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High-dose melphalan with or without stem cell support before myeloablative allo-SCT for remission induction in patients with advanced relapsed or refractory AML.
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
High-dose melphalan with or without stem cell support before myeloablative allo-SCT for remission induction in patients with advanced relapsed or refractory AML.
Journal
Bone marrow transplantation
Volume
46
Number
5
Pages / Article-Number
636-40
Keywords
AML, melphalan, auto-SCT, allo-SCT
Abstract
Treatment strategies for relapsed/refractory AML are limited and disappointing. Recently, high-dose melphalan (HDM) chemotherapy and autologous hematopoietic SCT (HSCT) has been proposed for AML re-induction. We investigated the impact of HDM remission induction in highly advanced relapsed/refractory AML patients planned for allogeneic HSCT. A total of 23 patients with relapsed/refractory AML were prospectively scheduled for HDM with or without stem cell support followed by myeloablative allogeneic HSCT. Patients included nine individuals with a history of previous HSCT (seven allogeneic, two autologous). A total of 18 patients (78%) achieved a leukemia-free state and an additional four had substantial reduction of the initial leukemia burden warranting treatment continuation. There were no differences between patients with or without immediate stem cell support regarding mucositis or other organ toxicity. A total of 20 patients proceeded to myeloablative allogeneic HSCT. Outcome of allogeneic HSCT was poor: 11 patients (55%) relapsed, 7 patients (35%) died from TRM and only 2 patients (10%) were alive at the last follow-up. Our study shows that HDM is effective in inducing a leukemia-free state in patients with highly advanced relapsed/refractory AML. Leukemia burden reduction with HDM, however, did not translate into improved OS.
