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Vitamin d shows promise for Kids' bladder issues

NCT ID NCT06489951

Symptom relief Sponsor: Xing Liu Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This study tested whether high-dose vitamin D plus behavioral therapy can help children with dry overactive bladder (OAB) urinate less often. 180 children received either standard drugs or vitamin D drops for a short time. The goal was to see if vitamin D works better than usual medication.

What this could mean

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

Active substance
vitamin D (dietary supplement)
What this could lead to
If it works, this could offer a simple, non-drug option to reduce frequent urination in children with dry overactive bladder.
What could go wrong
This is a small, completed trial with 180 children. The results may not apply to all kids, and high-dose vitamin D can have side effects like high calcium levels.

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

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

180 people

The number who actually took part.

Started

Dec 2024

Finished

Jul 2025

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

5 to 18 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: 1. Children older than 5 years who were admitted to the Department of Urology, Children's Hospital Affiliated to Chongqing Medical University and diagnosed with dry OAB. 2. The results of our laboratory indicated that the serum vitamin D level was lower than 35ng/mL. 3. The child (guardian) has been informed of the nature of the study, understands the provisions in the protocol, is able to guarantee compliance, and signs the informed consent. Exclusion Criteria: 1. Patients with other urinary system malformations or serious diseases (such as hypospadias, cryptorchidism, posterior urethral valvular disease, vesicoureteral reflux, neurogenic bladder, urinary system tumors, urinary calculi, bladder and urethral injuries, etc.); 2. complicated with neurological diseases (such as epilepsy, spinal cord injury, spinal cord dysplasia, tethered cord syndrome, multiple sclerosis, autism spectrum disorder, etc.); 3. Patients with severe heart disease, abnormal liver and kidney function, lung disease, bone malformation, severe digestive tract disease, and genetic metabolic disease; 4. History of gastrointestinal surgery and urinary system surgery; 5. Dry stool, long-term constipation; 6. are taking anticonvulsant and antiepileptic drugs, hormones, antituberculosis drugs; 7. Previous history of hypercalcemia, hyperphosphatemia with renal rickets; 8. History of unexplained hematuria and urinary tract infection in the past 1 year; 9. Have a history of allergy or allergic reaction to vitamin D preparations; 10. Participating in another clinical study at the time of visit or during the follow-up of another clinical study; 11. Those who did not want to participate in the study or had poor follow-up compliance

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Conditions

The condition(s) this trial relates to.

overactive bladder

As listed by the trial registrant

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

Overactive bladder Pediatric disorder

Contacts and locations

Locations

  • Children's Hospital of Chongqing Medical University

    Chongqing, Chongqing Municipality, 400000, China

More trials for these conditions

Other studies related to the condition(s) this trial covers.