Effect of a Probiotic on the Urinary Tract Microbiota of Participants With Recurrent Urinary Tract Infection.

NCT ID: NCT05895578

Last Updated: 2025-08-01

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

90 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-06-21

Study Completion Date

2026-03-31

Brief Summary

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Urinary tract infections (UTIs) are the most common bacterial infections in women. 50% of women experiencing at least one UTI in their lifetime with an annual prevalence of 0.5-0.7%.

An interventional, randomized, double-blind, placebo-controlled study will be conducted to investigate the effect of a probiotic strains on the urinary tract microbiota in participants with recurrent urinary tract infection (rUTI).

The study duration will be 6 and a half months, including 6 months product intake. Participants will be randomly assigned to one of the three study groups: control group with placebo administration, probiotic administration group (1 dose) and probiotic administration group (2 doses).

Detailed Description

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Conditions

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Recurrent Urinary Tract Infection

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Investigators

Study Groups

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Probiotic

2 Capsule daily containing approximately 1\*10E9 colony forming unit (CFU) of Lactobacillus CECT 9422 +1\*10E9 colony forming unit (CFU) of Bifidobacterium CECT 30257.

Group Type ACTIVE_COMPARATOR

Probiotic

Intervention Type DIETARY_SUPPLEMENT

1 capsule of probiotic (Lactobacillus CECT 9422 + Bifidobacterium CECT 30257) every 12 hours for 6-months.

Probiotic + placebo

One capsule daily containing approximately 1\*10E9 colony forming unit (CFU) of Lactobacillus CECT 9422 +1\*10E9 colony forming unit (CFU) of Bifidobacterium CECT 30257 and 1 capsule of placebo supplement.

Group Type ACTIVE_COMPARATOR

Probiotic + placebo

Intervention Type DIETARY_SUPPLEMENT

1 capsule of probiotic + 1 capsule of placebo per day for 6-months.

Placebo

Two capsules daily of Placebo supplement.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DIETARY_SUPPLEMENT

1 capsule of placebo every 12 hours for 6-months.

Interventions

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Probiotic

1 capsule of probiotic (Lactobacillus CECT 9422 + Bifidobacterium CECT 30257) every 12 hours for 6-months.

Intervention Type DIETARY_SUPPLEMENT

Probiotic + placebo

1 capsule of probiotic + 1 capsule of placebo per day for 6-months.

Intervention Type DIETARY_SUPPLEMENT

Placebo

1 capsule of placebo every 12 hours for 6-months.

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Adult women with aged between 18 and 55 years old, diagnosed with recurrent UTI (defined as at least two episodes during the last six months or three during the last 12 months).
* Diagnosed, the last 7days, for a new UTI episode.
* Written informed consent signed.

Exclusion Criteria

* Menopausal
* Pregnant, breastfeeding or planning to become pregnant during the study.
* Congenital abnormalities of the urinary tract.
* Renal functional alterations, such as neurogenic bladder or vesicoureteral reflux.
* Relevant renal disorders, such as interstitial cystitis, renal lithiasis, renal failure, kidney transplantation, pyelonephritis, renal nephropathy, etc.
* Permanent catheter.
* Immunocompromised (eg: cancer and/or transplant, patients who are taking immunosuppressive drugs, patients with hereditary diseases that affect or may affect the immune system).
* Type I diabetes.
* With a defect in the intestinal epithelium barrier (eg: chronic diarrhea, inflammatory bowel disease).
* Heart failure and cardiac medical history (eg, artificial heart valve, medical history of infective endocarditis, rheumatic fever, or cardiac malformation).
* Under antibiotics prophylactic treatment without willingness to leave it at the time of inclusion.
* Probiotics supplementation during the previous 2 weeks.
* To have received Urovac, Uro-Vaxom or equivalent vaccine during the last year.
* Currently participating in another clinical trial.
Minimum Eligible Age

18 Years

Maximum Eligible Age

55 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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ProbiSearch SL

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Hospital La Moraleja

Madrid, , Spain

Site Status RECRUITING

Hospital La Zarzuela

Madrid, , Spain

Site Status RECRUITING

Hospital San Francisco de Asís

Madrid, , Spain

Site Status RECRUITING

Countries

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Spain

Central Contacts

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Susana Manzano Jiménez, PhD

Role: CONTACT

918035179

Facility Contacts

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Miguel Ángel Rodriguez, MD, PhD

Role: primary

Elisa Diaz de Terán, MD

Role: primary

José Ángel Espinosa, MD

Role: primary

Other Identifiers

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UTI/23.01

Identifier Type: -

Identifier Source: org_study_id

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