Can a gut bug beat kidney stones?

NCT ID NCT06330246

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

Summary

This study tests whether giving people a live gut bacterium called Oxalobacter formigenes can lower the amount of oxalate in their urine. High urinary oxalate is a major risk factor for calcium oxalate kidney stones. Forty adults with a history of such stones who lack this bacterium will take it by mouth, then follow controlled diets to measure changes in oxalate levels.

What this could mean

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

Active substance
live Oxalobacter formigenes bacteria
What this could lead to
If it works, this could point toward a natural way to reduce kidney stone risk by restoring a helpful gut bacterium.
What could go wrong
This is a small, early-stage study with only 40 participants. It tests a short-term effect, and long-term benefits or safety are not yet known.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for CALCIUM OXALATE KIDNEY STONE DISEASE are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

Contacts and locations

Locations

  • UTSW

    RECRUITING

    Dallas, Texas, 75390, United States

  • University of Alabama at Birmingham

    RECRUITING

    Birmingham, Alabama, 35294, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.