Clinical trial Recruiting at 4 sites Phase 4 Interventional Ages 18 to 45 Women only

Comparing Implantable Gestrinone and Oral Dienogest for Endometriosis Treatment

Official title: Comparison Between the Effects of Implantable Gestrinone and Oral Dienogest in the Treatment of Endometriosis: Randomized Controlled Clinical Trial

Run by Bio Meds Pharmaceutica Ltda · NCT06543550 · Data updated 2026-11-12

This study is testing whether an implantable form of Gestrinone works better than the oral medication Dienogest for relieving endometriosis symptoms in women aged 18 to 45.

More Endometriosis trials

Quick facts

PhasePhase 4
Study typeInterventional
Ages18 Years to 45 Years
SexWomen only
Enrollment70 (estimated)
SponsorBio Meds Pharmaceutica Ltda
Industry-sponsored
Locations4 sites (Campina Grande, Paraíba and 3 other locations)
StatusRecruiting
StartedJuly 30, 2024
Main results expectedMarch 2027
Study endsMarch 2028
Registry record updatedOctober 20, 2026
Trial IDNCT06543550 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adult women aged 18 to 45 with a diagnosis of Grade 1 or 2 endometriosis seeking treatment.

Probably not a fit

Patients who are pregnant, breastfeeding, or have certain hormonal or medical conditions 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 effectiveness of implantable Gestrinone versus oral Dienogest in alleviating symptoms of endometriosis in adult women. A total of 70 pre-menopausal women aged 18 to 45 will be recruited from private medical clinics across four cities in Brazil. Participants will be randomly assigned to receive either the implantable treatment or the oral medication, with follow-up assessments scheduled at various intervals to monitor pain severity, bleeding levels, and overall quality of life. Data will be analyzed using validated statistical methods to determine the comparative efficacy of the two treatments.

Why it matters

Potential benefit: If successful, this study could provide a more effective treatment option for women suffering from endometriosis.

How similar studies have gone: Other studies have shown promise in using hormonal treatments for endometriosis, but the specific comparison of implantable Gestrinone to oral Dienogest is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adult female patients of menstrual age, pre-menopause (18 to 45 years old), who seek medical treatment to alleviate complaints related to endometriosis, who are not undergoing other therapies to treat them.
* Patients must have a diagnosis of Grade 1 or 2 endometriosis assessed by imaging tests (ultrasound with bowel preparation and/or MRI of the pelvis with bowel preparation)14, have a BMI of up to 25kg/m2, and weigh between 50 and 70kg.

Exclusion Criteria:

* Pregnant patients (supporting test must be presented)
* Breastfeeding women, using other hormonal contraceptive methods or copper or silver IUDs, who have polycystic ovaries, and/or hyperandrogenism.
* Patients using medications that may interfere with androgen metabolism within 4 weeks of screening or during the study.
* Patients with a history of liver disease, cardiovascular disease (myocardial infarction, unstable angina or heart failure), active hepatitis, liver neoplasia or renal failure
* Patient who are scheduled for surgical treatment during the study period.

Where it's running

  • Instituto Longevite Servicos Medicos LTDA
    Campina Grande, Paraíba, Brazil
    Recruiting
  • Nutrindo Ideiais Rio de Janeiro
    Rio de Janeiro, Rio de Janeiro, Brazil
    Recruiting
  • Jpml Clinica Medica LTDA
    São José dos Campos, São Paulo, Brazil
    Recruiting
  • Nutrindo Ideiais São Paulo
    São Paulo, São Paulo, Brazil
    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.
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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.