Scientists hunt for clues to drug resistance in tough colorectal cancer

NCT ID NCT07617610

First seen Jun 25, 2026 · Last updated Jun 25, 2026

Summary

This study looks at why a specific type of advanced colorectal cancer (with a BRAF V600E mutation) becomes resistant to standard targeted therapy. Researchers will collect tumor tissue, blood, and stool samples from 30 patients before treatment and when the disease progresses. They will also grow mini-tumors in the lab to test new ways to overcome resistance. The goal is to gather knowledge that could lead to more effective treatments in the future.

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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: •••••@•••••

Locations

  • Bürgerspital Solothurn

    RECRUITING

    Solothurn, 4500, Switzerland

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

    Contact

  • HFR Freiburg - Kantonsspital

    RECRUITING

    Villars-sur-Glâne, 1752, Switzerland

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

    Contact

  • HOCH Health Ostschweiz - Kantonsspital St. Gallen

    RECRUITING

    Sankt Gallen, 9007, Switzerland

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

    Contact

  • Inselspital Bern

    RECRUITING

    Bern, 3010, Switzerland

    Contact

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

  • Kantonsspital Aarau

    RECRUITING

    Aarau, CH-5000, Switzerland

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

    Contact

  • Kantonsspital Baden

    RECRUITING

    Baden, 5404, Switzerland

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

    Contact

  • Kantonsspital Graubünden

    RECRUITING

    Chur, 7000, Switzerland

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

    Contact

  • Kantonsspital Winterthur

    RECRUITING

    Winterthur, 8004, Switzerland

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

    Contact

  • Luzerner Kantonsspital

    RECRUITING

    Lucerne, 6004, Switzerland

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

    Contact

  • St. Claraspital

    RECRUITING

    Basel, 4058, Switzerland

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

    Contact

  • Universitaetsspital Basel

    RECRUITING

    Basel, CH-4031, Switzerland

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

    Contact

  • Universitätsspital Zürich USZ

    RECRUITING

    Zurich, 8091, Switzerland

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

    Contact

What this could mean

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

Active substance

Longitudinal translational sampling (tumor tissue, blood, stool) and patient-derived organoids

What this could lead to

If successful, this could reveal why current treatments stop working and point toward new drug combinations to overcome resistance.

What could go wrong

This is an early-stage observational study with only 30 participants, so findings may not apply to all patients. It does not test a new treatment directly.

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.