Frontiers in Medicine
Treatment and clinical outcomes among stage II–IVA nasopharyngeal carcinoma patients with undetectable pretreatment Epstein-Barr viral DNA
Background This study analyzed the efficacy of multiple combined chemotherapy modalities on the long-term survival outcomes in stage II–IVA nasopharyngeal carcinoma (NPC) patients with undetectable pretreatment Epstein-Barr viral DNA (pre-DNA). Patients and methods We retrospectively analyzed 2,440 patients with stage II–IVA NPC with undetectable pre-DNA. Patients received any of the following treatment modalities: intensity-modulated radiotherapy (IMRT) alone; concurrent chemoradiotherapy (CCRT); induction chemoth …