showed a trendp = 0.062
Baseline ctDNA positivity was strongly associated with poorer outcomes: patients with detectable ctDNA at M0 had significantly reduced recurrence-free survival (2-year RFS: 18% vs 60%, log-rank p = 0.010) and showed a trend toward inferior overall survival (2-year OS: 40% vs 78%, log-rank p = 0.062).