4-week Serial FIT Analysis in Patients With CRC

Assimilation of FIT into primary and secondary care diagnostic pathways will lead to an increased prominence of the investigation in the diagnosis of colorectal cancer (CRC). Questions remain about whether serial FIT analysis improves accuracy, and what factors affect it.
Our study will analyse FIT results in recently diagnosed CRC patients to determine the risk of a false-negative FIT result and evaluate whether repeated analysis improves diagnostic accuracy. The study aims to advise on whether there is an optimal interval between sample collection to improve diagnostic accuracy and whether any patients are at risk of a false negative based on demographics, medications or other pathological factors.