Study to Assess Enobosarm (GTx-024) in Postmenopausal Women With Stress Urinary Incontinence (ASTRID)

March 3, 2021 updated by: GTx

Double-Blind, Placebo-Controlled, Parallel Design, Phase 2 Study to Assess Clinical Activity and Safety of Enobosarm (GTx-024) in Postmenopausal Women With Stress Urinary Incontinence

GTx-024 is an orally bioavailable and tissue-selective nonsteroidal selective androgen receptor modulator (SARM) that has demonstrated androgenic and anabolic activity and is currently being evaluated as a potential treatment for stress urinary incontinence (SUI) in postmenopausal women. Urinary incontinence and pelvic floor disorders are major health problems for women, especially as they age. Pelvic floor muscle relaxation has been found to correlate with lower urinary tract symptoms including SUI. Muscles of the pelvic floor and lower urinary tract are crucial for supporting the pelvic organs and micturition; however, damage to the muscles or lack of hormonal stimulation are thought to contribute to pelvic organ prolapse and urinary incontinence. Although anabolic steroids may increase muscle mass and strength, lack of oral bioavailability and known potential risks have limited their use. Nonsteroidal SARMs have potential to achieve benefits of anabolic steroid therapy (improved muscle mass, cholesterol/triglyceride levels, glucose metabolism, and bone density) with fewer adverse effects, such as hirsutism and acne, in women. Both nonclinical and clinical data suggest that SARMs may provide a new therapeutic option for pelvic floor and lower urinary tract disorders, as both testosterone and its more potent metabolite, dihydrotestosterone, have anabolic effects on muscle.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
491

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Alabama
      • Homewood, Alabama, United States, 35209
        • Urology Center of Alabama
      • Mobile, Alabama, United States, 36608
        • Coastal Clinical Research Inc
    • Alaska
      • Anchorage, Alaska, United States, 99503
        • Alaska Clinical Research Center
    • Arizona
      • Phoenix, Arizona, United States, 85054
        • Mayo Clinic Arizona
      • Tucson, Arizona, United States, 85741
        • Urological Associates of Southern Arizona
    • California
      • San Diego, California, United States, 92111
        • Women's Healthcare Research Corporation
      • Whittier, California, United States, 90603
        • American Institute of Research
    • Colorado
      • Denver, Colorado, United States, 80220
        • Genitourinary Surgical Consultants
      • Englewood, Colorado, United States, 80113
        • Urology Associates Research
    • Connecticut
      • Farmington, Connecticut, United States, 06032
        • Women's Health Specialty Care
      • New London, Connecticut, United States, 06320
        • Coastal Connecticut Research, LLC
      • Norwalk, Connecticut, United States, 06859
        • Bladder Control Center of Connecticut
    • District of Columbia
      • Washington, District of Columbia, United States, 20036
        • James A Simon MD PC
    • Florida
      • Aventura, Florida, United States, 33180
        • South Florida Medical Research
      • Clearwater, Florida, United States, 33761
        • Tampa Bay Medical Research Inc
      • DeLand, Florida, United States, 32720
        • Midland Florida clinical Research Center LLC
      • Lauderdale Lakes, Florida, United States, 33319
        • Precision Clinical Research
      • Miami, Florida, United States, 33145
        • Lone Star Research Center
      • Miami, Florida, United States, 33186
        • Medical Research of Florida
      • Pompano Beach, Florida, United States, 33060
        • Clinical Research Center of Florida
    • Georgia
      • Sandy Springs, Georgia, United States, 30328
        • Mount Vernon Clinical Research LLC
    • Idaho
      • Idaho Falls, Idaho, United States, 83221
        • Clinical Research Prime
      • Meridian, Idaho, United States, 83642
        • Idaho Urologic Institue
    • Illinois
      • Oak Lawn, Illinois, United States, 60453
        • Women's Health Institution of Illinois
    • Indiana
      • Jeffersonville, Indiana, United States, 47130
        • First Urology PSC
    • Iowa
      • West Des Moines, Iowa, United States, 50266
        • Iowa Clinic
    • Louisiana
      • New Orleans, Louisiana, United States, 70115
        • DelRicht Clinical Research, LLC
      • Shreveport, Louisiana, United States, 71106
        • Regional Urology
    • Maryland
      • Hanover, Maryland, United States, 21076
        • Chesapeake Urology Associates PA
    • Massachusetts
      • Boston, Massachusetts, United States, 02131
        • Boston Clinical Trials
      • Watertown, Massachusetts, United States, 02472
        • Bay State Clinical Trials
    • Michigan
      • Kalamazoo, Michigan, United States, 49009
        • Beyer Research
      • Royal Oak, Michigan, United States, 48073
        • William Beaumont Hospital Urology Research
    • Nebraska
      • Lincoln, Nebraska, United States, 68510
        • Women's Clinic of Lincoln
    • Nevada
      • Las Vegas, Nevada, United States, 89144
        • Sheldon J Freedman MD Ltd
    • New Jersey
      • Edison, New Jersey, United States, 08837
        • Premier Urology Group, LL
      • Lawrenceville, New Jersey, United States, 08648
        • Lawrence Obs Gyn clinical Research
      • Mount Laurel, New Jersey, United States, 08054
        • Delaware Valley Urology
    • New York
      • Garden City, New York, United States, 11530
        • AccuMed Research Associates
      • New York, New York, United States, 10016
        • Manhattan Medical Research Practice PLLC
      • Poughkeepsie, New York, United States, 12601
        • Premier Medical Group
      • West Seneca, New York, United States, 14224
        • Circuit Clinical
    • North Carolina
      • Charlotte, North Carolina, United States, 28207
        • American Health Research Inc
      • Greensboro, North Carolina, United States, 27403
        • Alliance Urology Specialist PA
      • New Bern, North Carolina, United States, 28562
        • Eastern Carolina Women's
    • Ohio
      • Cincinnati, Ohio, United States, 45212
        • The Urology Group
      • Cleveland, Ohio, United States, 44195
        • Cleveland Clinic
      • Columbus, Ohio, United States, 43213
        • Aventiv Research
    • Pennsylvania
      • Allentown, Pennsylvania, United States, 18103
        • Institute for Female Pelvic Medicine
      • Bala-Cynwyd, Pennsylvania, United States, 19004
        • Urologic Consultants of Southeastern PA LLP
      • Philadelphia, Pennsylvania, United States, 19104
        • University of Pennsylvania Health System
    • South Carolina
      • Mount Pleasant, South Carolina, United States, 29464
        • Coastal Carolina Research Center
      • Myrtle Beach, South Carolina, United States, 29572
        • Carolina Urologic Research
    • Tennessee
      • Jackson, Tennessee, United States, 38305
        • The Jackson Clinic
    • Texas
      • Austin, Texas, United States, 78758
        • Elligo - Austin Area OBGYN
      • Dallas, Texas, United States, 75231
        • Urology Clinics of North Texas
      • San Antonio, Texas, United States, 78229
        • Clinical Trials of Texas Incorporated
      • San Antonio, Texas, United States, 78229
        • Urology San Antonio Research PA
    • Utah
      • Layton, Utah, United States, 84041
        • Synexus Clinical Research Advantage, Inc. - Wasatch Peak Family Practice
    • Virginia
      • Virginia Beach, Virginia, United States, 23462
        • Urology of Virginia
    • Washington
      • Mountlake Terrace, Washington, United States, 98043
        • Urology Northwest PS
      • Seattle, Washington, United States, 98105
        • Seattle Womens: Health, Research, Gynocology

