Gut bugs linked to transplant complication risk

NCT ID NCT05186857

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

Summary

This study looks at how changes in gut bacteria and their byproducts after a stem cell transplant might influence the development of graft-versus-host disease (GVHD), a serious complication. Researchers will collect stool and blood samples from 88 transplant recipients and their donors at several time points. By analyzing these samples, they hope to find patterns that predict GVHD and overall survival.

What this could mean

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

What this could lead to

If successful, this could help doctors predict and prevent graft-versus-host disease by monitoring gut health, leading to better survival after transplant.

What could go wrong

This is an observational study, not a treatment trial. It may not find a clear link, and results may not lead to immediate changes in patient care.

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.

graft versus host disease

As listed by the trial registrant

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

Contacts and locations

Locations

  • Hospital Clínico de Salamanca

    Salamanca, Salamanca, Spain

  • Hospital Clínico de Valencia

    Valencia, Valencia, Spain

  • Hospital La Paz, Madrid

    Madrid, Madrid, Spain

  • Hospital Marqués de Valdecillas, Santander

    Santander, Cantabria, Spain

  • Hospital Regional Universitario de Málaga

    Málaga, Málaga, Spain

  • Hospital Universitario Reina Sofía

    Córdoba, Córdoba, Spain

  • Hospital Universitario Virgen del Rocío, Sevilla

    Seville, Seville, Spain

  • Hospital Virgen de las Nieves de Granada

    Granada, Granada, Spain

  • Hospital del Niño Jesús, Madrid

    Madrid, Madrid, Spain