State-of-the-Art Colorectal Cancer and Advanced Precancerous Lesion Screening: a Multitarget Stool DNA Test

Area of Science:

• Oncology
• Gastroenterology
• Molecular Diagnostics

Background:

• Colorectal cancer (CRC) is a leading cause of cancer death globally, with 900,000 annual fatalities.
• Colonoscopy, while effective, suffers from low patient adherence, hindering widespread CRC screening.
• There is a critical need for convenient screening methods to detect advanced precancerous lesions (APL) and CRC early.

Purpose of the Study:

• To evaluate the clinical performance of a novel multitarget stool DNA (mt-sDNA) test for non-invasive CRC and APL detection.
• To assess the sensitivity and specificity of the mt-sDNA test in a clinical cohort.
• To determine the test's potential to improve CRC prevention strategies.

Main Methods:

• A cohort of 208 subjects was enrolled to assess the clinical performance of the mt-sDNA test.
• The mt-sDNA test combines a fecal immunochemical test (FIT) with real-time PCR analysis of genetic biomarkers.
• The study evaluated the test's sensitivity and specificity for detecting CRC and APL.

Main Results:

• The mt-sDNA test demonstrated 84.2% sensitivity for CRC (all stages) and 91.5% specificity.
• The test achieved 39.6% sensitivity for detecting APL, including 75% sensitivity for high-grade dysplasia.
• These results indicate the test's capability in identifying precancerous conditions.

Conclusions:

• The multitarget stool DNA (mt-sDNA) test represents a significant advancement in the non-invasive detection of APL and CRC.
• This innovative test holds substantial potential for enhancing CRC prevention efforts.
• The findings suggest the mt-sDNA test could play a crucial role in reducing CRC incidence and mortality.