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Clinical trialNCT04445025CompletedEarly phase 1Interventional

Comparison Elagolix vs Depot Leuprolide Prior to Frozen Embryo Transfers in Patients With Endometriosis

SponsorColorado Center for Reproductive MedicineEnrollment30EndometriosisInfertility
View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

Patients who have been previously surgically diagnosed with endometriosis and have embryos predicted to be euploid after in vitro fertilization will be divided into 2 groups via randomization. The test group will receive Elagolix for 60 days prior to starting frozen embryo transfer preparation. The control group will be given leuprolide acetate every 28 days x 2 prior to starting the frozen embryo transfer preparation. Comparative implantation rates between two groups of patients will be evaluated
clinicaltrials.gov ↗

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

1 registered facility, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States
  • Colorado Center for Reproductive Medicine

    Lone Tree, Colorado, United States

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

The drug and biological interventions registered on this study, normalized to their RxNorm ingredient where possible.

ElagolixLeuprolide →
Linked drugs open the directory filtered to KOLs working with them.clinicaltrials.gov ↗

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start
1 Sept 2020
Primary completion
30 Sept 2024
Completion
30 Dec 2024
Last update posted
20 Feb 2025
Registered enrollment
30
Registry id
NCT04445025
clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.