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Study identifier: NCT06934785 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

LE + CC vs. LE for Ovulation Induction

Condition: Letrozole · Clomiphene Citrate · Ovulation Disorder  ·  Sponsor: Mỹ Đức Hospital

PhaseNA
Planned participants600
Who can joinFemale, 18 Years to 40 Years
Healthy volunteersNo

About this study

This randomized controlled trial (RCT) aims to evaluate whether, in infertile women with WHO II/IV ovulatory disorders, a combination of letrozole (LE) and clomiphene citrate (CC) compared to LE alone, result in higher live birth rates. The study is designed as an open-label, multicenter RCT across six fertility clinics in Vietnam. Participants will be randomized into two groups: (1) LE + CC , (2) LE alone. The primary outcome measure is the live birth rate after one treatment cycle. Based on prior data, the live birth rate for IUI in letrozole cycles is estimated at 12%. To detect a 10% increase in live birth rates with CC, 436 couples are needed (α = 0.05, power = 80%). Additionally, the live birth rate after IUI with LE-induced ovulation is approximately 18.7% (Diamond et al., 2015). To detect a 10% increase with CC, 560 couples are required (α = 0.05, power = 80%). Considering a 5% loss to follow-up and protocol deviations, the study plans to recruit 600 participants (150 per arm).

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

Talk to the study team

Van TT Tran, MD  ·  +84353345020  ·  bsvan.ttt@myduchospital.vn

Vinh Q Dang, MSc,MD  ·  vinh.dang@monash.edu

Always discuss trial participation with your own doctor first.

Locations (1)

My Duc HospitalHo Chi Minh City, Ho Chi Minh City, VietnamRecruiting

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Source record: clinicaltrials.gov/study/NCT06934785