Guardant Health Inc. has announced the publication of results from the largest study to date evaluating circulating tumor DNA (ctDNA) for molecular residual disease (MRD) detection in patients with resected stage III colon cancer. The study, conducted in collaboration with Mayo Clinic and the Alliance for Clinical Trials in Oncology, was published in the Journal of Clinical Oncology. Findings indicate that the Guardant Reveal blood test more precisely identifies the risk of cancer recurrence and overall survival compared to standard staging methods. The data support the routine use of ctDNA testing in the management of stage III colon cancer patients, providing clinicians with actionable insights for post-surgical treatment decisions.

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