Could a probiotic in the bladder ease catheter troubles?

NCT ID NCT04323735

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study is testing whether a probiotic (Lactobacillus Rhamnosus GG) placed directly into the bladder can reduce urinary symptoms in people with neurogenic bladder who use an indwelling catheter. Researchers will also look at changes in urine inflammation, bacteria, and the overall urine ecosystem. The goal is to find the best dose for a future larger trial.

What this could mean

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

Active substance

Lactobacillus Rhamnosus GG (a probiotic)

What this could lead to

If it works, this could point toward a simple, non-antibiotic way to reduce urinary symptoms and infections in people with neurogenic bladder who use catheters.

What could go wrong

This is an early Phase 2 trial with only 182 participants, so results may not apply to everyone. The probiotic may not improve symptoms or could cause irritation.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

Urinary Bladder, Neurogenic

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • MedStar National Rehabilitation Hospital

    RECRUITING

    Washington D.C., District of Columbia, 20010, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact