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BOTOX® at the Time of Prolapse Surgery for OAB

Intravesical OnabotulinumtoxinA Injection at the Time of Prolapse Surgery for the Treatment of Overactive Bladder Syndrome: a Randomized Controlled Trial

Status
UNKNOWN
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04807920
Enrollment
138
Registered
2021-03-19
Start date
2021-09-23
Completion date
2023-06-30
Last updated
2021-10-14

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

Conditions

Urinary Bladder, Overactive, Pelvic Organ Prolapse

Keywords

Botulinum Toxins, Type A, Mixed Urinary Incontinence, Urgency urinary incontinence

Brief summary

The purpose of the study will be to assess the efficacy and safety of bladder BOTOX® for overactive bladder symptoms, such as urinary urgency and frequency, given at the time of prolapse surgery.

Detailed description

After being informed about the study and the potential risks, women scheduled for prolapse surgery will be screened for bothersome overactive bladder symptoms. Those that qualify and choose to enroll will be randomized to receive either bladder BOTOX® or a placebo at the time of their surgery. Neither the patient nor the investigators will know if the patient receives BOTOX® or a placebo. Subjects will complete questionnaires and bladder diaries both before and after surgery to determine efficacy and patient satisfaction. Potential adverse events, such as urinary tract infections and urinary retention, will be monitored throughout the study.

Interventions

Intravesical injection

Intravesical injection

Sponsors

Walter Reed National Military Medical Center
Lead SponsorFED

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

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

Inclusion criteria

* Women scheduled for prolapse surgery * Bothersome OAB symptoms determined by a score of \>20 on the OAB-q SF * Willingness to perform clean intermittent catheterization (CIC) * Ability to follow study instructions and complete required follow up

Exclusion criteria

* Contraindications or allergy to Onabotulinumtoxin A * Intravesical Onabotulinumtoxin A within 3 months of the planned surgery date * Total body Onabotulinumtoxin A dose of ≥ 400 Units in the 3 months prior to the scheduled surgery date. * Inability or unwillingness to self-catheterize * Post-void residual ≥ 200mL * Neurogenic bladder or other neurological diseases that may cause voiding dysfunction * Concurrent use of other pharmacological treatment for the treatment of OAB symptoms at the time of prolapse repair surgery. * Females who are pregnant, think they may be pregnant at the start of the study, planning a pregnancy during the active treatment phase of the study, or who are unwilling or unable to use a reliable form of contraception during the active treatment phase of the study. * Inability to speak or read English

Design outcomes

Primary

MeasureTime frameDescription
Change from baseline to postoperative weeks 6 to 12 in Overactive Bladder bother short form (OAB-q SF) questionnaire looking for a decrease of 10 points, which is the minimally important difference.From baseline (time of enrollment) to 6-12 weeks postoperativelyThe OAB-q SF is a validated 6 item questionnaire that is scored and reported on a 0 to 100 point scale with increasing scores indicating more bother.

Secondary

MeasureTime frameDescription
Change from baseline to postoperative weeks 6 to 12 in the Pelvic Organ Prolapse/Urinary Incontinence Sexual Questionnaire short form (PISQ-12).From baseline (time of enrollment) to 6-12 weeks postoperativelyThe PISQ-12 is a 12 item validated questionnaire that evaluates sexual function in women with urinary incontinence and/or pelvic organ prolapse. It is reported on a scale of 0-48, with a higher score indicating worse sexual function.
Change from baseline to postoperative weeks 6 to 12 in Patient Global Impression of Severity Scale (PGI-S).From baseline (time of enrollment) to 6-12 weeks postoperativelyThe PGI-S is a 7 point Likert scale, ranging from 1 to 7, with an increasing score indicating greater severity.
Patient Global Impression of Improvement Scale (PGI-I) at 6 to 12 weeks postoperatively.At 6-12 weeks postoperativelyThe PGI-I is a 7 point Likert scale, ranging from 1 to 7, with an increasing score indicating less improvement.
Urinary tract infectionFrom time of treatment to 12 weeks postoperativeRate of urinary tract infections based on clinical suspicion and urine culture results
Urinary retentionFrom 2 weeks postoperatively to 12 weeks postoperativelyRate of urinary retention requiring catheterization, defined as a post-void residual of more than 400mL or 200-400mL with symptoms of incomplete bladder emptying.

Countries

United States

Contacts

Primary ContactJoy E Wheat, MD
joy.e.wheat.mil@mail.mil201-710-5109
Backup ContactChristine Vaccaro, DO
christine.m.vaccaro.mil@mail.mil301-400-2468

Outcome results

None listed

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