Original Investigation

GLP-1 Receptor Agonists Plus Progestins and Endometrial Cancer Risk in Nonmalignant Uterine Diseases

JAMA Network Open 10.1001/jamanetworkopen.2025.58205

February 10, 2026 at 11:00 AM EST

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Do GLP-1 receptor agonists enhance the effectiveness of progestins in reducing endometrial cancer (EC) risk among patients with nonmalignant uterine conditions?In this cohort study with 444 820 participants, combined GLP-1RA with progestin was associated with a significantly lower risk of developing EC compared with progestin alone, across subgroups stratified by body mass index, age, baseline risk level, and progestin route.These results suggest that adding GLP-1RAs to progestin therapy in women with benign uterine diseases or hyperplasia may be associated with reduced EC risk.

Corresponding Authors: Edward J. Tanner, MD, MBA, Professor of Gynecologic Oncology, Johns Hopkins University, 1800 Orleans St, Baltimore, MD 21287 (etanner4@jh.edu); James Cheng-Chung Wei, MD, PhD, Department of Allergy, Immunology jccwei@gmail.com).

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