Efficacy and Safety of Linzagolix for the Treatment of Endometriosis-associated Pain.
Public ClinicalTrials.gov record NCT03992846. 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 Multicenter, Randomized, Double-blind, Placebo-controlled, Clinical Study to Assess the Efficacy and Safety of Linzagolix in Subjects With Moderate to Severe Endometriosis-associated Pain.
Study identification
- NCT ID
- NCT03992846
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Lead sponsor
- Kissei Pharmaceutical Co., Ltd.
- Industry
- Enrollment
- 486 participants
Conditions and interventions
Conditions
Interventions
- 200 mg linzagolix tablet Drug
- 75 mg linzagolix tablet Drug
- Add-back capsule (E2 1 mg / NETA 0.5 mg) Drug
- Placebo capsule to match Add-back capsule Drug
- Placebo tablet to match 200 mg linzagolix tablet Drug
- Placebo tablet to match 75 mg linzagolix tablet Drug
Drug
Eligibility (public fields only)
- Age range
- 18 Years to 49 Years
- Sex
- Female
- Healthy volunteers
- Not listed
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jun 12, 2019
- Primary completion
- Oct 17, 2021
- Completion
- Mar 31, 2022
- Last update posted
- Apr 1, 2025
2019 – 2022
United States locations
- U.S. sites
- 22
- U.S. states
- 14
- U.S. cities
- 22
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Achieve Clinical Research/ ID # 601 | Birmingham | Alabama | 35218 | — |
| Choice Research, LLC/ ID # 609 | Dothan | Alabama | 36303 | — |
| Southeast Clinical Research/ ID # 618 | Chiefland | Florida | 32626 | — |
| Universal Axon - Homestead, LLC/ ID # 620 | Homestead | Florida | 33030 | — |
| Multi-Specialty Research Associates, Inc./ ID # 625 | Lake City | Florida | 32055 | — |
| Wellington Anti-Aging, LLC/ ID # 613 | Loxahatchee Groves | Florida | 33470 | — |
| Adventura Clinical Research/ ID # 616 | Miramar | Florida | 33012 | — |
| Stedman Clinical Trials/ ID # 612 | Tampa | Florida | 33613 | — |
| Advanced Specialty Research/ ID # 610 | Nampa | Idaho | 83687 | — |
| Affinity Clinical Research Institute/ ID # 622 | Oak Brook | Illinois | 60523 | — |
| Women's & Family Care, LLC dba GTC Research/ ID # 608 | Shawnee Mission | Kansas | 66218 | — |
| Southern Clinical Research / ID # 611 | Metairie | Louisiana | 70001 | — |
| Quad Clinical Research LLC/ ID # 615 | St Louis | Missouri | 63109 | — |
| The Center for Women's Health & Wellnes/ ID # 603 | Lawrenceville | New Jersey | 08648 | — |
| PMG Research of Wilmington/ ID # 614 | Wilmington | North Carolina | 28412 | — |
| UWCR - Lyndhurst Clinical Researc/ ID# 605 | Winston-Salem | North Carolina | 27103 | — |
| Obstetrics & Gynecology Associates, Inc./ ID# 606 | Fairfield | Ohio | 45014 | — |
| Invocare Medical Research & Healthcare Center/ ID # 607 | West Columbia | South Carolina | 29169 | — |
| Chattanooga Medical Research LLC/ ID# 602 | Chattanooga | Tennessee | 37404 | — |
| Next Innovative Clinical Research/ ID # 617 | Houston | Texas | 77021 | — |
| Storks Research, LLC/ ID # 623 | Sugar Land | Texas | 77479 | — |
| Tanner Clinic/ ID # 624 | Layton | Utah | 84041 | — |
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 49 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03992846, 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 Apr 1, 2025 · Synced Apr 22, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03992846 live on ClinicalTrials.gov.