Efficacy and Safety of OBE2109 in Subjects With Heavy Menstrual Bleeding Associated With Uterine Fibroids

NCT ID: NCT03070899

Last Updated: 2021-06-09

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

526 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-04-20

Study Completion Date

2021-04-12

Brief Summary

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The primary objective of this study is to demonstrate the superior efficacy versus placebo of OBE2109 alone and in combination with add-back therapy for the reduction of heavy menstrual bleeding associated with uterine fibroids in premenopausal women.

Detailed Description

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The study is a prospective, randomized, parallel group, double-blind, placebo-controlled phase 3 study investigating the efficacy and safety of OBE2109 alone and in combination with add-back therapy for the treatment of uterine fibroids.

Subjects will be randomized to one of 5 treatment groups in a 1:1:1:1:1 ratio.

Conditions

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Uterine Fibroids Heavy Menstrual Bleeding

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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OBE2109 dose 1 (100mg) + Placebo Add-back

Group Type EXPERIMENTAL

OBE2109

Intervention Type DRUG

OBE2109 100mg tablets for oral administration once daily

Placebo to match OBE2109

Intervention Type DRUG

Placebo to match OBE2109 100mg tablets for oral administration once daily

Placebo to match Add-back

Intervention Type DRUG

Placebo to match Add-back (E2 1 mg / NETA 0.5 mg) for oral administration once daily

OBE2109 dose 1 (100mg) + Add-back

Group Type EXPERIMENTAL

OBE2109

Intervention Type DRUG

OBE2109 100mg tablets for oral administration once daily

Placebo to match OBE2109

Intervention Type DRUG

Placebo to match OBE2109 100mg tablets for oral administration once daily

Add-back

Intervention Type DRUG

Add-back (E2 1 mg / NETA 0.5 mg) for oral administration once daily

OBE2109 dose 2 (200mg) + Placebo Add-back / OBE2109 dose 2 (200 mg) + Add-back

Group Type EXPERIMENTAL

OBE2109

Intervention Type DRUG

OBE2109 100mg tablets for oral administration once daily

Placebo to match Add-back

Intervention Type DRUG

Placebo to match Add-back (E2 1 mg / NETA 0.5 mg) for oral administration once daily

Add-back

Intervention Type DRUG

Add-back (E2 1 mg / NETA 0.5 mg) for oral administration once daily

OBE2109 dose 2 (200mg) + Add-back

Group Type EXPERIMENTAL

OBE2109

Intervention Type DRUG

OBE2109 100mg tablets for oral administration once daily

Add-back

Intervention Type DRUG

Add-back (E2 1 mg / NETA 0.5 mg) for oral administration once daily

Placebo + Placebo Add-back / OBE2109 dose 3 (200mg) + Add-back

At W24, half of the patients switched to active treatment, while half remained on Placebo; the switch was defined at randomization.

Group Type PLACEBO_COMPARATOR

OBE2109

Intervention Type DRUG

OBE2109 100mg tablets for oral administration once daily

Placebo to match OBE2109

Intervention Type DRUG

Placebo to match OBE2109 100mg tablets for oral administration once daily

Placebo to match Add-back

Intervention Type DRUG

Placebo to match Add-back (E2 1 mg / NETA 0.5 mg) for oral administration once daily

Add-back

Intervention Type DRUG

Add-back (E2 1 mg / NETA 0.5 mg) for oral administration once daily

Interventions

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OBE2109

OBE2109 100mg tablets for oral administration once daily

Intervention Type DRUG

Placebo to match OBE2109

Placebo to match OBE2109 100mg tablets for oral administration once daily

Intervention Type DRUG

Placebo to match Add-back

Placebo to match Add-back (E2 1 mg / NETA 0.5 mg) for oral administration once daily

Intervention Type DRUG

Add-back

Add-back (E2 1 mg / NETA 0.5 mg) for oral administration once daily

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Premenopausal woman at screening.
* Body Mass Index ≥ 18 kg/m2.
* Menstrual cycles ≥ 21 days and ≤ 40 days.
* Presence of uterine fibroids.
* Heavy menstrual blood loss for each of the 2 menstrual periods assessed at screening using the alkaline hematin method.

Exclusion Criteria

* The subject is pregnant or breast-feeding or is planning a pregnancy within the duration of the treatment period of the study.
* History of uterus surgery that would interfere with the study.
* The subject's condition is so severe that she will require surgery within 6 months regardless of the treatment provided.
* Undiagnosed abnormal uterine bleeding.
* Significant risk of osteoporosis or history of, or known osteoporosis or other metabolic bone disease.
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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ObsEva SA

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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ObsEva SA

Role: STUDY_DIRECTOR

Geneva

Locations

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Site reference ID 192

Birmingham, Alabama, United States

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Dothan, Alabama, United States

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Mobile, Alabama, United States

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Vestavia Hills, Alabama, United States

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Phoenix, Arizona, United States

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Tucson, Arizona, United States

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Arcadia, California, United States

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Cerritos, California, United States

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Escondido, California, United States

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Huntington Park, California, United States

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Los Angeles, California, United States

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Northridge, California, United States

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Panorama City, California, United States

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Sacramento, California, United States

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San Diego, California, United States

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Upland, California, United States

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Westminster, California, United States

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Denver, Colorado, United States

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Englewood, Colorado, United States

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Thornton, Colorado, United States

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New Haven, Connecticut, United States

