New blood test aims to cut unnecessary colonoscopies after cancer screen
NCT ID NCT07479381
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This pilot study tested a blood-based test (Harbinger test) to help decide who needs a colonoscopy after a positive colorectal cancer screening. The goal was to see if the blood test could accurately predict colorectal cancer or advanced adenomas. However, the study was terminated early and only enrolled 14 people, so the results are not conclusive.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
blood-based diagnostic test (Harbinger test)
What this could lead to
If successful, this blood test could help decide who needs a colonoscopy after a positive screening, reducing unnecessary procedures.
What could go wrong
The study was terminated early with only 14 participants, so results are very limited. It is unclear if the test works reliably.
Disclaimer
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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.
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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Aton Health
Kansas City, Missouri, 64114, United States