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Study details
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A Phase 3B Trial to Evaluate Bone Mineral Density With Long-Term Use of Relugolix Combination Tablet in Women With Uterine Fibroids or Endometriosis

Sumitomo Pharma Switzerland GmbH
NCT IDNCT05862272ClinicalTrials.gov data as of Apr 2026
Phase

Phase 3

Target enrollment

1,000

Study length

about 7.1 years

Ages

18–50

Sex

Female only

Locations

120 sites in AL, AZ, CA +24

What this study is about

Researchers are testing the effect of relugolix combination tablets on bone mineral density over a long period (up to 4 years) in women with uterine fibroids or endometriosis. The trial will last for approximately 2604 days and involve around 1000 participants.

Simplified from trial records by PatientMatch.

What you may be asked to do

  • 1.Take Relugolix Combination Tablet

Participation Burden

What's physically and logistically required of participants.

Logistics & Travel
In-person visits

Requires travel to a study site

Physical Intervention
OralOral

How treatment is administered

Treatment Assignment
All receive treatment

Everyone gets the investigational treatment.

Extracted study details

Pulled from the trial record to show what is being tested and what the study is measuring.

Drug classes

relugolix

Drug routes

oral (Oral Tablet), oral

Endpoints

Primary: Percent change from baseline in BMD (bone mineral density) at Month 48 on-treatment at lumbar spine (L1-L4) in women with uterine fibroids., Percent change from baseline in BMD at Month 48 on-treatment at lumbar spine (L1-L4) in women with endometriosis.

Secondary: Incidence of treatment-emergent serious adverse events, and non-serious adverse events leading to treatment discontinuation or withdrawal from the study during the 48 months of treatment., Percent change from baseline in BMD at Month 48 on-treatment at lumbar spine (L1-L4) in the overall study population., Percent change from baseline in BMD at Month 48 on-treatment at total hip and femoral neck in the overall study population., Percent change from baseline in BMD at Month 48 on-treatment at total hip and femoral neck in women with endometriosis., Percent change from baseline in BMD at Month 48 on-treatment at total hip and femoral neck in women with uterine fibroids., Percent change from baseline in BMD at Month 6, 12, 18, 24, 30, 36, and 42 on-treatment at the lumbar spine (L1-L4), total hip, and femoral neck in the overall study population., Percent change from baseline in BMD at Month 6, 12, 18, 24, 30, 36, and 42 on-treatment at the lumbar spine (L1-L4), total hip, and femoral neck in women with endometriosis., Percent change from baseline in BMD at Month 6, 12, 18, 24, 30, 36, and 42 on-treatment at the lumbar spine (L1-L4), total hip, and femoral neck in women with uterine fibroids.

Body systems

Reproductive Health