Could a probiotic plus smart antibiotic use end the cycle of recurrent UTIs in children?

NCT ID NCT06149676

First seen Jul 01, 2026 · Last updated Jul 01, 2026

Summary

This early-phase trial tests whether taking a daily probiotic (Saccharomyces boulardii) and using a targeted antibiotic (ciprofloxacin) only when a UTI occurs can reduce the number of repeat infections in children aged 2 to 17. Participants have had at least three UTIs in the past year or two in the last six months. The study compares this approach to standard care to see if it lowers future UTI episodes.

What this could mean

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

Active substance

Saccharomyces boulardii (probiotic) and ciprofloxacin (antibiotic)

What this could lead to

If it works, this could offer a new way to prevent frequent UTIs in children without long-term daily antibiotics.

What could go wrong

This is a very early, small trial (35 participants) so results may not apply broadly. The approach depends on the infection being sensitive to ciprofloxacin, which may not always be the case.

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 tract infection urinary tract infections, recurrent, susceptibility to

As listed by the trial registrant

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

Contacts and locations

Locations

  • Lurie Children's Hospital

    Chicago, Illinois, 60611, United States