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

Study wrapper · #1375

Comparative outcomes for tirzepatide versus glucagon-like peptide-1 receptor agonists in patients with inflammatory bowel disease: a national propensity matched study.

Patel KS, Fakhoury B, Parmar K, et al. Intestinal research. 2026.
SupportedCohortMentions: Tirzepatide

Editor's note

Propensity-matched with 3,042 patients per arm — sizable for an IBD pharmacoepidemiology question — but retrospective, so residual confounding, including differential weight loss and adherence, can't be excluded. The effect is modest (aHR 0.81 for IV steroids) and drives the composite endpoint largely on its own. The authors appropriately call for prospective validation before drawing mechanistic conclusions.

Plain-language abstract

In a large US database study, patients with inflammatory bowel disease taking tirzepatide had about a 19% lower risk of needing IV steroids over 18 months than matched patients on GLP-1 drugs, with no difference in surgeries, ER visits, or hospitalizations. Safety outcomes were similar between the two groups.