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Title: Karyotype at diagnosis is the major prognostic factor predicting relapse-free survival for patients with Philadelphia chromosome-positive acute lymphoblastic leukemia treated with imatinib-combined chemotherapy. Author: Yanada M, Takeuchi J, Sugiura I, Akiyama H, Usui N, Yagasaki F, Nishii K, Ueda Y, Takeuchi M, Miyawaki S, Maruta A, Narimatsu H, Miyazaki Y, Ohtake S, Jinnai I, Matsuo K, Naoe T, Ohno R, Japan Adult Leukemia Study Group. Journal: Haematologica; 2008 Feb; 93(2):287-90. PubMed ID: 18223280. Abstract: To identify factors associated with relapse-free survival (RFS), 80 patients with newly diagnosed Philadelphia chromosome-positive acute lymphoblastic leukemia, enrolled in a phase II study of imatinib-combined chemotherapy, were analyzed. The median follow-up of surviving patients was 26.7 months (maximum, 52.5 months). Twenty-eight out of 77 patients who had achieved CR relapsed. The probability of RFS was 50.5% at 2 years. Multivariate analysis revealed that the presence of secondary chromosome aberrations in addition to t(9;22) at diagnosis constitute an independent predictive value for RFS (p=0.027), and increase the risk of treatment failure by 2.8-fold.[Abstract] [Full Text] [Related] [New Search]