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J Clin Oncol. 2011 Apr 1;29(10):1342-8. doi: 10.1200/JCO.2010.30.2596. Epub 2011 Feb 14.

Allogeneic stem-cell transplantation as salvage therapy for patients with diffuse large B-cell non-Hodgkin's lymphoma relapsing after an autologous stem-cell transplantation: an analysis of the European Group for Blood and Marrow Transplantation Registry.

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1
Hôpital Pitié Salpetrière, Paris, France.

Abstract

PURPOSE:

To analyze the outcome, including nonrelapse mortality (NRM), relapse rate (RR), progression-free survival (PFS), and overall survival (OS), of patients with diffuse large B-cell non-Hodgkin's lymphoma (DLBCL) relapsed after an autologous stem-cell transplantation (ASCT) and treated with an allogeneic stem-cell transplantation (allo-SCT).

PATIENTS AND METHODS:

The European Group for Blood and Marrow Transplantation database was scanned for a first allo-SCT in relapsed DLBCL after a previous ASCT between 1997 and 2006. Other inclusion criteria were age at allo-SCT ≥ 18 years and availability of an HLA-identical sibling or a matched unrelated donor. A total of 101 patients (57 males; median age, 46 years) were included. Median follow-up for survivors was 36 months.

RESULTS:

Myeloablative conditioning regimen was used in 37 patients and reduced intensity conditioning (RIC) was used in 64 patients. Three-year NRM was 28.2% (95% CI, 20% to 39%), RR was 30.1% (95% CI, 22% to 41%), PFS was 41.7% (95% CI, 32% to 52%), and OS was 53.8% (95% CI, 44% to 64%). NRM was significantly increased in patients ≥ 45 years (P = .01) and in those with an early relapse (< 12 months) after ASCT (P = .01). RR was significantly higher in refractory patients (P = .03). A time interval to relapse after ASCT of < 12 months was associated with lower PFS (P = .03). The use of RIC regimens was followed by a trend to a lower NRM (P = .1) and a trend to a higher RR (P = .1), with no differences in PFS and OS. No differences were seen between HLA-identical siblings and matched unrelated donors.

CONCLUSION:

Allo-SCT in relapsed DLBCL after ASCT is a promising therapeutic modality. Patients with a long remission after ASCT and with sensitive disease at allo-SCT are the best candidates for this approach.

PMID:
21321299
DOI:
10.1200/JCO.2010.30.2596
[Indexed for MEDLINE]

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