CI

At a glance

ClinicalIndex Comparison Record
Phase 2Completed· 100 enrolled / 100 target
Drug / intervention
Gestrinone +1 moredrug
Likely dose
85 mgfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT05570786
NCT05570786Phase 2CompletedHigh Momentum (2.5/mo)Completion was 13mo ago

A Phase II, Randomized, Placebo-controlled, Double-blind, Multicenter Study to Investigate the Safety and Exploratory Efficacy of a Subdermal Implant-bioabsorbable Gestrinone Pellet for Pelvic Pain Secondary to Endometriosis Treatment

Science Valley Research Institute·interventional·Posted Oct 7, 2022·Updated Jun 3, 2026

In Brief

A Phase 2 clinical trial evaluating Gestrinone and Placebo for Endometriosis and Pelvic Pain. Completed, enrolled 100 participants across 1 site.

Signals

Enrolling ahead of pace

Detailed Summary

Pelvic pain is considered a symptom of multifactorial origin among which Endometriosis is the main gynecological cause affecting 5-10% of worldwide women in their reproductive years, negatively impacting their quality of life and work efficiency. Treatment of endometriosis-associated pelvic pain is challenging and there are surgical and/or hormonal treatments available with variable endpoints. Gestrinone is a synthetic derivative of 19-nortestosterone with anti-estrogen, anti-progestin, androgenic, and weak estrogen-like action. Previous studies show that the oral treatment with Gestrinone induced an improvement in symptoms associated with endometriosis but with adverse events such as androgenization and uterine bleeding. Parenteral administration of Gestrinone could be effective to treat pain symptoms secondary to endometriosis and minimize these adverse events. This study evaluates the safety and tolerability of subdermal implant-bioabsorbable gestrinone pellet use in women with pelvic pain secondary to endometriosis after 6 months of Gestrinone pellet insertion versus placebo pellet. PK profile of the gestrinone pellet will be monitored.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesBrazil
CollaboratorsBiós Farmacêutica

Timeline

Phase 2CompletedFinished
2023202420252026
First PostedOct 7, 2022
Enrollment StartFeb 13, 2023
Primary CompletionMay 21, 2025
Study CompletionOct 31, 2025
TodayJul 2, 2026
Enrollment to primary: 2.3 yearsPosted 3.7 years ago

Arms & Interventions

Gestrinoneexperimental

Subdermal implant-bioabsorbable gestrinone pellet (85 mg) All patients will undergo insertion of an intrauterine system of levonorgestrel release (Kyleena®) as a contraceptive method

Drug: Gestrinone
Placeboplacebo_comparator

Subdermal implant-bioabsorbable placebo pellet (cholesterol) All patients will undergo insertion of an intrauterine system of levonorgestrel release (Kyleena®) as a contraceptive method

Drug: Placebo

Interventions

Gestrinonedrug

The intradermal gestrinone/placebo pellet will be inserted on the same day as the levonorgestrel intrauterine hormonal device (Kyleena®)

Placebodrug

Subdermal implant-bioabsorbable placebo pellet (cholesterol)