Simple blood test could spare thousands from unneeded colonoscopies
NCT ID NCT07237984
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests a new blood test that looks for special molecules called ofCS, which reappear in most colorectal cancers. Researchers will collect blood and stool samples from 2000 people scheduled for a colonoscopy in Denmark. The goal is to see if combining the blood test with existing stool tests can more accurately identify who truly needs a colonoscopy, reducing unnecessary procedures while still catching cancers early.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Blood test for oncofetal chondroitin sulfate-modified proteoglycans (ofCS)
What this could lead to
If successful, this blood test could help doctors decide who really needs a colonoscopy, catching cancers early while avoiding many unnecessary procedures.
What could go wrong
This is an early-stage study with 2000 people in Denmark. The test may not work as well in larger, more diverse groups, and it is not yet proven to reduce harm or save lives.
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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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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Study contacts
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Contact
Email: •••••@•••••
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Copenhagen University Hospital - Amager-Hvidovre
Hvidovre, 2650, Denmark
Contact Email: •••••@•••••
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Copenhagen University Hospital - North Zealand
Hillerød, 3400, Denmark
Contact Phone: •••-•••-•••• Email: •••••@•••••