Journal
BLOOD
Volume 103, Issue 11, Pages 4056-4061Publisher
AMER SOC HEMATOLOGY
DOI: 10.1182/blood-2003-12-4435
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We investigated in a retrospective multicenter study the impact of chromosome arm 13q deletion (13q-) as detected by fluorescence in situ hybridization (FISH) on outcome after dose-reduced allografting in patients with multiple myeloma. In 68 of 140 patients, data on chromosome 13q status were available. Most patients included had advanced myeloma. At 2 years, patients with 13q deletion (n = 31) had a shorter eventfree (18% vs 42%; P = .05) and overall survival (118% vs 67%; P = .03) than patients without 13q- (n = 37). Patients with 13q- experienced a higher relapse rate (77% vs 44%; P < .001) but a similar incidence of transplantation-related mortality at one year (24% vs 18%). In a multivariate analysis, 13q- remained a significant risk factor for a higher relapse rate (hazard ratio [HR], 3.28; 95% confidence interval [CI], 1.31-8.24; P = .01) and a shorter event-free survival (HR, 1.94; 95% CI, 1.03-3.67; P = .04). Concerning overall survival, 2 or more cycles of prior high-dose chemotherapy were associated with a significantly higher probability of death (HR, 2.48; 95% Ci, 1.19-5.17; P = .02), while patients with deletion 13q had a nearly 2 times higher risk of death (HR, 1.94; 95% CI, 0.95-3.98; P = .07) after dose-reduced allogeneic stem cell transplantation. (C) 2004 by The American Society of Hematology
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