Probiotic treatment for women with fertility disorders

A Randomized, Double-blind, Placebo-controlled Study to Confirm the Positive Effect of Fertibiome® (Ligilactobacillus Salivarius PS11610) on the Female Genital Tract Microbiota of Couples or Women With Fertility Disorders.

NA · ProbiSearch SL · NCT06122207

This study is testing whether a probiotic called Fertibiome® can help improve fertility for women and couples dealing with fertility issues by restoring a healthy vaginal microbiome.

Quick facts

PhaseNA
Study typeInterventional
Enrollment120 (estimated)
Ages18 Years to 45 Years
SexAll
SponsorProbiSearch SL (industry)
Locations2 sites (Lisbon and 1 other locations)
Trial IDNCT06122207 on ClinicalTrials.gov

What this trial studies

This study investigates the impact of the probiotic product Fertibiome® on the vaginal microbiota of women and couples experiencing fertility disorders. It is a randomized, double-blind, placebo-controlled trial that aims to determine whether restoring a healthy vaginal microbiome can improve fertility outcomes. Participants will take the probiotic or a placebo for approximately six months, with the study focusing on those undergoing assisted reproductive treatments. The research is based on the premise that a healthy urogenital microbiome can enhance implantation rates and pregnancy success.

Who should consider this trial

Good fit: Ideal candidates include women aged 18 to 40 and men aged 18 to 55 who are experiencing fertility disorders and are undergoing or planning to undergo IVF treatment.

Not a fit: Patients who do not have a fertility diagnosis or those with significant chronic health issues or high BMI may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve fertility outcomes for women with dysbiosis and enhance the effectiveness of assisted reproductive treatments.

How similar studies have performed: Previous studies have indicated positive outcomes with probiotic treatments for restoring vaginal microbiota, suggesting potential success for this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Couples or women with ages between 18 and 45 for woman and between 18 and 55 for man (in case of couple participation).
* Couples or women with fertility disorders.
* Couples or women undergoing IVF treatment or willing to start it.
* Signature of the Informed Consent.

Exclusion Criteria:

* Women, not participating in the study with a couple, who have not undergone at least 4 cycles of artificial insemination with donor's sperm (AID) or 1 cycle of IVF without achieving evolutionary pregnancy.
* Women with Body Mass Index (BMI) ≥ 30.
* Couples where the woman has not infertility diagnosis while the man has any of the following characteristics:

  * Azoospermia
  * Sperm motility (A + B) \< 25%.
  * Sperm morphology ≤ 2%.
  * Vas deferens obstruction.
* Couples or women with any of the following characteristics:

  * Chronic diseases that cause intestinal malabsortion.
  * Congenital or acquired immunodeficiency.
  * Current history or diagnosis of alcohol, tobacco, or drug abuse.
  * Uncertainty about the willingness or ability of participants to comply with the requirements of the protocol.
  * Under treatment with probiotics during the last week.

Where this trial is running

Lisbon and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Fertility Disorders

Last reviewed 2026-05-15 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.