Screening With a DNA Blood Test to Address Colorectal Cancer Inequities

"The intervention is a novel blood test that evaluates circulating cell free tumor DNA (cfDNA) and detects colorectal cancer (CRC). Recently, the cfDNA test has been shown to have 83% sensitivity and 90% specificity for CRC detection, and 13% sensitivity for advanced polyp detection, heralding a new screening strategy postulated to be highly convenient and acceptable. The cfDNA test is made by Guardant Health, FDA approved for average risk colorectal cancer screening, and marketed with the brand name Shield. Patients opting for the cfDNA test will also be requested to complete an at home FIT."

The usual care group will be offered standard colorectal cancer screening options to choose from: at home FIT or colonoscopy.