Testosterone shots aim to strengthen pelvic floor in older women
NCT ID NCT06111209
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This pilot study tests whether weekly testosterone injections can increase pelvic floor muscle size and improve stress urinary incontinence in women aged 60 and older. The trial involves 30 participants and uses MRI to measure muscle changes. It is a small, early-stage proof-of-concept study.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- testosterone cypionate
- What this could lead to
- If it works, this could point toward a new treatment for stress urinary incontinence in older women by strengthening pelvic floor muscles.
- What could go wrong
- This is a very small pilot study with only 30 participants, so results may not apply to everyone. It is also early-stage, and the primary outcome is muscle volume, not direct symptom improvement.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
-
About 30 people
The number the study aims to enrol. It can still change while the study runs.
- Started
-
Feb 2025
- Expected to finish
-
Dec 2027
An estimate. End dates often move.
- Lead sponsor
-
Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
60 years and older
- Sex
-
Female participants only
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Women, age 60 years and older. * Medically documented pure stress urinary incontinence on physical exam or urodynamic testing. * Normal mammogram within the last 12 months * Endometrial thickness of ≤4 mm in women with an intact uterus assessed by endometrial ultrasound. * Ability and willingness to provide informed consent. Exclusion Criteria: * • Medically documented urge or mixed urinary incontinence (stress and urge) on physical exam or urodynamic testing. * Participating in pelvic floor muscle training (PFMT) therapy currently or in the past 3 months * Previous pelvic surgery (i.e., hysterectomy, pelvic organ prolapse repair, mid-urethral sling placement, injection of urethral bulking agents) or radiation treatment to the pelvis. * History of ≥ Grade 3 pelvic organ prolapse * Neurologic disorder causing UI or bladder dysfunction (i.e., multiple sclerosis, Parkinson's disease, stroke, cerebral palsy, spinal cord injury) * Current urinary tract infection * History of breast or endometrial cancer * Use of systemic estrogen therapy in the past 3 months * Baseline hematocrit \>48%, serum creatinine \>2.5 mg/dL; HbA1c \>8.0%; BMI \>40 kg/m2 * Uncontrolled hypertension defined as an average of two blood pressure readings of greater than 160/100. * Subjects who are on insulin therapy will be excluded. * Uncontrolled congestive heart failure * Myocardial infarction, acute coronary syndrome, revascularization surgery or stroke within 6 months * History of pulmonary embolism, deep vein thrombosis or a genetic thromboembolic disorder * History of bipolar disorder, schizophrenia or untreated major depression * Presence of metallic implants (pacemakers, aneurysm clips, etc.) that preclude the patient from undergoing MRI
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Brigham and Women's Hospital
Boston, Massachusetts, 02115, United States
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