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Washington D.C., District of Columbia, United States

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Boca Raton, Florida, United States

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Boca Raton, Florida, United States

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Clearwater, Florida, United States

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DeLand, Florida, United States

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Fort Lauderdale, Florida, United States

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Hialeah, Florida, United States

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Hialeah, Florida, United States

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Jacksonville, Florida, United States

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Loxahatchee Groves, Florida, United States

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Miami, Florida, United States

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Miami, Florida, United States

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Miami, Florida, United States

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Miami, Florida, United States

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Miami, Florida, United States

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Miami Lakes, Florida, United States

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Miami Lakes, Florida, United States

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Miami Springs, Florida, United States

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Miramar, Florida, United States

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New Port Richey, Florida, United States

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Orlando, Florida, United States

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Orlando, Florida, United States

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St. Petersburg, Florida, United States

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Tampa, Florida, United States

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Columbus, Georgia, United States

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Norcross, Georgia, United States

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Norcross, Georgia, United States

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Sandy Springs, Georgia, United States

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Idaho Falls, Idaho, United States

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Meridian, Idaho, United States

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Champaign, Illinois, United States

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Oak Brook, Illinois, United States

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Shawnee Mission, Kansas, United States

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Wichita, Kansas, United States

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Lake Charles, Louisiana, United States

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Marrero, Louisiana, United States

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Frederick, Maryland, United States

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Silver Spring, Maryland, United States

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Towson, Maryland, United States

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Fall River, Massachusetts, United States

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Fall River, Massachusetts, United States

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Bay City, Michigan, United States

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Detroit, Michigan, United States

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Saginaw, Michigan, United States

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Saginaw, Michigan, United States

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Missoula, Montana, United States

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Las Vegas, Nevada, United States

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Lawrenceville, New Jersey, United States

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Brooklyn, New York, United States

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New York, New York, United States

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Port Jefferson, New York, United States

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Staten Island, New York, United States

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Greensboro, North Carolina, United States

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Morehead City, North Carolina, United States

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Raleigh, North Carolina, United States

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Southern Pines, North Carolina, United States

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Winston-Salem, North Carolina, United States

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Cincinnati, Ohio, United States

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Cleveland, Ohio, United States

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Fairfield, Ohio, United States

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Franklin, Ohio, United States

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Bryn Mawr, Pennsylvania, United States

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Hershey, Pennsylvania, United States

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Indiana, Pennsylvania, United States

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Jenkintown, Pennsylvania, United States

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Pittsburgh, Pennsylvania, United States

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Smithfield, Pennsylvania, United States

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North Charleston, South Carolina, United States

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Spartanburg, South Carolina, United States

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Chattanooga, Tennessee, United States

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Knoxville, Tennessee, United States

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Memphis, Tennessee, United States

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Memphis, Tennessee, United States

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Austin, Texas, United States

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Austin, Texas, United States

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Beaumont, Texas, United States

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Corpus Christi, Texas, United States

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Dallas, Texas, United States

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Dallas, Texas, United States

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Dallas, Texas, United States

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Fort Worth, Texas, United States

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Fort Worth, Texas, United States

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Frisco, Texas, United States

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Houston, Texas, United States

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Houston, Texas, United States

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Houston, Texas, United States

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Houston, Texas, United States

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Pasadena, Texas, United States

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San Antonio, Texas, United States

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Webster, Texas, United States

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West Jordan, Utah, United States

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Norfolk, Virginia, United States

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Norfolk, Virginia, United States

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Richmond, Virginia, United States

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Site reference ID 237

Bellevue, Washington, United States

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Countries

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United States

References

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Donnez J, Petraglia F, Taylor H, Becker CM, Becker S, Herrera FC, Bestel E, Hori S, Dolmans MM. Linzagolix with and without hormonal add-back therapy for symptomatic uterine fibroids: PRIMROSE 1 & 2 long-term extension and withdrawal study. Fertil Steril. 2025 Oct;124(4):737-748. doi: 10.1016/j.fertnstert.2025.06.016. Epub 2025 Jun 19.

Reference Type DERIVED
PMID: 40543832 (View on PubMed)

Becker S, Dolmans MM, Herrera FC, Petraglia F, Renner SP, Ionescu-Ittu R, St-Pierre J, Boolell M, Bestel E, Hori S, Donnez J. Pain Reduction in Linzagolix-Treated Patients With Uterine Fibroids: A Secondary Mediation Analysis of the PRIMROSE 1 and 2 Phase 3 Trials. BJOG. 2025 Aug;132(9):1297-1306. doi: 10.1111/1471-0528.18190. Epub 2025 May 6.

Reference Type DERIVED
PMID: 40326221 (View on PubMed)

Donnez J, Taylor HS, Stewart EA, Bradley L, Marsh E, Archer D, Al-Hendy A, Petraglia F, Watts N, Gotteland JP, Bestel E, Terrill P, Loumaye E, Humberstone A, Garner E. Linzagolix with and without hormonal add-back therapy for the treatment of symptomatic uterine fibroids: two randomised, placebo-controlled, phase 3 trials. Lancet. 2022 Sep 17;400(10356):896-907. doi: 10.1016/S0140-6736(22)01475-1.

Reference Type DERIVED
PMID: 36116480 (View on PubMed)

Other Identifiers

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16-OBE2109-008

Identifier Type: -

Identifier Source: org_study_id

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