Clinical trials

This clinical trial intends to analyze the efficacy of PD-1 inhibitor combined with radiotherapy for newly diagnosed NK/T-cell lymphoma. The investigational product in this clinical trial is tislelizumab, a PD-1 inhibitor. As a rationale for using PD-1 inhibitors in patients with NK/T-cell lymphoma, their efficacy has been proved several times mostly in patients with relapsed NK/T-cell lymphoma. Patients with low-stage NK/T-cell lymphoma usually receive high-concentration cytotoxic chemotherapy combined with radiotherapy, with treatment response rates of approximately 60 to 80%, but 80-90% of them experience hematological and non-hematologic toxicities during treatment. Therefore, this study intends to determine the efficacy and safety of PD-1 inhibitor(Tislelizumab) combined with radiotherapy as a first-line therapy compared with pre-existing cytotoxic chemotherapy combined with radiotherapy in patients with NK/T-cell lymphoma with low stage and International Prognostic Index.

Induction treatment (every 3 weeks, total 6 cycles) * Azacitidine D-2, -1, 1 (level 1: 50mg/m2, level 2: 75mg/m2, level 3: 100mg/m2, level 4: 125mg/m2) * Cyclophosphamide 750mg/m2 d1 * Doxorubicin 50 mg/m2 d1 * Vincristine 1.4 mg/m2 (Max: 2 mg) d1 * Prednisolone 100mg PO d1-5 Maintenance treatment (every 4 weeks, total 12 cycles) * Azacitidine 75mg/m2 d1-5