Long-Term Prognostic Effects of Plasma Epstein-Barr Virus DNA by Minor Groove Binder-Probe Real-Time Quantitative PCR on Nasopharyngeal Carcinoma Patients Receiving Concurrent Chemoradiotherapy

Conclusion: Plasma EBV DNA is the most valuable prognostic factor for NPC. More chemotherapy should be considered for patients with persistently detectable EBV DNA after CCRT.