Clinical trial No longer in our active list Interventional Ages 18 to 75

Plant-based supplement for improving psychological well-being

Official title: Efficacy Study in Phytotherapy of an Association of Plants in the Improvement of Psychological Well-being

Run by Larena SAS · NCT05199545 · 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 whether a plant-based supplement can help people with moderate depression feel better compared to a placebo.

Quick facts

Study typeInterventional
Ages18 Years to 75 Years
SexAll
Enrollment126 (estimated)
SponsorLarena SAS
Industry-sponsored
Locations1 site (Louvain-la-Neuve)
Trial IDNCT05199545 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are French-speaking adults aged 18 to 75 with a recent moderate depressive episode not currently treated with antidepressants.

Probably not a fit

Patients with other mental health disorders, those at risk of suicide, or those who have been depressed for more than six months 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 study aims to evaluate the effectiveness of a dietary supplement made from plant extracts in improving psychological well-being in patients experiencing a moderate depressive episode. It is a randomized, double-blind, placebo-controlled trial where participants will be assigned to receive either the supplement or a placebo for six weeks. Patients will be monitored through three visits to assess changes in depressive symptoms using standardized scales. The goal is to demonstrate that the plant-based treatment is superior to placebo in alleviating moderate depressive symptoms.

Why it matters

Potential benefit: If successful, this study could provide a natural alternative for improving psychological well-being in patients with moderate depression.

How similar studies have gone: While there is ongoing interest in phytotherapy for mental health, this specific approach is relatively novel and has not been extensively tested in similar studies.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age ≥ 18 and ≤ 75 years old ;
* Patient with a moderate depressive episode (F32.1 by ICD10 definition) ;
* Score HAM-D ≥ 16 and ≤ 23 at inclusion, corresponding to moderate symptoms ;
* Recent depression (less than 6 months), not managed by antidepressant or psychotherapeutic treatment ;
* Depressive disorder not requiring, in the opinion of the investigator, initiation of antidepressant drug therapy ;
* Patient able to understand the study information, read the information leaflet, and willing to sign the consent form ;
* French speaking patient.

Exclusion Criteria:

* Patient with a depressive disorder of another nature or any other mental illness (schizophrenia, bipolarity, alcohol or drug addiction, etc.);
* Patient at risk of suicide (noted by the investigator, or HAM-D item 3 score \> 2) or having attempted suicide in the last 5 years;
* Depression felt for more than 6 months ;
* Patient under psychotropic treatment (current or in the month preceding inclusion) (neuroleptic, anxiolytic, hypnotic);
* Patient on beta-blocker therapy ;
* Patient on dialysis ;
* Patient using products containing piperine or St. John's wort, or having a known effect on mood in the last 30 days ;
* Woman who is pregnant or breastfeeding, or has plans to become pregnant in the next 8 weeks ;
* Patient with an allergy or contraindication to one of the components of the product under study (rhodiola or saffron) ;
* Patient unable to understand information related to the study (mental or linguistic disability) ;
* Patient participating or having participated in the previous 3 months in another clinical trial ;

Where it's running

  • CICN - Université Catholique de Louvain
    Louvain-la-Neuve, Belgium
    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.