ClinicalTrials.gov record
Active, not recruiting Phase 3 Interventional

Study of the Safety and Contraceptive Efficacy of Relugolix Combination Therapy in Women With Uterine Fibroids or Endometriosis Who Are at Risk for Pregnancy

ClinicalTrials.gov ID: NCT04756037

Public ClinicalTrials.gov record NCT04756037. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced May 9, 2026, 1:05 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 3, Single-Arm, Open-Label Study to Evaluate the Safety and Contraceptive Efficacy of Relugolix Combination Therapy in Women With Uterine Fibroids or Endometriosis Who Are 18 to 50 Years of Age and at Risk for Pregnancy

Study identification

NCT ID
NCT04756037
Recruitment status
Active, not recruiting
Study type
Interventional
Phase
Phase 3
Lead sponsor
Sumitomo Pharma Switzerland GmbH
Industry
Enrollment
1,020 participants

Conditions and interventions

Conditions

Interventions

  • Relugolix Combination Therapy Drug

Drug

Eligibility (public fields only)

Age range
18 Years to 50 Years
Sex
Female
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Mar 17, 2021
Primary completion
Feb 17, 2025
Completion
Jan 31, 2026
Last update posted
Jan 7, 2026

2021 – 2026

United States locations

U.S. sites
109
U.S. states
31
U.S. cities
92
Facility City State ZIP Site status
Mobile Mobile Alabama 36604
Chandler Chandler Arizona 85224
Mesa Mesa Arizona 85209
Peoria Peoria Arizona 85381
Phoenix Phoenix Arizona 85020
Burbank Burbank California 91506
Canoga Park Canoga Park California 91303
Encinitas Encinitas California 92024
Gardena Gardena California 90247
Lancaster Lancaster California 93534
Long Beach Long Beach California 90805
Long Beach Long Beach California 90806
Palo Alto Palo Alto California 94304
Sacramento Sacramento California 95817
San Diego San Diego California 92111
San Fernando San Fernando California 91340
Valley Village Valley Village California 91607
West Covina West Covina California 91790
Aurora Aurora Colorado 80045
Greenwood Village Greenwood Village Colorado 80111
Washington Washington D.C. District of Columbia 20011
Washington Washington D.C. District of Columbia 20036
Aventura Aventura Florida 33180
Boynton Beach Boynton Beach Florida 33435
Davie Davie Florida 33024
Deland DeLand Florida 32720
Hialeah Hialeah Florida 33016
Jacksonville Jacksonville Florida 32256
Kissimmee Kissimmee Florida 34741
Lake Worth Lake Worth Florida 33461
Loxahatchee Loxahatchee Groves Florida 33470
Margate Margate Florida 33063
Miami Miami Florida 33126
Miami Miami Florida 33140
Miami Miami Florida 33155
Miami Miami Florida 33173
New Port Richey New Port Richey Florida 34652
Orlando Orlando Florida 32808
Orlando Orlando Florida 32822
Panama City Panama City Florida 32405
Sarasota Sarasota Florida 34239
Atlanta Atlanta Georgia 30328
Atlanta Atlanta Georgia 30363
College Park College Park Georgia 30349
Columbus Columbus Georgia 31909
Norcross Norcross Georgia 30093
Sandy Springs Sandy Springs Georgia 30328
Savannah Savannah Georgia 31406
Smyrna Smyrna Georgia 30082
Meridian Meridian Idaho 83646
Nampa Nampa Idaho 83687
Chicago Chicago Illinois 60607
Chicago Chicago Illinois 60611
Brownsburg Brownsburg Indiana 46112
Mishawaka Mishawaka Indiana 46545
Shawnee Shawnee Kansas 66218
Covington Covington Louisiana 70433
Marrero Marrero Louisiana 70072
Metairie Metairie Louisiana 70001
New Orleans New Orleans Louisiana 70127
Shreveport Shreveport Louisiana 71118
Baltimore Baltimore Maryland 21237
Towson Towson Maryland 21204
Dearborn Heights Dearborn Heights Michigan 48127
Detroit Detroit Michigan 48201
Saginaw Saginaw Michigan 48602
Jackson Jackson Mississippi 39202
Saint Louis St Louis Missouri 63108
Saint Louis St Louis Missouri 63141
Las Vegas Las Vegas Nevada 89106
Las Vegas Las Vegas Nevada 89109
North Las Vegas North Las Vegas Nevada 89030
Cherry Hill Cherry Hill New Jersey 08034
Albuquerque Albuquerque New Mexico 87109
New York New York New York 10029
Durham Durham North Carolina 27713
New Bern New Bern North Carolina 28562
Raleigh Raleigh North Carolina 27607
Raleigh Raleigh North Carolina 27612
Winston-Salem Winston-Salem North Carolina 27103
Minot Minot North Dakota 58701
Columbus Columbus Ohio 43210
Columbus Columbus Ohio 43213
Columbus Columbus Ohio 43231
Fairfield Fairfield Ohio 45014
Franklin Franklin Ohio 45005
Portland Portland Oregon 97239
Philadelphia Philadelphia Pennsylvania 19104
Philadelphia Philadelphia Pennsylvania 19114
Myrtle Beach Myrtle Beach South Carolina 29572
Summerville Summerville South Carolina 29485
Chattanooga Chattanooga Tennessee 37404
Memphis Memphis Tennessee 38120
Austin Austin Texas 78705
Beaumont Beaumont Texas 77702
Dallas Dallas Texas 75230
Fort Worth Fort Worth Texas 76104
Houston Houston Texas 77021
Houston Houston Texas 77024
Houston Houston Texas 77054
League City League City Texas 77573
Pearland Pearland Texas 77584
San Antonio San Antonio Texas 78233
San Antonio San Antonio Texas 78258
Salt Lake City Salt Lake City Utah 84107
Annandale Annandale Virginia 22003
Norfolk Norfolk Virginia 23502
Bellevue Bellevue Washington 98007
Seattle Seattle Washington 98105

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 3 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04756037, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jan 7, 2026 · Synced May 9, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete protocol, eligibility criteria, and contact information for NCT04756037 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →