showed a trendp = 0.0775
High KRAS mut cfDNA levels (>25 copies/mL) before the start of systemic chemotherapy were inversely associated with PFS (HR = 2.07, 95% CI: 1.011–4.229, p = 0.0057; Supplemental Figure S2A ) and also showed a trend toward inferior OS (HR = 1.72, 95% CI: 0.850–3.489, p = 0.0775; Supplemental Figure S2B ).