Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Blood test for managing colorectal cancer screening

Official title: Exploratory Study of the Relevance of a Blood Test in the Management of Patients in the Context of Colorectal Cancer Screening

Run by Centre Hospitalier Universitaire de Besancon · NCT04767568 · Data updated 2026-11-12

This study is testing a blood test to see if it can help manage colorectal cancer screening for adults who have a positive test or have been diagnosed with cancer and need surgery.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment400 (estimated)
SponsorCentre Hospitalier Universitaire de Besancon
Academic / other
Locations3 sites (Besançon and 2 other locations)
StatusRecruiting
StartedMarch 30, 2021
Main results expectedAugust 2027
Study endsAugust 2032
Registry record updatedMarch 16, 2026
Trial IDNCT04767568 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include adults over 18 with suspected colorectal cancer from a positive screening test or those already diagnosed with adenocarcinoma awaiting surgery.

Probably not a fit

Patients who are minors, pregnant, or unable to comply with the study protocol will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study explores the relevance of a blood test in the management of patients undergoing colorectal cancer screening. It focuses on individuals aged 18 and older who either have a positive immunological test indicating potential colorectal cancer or have already been diagnosed with adenocarcinoma and are candidates for surgery. The study aims to improve early detection and management of colorectal cancer, especially in light of delays caused by the COVID-19 pandemic. Participants will provide blood samples, tumor tissue, and stool collections to assess the effectiveness of the blood test.

Why it matters

Potential benefit: If successful, this approach could enhance early detection of colorectal cancer, leading to timely interventions and improved patient outcomes.

How similar studies have gone: While the use of blood tests for cancer detection is an emerging field, this specific approach in colorectal cancer screening is novel and has not been extensively tested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients aged more than18 years
* Cohort A : patients with suspected colorectal cancer following a positive immunological test during screening (presence of blood detected in the stool) or with gross bleeding OR Cohort B : patients who have already performed colonoscopy (on symptoms, or because of family history, or other ...), for whom the diagnosis of adenocarcinoma was identified by pathology prior to surgery, candidates for surgery on their colorectal tumor
* Signed and dated informed consent
* Patient affiliated to or beneficiary of French social security system.

Exclusion Criteria:

* Vulnerable persons according to the law (minors, adults under protection, persons deprived of liberty ...)
* Not ability to comply with the study protocol, in the Investigator's judgment
* pregnant woman
* Patient in the period of exclusion of another study

Where it's running

  • CHU de Besançon
    Besançon, France
    Recruiting
  • Hôpital Nord-Franche-Comté
    Montbéliard, France
    Not yet recruiting
  • Centre Hospitalier Intercommunal de Haute-Saône
    Vesoul, France
    Not yet recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.