Study: NCT04589741

Intervention type: DRUG
Group type: PLACEBO_COMPARATOR
Intervention: Toripalimab Combined With CAV/IE chemotherapy
Description: CAV/IE regimen alternate chemotherapy (regimen 1: CTX 1.2mg/m2 D1 + ADM 50mg/m2 D1 + VCR 1.4mg/m2 D1 and scheme 2: IFO 1.5g/m2 D1-5 + vp-16 90mg / m2 D1-5, IV drip). Regimen 1 and 2 were performed alternately, with a cycle of 3 weeks;~The patients were treated with toripalimab (240mg, 6ml) intravenously every 3 weeks;~If doxorubicin has reached the upper limit or reduced cardiac toxicity, liposome adriamycin (50mg/m2) or IE regimen can be used~After 6 courses of treatment, patients with disease control (CR + PR + SD) and tolerable adverse reactions were treated continuously. The study was completed when the researchers considered that the patients were not suitable for continuous medication or the efficacy evaluation was disease progression (PD). No other anti-tumor treatment can be carried out during the treatment.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Toripalimab Combined With CAV/IE chemotherapy
Description: CAV/IE regimen alternate chemotherapy (regimen 1: CTX 1.2mg/m2 D1 + ADM 50mg/m2 D1 + VCR 1.4mg/m2 D1 and scheme 2: IFO 1.5g/m2 D1-5 + vp-16 90mg / m2 D1-5, IV drip). Regimen 1 and 2 were performed alternately, with a cycle of 3 weeks;~The patients were treated with toripalimab (240mg, 6ml) intravenously every 3 weeks;~If doxorubicin has reached the upper limit or reduced cardiac toxicity, liposome adriamycin (50mg/m2) or IE regimen can be used~After 6 courses of treatment, patients with disease control (CR + PR + SD) and tolerable adverse reactions were treated continuously. The study was completed when the researchers considered that the patients were not suitable for continuous medication or the efficacy evaluation was disease progression (PD). No other anti-tumor treatment can be carried out during the treatment.

Intervention type: DRUG
Group type: PLACEBO_COMPARATOR
Intervention: CAV/IE alternate chemotherapy
Description: CAV/IE alternate chemotherapy (regimen1: CTX 1.2mg/m2 D1 + ADM 50mg/m2 D1 + VCR 1.4mg/m2 D1 and regimen2: IFO 1.5g/m2 D1-5 + VP-16 90mg/m2 D1-5, IV drip), regimen 1 and 2 were performed alternately, with a cycle of 3 weeks.~Patiens with disease control (CR+PR+SD) and tolerable adverse reactions were treated continuously with a maximum of 8-10 cycles. If doxorubicin has reached the upper limit or reduced cardiac toxicity, liposome adriamycin (≥ 60 years old: 35mg/m2, \< 60 year old: 40mg/m2) or IE regimen can be used. The study was completed when the researchers considered that the patients were not suitable for continuous medication or the efficacy evaluation was disease progression (PD). No other anti-tumor treatment can be carried out during the treatment.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: CAV/IE alternate chemotherapy
Description: CAV/IE alternate chemotherapy (regimen1: CTX 1.2mg/m2 D1 + ADM 50mg/m2 D1 + VCR 1.4mg/m2 D1 and regimen2: IFO 1.5g/m2 D1-5 + VP-16 90mg/m2 D1-5, IV drip), regimen 1 and 2 were performed alternately, with a cycle of 3 weeks.~Patiens with disease control (CR+PR+SD) and tolerable adverse reactions were treated continuously with a maximum of 8-10 cycles. If doxorubicin has reached the upper limit or reduced cardiac toxicity, liposome adriamycin (≥ 60 years old: 35mg/m2, \< 60 year old: 40mg/m2) or IE regimen can be used. The study was completed when the researchers considered that the patients were not suitable for continuous medication or the efficacy evaluation was disease progression (PD). No other anti-tumor treatment can be carried out during the treatment.