- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04372121
Extension to Study on Efficacy and Safety of Linzagolix for the Treatment of Endometriosis-associated Pain (EDELWEISS 5)
A Double-blind Randomized Extension Study to Assess the Long-term Efficacy and Safety of Linzagolix in Subjects With Endometriosis-associated Pain
Study Overview
Status
Conditions
Detailed Description
This is a prospective, randomized, double-blind study. Subjects who have completed the 6-month Treatment Period in 18-OBE2109-002 - Edelweiss 2 study (herein referred to as main study) will be invited to enter the present extension study. Month 6 visit of the main study is a decision point for Subjects to either end treatment and enter a post-treatment follow up (part of the main study), or to opt for a 6-month treatment extension. All subjects will receive once daily either linzagolix 75 mg alone (with ABT placebo) or 200 mg combined with ABT for 6 months. Subjects who received placebo during the main study will be randomized to either linzagolix 75 mg alone (with ABT placebo) or linzagolix 200 mg with ABT. Subjects who received active treatment during the main study will continue with the same treatment. Double-dummy design will be used in order to maintain the blinding of the study.
After end of treatment in the extension study (6-month treatment period: from Month 6 to Month 12), subjects will enter a post-treatment Follow-Up Period of 6 months with no investigational medicinal product (IMP) or - for subjects willing to continue treatment - a second extension study will be proposed.
Study Type
Enrollment (Actual)
Phase
- Phase 3
Contacts and Locations
Study Locations
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Alberta
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Red Deer, Alberta, Canada, T4N 6V7
- CARe Clinic / ID # 872
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Ponce, Puerto Rico, 00717
- Puerto Rico Medical Res Inc. / ID # 890
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Arkansas
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Little Rock, Arkansas, United States, 72212
- Applied Res Center of Ar / Id # 735
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California
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Norwalk, California, United States, 90650
- Futura Research, Inc. / ID # 781
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Colorado
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Greenwood Village, Colorado, United States, 80111
- Adv Womens Health Institute / ID # 761
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Lakewood, Colorado, United States, 80228
- Red Rocks OB/GYN / ID # 732
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Florida
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Boca Raton, Florida, United States, 33486
- Dr. David I. Lubetkin, LLC / ID # 703
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Miami, Florida, United States, 33135
- Coral Way Research / ID # 799
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Miami, Florida, United States, 33155
- La Salud Research Clinic, Inc. / ID # 824
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Orange City, Florida, United States, 32763
- A Premier Medical Research of Florida, LLC / ID # 752
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Orlando, Florida, United States, 32806
- Clinical Associates of Orlando, LLC / ID # 779
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Illinois
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Evergreen Park, Illinois, United States, 60805
- Providea Health Partners LLC / ID # 734
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Michigan
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Flint, Michigan, United States, 48532
- Onyx Clinical Research / ID # 793
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Saginaw, Michigan, United States, 48602
- Valley OBGYN / ID # 704
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Ohio
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Columbus, Ohio, United States, 43213
- ClinOhio Res Services, LLC / ID # 722
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Columbus, Ohio, United States, 43213
- Complete Healthcare for Women / ID # 801
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Franklin, Ohio, United States, 45005
- Hilltop OBGYN / ID # 711
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Tennessee
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Nashville, Tennessee, United States, 37203
- Clinical Research Associates Inc / ID # 802
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Texas
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Austin, Texas, United States, 78758
- Austin Area ObGyn PLLC / ID # 701
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Austin, Texas, United States, 78758
- OB/GYN North Austin / ID # 764
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Dallas, Texas, United States, 75231
- HCWC dba DiscoveryClinical Trials / ID # 771
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Fort Worth, Texas, United States, 76104
- Signature Gyn Services / ID # 726
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Katy, Texas, United States, 77450
- Medical Colleagues of Texas / ID # 819
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League City, Texas, United States, 77573
- Maximos OB/GYN
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Utah
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Draper, Utah, United States, 84020
- Physicians Research Options / ID # 766
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
The subject must have:
- completed the 6-month treatment in the main study
- agreed to continue to use only the analgesic rescue medication permitted by the protocol during the Treatment and Follow-up Periods
