Clinical trial Recruiting at 1 site Phase2; Phase3 Interventional Ages 18 to 90 Women only

Using fecal microbiota transplantation to prevent recurrent urinary tract infections

Official title: Faecal Microbiota Transplantation as Means of Preventing Recurrent Urinary Tract Infections

Run by Helsinki University Central Hospital · NCT06050148 · Data updated 2026-11-12

This study is testing if a treatment using gut bacteria from healthy donors can help women who often get urinary tract infections to have fewer of them.

Quick facts

PhasePhase2; Phase3
Study typeInterventional
Ages18 Years to 90 Years
SexWomen only
Enrollment100 (estimated)
SponsorHelsinki University Central Hospital
Academic / other
Locations1 site (Helsinki)
StatusRecruiting
StartedAugust 1, 2023
Main results expectedDecember 31, 2028
Study endsDecember 31, 2029
Registry record updatedSeptember 22, 2023
Trial IDNCT06050148 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are women aged 18 and older with a history of recurrent urinary tract infections.

Probably not a fit

Patients with gastrointestinal diseases, pregnancy, or those on immunosuppressive therapy may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study investigates the use of fecal microbiota transplantation (FMT) as a method to prevent recurrent urinary tract infections (UTIs) in female patients. Participants will receive either FMT or a placebo to assess the effectiveness of this intervention against UTIs caused by both sensitive and ESBL-producing E. coli. The study aims to determine if altering gut microbiota can reduce the frequency of UTIs in individuals with a history of recurrent infections. Eligible participants must have experienced multiple UTIs within a specified timeframe and provide informed consent to participate.

Why it matters

Potential benefit: If successful, this approach could significantly reduce the incidence of recurrent urinary tract infections in women, improving their quality of life.

How similar studies have gone: Other studies have shown promise in using fecal microbiota transplantation for various conditions, but this specific application for recurrent UTIs is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion criteria:

* Female subjects aged ≥18
* History of recurrent UTI: at least two episodes of UTI over the past 6 months or at least three episodes over the past year, most recent episode within the past three months
* Written informed consent

Exclusion criteria:

* Suspected non-compliance
* Diagnosis of a gastrointestinal disease
* Pregnancy
* Immunosuppression
* Any kind of permanent urinary catheter or intermittent urinary catheterization
* Any other criteria which, in the investigator's opinion, would compromise the ability of the subject to participate in the study, the subject's well-being, or the outcome of the study

Where it's running

  • Meilahti Vaccine Research Center, Helsinki University Central Hospital
    Helsinki, Finland
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.