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Key Inclusion Criteria:

  • SUI symptoms of at least 6 months duration
  • Predominant SUI as determined at the Screening Visit using the Medical, Epidemiological, and Social Aspects of Aging (MESA) urinary questionnaire.
  • 24-Hour pad weight > 3 g during the screening period
  • A minimum of 1 and no more than 15 SUI episodes on any single day AND no fewer than 9 total SUI episodes over 3 days during the screening period
  • Positive bladder stress test conducted during the Screening Visit

Key Exclusion Criteria:

  • History of pelvic radiation treatment
  • History of urethral diverticula
  • History of urethral sling or anterior prolapse repair
  • Treatment with urethral bulking agents and/or other SUI procedure or surgery within the 6 months prior to the Screening Visit
  • Known vesicoureteral reflux, vaginal prolapse beyond the introitus, or other significant pelvic floor abnormalities
  • Urinary incontinence of neurogenic etiology
  • Morbidly obese (defined as 100 pounds over ideal body weight, or body mass index 40 or greater)
  • Chronic hepatitis
  • Hepatic cirrhosis
  • Evidence of active infection with hepatitis B or hepatitis C
  • History of human immunodeficiency virus (HIV) infection
  • Subjects with a history of breast or endometrial cancer

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: 1 mg GTx-024
Study drug will be provided as softgel capsules in blister packaging, labeled and designed to protect study blinding. All subjects will take 2 softgel capsules orally, once daily.
Drug: GTx 024
Study drug is an opaque, white to off-white, size 5, oval Softgel capsule containing the active ingredient GTx-024.
Other Names:
  • Enobosarm
Active Comparator: 3 mg GTx-024
Study drug will be provided as softgel capsules in blister packaging, labeled and designed to protect study blinding. All subjects will take 2 softgel capsules orally, once daily.
Drug: GTx 024
Study drug is an opaque, white to off-white, size 5, oval Softgel capsule containing the active ingredient GTx-024.
Other Names:
  • Enobosarm
Placebo Comparator: matching placebo
Study drug will be provided as softgel capsules in blister packaging, labeled and designed to protect study blinding. All subjects will take 2 softgel capsules orally, once daily.
Drug: Placebo
Placebo study drug is identical in appearance to the GTx-024 study drug and contains polyethylene glycol 400 but not GTx-024.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Number of Participants With a ≥ 50% Reduction From Baseline in the Mean Number of Stress Incontinence Episodes Per Day at Week 12
Time Frame: 12 Weeks
Mean number of subject-reported stress incontinence episodes per day through a responder analysis, where a responder is defined as having a ≥ 50% reduction at the end of treatment (Week 12) compared to baseline in the number of stress incontinence episodes
12 Weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
GTx

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Kenneth M Peters, MD, Oakland University, William Beaumont School of Medicine

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
August 21, 2017

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 21, 2018

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 21, 2018

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 2, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 4, 2017

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 7, 2017

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 24, 2021

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 3, 2021

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2021

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • G201002

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

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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