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Long-Term Safety Study of Elagolix in Combination With Estradiol/Norethindrone Acetate for the Management of Heavy Menstrual Bleeding Associated With Uterine Fibroids in Premenopausal Women

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT03271489
Recruitment Status : Active, not recruiting
First Posted : September 5, 2017
Last Update Posted : February 3, 2022
Information provided by (Responsible Party):

Brief Summary:
This is phase 3b study seeks to evaluate the safety of elagolix in combination with estradiol/norethindrone acetate for the management of heavy menstrual bleeding associated with uterine fibroids in premenopausal women. This study is double-blinded in the first year and an open-label for the next three years.

Condition or disease Intervention/treatment Phase
Heavy Menstrual Bleeding Uterine Fibroids Other: Elagolix Placebo Drug: E2/NETA Other: E2/NETA Placebo Drug: Elagolix Phase 3

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 500 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Phase 3b Study to Evaluate the Long-Term Safety of Elagolix in Combination With Estradiol/Norethindrone Acetate for the Management of Heavy Menstrual Bleeding Associated With Uterine Fibroids in Premenopausal Women
Actual Study Start Date : September 13, 2017
Estimated Primary Completion Date : August 18, 2023
Estimated Study Completion Date : January 24, 2025

Arm Intervention/treatment
Experimental: Elagolix plus estradiol (E2)/norethindrone acetate (NETA)
Elagolix plus estradiol (E2)/norethindrone acetate (NETA)
Drug: E2/NETA

Drug: Elagolix
Other Name: ABT-620 Elagolix sodium

Placebo Comparator: Placebo
Other: Elagolix Placebo

Other: E2/NETA Placebo

Primary Outcome Measures :
  1. Change in Bone Mineral Density (BMD) [ Time Frame: From Baseline through Month 48 ]
    Bone mineral density (BMD) is measured by dual X-ray absorptiometry (DXA).

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 50 Years   (Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Participant is a premenopausal female at the time of Screening.
  • Participant has a diagnosis of uterine fibroids documented by a Pelvic Ultrasound [Transabdominal ultrasound (TAU) and transvaginal ultrasound (TVU)].
  • Participant has Heavy Menstrual Bleeding (HMB) associated with uterine fibroids as evidenced by Menstrual Blood Loss (MBL) > 80 mL during each of two screening menses as measured by the alkaline hematin method.
  • Participant has negative urine and/or serum pregnancy test during Washout (if applicable) and/or Screening and just prior to first dose.
  • Participant has an adequate endometrial biopsy performed during Screening, the results of which show no clinical significant endometrial pathology.

Exclusion Criteria:

  • Participant has screening pelvic ultrasound or Saline Infusion Sonohysterography (SIS) results that show a clinically significant gynecological disorder.
  • Participant has history of osteoporosis or other metabolic bone disease.
  • Participant has clinically significant abnormalities in clinical chemistry, hematology, or urinalysis.
  • Participant has a history of major depression or post-traumatic stress disorder (PTSD) episode within 2 years of screening, OR a history of other major psychiatric disorder at any time (e.g., schizophrenia, bipolar disorder).
  • Participant is using any systemic corticosteroids for over 14 days within 3 months prior to Screening or is likely to require treatment with systemic corticosteroids during the course of the study. Over the counter and prescription topical, inhaled, intranasal or intra-articular injectable (for occasional use) corticosteroids are allowed.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03271489

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Sponsors and Collaborators
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Study Director: ABBVIE INC. AbbVie
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Responsible Party: AbbVie
ClinicalTrials.gov Identifier: NCT03271489    
Other Study ID Numbers: M16-283
First Posted: September 5, 2017    Key Record Dates
Last Update Posted: February 3, 2022
Last Verified: January 2022
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description: AbbVie is committed to responsible data sharing regarding the clinical trials we sponsor. This includes access to anonymized, individual and trial-level data (analysis data sets), as well as other information (e.g., protocols and clinical study reports), as long as the trials are not part of an ongoing or planned regulatory submission. This includes requests for clinical trial data for unlicensed products and indications.
Supporting Materials: Study Protocol
Statistical Analysis Plan (SAP)
Clinical Study Report (CSR)
Analytic Code
Time Frame: Data requests can be submitted at any time and the data will be accessible for 12 months, with possible extensions considered.
Access Criteria: Access to this clinical trial data can be requested by any qualified researchers who engage in rigorous, independent scientific research, and will be provided following review and approval of a research proposal and Statistical Analysis Plan (SAP) and execution of a Data Sharing Agreement (DSA). For more information on the process, or to submit a request, visit the following link.
URL: https://www.abbvie.com/our-science/clinical-trials/clinical-trials-data-and-information-sharing/data-and-information-sharing-with-qualified-researchers.html

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Product Manufactured in and Exported from the U.S.: No
Keywords provided by AbbVie:
Elagolix Sodium
Heavy Menstrual Bleeding (HMB)
Heavy Uterine Bleeding
Elagolix + Norethindrone Acetate
Elagolix + E2/NETA
Additional relevant MeSH terms:
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Pathologic Processes
Neoplasms, Muscle Tissue
Neoplasms, Connective and Soft Tissue
Neoplasms by Histologic Type
Neoplasms, Connective Tissue
Connective Tissue Diseases
Uterine Hemorrhage
Uterine Diseases
Menstruation Disturbances