RecruitingPhase 2Drug trialConsolidation Nivolumab After Concurrent Chemoradiotherapy in Locally Advanced Nasopharyngeal CarcinomaThe clinical efficacy of nivolumab for locally advanced nasopharyngeal carcinoma patients with residual disease after standard chemoradiotherapy is not known. In this study, we aim to investigate the role of nivolumab in locally advanced NPC after chemoradiotherapy the safety profile and antitumor activity of the anti-programmed death 1 (PD-1) receptor monoclonal antibody, nivolumab after in patients with advanced nasopharyngeal carcinoma