Early diagnosis of colorectal cancer using blood tests

Evaluation of a Model for the Early Diagnosis of Colorectal Cancer by the Detection of 5-hydroxymethylcytosine (5-hmC) in Plasma Cell-free DNA to the Community Colorectal Cancer Screening Program in Xuhui District, Shanghai

Observational Fudan University · NCT05638243

This study is testing a new blood test to see if it can help find colorectal cancer earlier in people aged 50 to 75 who have already had a positive screening result.

Quick facts

Study typeObservational
Enrollment10000 (estimated)
Ages50 Years to 75 Years
SexAll
SponsorFudan University Academic / other
Locations1 site (Shanghai, Shanghai)
Trial IDNCT05638243 on ClinicalTrials.gov

What this trial studies

This study evaluates a new method for early detection of colorectal cancer by analyzing 5-hydroxymethylcytosine (5-hmC) in plasma cell-free DNA. It targets individuals aged 50 to 75 who have shown positive results in initial colorectal cancer screening tests. The approach aims to improve screening compliance and efficiency in a community setting, particularly in Shanghai, where traditional methods have low participation rates. Participants will provide blood samples for analysis after signing informed consent.

Who should consider this trial

Good fit: Ideal candidates are individuals aged 50 to 75 with positive initial screening results for colorectal cancer.

Not a fit: Patients with a history of colorectal cancer or adenomas will not benefit from this study.

Why it matters

Potential benefit: If successful, this method could significantly enhance early detection of colorectal cancer, leading to better patient outcomes.

How similar studies have performed: Other studies have shown promise in using DNA methylation for cancer detection, suggesting potential success for this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age ≥ 50 years old and\<75 years old;

  * The initial screening was positive (fecal occult blood or colorectal cancer risk questionnaire was positive); ③ Receive sample collection; ④ Sign the informed consent form.

Exclusion Criteria:

① History of colorectal cancer, colorectal adenoma, and treatment;

* Enteroscopy was performed after the initial screening was positive; ③ The subject or family members could not understand the conditions and objectives of the study or refused to participate in the study.

Where this trial is running

Shanghai, Shanghai

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Colorectal CancerColorectal Neoplasms
Last reviewed 2026-06-13 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.