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Quizartinib in the treatment of FLT3-internal-tandem duplication-positive acute myeloid leukemia.

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Fms-like tyrosine kinase 3 (FLT3) mutations, characterized by an internal-tandem duplication or missense mutations in the tyrosine kinase domain, are observed in a third of patients with newly diagnosed acute… Click to show full abstract

Fms-like tyrosine kinase 3 (FLT3) mutations, characterized by an internal-tandem duplication or missense mutations in the tyrosine kinase domain, are observed in a third of patients with newly diagnosed acute myeloid leukemia. FLT3-ITD mutations are associated with high relapse rates and short overall survival with conventional chemotherapy. Several tyrosine kinase inhibitors targeting FLT3 have been developed in an effort to improve survival and therapeutic options. This review focuses on quizartinib, a second-generation FLT3 inhibitor that has demonstrated efficacy and safety as a single agent and in combination with chemotherapy. We discuss its clinical development as well as its place in the treatment of FLT3-mutated acute myeloid leukemia among the other FLT3 inhibtors currently available and its mechanisms of resistance.

Keywords: internal tandem; myeloid leukemia; flt3; tandem duplication; acute myeloid

Journal Title: Future oncology
Year Published: 2019

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