Proton therapy trial for recurrent rectal cancer halted early

NCT ID NCT04827732

First seen Nov 01, 2025 · Last updated May 02, 2026 · Updated 26 times

Summary

This study looked at using a precise type of radiation (proton therapy) to treat rectal cancer that returned after previous radiation. The goal was to find the highest safe dose without causing severe side effects. The trial was stopped early after enrolling 15 people, and results are limited.

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Contacts and locations

Locations

  • Washington University School of Medicine

    St Louis, Missouri, 63110, United States

Conditions

Explore the condition pages connected to this study.