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aged between 18 and 70 years; Eastern Cooperative Oncology Group performance score of 0-1; adequate hematologic function (neutrophil count ≥ 1.5 × 10\\^9\u002FL, platelet count ≥100×109\u002FL, and hemoglobin≥ 90 g\u002FL); adequate renal function (creatinine ≤ 1.5 upper limit of normal \\[ULN\\]) or calculated creatinine clearance (CrCl) ≥ 60 mL\u002Fmin (Cockcroft-Gault formula); and adequate hepatic function (serum bilirubin ≤ 2.0×ULN, and alanine aminotransferase and aspartate aminotransferase ≤ 2.5×ULN).\n\nExclusion Criteria:\n\nPrevious chemotherapy treatment, surgery (except diagnostic) or radiotherapy to the neck or nasopharyngeal regions; previous malignancy (except for cured basal cell carcinoma or carcinoma in situ of the cervix); lactation or pregnancy; or severe coexisting illness.\n\n\\-","ALL","18 Years","70 Years",{"count":148,"type":149},700,"ESTIMATED","INTERVENTIONAL",[152],"PHASE3","To evaluate the locoregional control, survival rate, toxicity, and quality of life in patients with nasopharyngeal carcinoma treated with reduced prophylactic irradiation doses to the Low-Risk Clinical Target Volume (CTV).",[155],"Nasopharyngeal Cancinoma (NPC)",[157,158,159],"Nasopharyngeal Carcinoma","De-escalation","Radiotherapy","2026-03-31",{"date":162,"type":163},"2026-04-06","ACTUAL",{"date":165,"type":163},"2025-11-17",{"date":167,"type":149},"2031-11-17",{"name":5,"class":6},6]