eli Lilly reported that more than half of participants no longer had obesity and nearly 40% reached a normal A1C at the highest dose.
The New England Journal of Medicine published a phase 3 article on retatrutide as a triple hormone-receptor agonist.
The 70.3-pound figure is the headline, but the glucagon piece may matter more over time. TRIUMPH-1’s NEJM results also showed lower fasting insulin and better glucose control, which hints retatrutide could reach beyond “take this to lose weight.” I’m still wary of treating 80 weeks as the finish line.
The 70.3-pound figure is the headline, but the glucagon piece may matter more over time. TRIUMPH-1’s NEJM results also showed lower fasting insulin and better glucose control, which hints retatrutide could reach beyond “take this to lose weight.” I’m still wary of treating 80 weeks as the finish line.








