Weight regain now has a timetable — and a Nature mouse study tests the limits of semaglutide enthusiasm
Read the Sunday Brief →

Study wrapper · #1174

Predicted 10-Year Cardiovascular Disease Risk Reduction with Tirzepatide Use Over Three Years for Primary Prevention of Cardiovascular Disease in Obesity.

Sattar N, Mamas M, Li R, et al. European journal of preventive cardiology. 2026.
SupportedRCTMentions: Tirzepatide

Editor's note

The strength here is the source, a large randomized, placebo-controlled trial running 176 weeks, which is rare territory for obesity drugs. The limitation is that the endpoint is a Framingham risk equation, not actual cardiovascular events, and post hoc analyses of surrogate scores tend to run ahead of what outcome trials later confirm. The authors' cross-check against REWIND, where predicted and observed effects roughly agreed, is a reasonable credibility test, but the definitive answer awaits the event-driven SURMOUNT-MMO trial. Several authors are affiliated with the manufacturer, which readers should weigh.

Plain-language abstract

In a follow-on analysis of the 3-year SURMOUNT-1 trial, people with obesity and prediabetes on tirzepatide 15 mg saw their calculated 10-year heart-disease risk fall, while the placebo group's calculated risk rose. The authors stress these are modeled risk scores, not counted heart events, and that dedicated outcome trials are still needed.