The purpose of this study was to evaluate the efficacy and safety of large fractionation radiotherapy in nasopharyngeal carcinoma patients, and to analyze whether Hypofractionated radiotherapy is not inferior to conventional radiotherapy.
Age 18-75 years, male or female；
Performance status ≤ 2 ;
Nasopharyngeal cancer patients diagnosed by pathology (including histology or cytology) , of nasopharyngeal non-keratonic carcinoma (differentiated or undifferentiated, whether TNM staging);
Have at least one evaluable lesion (according to Recist1.1 criteria)
Pregnant or lactating women
As determined by the investigators, there were severe comorbidities that could not tolerate or complete radiation therapy.
There are contraindications in MRI;
Second primary malignancy exists;