Stem Cell Transplantation |
1 Department of Hematology, Groupe Henri-Mondor Albert-Chenevier, Université Paris 12, Faculté de Médecine, Créteil, France
2 Department of Hematology, Azienda Ospedaliera Universitaria San Martino, Genova, Italy
3 Department of Stem Cell Transplantation and Cellular Therapy, M.D. Anderson Cancer Center, Houston, TX, USA
4 King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
5 Department of Haematological Medicine, Kings College Hospital, London, UK
6 Department of Hematology, Stem Cell Transplantation, Hôpital Saint-Louis, Paris, France
7 Department of Hematology, Geneva University Hospital, Geneva, Switzerland
Correspondence: Sébastien Maury, Service dHématologie Clinique, CHU Henri Mondor, 51 av. du Mal de Lattre de Tassigny, 94010 Créteil cedex, France. E-mail:sebastien.maury{at}hmn.aphp.fr
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 recipients 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.
Key words: aplastic anemia, stem cell transplantation, conditioning regimen, fludarabine.