Figure 3.Kaplan–Meier PFS (A), OS (B), LRFS (C), and DMFS (D) curves for the subgroup of 370 NPC patients with undetectable EBV DNA level after induction chemotherapy stratified by CCD < 160 mg/m2, and CCD ≥ 160 mg/m2. Abbreviations: PFS = progression-free survival; OS = overall survival; LRFS = local-regional relapse-free survival; DMFS = distant metastasis-free survival; NPC, nasopharyngeal carcinoma; CCD = cumulative cisplatin dose.