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Allogeneic hematopoietic stem-cell transplantation for myeloid sarcoma: a retrospective study from the SFGM-TC.
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Edité par CCSD ; American Society of Clinical Oncology -
International audience. PURPOSE: This retrospective multicenter study assessed the outcome of 51 patients with myeloid sarcoma (MS) who underwent allogeneic hematopoietic stem-cell transplantation (alloHSCT). PATIENTS AND METHODS: Most patients had MS presenting in conjunction with acute myeloid leukemia (AML) or after AML. Six patients had isolated MS. The median time between diagnosis and alloHSCT was 8 months (range, 2.8 to 67). Forty patients were in complete remission (CR) at time of alloHSCT. RESULTS: With a median follow-up of 33 (range, 1 to 182) months, the Kaplan-Meier estimates of overall survival (OS) and disease-free survival were 47% (95% CI, 33% to 61%) and 36% (95% CI, 24% to 50%) at 5 years. Twenty patients (39%) relapsed at a median of 204 (range, 35 to 1151) days after alloHSCT, with relapse being the major cause of death. In a Cox multivariate analysis, age > or = 15 years and remission status at time of alloHSCT (CR v other) were associated with improved OS (hazard ratio [HR], 0.27; 95% CI, 0.12 to 0.65; P = .003; and HR, 0.22; 95% CI, 0.08 to 0.57; P = .002, respectively). CONCLUSION: We conclude that first-line alloHSCT performed early in the course of MS is a valid therapeutic option.
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