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Study identifier: NCT07159880 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Letrozole Extended vs Traditional Therapy for Ovulation Induction in Women With PCOS (PROLEx-PCOS)

Condition: PCOS (Polycystic Ovary Syndrome) · Infertility · Anovulation  ·  Sponsor: GABRIEL MONTEIRO PINHEIRO

PhaseNA
Planned participants20
Who can joinFemale, 18 Years to 40 Years
Healthy volunteersYes

About this study

This randomized clinical trial aims to compare the efficacy and safety of extended letrozole therapy (5 mg/day for 10 days) versus standard letrozole therapy (5 mg/day for 5 days) for ovulation induction in women with polycystic ovary syndrome (PCOS). A total of 84 women aged 18-40 years will be randomized into two groups. Ovulation will be monitored by transvaginal ultrasound and confirmed with urinary LH testing and/or corpus luteum presence. The primary outcome is ovulation rate, while secondary outcomes include number and size of mature follicles, clinical pregnancy rate, multiple pregnancy rate, miscarriage rate, number of cycles until pregnancy, and incidence of ovarian hyperstimulation syndrome (OHSS).

This description comes directly from the study's public registry record.

Talk to the study team

Katherine Ann R Miller, Medical student  ·  +55(11) 964098358  ·  katherinereimao000@gmail.com

Gabriel M Pinheiro, MD  ·  +55(11) 97130-7240  ·  Drg.monteiro@hotmail.com

Always discuss trial participation with your own doctor first.

Locations (1)

Health Complex Dr Wladimir ArrudaSão Paulo, São Paulo, BrazilRecruiting

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Source record: clinicaltrials.gov/study/NCT07159880