Clinical trial Recruiting at 1 site Phase 4 Interventional Ages 25 to 60 Men only

Efficacy and safety of Tribulus terrestris products for men with low sperm count

Official title: Efficacy and Safety Study of Products Based on Tribulus Terrestris, L. in Men With Oligospermia

Run by Herbarium Laboratorio Botanico Ltda · NCT06260007 · Data updated 2026-11-12

This study tests if a natural supplement from Tribulus terrestris can help men with low sperm count improve their condition safely.

More Oligospermia trials

Quick facts

PhasePhase 4
Study typeInterventional
Ages25 Years to 60 Years
SexMen only
Enrollment204 (estimated)
SponsorHerbarium Laboratorio Botanico Ltda
Industry-sponsored
Locations1 site (Valinhos, São Paulo)
StatusRecruiting
StartedJuly 12, 2024
Main results expectedFebruary 2026
Study endsAugust 17, 2026
Registry record updatedApril 6, 2025
Trial IDNCT06260007 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are men aged 25 to 60 who have been diagnosed with oligospermia and have a sexual partner.

Probably not a fit

Patients with severe oligospermia, anatomical changes, or those who have previously undergone treatment for oligospermia 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 evaluates the efficacy and safety of products derived from Tribulus terrestris in men diagnosed with oligospermia, a condition characterized by low sperm count. Participants will receive either the investigational product or a placebo, and the study aims to determine if the benefits of the treatment outweigh any associated risks. The study is designed to carefully monitor participant safety and health throughout the intervention period.

Why it matters

Potential benefit: If successful, this study could provide a new treatment option for men with oligospermia, potentially improving fertility outcomes.

How similar studies have gone: While the use of Tribulus terrestris has been explored in other contexts, this specific approach in treating oligospermia is relatively novel and has not been extensively tested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. \- Male;
2. \- Ages 25 and 60;
3. \- Diagnosis of oligospermia;
4. \- With sexual partner;
5. \- Indication of drug treatment with steroid hormones, precursors or analogues.

Exclusion Criteria:

1. \- Severe oligospermia
2. \- Anatomical change
3. \- Previous treatment for oligospermia or concomitant treatment with steroid, anabolic, hormonal precursors such as testosterone or analogues;
4. \- BMI 35;
5. \- Participant who presents liver enzyme and creatinine values above the upper limit of normality;
6. \- History of testicular cancer, or prostate cancer or any other condition that carries risks in this case increased testosterone;
7. \- Hypersensitivity to any ingredient present in the formulation;
8. \- Any criteria or clinical history that, in the investigator's opinion, could compromise the well-being and participant safety;
9. \- Proven infertility of the partner;
10. \- History of genetic disorder;
11. \- History of psychiatric disorder, serious or decompensated illness or any situation that, Investigator's discretion, puts the participant's safety at risk;
12. \- Active cancer at the discretion of the Investigator;
13. \- Participants with pregnant and breastfeeding partners;
14. \- Cycling and horse riding more than 3 hours per week;
15. \- Alcoholism characterized by the inability to control alcohol consumption according to WHO "drinker excessive, whose dependence on alcohol is accompanied by mental, health and physics, relationships with others and social and economic behavior". Source: https://www.cancer.gov/publications/dictionaries/cancerterms/def/alcoholism;
16. \- Smoking greater than half a pack per day or equivalent.

Where it's running

  • Azidus Brasil Pesquisa Científica E Desenvolvimento Ltda
    Valinhos, São Paulo, Brazil
    Recruiting

Similar studies

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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.