摘要
Objective To explore the efficacy and safety of high-dose methotrexate (MTX) and L-asparaginase (L-Asp) for the treatment of adult patients with high risk Ph acute lymphoblastic leukemia (ALL).Methods Five adult patients with high risk Ph-ALL were treated with several courses of MTX (3-5 g/m2 by continually intravenous drip for 24 h) and L-Asp (8 000-10 000 U/time, once a day, 10 times for one cycle).Results Five patients were disease-free survival, their survival time was 60-96 months and the median survival time was 73 months.The chemotherapy-related bone marrow depression was mild.No obvious liver and kidney damage, severe allergic reaction and pancreatitis were observed.Conclusion Highdose MTX and L-Asp are effective and well tolerated, and may contribute to long-term survival of adult patients with high risk Ph-ALL.