Gut bacteria could hold key to better colon cancer detection

NCT ID NCT06741293

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

Summary

This study aims to improve early detection of colorectal cancer by analyzing gut bacteria in stool samples from 30,000 people in Portugal aged 40-74. Researchers will compare the microbiome of healthy individuals with those who have precancerous polyps or cancer, looking for unique bacterial signatures. The goal is to develop a more accurate, non-invasive screening test than current methods like the FIT test.

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 lead to a more accurate, non-invasive stool test for early colorectal cancer detection, potentially saving lives through earlier diagnosis.

What could go wrong

This is an observational study, not a treatment trial. It may not identify reliable biomarkers, and any new test would require further validation in larger studies before clinical use.

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.

colorectal cancer colorectal neoplasm

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

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

  • Contact

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

Locations

  • Gulbenkian Institute for Molecular Medicine

    RECRUITING

    Lisbon, Lisbon District, 1649-028, Portugal

    Contact

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