A Study of Evaluating the Safety and Efficacy of ATG-010 Combined With Chemotherapy Sequential With ATG-010 Monotherapy Maintenance in Peripheral T- and NK/T-cell Lymphoma

"• Combined with ICE chemotherapy regimen:~* Ifosfamide: 5 g/m2, continuous intravenous (iv) infusion (mesna 5 g/m2 synchronously iv infusion for rescue), on Day 2;~* Carboplatin: with concentration-area under time curve (AUC)=5 (highest concentration to 800 mg), iv infusion, on Day 2;~* Etoposide l00 mg/m2, iv infusion, on Days 1-3;~* ATG-010 60 mg/once, oral, on Days 4 and 11. After the treatment with combination chemotherapy, the patients will continue to receive maintenance treatment of ATG-010 60 mg/once per week (QW)."

"• Combined with GEMOX chemotherapy regimen:~* Gemcitabine 1000 mg/m2, iv infusion, on Days 1 and 8;~* Oxaliplatin 130 mg/m2, iv infusion, on Day 1;~* ATG-010 60 mg/once, oral, on Days 2 and 9. After the treatment with combination chemotherapy, the patients will continue to receive maintenance treatment of ATG-010 60 mg/once per week (QW)."

Tislelizumab will be administered intravenously at a fixed dose of 2 0 0 mg every 3 weeks on Day 1 of each cycle