New combo without chemotherapy aims to shrink rectal tumors before surgery

NCT ID NCT07645118

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

Summary

This small study tests a new approach for people with stage II/III rectal cancer that has not spread. Instead of chemotherapy, patients receive targeted internal radiation followed by two doses of the immunotherapy drug nivolumab before surgery. The goal is to see if this combination is safe, practical, and can make the tumor disappear completely by the time of surgery.

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Conditions

The condition(s) this trial relates to.

rectal cancer rectum adenocarcinoma

As listed by the trial registrant

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

Contacts and locations

Locations

  • Jewish General Hospital

    Montreal, Quebec, H3T 1E2, Canada

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