Extranodal natural killer/T-cell lymphoma (ENKTCL), nasal type, is a rare subtype of non-Hodgkin lymphoma (NHL) with relatively high incidence in China. L-asparaginase based chemotherapy improved overall response and prolonged the long-term survival for patients with stage IV. But the optimal treatment schedule has not been established. This study is designed with four cycles MEDA chemotherapy, followed by Auto-HSCT for stage IV patients with newly onset, relapsed or refractory diseases. The efficacy and safety of this protocol in the treatment of will be measured.
The purpose of this study is to evaluate the efficacy and safety of methotrexate, etoposide, pegaspargase and dexamethasone (MEDA) chemotherapy and autologous hematopoietic stem cell transplantation (Auto-HSCT) in patients with stage IV extranodal natural killer/T-cell lymphoma, nasal type.