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Use of Prophylactic Antibiotics Prior to OnabotulinumtoxinA

Use of Prophylactic Antibiotics Prior to OnabotulinumtoxinA Treatment of Overactive Bladder: a Randomized Controlled Trial

Who can join

Ages 18 and older · Women · Healthy volunteers welcome

Inclusion Criteria:

* Female
* Age ≥ 18
* Patient undergoing bladder Botox treatment

Exclusion Criteria:

* Pregnant and/or breastfeeding
* Contraindication to injection of Botox - hypersensitivity to any botulinum toxin preparation or to any of the components in the formulation, symptomatic urinary retention or post void residual (PVR) \> 200 mL, unwillingness or inability to initiate clean intermittent catheterization (CIC) post-treatment if required.
* Contraindication to oral antibiotics - hypersensitivity or allergy
* Inability to take medication by mouth

About the study

This study aims to show that lack of antibiotic prophylaxis to those undergoing bladder Botox injections is not significantly inferior to administering prophylaxis. By proving this, the investigators aim to decrease antibiotic use in this setting to combat the growing issue of antibiotic resistance.

Participants will be randomized to antibiotic or no treatment arm. Those randomized to the treatment arm will receive oral antibiotics for 2 days pre-treatment, on the treatment day, and 2 days post-treatment. Participants will return for a follow up appointment approximately 2 weeks after treatment to assess for urinary tract infection (UTI) symptoms. They will be called again at 6 weeks for follow up.

What is being tested

• Nitrofurantoin (drug)

Sponsor: Atlantic Health System · Participants: 140 · Started: Aug 16, 2022

Contact the study team

• Anastasiya Holubyeva, MD · Phone: 9739717267

Official record on ClinicalTrials.gov — NCT05519072

Locations in the U.S.

From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.