Blood test may boost colorectal cancer screening in reluctant patients
NCT ID NCT05536713
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether offering a simple blood test instead of a colonoscopy or stool test would encourage more people to get screened for colorectal cancer. Researchers enrolled 297 adults aged 45-75 who had previously skipped or refused traditional screening. The goal was to see if a blood-based test is more acceptable and improves screening rates, especially in underserved communities.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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297 people
The number who actually took part.
- Started
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Feb 2023
- Finished
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Dec 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Patients who are age-eligible for colorectal cancer screening based on the U.S. Preventive Service Task Force recommendation guidelines have an average risk for colorectal cancer.
- Ages
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45 to 75 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Between 45-75 years of age * Have an average risk for colorectal cancer * A patient at one of our partner FQHCs * Received a screening order (either using a stool-based test or colonoscopy) six months ago and failed or refused to complete the screening test * Able to comprehend and willing to give informed consent * Able and willing to provide a blood sample per protocol Exclusion Criteria: 1. Family history * One first-degree relative diagnosed with CRC or advanced adenoma at age \< 60 years * Two first-degree relatives diagnosed with CRC or advanced adenoma at any age * Known hereditary gastrointestinal cancer syndromes, such as Lynch Syndrome or Familial Adenomatous and Polyposis (FAP) 2. Personal History * History of CRC or adenoma * History of cancers * History of inflammatory bowel disease, including chronic ulcerative colitis and Crohn's disease * Have a recorded up-to-date CRC screening * Blood product transfusion in the past 120 days * A medical condition that, in the opinion of the patient's health provider, should preclude enrollment in the study
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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
Locations
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PCC Community Wellness Center
Chicago, Illinois, 60302, United States
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