Abstract

Acute myeloid leukemia (AML) is a highly heterogeneous disease. Mutation with internal tandem duplication of fms-like tyrosine kinase-3 (FLT3-ITD) is one of the two most common driver mu­tations in AML, the presence of which is associated with a poor outcome. Midostaurin (Mido) is a multi-targeted tyrosine kinase inhibitor that potently inhibits kinase FLT3, other kinases including platelet-derived growth factor receptors α (PDGFR- α ) and b (PDGFR- β ), tyrosine-protein kinase Src, KIT receptor tyrosine kinase, and vascular endothelial growth factor receptor (VEGFR). Mido is the first targeted therapy to demonstrate improved outcome, and as such it represents a game-changer. The RATIFY study demonstrated significant improvements in overall survival, and in event-free survival, when Mido was added to standard chemotherapy in patients with newly diagnosed FLT3-mutated AML. This paper reviews the current clinical evidence regarding Mido and its use in the induction and treatment of relapsed or refractory disease, and maintenance setting.

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