Actively Recruiting

Phase Not Applicable
Age: 18Years - 90Years
All Genders
Healthy Volunteers
NCT04846803

Bacterial Interference for Preventing Recurrent Urinary Tract Infection - New Ways of Treatment

Led by Odense University Hospital · Updated on 2025-09-18

80

Participants Needed

2

Research Sites

203 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

Urinary tract infection (UTI) is one of the most common bacterial infections worldwide. It affects 150 million people annually. Treatment of patients with UTI entails a high consumption of antibiotics and large social and health costs. With this protocol, we want to elucidate alternative treatment methods for especially recurrent urinary tract infection. Bacteria have internal competitiveness (bacterial interference) and it is known that the non-pathogenic E.coli can outcompete the pathogenic E.coli in laboratory studies. We intend to strengthen the clinical evidence that it can be used as patient treatment through a clinical, placebo-controlled, double-blind trial at Odense University Hospital.

CONDITIONS

Official Title

Bacterial Interference for Preventing Recurrent Urinary Tract Infection - New Ways of Treatment

Who Can Participate

Age: 18Years - 90Years
All Genders
Healthy Volunteers

Eligibility Criteria

Eligible

You may qualify if you...

  • Diagnosed with recurrent cystitis including 2 times of recurrent urinary tract infection within the last 6 months or 3 times in the last 12 months, where at least 2 cultures show the same bacteria.
  • Normal investigation for lower urinary tract diseases including voiding diary, symptom scores, flexible cystoscopy, voiding diagram and test for residual urine.
  • Failed previous treatments.
  • Patients with native bladder with spontaneous voiding, need for clean intermittent catheterization, or indwelling catheter.
  • Patients with neurogenic and non-neurogenic bladder dysfunction.
  • Patients with urostomy, kidney transplantation, or other complicated origins.
  • Written consent provided.
Not Eligible

You will not qualify if you...

  • Malignancy in the urinary tract.
  • Kidney, ureteral, or bladder stones.
  • Age under 18 years.
  • Pregnancy or breastfeeding.
  • Current oral antibiotic treatment.
  • Unable to speak or understand Danish.

AI-Screening

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Trial Site Locations

Total: 2 locations

1

Aarhus University Hospital

Aarhus N, Denmark, 8200

Actively Recruiting

2

Odense University Hospital

Odense C, Denmark, 5000

Actively Recruiting

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Research Team

K

Karin Andersen, MD

CONTACT

L

Lars Lund, Prof.

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

QUADRUPLE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

PREVENTION

Number of Arms

2

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