Kaplan-Meier curve for OS in FOCUS4-N. Cox regression HR, adjusted for minimization factors = 0.93 (95% CI, 0.69 to 1.27), P = .66. Minimization factors: location of primary tumor (left, right, and rectum); baseline WHO performance status; baseline disease assessment; No. of metastases; first-line therapy (fluoropyrimidine, oxaliplatin or irinotecan, and monoclonal antibody); and biomarker cohort, stratified for FOCUS4 trial timepoints. AM, active monitoring; HR, hazard ratio; OS, overall survival.