Haematologica (Sep 2009)

Improved outcome of patients older than 30 years receiving HLA-identical sibling hematopoietic stem cell transplantation for severe acquired aplastic anemia using fludarabine-based conditioning: a comparison with conventional conditioning regimen

  • Sébastien Maury,
  • Andrea Bacigalupo,
  • Paolo Anderlini,
  • Mahmoud Aljurf,
  • Judith Marsh,
  • Gérard Socié,
  • Rosi Oneto,
  • Jakob R. Passweg

DOI
https://doi.org/10.3324/haematol.2009.006916
Journal volume & issue
Vol. 94, no. 9

Abstract

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Older age is a limitation for HLA-identical sibling hematopoietic stem cell transplantation (HSCT) as first-line therapy for severe acquired idiopathic aplastic anemia (SAA). Fludarabine (Flu)-based conditioning might improve outcome in older patients. We analyzed retrospectively 30 patients older than 30 years receiving such reduced-intensity conditioning HSCT according to recommendations of the European Group for Blood and Marrow Transplantation (EBMT) and compared their outcome to a control group receiving the standard regimen (cyclophosphamide+/−antithymocyte globulin) over the same study period (1998–2007). Patients conditioned with Flu had a higher probability of overall survival than the control group (p=0.04) when adjusting for recipient’s age. This might be related to a trend towards a reduced incidence of graft failure in patients receiving Flu (0% vs. 11%, p=0.09), while no difference was observed regarding graft-versus-host disease incidence. Flu-based conditioning regimen may reduce the negative impact of age in older patients with SAA receiving an HLA-identical sibling HSCT.