MENLO PARK, Calif. & VANCOUVER, British Columbia--(BUSINESS WIRE)--Personalis, Inc. has announced a collaboration with BC Cancer to deploy a personalized liquid biopsy-based research use only (RUO) assay for a study of patients with colorectal and pancreatic cancers. The research efforts will deploy Personalis’ NeXT Personal, which has demonstrated high sensitivity for detecting circulating tumor DNA (ctDNA) from a patient’s blood sample, to determine the best time to draw blood for ctDNA sampling for molecular residual disease (MRD) detection. MRD describes a very small number of cancer cells that remain in the body during or after treatment.