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Mobilized peripheral blood stem cells compared with bone marrow from HLA-identical siblings for reduced-intensity conditioning transplantation in acute myeloid leukemia in complete remission: a retrospective analysis from the Acute Leukemia Working Party of EBMT

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  • Arnon Nagler
  • Myriam Labopin
  • Avichai Shimoni
  • Ghulam J Mufti
  • Jan J Cornelissen
  • Didier Blaise
  • Jeroen J W M Janssen
  • Noel Milpied
  • Lars Vindelov
  • Eefke Petersen
  • John Gribben
  • Andrea Bacigalupo
  • Claes Malm
  • Dietger Niederwieser
  • Gerard J Socié
  • Renate Arnold
  • Paul Brown
  • Hakan Goker
  • Vanderson Rocha
  • Mohamad Mohty
  • ALWP-EBMT
Vis graf over relationer
Reduced-intensity conditioning (RIC)-alloSCT is increasingly used for acute myelogenous leukemia. Limited data are available for the comparison of peripheral blood stem cells with bone marrow for RIC-alloSCT. We used the European Group for Blood and Marrow Transplantation (EBMT) ALWP data to compare the outcome of mobilized peripheral blood stem cells (PBSC) (n = 1430) vs. bone marrow (BM) (n = 107) for acute myelogenous leukemia (AML) patients with complete remission that underwent RIC-alloSCT from compatible sibling donors. The leukemia features, the disease status, and the time from diagnosis were similar between the two groups. Engraftment was achieved in 99% and 93% in the PBSC and BM groups, respectively (P <0.0001). The day of engraftment was significantly earlier for the PBSC vs. the BM group, 15 (1-59) and 19 (5-69), respectively (P <0.001). Acute GVHD, severe GVHD (grade III-IV) and chronic GVHD did not differ between the groups. leukemia-free survival (LFS), relapse, and non-relapsed mortality (NRM) were 51 ± 2%, 32 ± 1%, and 17 ± 1% vs. 50 ± 6%, 38 ± 6%, and 12 ± 3% for the PBSC and BM groups, respectively. Our results indicate faster engraftment, but no difference in GVHD, LFS, relapse, and NRM when comparing PBSC to BM grafts from sibling donors following RIC conditioning. This is the first study comparing PBSC to BM grafts in the RIC setting, analyzing a homogeneous population of patients with AML in remission. Whether PBSC should be preferred for advanced phases of the disease, where the outcome is dominated by relapse incidences, needs further investigation.
OriginalsprogEngelsk
TidsskriftEuropean Journal of Haematology
Vol/bind89
Udgave nummer3
Sider (fra-til)206-13
Antal sider8
ISSN0902-4441
DOI
StatusUdgivet - 2012

ID: 36546103