Using Oxybutynin to Treat Bladder Pain After Surgery

Oxybutynin for Post-surgical Bladder Pain and Urgency

Phase 3 Interventional University of California, Davis · NCT03952299

This study is testing if a skin patch of oxybutynin works better than taking it by mouth to help young kids with bladder pain after surgery.

Quick facts

PhasePhase 3
Study typeInterventional
Enrollment100 (estimated)
Ages4 Years to 8 Years
SexAll
SponsorUniversity of California, Davis Academic / other
Locations1 site (Sacramento, California)
Trial IDNCT03952299 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to evaluate the effectiveness of transdermal oxybutynin compared to oral oxybutynin in managing bladder pain and urgency following bladder surgery in children aged four to eight. The study will involve patients who require an indwelling bladder catheter post-surgery, assessing the pain relief provided by each method of administration. Given the limitations of oral oxybutynin due to poor bioavailability and side effects, the trial seeks to determine if the transdermal patch can offer superior outcomes. The results could provide valuable insights into postoperative care for pediatric patients undergoing bladder surgery.

Who should consider this trial

Good fit: Ideal candidates for this study are children aged four to eight who are scheduled for bladder surgery requiring an indwelling catheter.

Not a fit: Patients with prior bladder surgery or those with neurological diseases affecting bladder sensation will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved pain management strategies for children recovering from bladder surgery.

How similar studies have performed: Previous studies have shown the efficacy of oxybutynin in adults for similar conditions, but this approach in pediatric populations is less explored, making it a novel investigation.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients who will undergo bladder surgery that requires an indwelling bladder catheter after surgery.
* Age Range: Four to 8 years of age are eligible for the study.

Exclusion Criteria:

* Patients who have had prior bladder surgery.
* Patients who have neurologic disease that could impair bladder sensation.
* Patients who are already taking antimuscarinic or antispasmodic medications.
* Patients with glaucoma, any neurologic disease, dementia, impaired mentation or disorder of the central nervous system.
* Patients taking any medication that affects the central nervous system such as antidepressant, anxiolytic or antipsychotic medications.
* Less than four years of age cannot have the transdermal patch due to fixed dose. Over 8 years of age: less than 5% of our patients, who undergo this surgery, are over 8 years of age and is usually a rare adolescent. Data in an older cohort may confuse the results since they respond differently to bladder surgery due to larger incision and longer hospital stay with a catheter.

Where this trial is running

Sacramento, California

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Overactive Bladder SyndromeNeuropathic BladderTransdermal Oxybutynin
Last reviewed 2026-06-13 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.