Clinical trial Recruiting at 1 site Interventional Ages 18 to 65

GynMDD Add-On to Supportive Psychotherapy in Mild to Moderate Depression

Official title: Multicenter Interventional Real-world Study Evaluating the Impact of the Dietary Supplement GynMDD Administered as an add-on to Supportive Psychotherapy in Patients With Mild to Moderate Depression.

Run by Fondation FondaMental · NCT07416747 · Data updated 2026-11-12

GynMDD is being tested as an add-on to supportive psychotherapy to see if it helps adults with mild to moderate depression feel better than psychotherapy with placebo.

More Depression trials

Quick facts

Study typeInterventional
Ages18 Years to 65 Years
SexAll
Enrollment168 (estimated)
SponsorFondation FondaMental
Academic / other
Locations1 site (Créteil)
StatusRecruiting
StartedMarch 24, 2026
Main results expectedNovember 2027
Study endsNovember 2027
Registry record updatedOctober 7, 2026
Trial IDNCT07416747 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 18–65 with mild to moderate depression (MADRS 15–34), seeking supportive psychotherapy, and affiliated with French national health insurance.

Probably not a fit

Individuals with high suicidal risk, current antidepressant treatment, MADRS >34, certain medical conditions contraindicating probiotics, or those not adhering to study procedures may not benefit.

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

What this trial studies

This randomized, add-on study tests whether the dietary supplement GynMDD can improve depressive symptoms when combined with standard supportive psychotherapy in adults aged 18–65. Participants receive weekly psychotherapy for 8 weeks and take either GynMDD or a placebo daily, alongside regular GP visits and weekly self-assessments. The primary outcome is change in MADRS score, with secondary goals including digestive well-being and gut microbiota changes. The trial compares two groups to determine if GynMDD provides additional benefit beyond psychotherapy alone. Safety screening excludes those with high suicidal risk, current antidepressant use, or conditions contraindicating probiotics.

Why it matters

Potential benefit: If successful, participants could experience greater reduction in depressive symptoms and potential gut-health improvements when using GynMDD in addition to psychotherapy.

How similar studies have gone: Previous studies of probiotic or gut-targeted add-ons show mixed results; this trial tests a specific regimen in combination with psychotherapy for mood symptoms.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adults aged 18 to 65 years, inclusive
* The main reason for consultation is a suspected depressive episode
* MADRS score between 15 and 34, indicating mild to moderate depression
* No suicidal risk, defined as a score of 0 on item 10 of the MADRS scale
* Body Mass Index (BMI) between 19 and 29 (inclusive)
* Signed informed consent, confirming that the participant understands the purpose and requirements of the study and agrees to comply with the procedures (including scheduled supportive psychotherapy sessions)
* Affiliation with the French national health insurance system or beneficiary of such coverage

Exclusion Criteria:

* History of severe psychiatric disorders or currently undergoing supportive psychotherapy
* Confirmed suicidal risk, defined as a score between 1 and 6 on MADRS item 10
* Current treatment with antidepressants (AD)
* MADRS score \> 34
* Conditions in which probiotic administration is not recommended (e.g., immunodeficiency, presence of a venous catheter)
* Allergy to any component of the placebo or the GynMDD dietary supplement
* Current consumption of probiotic-based dietary supplements
* Recent infectious episodes that may require antibiotic therapy
* Current treatment with anxiolytics
* Long-term chronic anti-inflammatory treatment
* Alcohol abuse, defined as a consumption of 10 standard drinks per week or more
* Use of illicit drugs or substances of abuse
* Inability to provide informed consent
* Participation in another clinical study within the past 12 months
* Pregnant or breastfeeding women
* Patients without health insurance
* Individuals under legal protection, guardianship, trusteeship, or any other protective measure

Where it's running

  • Hôpital Albert Chenevier 40 rue de Mesly
    Créteil, France
    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.