Study: NCT03529279

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: CNG Chemotherapy
Description: CNG I, IMRT plus oral adjuvant chemotherapy, if EBV-DNA \> 0,according to CNG II. CNG II, IMRT + concurrent chemotherapy + oral adjuvant chemotherapy. CNG III, systemic chemotherapy, plus IMRT.~Chemotherapy strategy: Concurrent chemotherapy, 5-Fu + nedaplatin (cisplatin), every 28 days; 5-Fu 500mg/m2. D, civ d1-d5, nedaplatin (cisplatin) 80mg (70mg) /m2. D, D1. Systemic chemotherapy, 5-Fu + nedaplatin (cisplatin), every 60 days; 5-Fu (100 - 200 mg/m2. D) civ for 30 days, nedaplatin (cisplatin) 80mg (70mg) /m2. D, D1,D28. Aim to achieve CR in imaging.Oral adjuvant chemotherapy, tegafon (400 mg, QID) and Calcium Folinate Tablets (30 mg, QID). Oral 10 days and stop 20 days, 3 months/course. After 6 courses, oral 10 days and stop 50 days, half year/course, 6-7 courses, lasted for 5 years.

Intervention type: DRUG
Group type: ACTIVE_COMPARATOR
Intervention: NCCN Chemotherapy
Description: UICC I, IMRT. UICC II-IVA, concurrent chemoradiotherapy ± adjuvant chemotherapy, or induced chemotherapy plus concurrent chemoradiotherapy. UICC IVB, platinum based combined chemotherapy, followed by IMRT or concurrent chemoradiotherapy, or concurrent chemoradiotherapy.~Chemotherapy strategy: Concurrent cisplatin with or without cisplatin plus 5-Fu or carboplatin combined with 5-Fu adjuvant chemotherapy; The combined chemotherapy regimen of IVB stage patients may choose cisplatin or carboplatin plus docetaxel or paclitaxel, cisplatin plus 5-Fu, carboplatin and cetuximab, cisplatin plus gemcitabine, and gemcitabine. The combination of vinorelbine and cisplatin, carboplatin, paclitaxel, docetaxel, 5-Fu, methotrexate, gemcitabine and capecitabine can be used in combination with radiotherapy.

Intervention type: RADIATION
Group type: EXPERIMENTAL
Intervention: CNG Radiation
Description: IMRT technique. GTV was given to 6810cGy, CTV1 was given to 6000cGy, and CTV2 was given to 4800-5400cGy. 30 fractions, daily, QW1-5.~CT-SIM or MR-CIM was evaluated every 10 fractions. If CR for CNG I and II patients at 10 fractions, radiotherapy were given 25 fractions, that was, GTV was given to 5675cGy, CTV1 was given 5000cGy, and CTV2 was given 4000-4500cGy, 25 fractions, daily, QW1-5.~If tumor reduced less than 50% at 20 fractions, GTV was modified according to tumor size at 20 fractions. The modified GTV was given 300cGy/F×5 after 25 fractions; the original CTV1 and CTV2 were unchanged, that is, GTV was given to 5675cGy/25Fr+1500cGy/5Fr and CTV1 was given to 6000cGy/30Fr, CTV2 was given 4800-5400cGy/30Fr.

Intervention type: RADIATION
Group type: ACTIVE_COMPARATOR
Intervention: NCCN Radiation
Description: IMRT technique. When IMRT alone, GTV were given (1) 66Gy (2.2Gy/Fr) to 70-70.2 Gy (1.8-2.0 Gy/Fr), QW1-5, 6-7 weeks; (2) 69.96 Gy (2.12 Gy/Fr), 6-7 weeks; CTV1-2 were given 44-50 (2.0 Gy/Fr) to 54-63 (1.8 Gy/Fr).~When combined with chemotherapy, GTV were given 70-70.2 Gy (1.8-2.0 Gy/Fr), QW1-5, 7 weeks; CTV1-2 were given 44-50 Gy (2 Gy/Fr) to 54-63 Gy (1.8 Gy/Fr).~When palliative radiotherapy, 50Gy/20Fr; 37.5 Gy/15Fr (if tolerable, increases 5 fractions to 50Gy); 30Gy/10Fr, 30Gy/5Fr, 2 fractions per week, interval more than 3 days; 44.4Gy/12Fr was divided into 3 cycles, 2 fractions a day, 6 hours of interval, 2 consecutive days and 3-4 weeks between two cycles. After second cycles, the treatment plan must completely avoid the irradiation of the spinal cord.