CI

At a glance

ClinicalIndex Comparison Record
Phase 2Completed· 60 enrolled
Drug / intervention
Letrozole +1 moredrug
Likely dose
Letrozole 2.5 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/NCT07183787
NCT07183787Phase 2Completed

Comparison of Letrozole Versus Danazole for Pain Management of Female Presenting With Endometriosis

Sidra Salman·interventional·Posted Sep 19, 2025·Updated Sep 19, 2025

In Brief

A Phase 2 clinical trial evaluating Letrozole and danazol for Endometriosis. Completed, enrolled 60 participants across 1 site.

Detailed Summary

Background: Endometriosis is a chronic gynecological condition defined by the ectopic presence of endometrial glands and stroma outside the uterine cavity, most commonly diagnosed via laparoscopy. While its exact etiology remains uncertain, a positive family history is considered a significant risk factor. Danazol has historically demonstrated efficacy in alleviating endometriosis-related pain, while letrozole, primarily used in neoadjuvant settings, has recently emerged as a promising alternative. This study aimed to compare the mean reduction in pain scores between letrozole and danazol in women with laparoscopically confirmed endometriosis. Objective: To compare the efficacy of letrozole versus danazol in reducing pain scores among women diagnosed with endometriosis. Material \& Methods: Study Design: Randomized control trial Setting: Department of Obstetrics \& Gynaecology, Sharif Medical and Dental Hospital

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsEndometriosis
CountriesPakistan
Collaborators--

Timeline

Phase 2CompletedFinished
2020202120222023202420252026
First PostedSep 19, 2025
Enrollment StartApr 10, 2019
Primary CompletionOct 10, 2019
Study CompletionJul 31, 2025
TodayJul 2, 2026
Enrollment to primary: 6 monthsPosted 9 months ago

Interventions

Letrozoledrug

Letrozole 2.5 mg orally once daily for 12 weeks.

danazoldrug

Danazol 200 mg orally twice daily for 12 weeks.