Personalis Highlights Early Colorectal Cancer Recurrence Detection and Ultrasensitive MRD Performance Across a Broad Set of Tumor Types at ASCO 2026

NeXT Personal® MRD test showed 100% sensitivity for CRC recurrence during surveillance and 82% landmark sensitivity 4 weeks post-surgery

Ultrasensitive NeXT Personal performance was demonstrated across 6 different solid tumor types

Personalis, Inc. (Nasdaq: PSNL) today announced clinical data from the 2026 American Society of Clinical Oncology (ASCO) Annual Meeting establishing the clinical importance of ultrasensitive MRD detection across six solid tumor types, led by the VICTORI colorectal cancer and TRACERx lung cancer studies.

“Our ASCO data continues to build on a compelling body of evidence, including recent landmark publications, that show ultrasensitive MRD detection with NeXT Personal enables early detection of patients at risk for relapse, across a broad set of solid tumor types,” said Richard Chen, MD, MS, President and Chief Medical Officer of Personalis. “These data, along with our recent Medicare approvals, further our mission to provide cancer patients with the precision MRD testing they need to help guide clinical management.”