Probiotic safety check: will a daily capsule cause stomach trouble?

NCT ID NCT07165457

Not yet recruiting Knowledge-focused Sponsor: Clinica Universidad de Navarra, Universidad de Navarra Source: ClinicalTrials.gov ↗

First seen Jun 26, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This study will give 20 healthy adults a probiotic capsule every day for 15 days to see if it causes any stomach or other side effects. Participants will fill out questionnaires about their symptoms. The goal is simply to check safety, not to treat any disease.

What this could mean

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

Active substance: probiotic capsule
What could go wrong: This is a very small, early safety study with only 20 healthy participants. It does not test any health benefit, so even if it shows no side effects, it won't prove the probiotic helps with any condition.

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As listed by the trial registrant

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

ADVERSE EFFECTS HEALTHY

Contacts and locations

Locations

Center for Nutrition Research

Pamplona, Navarre, 31008, Spain

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