Benefits of Incretin Therapy on Ovarian Function: A Scientific Literature Review
Abstract
Incretin-based therapies, particularly glucagon-like peptide-1 receptor agonists (GLP-1 RAs), have emerged as potentially promising therapeutic agents for improving ovarian function, especially in women with polycystic ovary syndrome (PCOS) and obesity-related reproductive dysfunction. This comprehensive review synthesizes evidence from 30 highly relevant studies examining the mechanisms of action, clinical outcomes, and safety profile of incretin therapies on ovarian function. The evidence suggests that GLP-1 RAs may exert beneficial effects through multiple molecular pathways, including FOXO1 signaling, modulation of steroidogenesis, and enhancement of insulin sensitivity, although most mechanistic data derive from animal models and in vitro studies without validation in human ovarian tissue. Clinical outcomes from randomized controlled trials and meta-analyses show improvements in menstrual regularity, hormonal profiles, and spontaneous conception rates, though evidence certainty is limited by small sample sizes, short duration, high heterogeneity, and restriction to overweight/obese populations. While preliminary safety data regarding inadvertent early pregnancy exposure are reassuring, animal studies suggest potential dose-dependent risks that warrant careful consideration. Importantly, GLP-1 RAs are not currently approved or guideline-recommended for fertility restoration, and substantial uncertainty remains regarding long-term reproductive safety, optimal patient…
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