Blood test could revolutionize colon cancer screening
NCT ID NCT05987709
First seen Jan 11, 2026 · Last updated Jun 20, 2026 · Updated 20 times
Summary
This study tested whether offering a blood test (GuardantSHIELD) encourages more people to get screened for colorectal cancer compared to usual care. Over 2000 participants aged 45-75 who had not completed their screening were included. The main goal was to see if more people completed any screening within 3 months when offered the blood test.
Disclaimer
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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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Contacts and locations
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Locations
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Kaiser Permanente Northwest
Portland, Oregon, 97227, United States
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
GuardantSHIELD Blood Test
What this could lead to
If successful, this blood test could make colorectal cancer screening easier and more accessible, potentially catching more cancers early.
What could go wrong
This is a completed study comparing screening completion rates, not a treatment trial. The blood test may not be as accurate as colonoscopy, and abnormal results still require follow-up colonoscopy.
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.