A Study Using Nivolumab, in Combination With Chemotherapy Drugs to Treat Nasopharyngeal Carcinoma (NPC)

Inclusion Criteria: * Patients must be ≤ 21 years of age at the time of study enrollment * Newly diagnosed American Joint Committee on Cancer (AJCC) stage II-IV nasopharyngeal carcinoma (NPC) * Patients must have had histologic verification of the malignancy at original diagnosis * Although submission of tumor tissue for the molecular characterization initiative is not required for eligibility, it is strongly recommended * Patients must have had histologic verification of the malignancy at original diagnosis * Although submission of tumor tissue for the molecular characterization initiative is not required for eligibility, it is strongly recommended * Patients must have a Lansky (for patients ≤ 16 years of age) or Karnofsky (for patients \> 16 years of age) performance status score of ≥ 60% * Peripheral absolute neutrophil count (ANC) ≥ 1000/uL (within 7 days prior to start of protocol therapy) * Platelet count ≥ 100,000/uL (transfusion independent) (within 7 days prior to start of protocol therapy) * Creatinine clearance or radioisotope glomerular filtration rate (GFR) ≥ 60 mL/min/1.73 m\^2 or (within 7 days prior to start of protocol therapy) * A serum creatinine based on age/sex (within 7 days prior to start of protocol therapy) Age: Maximum serum creatinine (mg/dL) 1 month to \< 6 months: 0.4 mg/dL (male); 0.4 mg/dL (female) 6 months to \< 1 year: 0.5 mg/dL (male); 0.5 mg/dL (female) 1 to \< 2 years: 0.6 mg/dL (male); 0.6 mg/dL (female) 2 to \< 6 years: 0.8 mg…