Maintenance Therapy With Toripalimab Combined With Capecitabine Versus Maintenancetherapy With Capecitabine Alone in High-risk Nasopharyngeal Carcinoma: a Multicenter, Prospective, Randomized Phase III Clinical Trial (NPC-ICMB)
N3 classification, rENE positivity is a high-risk type of locally advanced nasopharyngeal carcinoma. EBV DNA remaining at detectable levels after induction chemotherapy is also a characteristic of high-risk nasopharyngeal carcinoma. Based on the available evidence, patients with high-risk nasopharyngeal carcinoma are recommended to receive oral maintenance therapy to reduce the risk of failure. The purpose of this study was to conduct a prospective, multicenter, randomized phase III clinical trial to determine whether maintenance therapy with triprilimab combined with capecitabine is better than maintenance therapy with capecitabine alone in high-risk nasopharyngeal carcinoma (N3+, rENE+, Detectable EBV DNA after 2 cycles of induction chemotherapy).
⁃ Pathologically confirmed nasopharyngeal carcinoma;
⁃ High-risk nasopharyngeal cancer meets one of three points: a. TanyN3M0; b. High-grade rENE, coalescent nodal or invasion of surrounding structures (muscle, skin, nerves, etc.); c. Detectable EBV DNA after 2 cycles of induction chemotherapy.
• 18-70 years old, both genders; 4. ECOG≤1; 5. Received 2-3 cycles of induction chemotherapy and concurrent chemoradiotherapy (intensity-modulated radiotherapy); 6. Patients must have adequate organ function (without blood transfusion, without growth factor or blood components support within 14 days before enrollment) as determined by: Absolute neutrophil count (ANC) ≥1.5×109/L; Platelet count ≥ 75×109/L; Hemoglobin ≥ 9 g/dL; serum total bilirubin (TBIL) ≤1.5 times the upper limit of normal (ULN); alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤2.5×upper limit of normal (ULN), (for subjects with liver metastases, TBIL ≤3×ULN; ALT and AST≤5×ULN); Creatinine ≤1.5×ULN or creatinine clearance rate≥50 ml/min (Cockcroft-Gault formula); serum albumin ≥28 g/L.
‣ 7\. All women with fertility potential must undergo a urine or serum pregnancy test during screening and the results are negative; 8. Written informed consent;