Efficacy and safety of dasatinib in imatinib-resistant or -intolerant patients with chronic myeloid leukemia in blast phase 48th Annual Meeting of the American-Society-of-Hematology Cortes, J., Kim, D., Raffoux, E., Martinelli, G., Ritchie, E., Roy, L., Coutre, S., Corm, S., Hamerschlak, N., Tang, J., Hochhaus, A., Khoury, H. J., Bruemmendorf, T. H., Michallet, M., Rege-Cambrin, G., Gambacorti-Passerini, C., Radich, J. P., Ernst, T., Zhu, C., Van Tornout, J. M., Talpaz, M. NATURE PUBLISHING GROUP. 2008: 2176–83

Abstract

Dasatinib is an inhibitor of BCR-ABL and SRC-family kinases for patients with imatinib-resistant or -intolerant chronic myelogenous leukemia (CML). In this international phase II trial, dasatinib was administered orally (70 mg twice daily) to patients with myeloid blast phase (MBP, n=109) or lymphoid blast phase (LBP, n=48) CML. After a minimum follow-up of 12 months (range 0.03-20.7 months), major hematologic responses were induced in 34% (MBP-CML) and 35% (LBP-CML) of patients. Major cytogenetic responses were attained in 33% (MBP-CML) and 52% (LBP-CML) of patients and complete cytogenetic responses were attained in 26 and 46%, respectively. Median progression-free survival was 6.7 (MBP-CML) and 3.0 (LBP-CML) months. Median overall survival was 11.8 (MBP-CML) and 5.3 (LBP-CML) months. Overall, dasatinib had acceptable tolerability. Fluid retention events were more frequent in the MBP-CML than the LBP-CML cohort: pleural effusion occurred in 36 and 13% (all grades) and 15 and 6% (grades 3/4), respectively. Other non-hematologic side effects were primarily grade 1/2; grade 3/4 events were recorded in

View details for DOI 10.1038/leu.2008.221

View details for Web of Science ID 000261862200006

View details for PubMedID 18754032