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Could a simple patch beat pills for Post-Surgery bladder pain?

NCT ID NCT03952299

Symptom relief Sponsor: University of California, Davis Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether a skin patch that delivers oxybutynin works better than oral pills to reduce bladder pain and urgency in children after bladder surgery. About 100 children aged 4 to 8 will be enrolled. The goal is to see if the patch provides better relief and reduces the need for narcotic painkillers.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Oxybutynin (Ditropan XL) given as a transdermal patch or oral pill
What this could lead to
If it works, this could point toward a better way to manage bladder pain and urgency after surgery in children, possibly reducing the need for strong painkillers.
What could go wrong
This is a small, early-phase trial with only 100 children, so results may not apply to everyone. The patch might not be more effective than the pill, and side effects like skin irritation or drowsiness are possible.

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 3

Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.

Participants

About 100 people

The number the study aims to enrol. It can still change while the study runs.

Started

Sep 2021

Expected to finish

Dec 2026

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

4 to 8 years

Sex

Anyone

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

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.

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Conditions

The condition(s) this trial relates to.

Hinman syndrome overactive bladder Urinary Bladder, Neurogenic

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Neuropathic bladder Overactive bladder syndrome

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • University of California Davis Medical Center (UCDMC)

    RECRUITING

    Sacramento, California, 95817, United States

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