FirstSight™ CRC Test detects and analyzes circulating tumor cells (CTCs) and is intended to predict the likelihood of having precancerous adenomatous polyps or colorectal cancer (CRC) in patients eligible for CRC screening. The FirstSight assay evaluates 3 biomarkers: circulating gastrointestinal epithelial cells, validated somatic oncogene and tumor suppressor mutations, and methylation with Septin9 of cell-free tumor DNA (cfDNA).