Gut bacteria clues could lead to simple cancer test

NCT ID NCT06734156

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study is looking at whether analyzing the bacteria in a person's stool can help detect colorectal cancer earlier, especially in people under 50 who are not routinely screened. Researchers will collect stool samples and diet information from 400 adults in Portugal recently diagnosed with colorectal cancer. The goal is to identify microbiome patterns linked to cancer and use them to create a non-invasive diagnostic tool.

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 simple stool test that detects colorectal cancer earlier, potentially saving lives through timely treatment.

What could go wrong

This is an observational study, not a treatment trial. The test may not prove accurate enough for widespread use, and results may not apply outside Portugal.

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

  • Champalimaud Foundation

    RECRUITING

    Lisbon, Lisbon District, 1400-038, Portugal

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

    Contact

  • Gulbenkian Institute for Molecular Medicine

    RECRUITING

    Lisbon, Lisbon District, 1649-028, Portugal

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

    Contact

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