Probiotic yeast tested as IBS symptom relief in major trial

NCT ID NCT07168434

First seen Nov 01, 2025 · Last updated Apr 30, 2026 · Updated 22 times

Summary

This study tests a probiotic yeast called Saccharomyces boulardii to see if it can reduce belly pain and other symptoms in people with non-constipated irritable bowel syndrome (IBS). About 406 adults will take either the probiotic or a placebo daily for 8 weeks. Researchers will measure symptom severity and quality of life to determine if this yeast helps manage IBS.

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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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Contacts and locations

Study contacts

  • Contact

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

  • Contact

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

Locations

  • Hospital Clínico San Carlos

    NOT_YET_RECRUITING

    Madrid, 28040, Spain

    Contact

  • Hospital Universitario Central de Asturias & Centro de Salud la Lila

    NOT_YET_RECRUITING

    Oviedo, 33011, Spain

    Contact

  • Hospital Universitario Costa del Sol

    NOT_YET_RECRUITING

    Marbella, 29603, Spain

    Contact

  • Hospital Universitario Gregorio Marañon & Centro de Salud Pavones

    RECRUITING

    Madrid, 28007, Spain

    Contact

  • Hospital Universitario La Paz & Hospital Carlos III

    NOT_YET_RECRUITING

    Madrid, 28046, Spain

    Contact

  • Hospital Universitario Regional de Málaga

    NOT_YET_RECRUITING

    Málaga, 29010, Spain

    Contact

  • Hospital Universitario Vall d'Hebron

    NOT_YET_RECRUITING

    Barcelona, 08035, Spain

    Contact

  • Hospital Universitario de León

    RECRUITING

    León, 24008, Spain

    Contact

  • Hospital da Luz

    NOT_YET_RECRUITING

    Lisbon, Portugal

    Contact

  • Hospital de Braga

    RECRUITING

    Braga, Portugal

    Contact

Conditions

Explore the condition pages connected to this study.