Cancer vaccine combo trial halted after enrolling just one patient

NCT ID NCT05350501

First seen Nov 01, 2025 · Last updated May 15, 2026 · Updated 25 times

Summary

This study tested a new vaccine (EO2040) made from gut bacteria, combined with the immunotherapy drug nivolumab, in people with colorectal cancer who had signs of remaining disease after standard treatment. The goal was to see if the combination could clear cancer DNA from the blood and prevent the cancer from coming back. However, the trial was stopped early after enrolling only one participant, so no conclusions can be drawn.

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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

Locations

  • MD Anderson

    Houston, Texas, 77030, United States

Conditions

Explore the condition pages connected to this study.