期刊
BEST PRACTICE & RESEARCH CLINICAL HAEMATOLOGY
卷 20, 期 1, 页码 57-65出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.beha.2006.11.002
关键词
acute promyelocytic leukemia; arsenic trioxide; gemtuzumab ozogamicin; FLT-3; hematopoietic stem cell transplantation; autologous transplant; allogeneic transplant
类别
Current treatment for acute promyelocytic leukemia (APL) usually includes an induction phase OF with all-trans retinoic acid (ATRA) and anthracycline-based chemotherapy, followed by a consolidation phase of anthracycline-based chemotherapy and maintenance therapy with ATRA with or without low-dose chemotherapy for 1-2 years. This treatment strategy results in a high complete remission (CR) rate. of about 90% and an overall survival rate of 80%. About 5%-30% of patients relapse, mainly patients with high-risk APL. Relapse at extramedullary sites, which occurs in approximately 3%-5% of patients, is emerging as a new issue. Treatment of relapsed/advanced APL includes the use of arsenic trioxide (ATO), gemtuzumab ozogamicin, and hematopoietic stern cell transplantation. ATO is currently the most effective therapeutic agent in relapsed APL. Hematopoietic stem cell transplantation is becoming a common strategy after achieving remission with ATO. Autologous transplant appears to have a more favorable outcome than allogeneic transplant in this setting, particularly when carried out during second remission, primarily because of significantly higher treatment-related mortality with allogeneic transplants. Allogeneic transplant, however, should be strongly considered for patients who remain molecularly positive. Future directions for APL therapy should include developing agents that can prevent relapse, particularly for high-risk patients. Other future treatment strategies may include use of ATO administered concomitantly or sequentially with chemotherapy, gemtuzumab or FLT-3 inhibitors that may obviate the need for autologous transplantation, and posttransplant maintenance perhaps with FLT-3 inhibitors.
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