New combo aims to shrink tough colon cancers before surgery

NCT ID NCT06890624

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

Summary

This phase II trial tests whether a stronger chemotherapy cocktail (cmFOLFOXIRI) plus an immunotherapy drug (PD-1 inhibitor) works better than standard chemotherapy (mFOLFOX6) when given before surgery for locally advanced colon cancer. About 138 patients with high-risk stage II or III colon cancer will be randomly assigned to one of the two treatments. The main goal is to see if the new combo leads to a higher rate of complete tumor disappearance (pathologic complete response) at the time of surgery.

What this could mean

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

Active substance
cmFOLFOXIRI plus PD-1 inhibitor (a combination of chemotherapy drugs and an immunotherapy drug)
What this could lead to
If successful, this could lead to a more effective pre-surgery treatment for advanced colon cancer, potentially increasing the chance of complete tumor removal and reducing recurrence.
What could go wrong
This is an early phase II trial with only 138 participants, so results may not apply to all patients. The combination therapy may cause more side effects than standard chemotherapy, and it is not yet proven to improve long-term outcomes.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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