Could a cup of green tea keep colon cancer away?
NCT ID NCT02891538
First seen Jun 26, 2026 · Last updated Jul 01, 2026 · Updated 2 times
Summary
This pilot study tests whether a purified green tea extract called EGCG can help prevent colon cancer from coming back after surgery. 51 patients who had their colon cancer removed took either the extract or a placebo. Researchers are checking for changes in DNA methylation, a marker linked to cancer risk.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Epigallocatechin gallate (EGCG), a purified green tea extract
What this could lead to
If it works, this could point toward a simple, natural supplement to help prevent colon cancer from coming back after surgery.
What could go wrong
This is a very early, small pilot study. It only looks at biological markers, not whether cancer actually returns. The extract may have no effect or cause side effects.
Disclaimer
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This is a summary of
the original study
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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.
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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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.
Contacts and locations
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Locations
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UT Health San Antonio
San Antonio, Texas, 78229, United States