- agreed to continue to comply with the requirements of the study protocol for the duration of the extension study
Exclusion Criteria:
The subject will be excluded if she:
- is pregnant or breast feeding or is planning a pregnancy within the duration of the of the study (including the Follow-up Period)
- likely to require treatment during the study with any of the restricted medications
- has any other clinically significant gynecologic condition identified during the main study on transvaginal ultrasound (TVUS), on endometrial biopsy or at the manual breast examination, which might interfere with the study efficacy and safety objectives
- meets any of the main study discontinuation criteria
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Experimental: Linzagolix 75 mg
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For oral administration once daily
For oral administration once daily
For oral administration once daily
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Experimental: Linzagolix 200 mg + Add-back (E2 1 mg / NETA 0.5 mg)
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For oral administration once daily
For oral administration once daily
For oral administration once daily
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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Dysmenorrhea
Time Frame: Baseline to Month 12
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Change at Month 12 from baseline in the mean daily assessment of dysmenorrhea measured on a 0-3 Verbal Rating Scale (VRS) using an electronic diary.
The lower value represents a better outcome.
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Baseline to Month 12
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Non-menstrual pelvic pain
Time Frame: Baseline to Month 12
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Change at Month 12 from baseline in the mean daily assessment of non-menstrual pelvic pain measured on a 0-3 Verbal Rating Scale (VRS) using an electronic diary.
The lower value represents a better outcome.
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Baseline to Month 12
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Dysmenorrhea
Time Frame: Baseline to Month 12
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Change from baseline to Month 12 in dysmenorrhea measured on a 0-3 Verbal Rating Scale (VRS) using an electronic diary.
The lower value represents a better outcome.
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Baseline to Month 12
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Non-menstrual pelvic pain
Time Frame: Baseline to Month 12
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Change from baseline to Month 12 in non-menstrual pelvic pain measured on a 0-3 Verbal Rating Scale (VRS) using an electronic diary.
The lower value represents a better outcome.
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Baseline to Month 12
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Dyschezia
Time Frame: Baseline to Month 12
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Change from baseline to Month 12 in dyschezia measured on a 0-10 Numeric Rating Scale (NRS) using an electronic diary.
The lower value represents a better outcome.
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Baseline to Month 12
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Overall Pelvic Pain
Time Frame: Baseline to Month 12
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Change from baseline to Month 12 in overall pelvic pain measured on a 0-10 Numeric Rating Scale (NRS) using an electronic diary.
The lower value represents a better outcome.
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Baseline to Month 12
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Interference of pain with the ability to perform daily activities
Time Frame: Baseline to Month 12
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Change from baseline to Month 12 in the interference of pain with the ability to perform daily activities, measured using the pain dimension of the Endometriosis Health Profile-30 (EHP-30) using an electronic diary
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Baseline to Month 12
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Dyspareunia
Time Frame: Baseline to Month 12
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Change from baseline to Month 12 in dyspareunia measured on a 0-3 Verbal Rating Scale (VRS) using an electronic diary.
The lower value represents a better outcome.
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Baseline to Month 12
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No analgesic use for endometriosis associated pain
Time Frame: During the preceding 4-week period at each scheduled assessment
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Proportion of subjects reporting no analgesic use for endometriosis associated pain, during the preceding 4-week period at each scheduled assessment
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During the preceding 4-week period at each scheduled assessment
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No opiate use for endometriosis associated pain
Time Frame: During the preceding 4-week period at each scheduled assessment
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Proportion of subjects reporting no opiate use for endometriosis associated pain, during the preceding 4-week period at each scheduled assessment
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During the preceding 4-week period at each scheduled assessment
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Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 19-OBE2109-005
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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