Multi-institutional prospective study of nedaplatin plus S-1 chemotherapy in recurrent and metastatic nasopharyngeal carcinoma patients after failure of platinum-containing regimens

In this multi-institutional prospective study, we aimed to assess the safety and efficacy of nedaplatin plus S-1 (NS) chemotherapy for patients with recurrent and metastatic nasopharyngeal carcinoma (NPC) when platinum-containing regimens failed