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Nettle and cranberry combo tested to stop recurrent UTIs

NCT ID NCT05880602

Prevention Sponsor: Chung Shan Medical 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This completed study tested whether taking nettle and cranberry capsules twice daily for 8 weeks could prevent recurrent urinary tract infections (UTIs) in adults aged 30 to 75. Sixty participants with a history of frequent UTIs were given either the supplement or a placebo. Researchers tracked how long participants stayed infection-free and how many UTIs occurred during the study.

What this could mean

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

Active substance
nettle and cranberry complex capsules
What this could lead to
If it works, this could offer a natural supplement to help prevent recurrent urinary tract infections.
What could go wrong
This is a small, completed trial with only 60 participants. The supplement may not be more effective than placebo, and results may not apply to everyone.

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

60 people

The number who actually took part.

Started

Jul 2023

Finished

Dec 2023

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

30 to 75 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: * aged between 30 and 75 years * at least two episodes in 6 months, or at least three episodes of a UTI in 12 months. Exclusion Criteria: * pregnancy women * diabetes * History of anatomical urogenital anomalies, urogenital tract surgery * History of acute or chronic renal failure, nephrolithiasis * History of intestinal diseases causing malabsorption * Anticoagulant medication in the last month * immunocompromise * Known allergy or intolerance to cranberry

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Conditions

The condition(s) this trial relates to.

Inflammation Reinfection urinary tract infection urinary tract infections, recurrent, susceptibility to

As listed by the trial registrant

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

Urinary tract infection

Contacts and locations

Locations

  • Chung Shan Medical University Hospital

    Taichung, 40201, Taiwan

More trials for these conditions

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