Evaluating a dietary supplement for improving sperm DNA quality
Official title: Double-Blind Randomized Controlled Trial Evaluating the Efficacy of the Food Supplement Isitol® Versus Placebo on the Rate of Abnormal Sperm DNA Fragmentation
Run by Gynov · NCT04959864 · Data updated 2026-11-12
This study is testing a dietary supplement to see if it can improve sperm DNA quality in men aged 20 to 45 who are struggling with infertility.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 20 Years to 45 Years |
| Sex | Men only |
| Enrollment | 72 (estimated) |
| Sponsor | Gynov Industry-sponsored |
| Locations | 1 site (Paris) |
| Status | Recruiting |
| Started | July 7, 2021 |
| Main results expected | April 2026 |
| Study ends | July 2026 |
| Registry record updated | August 22, 2025 |
| Trial ID | NCT04959864 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates for this study are male patients aged 20 to 45 with a sperm DNA fragmentation rate of 30% or higher.
✕Probably not a fit
Patients with infertility due to infectious or genetic causes, or those requiring concurrent medical treatment, 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 efficacy of a dietary supplement containing Myo-inositol, N-Acetyl-Cystein, Zinc, and vitamins on reducing sperm DNA fragmentation in men experiencing infertility. The study focuses on male patients aged 20 to 45 who have a sperm DNA fragmentation rate of 30% or higher. Participants will be randomly assigned to receive either the supplement or a placebo, with the aim of assessing improvements in sperm quality and potential impacts on fertility. The trial seeks to address the growing concern of male infertility linked to oxidative stress and DNA integrity.
Why it matters
Potential benefit: If successful, this study could provide a novel dietary intervention to improve sperm quality and enhance fertility outcomes for men facing infertility issues.
How similar studies have gone: While the approach of using dietary supplements for improving sperm quality is gaining interest, this specific combination has not been widely tested in prior studies.
Who can join: the full rules
Show full inclusion / exclusion criteria
Selection Criteria: * Male patient volunteers aged 20 to 45 years (limits included); * Socially insured patient receiving benefits from the French Social Security's health branch Non-Selection Criteria: * Patients suffering from infertility of infectious or genetic origin, or from a pathology requiring concomitant medical treatment; * Consumption of dietary supplements during the previous 3 months and during the course of the study; * Smoking ≥ 5 cigarettes/day; * Alcoholism ≥ 10 drinks (alcohol standard)/week ; * Body Mass Index (BMI) not between \[19 and 29\] (inclusive). * Occupation at risk of exposure to carcinogenic, mutagenic and toxic agents for reproduction defined according to articles R.4412-2 2°, R.4412-3 and R.4412-60 of the French Labour Code; * Patient unable to give consent; * Minors and protected adults, vulnerable persons; * Patient participating in another clinical research study Inclusion Criteria: * Sperm DNA fragmentation rate ≥ 30 % Exclusion Criteria: * Positive semen culture
Where it's running
-
Laboratoire Drouot
Paris, France Recruiting
Study contacts
- Principal investigator: Nino-Guy Cassuto, PharmD — Laboratoire Drouot
- Study coordinator: Pierre-Yves Mousset, MD
- Email: py.mousset@gynov.com
- Phone: 616310400
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.