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Weight loss outcomes with tirzepatide in women with and without self-reported polycystic ovary syndrome

Clift AK, Reisel D, Johnson H, Sattar N, Huang DR

Journal of the Endocrine Society, 2026

397 participants · 1 citation

Abstract

Context: Weight management is key to managing polycystic ovary syndrome (PCOS) and overweight/obesity but is challenging for many. Evidence regarding tirzepatide's efficacy in women with polycystic ovary syndrome is limited.

Objectives: To quantify the effectiveness of tirzepatide for weight loss in women with (self-reported) polycystic ovary syndrome and overweight/obesity compared with women not living with PCOS and to explore associations between engagement with nonpharmacological digital adjuncts and weight loss.

Methods: Retrospective open-cohort study in a digital weight management service in the United Kingdom. All women (aged 18+ years) with overweight/obesity prescribed tirzepatide for weight management between February 2024 and January 2025 were included. Percentage weight change from baseline was calculated in women reaching specific follow-up time points, stratified by PCOS status. Kaplan-Meier methods estimated cumulative probabilities of attaining total body weight loss thresholds.

Results: The cohort comprised 54 114 women of whom 4241 (7.84%) women had PCOS. At 10 months, the mean weight change in women with PCOS (n = 40) was -19.40% (95% confidence interval [CI], -22.38% to -16.42%); this was not significantly different from women without PCOS (n = 397; mean weight change, -18.74%; 95% CI, -19.67% to -17.81%). A total of 57.66% of women with PCOS lost ≥20% total body weight (95% CI, 47.44% to 68.29%) by 10 months. In women living with PCOS, digitally engaged…

How strong is the evidence?

Evidence Hub reads this as a cohort study, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 397 participants or records.

How the five levels of evidence work. The level is assigned automatically from the abstract and can be wrong, so check the paper.

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