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A Phase 3 Study to Confirm the Efficacy and Safety of Linzagolix to Treat Endometriosis-associated Pain

NCT03986944 · Status: TERMINATED · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 85

Last updated 2025-04-02

Study results available
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Summary

The primary objective of this study is to demonstrate the efficacy and safety of linzagolix administered orally once daily for 3 months at a dose of 75 mg alone or of 200 mg in combination with add-back hormone replacement therapy (ABT: estradiol (E2) 1 mg / norethisterone acetate (NETA) 0.5 mg) versus placebo, in the management of moderate to severe endometriosis-associated pain (EAP).

Conditions

  • Endometriosis

Interventions

DRUG

75 mg linzagolix tablet

For oral administration once daily

DRUG

200 mg linzagolix tablet

For oral administration once daily

DRUG

Add-back capsule (E2 1 mg / NETA 0.5 mg)

For oral administration once daily

DRUG

Placebo tablet to match 75 mg linzagolix tablet

For oral administration once daily

DRUG

Placebo tablet to match 200 mg linzagolix tablet

For oral administration once daily

DRUG

Placebo capsule to match Add-back capsule

For oral administration once daily

Sponsors & Collaborators

  • Kissei Pharmaceutical Co., Ltd.

    lead INDUSTRY

Principal Investigators

  • Lecomte · ObsEva SA

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
49 Years
Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2019-05-23
Primary Completion
2021-01-06
Completion
2021-02-16
FDA Drug
Yes

Countries

  • United States
  • Canada
  • Puerto Rico

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03986944 on ClinicalTrials.gov