Study of the Safety and Contraceptive Efficacy of Relugolix Combination Therapy in Women With Uterine Fibroids or Endometriosis Who Are at Risk for Pregnancy
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.
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
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The purpose of this study is to assess the contraceptive efficacy of relugolix combination therapy.
Study identification
- NCT ID
- NCT04756037
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 1,164 participants
Conditions and interventions
Conditions
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 18, 2021 (Actual)
- Primary completion
- Feb 25, 2025 (Actual)
- Completion
- Mar 31, 2026 (Actual)
- Last update posted
- May 13, 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 May 13, 2026 · Synced Oct 31, 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 public registry record, listed eligibility criteria, and available contact information for NCT04756037 live on ClinicalTrials.gov.