Clinical trial Recruiting at 1 site Phase 4 Interventional Ages 18 and up

Using Botox to treat overactive bladder while preventing urinary tract infections

Official title: Urinary Tract Infection Prophylaxis In Intradetrusor OnabotulinumtoxinA Procedures: A Randomized Controlled Trial

Run by Walter Reed National Military Medical Center · NCT06387329 · Data updated 2026-11-12

This study is testing if Botox injections for overactive bladder can be safely combined with a specific antibiotic to help prevent urinary tract infections in women.

Quick facts

PhasePhase 4
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment100 (estimated)
SponsorWalter Reed National Military Medical Center
Federal
Locations1 site (Bethesda, Maryland)
StatusRecruiting
StartedApril 4, 2024
Main results expectedJune 30, 2025
Study endsJune 30, 2025
Registry record updatedFebruary 19, 2025
Trial IDNCT06387329 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are female patients aged 18 and older diagnosed with overactive bladder or bladder pain syndrome who are planning to receive Botox injections.

Probably not a fit

Patients with contraindications to nitrofurantoin, active urinary tract infections, or those with recurrent UTIs may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial investigates the use of intradetrusor onabotulinumtoxinA injections for treating overactive bladder (OAB) and bladder pain syndrome (IC/BPS) in female patients. The study aims to determine the optimal antibiotic prophylaxis regimen, specifically nitrofurantoin, to prevent urinary tract infections (UTIs) that may occur after the Botox treatment. By evaluating the timing, duration, and type of antibiotic, the trial seeks to minimize antibiotic use while effectively preventing UTIs, addressing a significant gap in current treatment protocols. The study population includes women aged 18 and older who are planning to undergo Botox injections for their condition.

Why it matters

Potential benefit: If successful, this study could provide a more effective and safer approach to managing urinary tract infections in patients receiving Botox for overactive bladder.

How similar studies have gone: While there have been retrospective studies on antibiotic prophylaxis for this population, this prospective study aims to fill a gap in the literature and is considered novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* All patients 18 years or older being seen at the WRNMMC Urogynecology clinic
* Diagnosis of OAB or IC/BPS
* Planning to undergo intradetrusor onabotulinumtoxinA injection for treatment of their OAB or IC/BPS
* Ability to follow instructions and complete follow up

Exclusion Criteria:

* Contraindication to nitrofurantoin (allergy, CrCl \<30mL/minute)
* If performed in the operating room, the patient cannot undergo a concurrent procedure that would increase the risk of UTI or require an alternate antibiotic regimen (such as hysterectomy, prolapse repair, or anti-incontinence procedure)
* Active UTI at the time of procedure
* Neurogenic bladder
* Recurrent UTI (3 in 12 month period or 2 in 6 months)
* Post void residual bladder volume ≥150mL
* Patient is already taking antibiotics at the time of the procedure
* Contraindication to onabotulinumtoxinA (allergy, pregnancy, greater than 400 units of onabotulinumtoxinA received in the last 3 months)

Where it's running

  • Walter Reed National Military Medical Center
    Bethesda, Maryland, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.