Study identifier: NCT04372121 Synced from ClinicalTrials.gov · August 05, 2026
● Terminated

Extension to Study on Efficacy and Safety of Linzagolix for the Treatment of Endometriosis-associated Pain

Condition: Endometriosis  ·  Sponsor: Kissei Pharmaceutical Co., Ltd.

PhasePhase 3
Planned participants30
Who can joinFemale, 18 Years to 50 Years
Healthy volunteersNo

About this study

The primary objective of this extension study is to assess the maintenance of efficacy of linzagolix administered orally once daily for up to an additional 6 months (for up to 12 months of treatment in total) in women who have already completed 6 months of linzagolix treatment at a dose of 75 mg alone or of 200 mg in combination with ABT (E2 1 mg / NETA 0.5 mg), in the management of moderate to severe endometriosis-associated pain (EAP) in women with surgically confirmed endometriosis.

This description comes directly from the study's public registry record.

Talk to the study team

No contact information is available for this study as per the public registry record.

Always discuss trial participation with your own doctor first.

Locations (25)

Applied Res Center of Ar / Id # 735Little Rock, Arkansas, United States
Futura Research, Inc. / ID # 781Norwalk, California, United States
Adv Womens Health Institute / ID # 761Greenwood Village, Colorado, United States
Red Rocks OB/GYN / ID # 732Lakewood, Colorado, United States
Dr. David I. Lubetkin, LLC / ID # 703Boca Raton, Florida, United States
Coral Way Research / ID # 799Miami, Florida, United States
La Salud Research Clinic, Inc. / ID # 824Miami, Florida, United States
A Premier Medical Research of Florida, LLC / ID # 752Orange City, Florida, United States
Clinical Associates of Orlando, LLC / ID # 779Orlando, Florida, United States
Providea Health Partners LLC / ID # 734Evergreen Park, Illinois, United States
Onyx Clinical Research / ID # 793Flint, Michigan, United States
Valley OBGYN / ID # 704Saginaw, Michigan, United States

+ 13 more locations — full list on the registry record.

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