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Cranberry powder may soothe overactive bladder without drugs

NCT ID NCT05557279

Symptom relief Sponsor: Loyola University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether a daily cranberry extract pill can change the bacteria in the bladder to reduce sudden urges and frequent bathroom trips in women who do not have leakage. Researchers will compare bacteria samples and symptom scores before and after 12 weeks of treatment. The goal is to find a natural way to ease overactive bladder symptoms.

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 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

53 people

The number who actually took part.

Started

Jan 2023

Finished

Aug 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

18 to 99 years

Sex

Female participants only

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: * 18 years, female, ambulatory * OAB symptoms \> 6 months * Voiding frequency \> 8 times in 24 hrs and \> 3 episodes of urgency (grade 3 or 4) without incontinence during 3-day diary at baseline Exclusion Criteria: * Self-reported urinary incontinence (\> 3 episodes in the month prior) * UTI \> 3 in last 12 months * A diagnosis of painful bladder syndrome or interstitial cystitis * LUT surgery last 6 months * Drug or non-drug treatment of OAB (previous 60 days) or current meds that affect detrusor activity * On Warfarin * Failure to complete 3-day diary * Aspirin \> 81 mg daily * Gross hematuria * Allergy or sensitivity to aspirin * Subjects taking anti-platelet agents * Inability to swallow capsules

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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

Contacts and locations

Locations

  • Loyola Medical Center

    Maywood, Illinois, 60153, United States

More trials for these conditions

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