Incretin-Based Anti-obesity Medications in Polycystic Ovary Syndrome: The Evidence Map
Abstract
Polycystic ovary syndrome (PCOS) is a common, heterogeneous condition that is tightly linked to obesity, visceral adiposity and insulin resistance. Lifestyle intervention and off-label use of metformin provide only modest and unsustained weight loss, insufficient to reverse obesity-driven pathophysiology in most women with PCOS and obesity. Incretin-based anti-obesity medications, including glucagon-like peptide-1 receptor agonists (GLP-1RAs) and dual glucose-dependent insulinotropic polypeptide/glucagon-like peptide-1 receptor agonists (dual GIP/GLP-1RAs), offer a biologically plausible way to target adipose dysfunction, hyperinsulinemia and chronic inflammation that drive PCOS in a large subset of patients. In this narrative, product-segmented review, we map the evidence for liraglutide, semaglutide and tirzepatide in PCOS across mechanistic, clinical, and safety domains, and highlight key evidence gaps that limit current practice. Liraglutide has the densest PCOS-specific evidence, demonstrating reproducible weight loss across small and heterogeneous cohorts, reductions in visceral adiposity and hepatic fat, improved glycemia and inflammatory markers, and early signals for androgen and fertility benefits in selected phenotypes. Semaglutide data remain sparse but conceptually rich, demonstrating weight-loss efficacy and mechanistic insights, alongside preliminary signals of increased likelihood of natural conception. Tirzepatide currently has no PCOS-specific evidence and…
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