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Study to Assess Long-Term Safety/Tolerability of Enobosarm (GTx 024) in Stress Urinary Incontinence

Phase 2, Open-Label Extension Study to Assess Long-Term Safety and Tolerability of Enobosarm (GTx 024) in Postmenopausal Women With Stress Urinary Incontinence

Status
Withdrawn
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03566290
Enrollment
0
Registered
2018-06-25
Start date
2018-06-28
Completion date
2018-09-21
Last updated
2024-03-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Stress Urinary Incontinence

Brief summary

This open-label extension study, for subjects from the G201002 study, will provide additional long-term safety and tolerability data for GTx-024. All subjects in this study will receive GTx-024 3 mg orally, once daily.

Interventions

Study drug is an opaque, white to off-white, size 5, oval Softgel capsule containing the active ingredient GTx-024. Subjects will be required to take one 3 mg Softgel capsule per day.

Sponsors

GTx
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Be an eligible subject from G201002, where an eligible subject is defined as: 1. one of the first 225 subjects who were randomly assigned to the placebo group in G201002 and who have completed the required treatment and durability periods of that study, or; 2. any subject from 226 onwards, who was randomly assigned to any treatment group and who completed the required treatment and follow-up periods of that study * Be able to read, understand, and provide written, dated, informed consent prior to enrollment in the current study and be likely to comply with the study protocol and communicate with study personnel about AEs and other clinically important information * Provide written consent to participate in the study within the following timeframes: 1. for G201002 Subjects 1-225, within 30 days after unblinding of G201002 (subjects who consent to participate in G201003 will be allowed to discontinue from that study and consent to this study upon unblinding of G201002) 2. for G201002 Subjects 226-493, within 30 days of completing both the treatment and follow-up periods of G201002 * Agree to maintain a stable dose of any medication known to affect lower urinary tract function, including but not limited to anticholinergics, tricyclic antidepressants, beta-3 adrenergic agonists, or α-adrenergic blockers, throughout the duration of the study

Exclusion criteria

* Starts any new treatment (medication, pelvic floor physical therapy, or other treatment known to impact the pelvic floor) after completing G201002 that is known or suspected to affect lower urinary tract function, including vaginal rejuvenation * Subject is currently taking systemic sex-hormone products (excludes intravaginal application of estradiol topical/tablet agents and hormones delivered via vaginal rings) * Has a current cancer diagnosis (with the exception of nonmelanoma skin cancer) or any history of breast or endometrial cancer * Has a known history or current episode of: 1. New York Heart Association Stage ≥ 2 hypertension (systolic blood pressure \> 160 mmHg or diastolic blood pressure \> 100 mmHg) at screening and/or baseline. Subjects with hypertension that has been treated and controlled with medication for ≥ 2 weeks prior to screening are eligible for participation 2. Recent myocardial infarction or arterial or venous thromboembolic event (within 1 year) or a history of more than 1 myocardial infarction or arterial or venous thromboembolic event 3. Cardiac-related syncopal event within the past year 4. Cardio or cerebral vascular disease requiring surgical intervention (e.g., bypass surgery, angioplasty). For subjects with previous stent placement, please contact the medical monitor 5. Congestive heart failure of Stage \> 2 according to New York Heart Association criteria 6. Angina pectoris * Has a current or past history of any physical condition that, in the investigator's opinion, might put the subject at risk, impact the absorption of the study drug, or interfere with interpretation of study

Design outcomes

Primary

MeasureTime frameDescription
Safety of GTx-024, weightbaseline through study completion, an average of 1 yearChange from baseline weight
Safety of GTx-024, liver function testbaseline through study completion, an average of 1 yearChange from baseline in liver function test
Safety of GTx-024, lipid panelbaseline through study completion, an average of 1 yearChange from baseline in lipid panel
Safety of GTx-024, sex-hormone binding globulin levelsbaseline through study completion, an average of 1 yearChange from baseline in sex-hormone binding globulin levels
Safety of GTx-024, testosterone levelsbaseline through study completion, an average of 1 yearChange from baseline in testosterone levels
Safety of GTx-024, endometrial stripe thicknessbaseline through study completion, an average of 1 yearChange from baseline in endometrial stripe thickness as measured by transvaginal ultrasound
Safety of GTx-024, adverse eventsbaseline through study completion, an average of 1 yearChange from baseline in incidence of adverse events

Secondary

MeasureTime frameDescription
Efficacy of GTx-024, patient global impression of severitybaseline through study completion, an average of 1 yearChange in patient global impression of severity (PGI-S; scale: 1-normal, 2-mild, 3-moderate, 4-severe; representing severity of urinary tract dysfunction)
Efficacy of GTx-024, patient global impression of improvementbaseline through study completion, an average of 1 yearChange in patient global impression of improvement (PGI-I; scale: 1-very much better, 2-much better, 3-a little better, 4-no change, 5-a little worse, 6-much worse, 7-very much worse; representing change in urinary tract dysfunction from initiation of therapy)
Efficacy of GTx-024, urge incontinencebaseline through study completion, an average of 1 yearChange from baseline in the mean number of urge incontinence episodes per day
Efficacy of GTx-024, total incontinencebaseline through study completion, an average of 1 yearChange from baseline in the mean number of total (stress + urge) incontinence episodes per day
Efficacy of GTx-024, stress incontinencebaseline through study completion, an average of 1 yearChange from baseline in the mean number of stress incontinence episodes per day

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026