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

Recruiting now · Not applicable

Conditions studied: Recurrent Urinary Tract Infections

In brief

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.

Key facts

Study ID

NCT04846803

Run by

Odense University Hospital

People needed

80

Starts

2024-01-09

Expected to finish

2027-12-01

Last updated by the study team

2025-09-18

Who can join

Age: 18 and older, up to 90. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Diagnosed with recurrent cystitis including 2 times of rUTI 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 (LUTD) including voiding diary, symptom scores, flexible cystoscopy, voiding diagram and test for residual urine.
• Failed previously treatments.
• Patients with native bladder with both spontaneous voiding, the need for clean intermittent catheter (CIC) or indwelling catheter.
• Patients with neurogenic and non-neurogenic bladder dysfunction.
• Patients with urostomy, kidney transplantation or another complicated genesis.
• Written consent.

You may not qualify if…

• Malignancy in the urinary tract, kidney-, ureteral- or bladder stones, age < 18 years, pregnancy, breastfeeding. Patients in ongoing orally antibiotic treatment. Not able to speak or understand Danish.

Where it is running

• Aarhus University Hospital — Aarhus N, Denmark (enrolling)
• Odense University Hospital — Odense C, Denmark (enrolling)

Full record on ClinicalTrials.gov

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