Abstract
The optimal post-remission therapy (PRT) for acute myeloid leukemia (AML) remains uncertain. We reported 32 AML patients in first complete remission (CR1) undergoing autologous hematopoietic stem cell transplantation (ASCT) with a characteristic conditioning regimen, termed I-Bu, based on high-dose idarubicin plus busulfan, which considerably strengthened antileukemic activity. Most patients were in better or intermediate-risk group except that cytogenetic or molecular risk information was missing for 18.7 % of the patients. Unpurged peripheral blood stem cells were used in all the cases. The adverse effects were mild and reversible. Only one case of transplant-related mortality was observed. All the patients in this study acquired hematopoietic reconstitution after ASCT. After a median follow-up of 30 (6–119) months, 24 patients (75.0 %) were alive in which 20 (62.5 %) patients were in continuous CR. There were 11 (34.4 %) patients who relapsed after HSCT. Cumulative relapse probability was about 40 % after 24 months. Median OS and DFS have not been reached. Patients in the better and intermediate-risk group had different clinical outcomes, but the differences were not statistically significant. ASCT with I-Bu regimen is possibly promising PRT for better and intermediate-risk AML patients in CR1.
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Acknowledgments
This study was supported by the National Natural Science Foundation of China (81200362, 81070456 and 81270652), the Program for Development of Innovative Research Team in the First Affiliated Hospital of NJMU, the Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions and the Project of the National Key Clinical Specialty.
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Hong, M., Miao, KR., Zhang, R. et al. High-dose idarubicin plus busulfan as conditioning regimen to autologous stem cell transplantation: Promising post-remission therapy for acute myeloid leukemia in first complete remission?. Med Oncol 31, 980 (2014). https://doi.org/10.1007/s12032-014-0980-x
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DOI: https://doi.org/10.1007/s12032-014-0980-x