• Signatera, a ctDNA-based MRD test, demonstrates its ability to predict overall survival in resectable colorectal cancer patients, marking a significant advancement in personalized medicine.
• The GALAXY study reveals that Signatera-positive patients receiving adjuvant chemotherapy experienced a 50% reduction in the risk of death, highlighting the test's predictive value for chemotherapy benefit.
• Signatera status is identified as the most significant predictor of recurrence, outperforming standard clinicopathologic risk factors, with a notably higher hazard ratio for both DFS and OS.
• Sustained clearance of ctDNA, as indicated by Signatera, correlates with superior survival outcomes, underscoring its potential as a surrogate endpoint for long-term prognosis in CRC patients.