Allogeneic stem cell transplantation in patients with atypical chronic myeloid leukaemia: a retrospective study from the Chronic Malignancies Working Party of the European Society for Blood and Marrow Transplantation

Onida, Francesco and De Wreede, Lliesbeth C. and van Blezan, Anja and Elkema, Diderik-Jan and Byrne, Jenny L. and Iori, Anna P. and Schots, Rick and Jungova, Alexandra and Schetelig, Johannes and Finke, Juergen and Veelken, Hendrick and Johanssen, Jan-Erik and Craddock, Charles and Stellies, Matthias and Theobald, Matthias and Holler, Ernst and Schanz, Urs and Schaap, Nicolaas and Bittenbring, Joerg and Olivaria, Eduardo and Chalandan, Yves and Kroger, Nicolaus (2017) Allogeneic stem cell transplantation in patients with atypical chronic myeloid leukaemia: a retrospective study from the Chronic Malignancies Working Party of the European Society for Blood and Marrow Transplantation. British Journal of Haematology, 177 (5). pp. 759-765. ISSN 2836-9779

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Abstract

Atypical chronic myeloid leukaemia (aCML) is an aggressive malignancy for which allogeneic haematopoietic stem cell transplantation (allo-HSCT) represents the only curative option. We describe transplant outcomes in 42 patients reported to the European Society for Blood and Marrow Transplantation (EBMT) registry who underwent allo-HSCT for aCML between 1997 and 2006. Median age was 46 years. Median time from diagnosis to transplant was 7 months. Disease status was first chronic phase in 69%. Donors were human leucocyte antigen (HLA)-identical siblings in 64% and matched unrelated (MUD) in 36%. A reduced intensity conditioning was employed in 24% of patients. T-cell depletion was applied in 87% and 26% of transplants from MUD and HLA-identical siblings, respectively. According to the EBMT risk-score, 45% of patients were ‘low-risk’, 31% ‘intermediate-risk’ and 24% ‘high-risk’. Following allo-HSCT, 87% of patients achieved complete remission. At 5 years, relapse-free survival was 36% and non-relapse mortality (NRM) was 24%, while relapse occurred in 40%. Patient age and the EBMT score had an impact on overall survival. Relapse-free survival was higher in MUD than in HLA-identical sibling HSCT, with no difference in NRM. In conclusion, this study confirmed that allo-HSCT represents a valid strategy to achieve cure in a reasonable proportion of patients with aCML, with young patients with low EBMT risk score being the best candidates.

Item Type: Article
Additional Information: This is the pre-peer reviewed version of the following article:Onida, F., de Wreede, L. C., van Biezen, A., Eikema, D.-J., Byrne, J. L., Iori, A. P., Schots, R., Jungova, A., Schetelig, J., Finke, J., Veelken, H., Johansson, J.-E., Craddock, C., Stelljes, M., Theobald, M., Holler, E., Schanz, U., Schaap, N., Bittenbring, J., Olavarria, E., Chalandon, Y., Kröger, N. and the Myeloproliferative Neoplasm Subcommittee of the Chronic Malignancies Working Party (2017), Allogeneic stem cell transplantation in patients with atypical chronic myeloid leukaemia: a retrospective study from the Chronic Malignancies Working Party of the European Society for Blood and Marrow Transplantation. Br J Haematol, 177: 759–765. doi:10.1111/bjh.14619, which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1111/bjh.14619/abstract. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving
Keywords: allogeneic transplantation, atypical chronic myeloid leukaemia, Myelodyslastic/Myeloproliferative Neoplasms (MDS/MPN), Ph-negative CML:BCR-ABL1-negative
Schools/Departments: University of Nottingham, UK > Faculty of Medicine and Health Sciences > School of Medicine > Division of Cancer and Stem Cells
Identification Number: 10.1111/bjh.14619
Depositing User: Byrne, Jenny
Date Deposited: 14 Dec 2017 11:12
Last Modified: 31 Mar 2018 07:28
URI: http://eprints.nottingham.ac.uk/id/eprint/48728

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