Natera, Inc. announced a nationwide multi-center registry study called BESPOKE CRC for patients diagnosed with Stage II-III colorectal cancer (CRC). The study's objective is to measure the clinical impact of serial blood-based testing with Signatera, Natera's personalized and tumor-informed test for molecular residual disease (MRD) assessment, earlier relapse detection, and better patient risk stratification after surgery The BESPOKE CRC study will prospectively enroll 1,000 or more patients at time of surgery. Signatera testing will be performed multiple times in the first 6 months after surgery to help inform the need for adjuvant chemotherapy, and then approximately every 3 months in the surveillance setting to detect relapse early and enable more curative interventions. Patients will be followed for up to two years, to measure treatment changes and patient outcomes. The study will begin enrollment in early 2020, and it is expected to complete in 2023.