# Pre-IVF Treatment With a GnRH Antagonist in Women With Endometriosis

> **NCT04173169** · PHASE3 · COMPLETED · sponsor: **Yale University** · enrollment: 103 (actual)

## Conditions studied

- Infertility
- Endometriosis

## Interventions

- **DRUG:** Elagolix 200 MG
- **OTHER:** Placebo or SOC IVF

## Key facts

- **NCT ID:** NCT04173169
- **Lead sponsor:** Yale University
- **Sponsor class:** OTHER
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2022-03-15
- **Primary completion:** 2025-05-02
- **Final completion:** 2025-05-02
- **Target enrollment:** 103 (ACTUAL)
- **Last updated:** 2025-06-04

## Collaborators

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## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04173169

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04173169, "Pre-IVF Treatment With a GnRH Antagonist in Women With Endometriosis". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT04173169. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*