In this study, the investigators aim to compare the survival outcomes and side effects of radiotherapy (RT) and concurrent chemoradiotherapy (CCRT) in locoregionally advanced nasopharyngeal carcinoma (NPC) patients with a satisfactory tumor response (complete response or partial response) after neoadjuvant chemotherapy (NACT) with Docetaxel and Cisplatin treated using intensity-modulated radiotherapy (IMRT) or tomotherapy (TOMO).
In this study, the investigators aim to compare the progression-free survival (PFS) and side effects of radiotherapy (RT) and concurrent chemoradiotherapy (CCRT) in locoregionally advanced nasopharyngeal carcinoma (NPC) patients with a satisfactory tumor response (complete response or partial response) after neoadjuvant chemotherapy (NACT).