Clinical trial No longer in our active list Phase 3 Interventional Ages 18 to 35 Women only

Combining ALA with Letrozole for treating infertility in women with PCOS

Official title: Effect of Alpha-Lipoic Acid Supplementation on Polycystic Ovary Syndrome Clinical Outcome in Infertile Females Treated With Letrozole

Run by Ain Shams University · NCT06418347 · Data updated 2026-05-14

This study is no longer in our active list. It may have stopped recruiting or finished. The details below are as of 2026-05-14 and are kept for reference. Check ClinicalTrials.gov for its current status, or see similar studies below.

This study is testing if adding Alpha lipoic acid (ALA) to letrozole can help women with PCOS who are struggling with infertility get pregnant more effectively.

More Polycystic Ovary Syndrome trials

Quick facts

PhasePhase 3
Study typeInterventional
Ages18 Years to 35 Years
SexWomen only
Enrollment150 (estimated)
SponsorAin Shams University
Academic / other
Locations2 sites (Cairo and 1 other locations)
Trial IDNCT06418347 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are females aged 18-35 diagnosed with PCOS and experiencing infertility for at least one year.

Probably not a fit

Patients with infertility due to factors other than PCOS or those with contraindications to pregnancy may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial investigates the effects of adding Alpha lipoic acid (ALA) to letrozole treatment in women with polycystic ovary syndrome (PCOS) who are experiencing infertility. A total of 150 participants will be randomly assigned to either a control group receiving letrozole alone or an intervention group receiving letrozole along with ALA supplements. The study will monitor the participants' ovulation rates and overall clinical outcomes through trans-vaginal ultrasound scans and follow standard PCOS care protocols. The goal is to determine if the addition of ALA enhances fertility outcomes compared to letrozole alone.

Why it matters

Potential benefit: If successful, this approach could improve fertility rates in women with PCOS.

How similar studies have gone: While the combination of ALA and letrozole is a novel approach, previous studies have shown that letrozole is effective for treating infertility in PCOS.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Female patient aged 18-35
* Willing to conceive
* PCOS, diagnosed according to the revised 2003 Rotterdam consensus criteria. " Oligo- or anovulation secondary to PCOS and at least one of the remaining two criteria: hyperandrogenism or polycystic ovarian morphology on ultrasound .
* Anovulation and/or infertility ≥ 1 year.
* At least one patent fallopian tube
* Normal uterine cavity
* Male partner with sperm concentration of at least 14 million/mL in at least one ejaculate.

Exclusion Criteria:

* Other causes for the infertility (male factor, tubal factor).
* Intake of hormonal or other drugs that can potentially influence the ovulation.
* Causes of anovulation or hyperandrogenism other than PCOS such as uncontrolled thyroid dysfunction or hyperprolactinemia.
* Contraindication to pregnancy
* Myo-inositol use \< 3 months prior to study enrollment
* Concomitant metformin use. Previous use is allowed with last use at least 6 weeks prior to randomization.

Where it's running

  • Ain shams university
    Cairo, Egypt
    Recruiting
  • Ain shams university
    Cairo, Egypt
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.