https://orcid.org/0000-0002-8804-3878
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ABSTRACT
Introduction
The FMS-like tyrosine kinase 3 (FLT3) gene is mutated in one-third of patients with Acute Myeloid Leukemia (AML). Midostaurin, quizartinib, and gilteritinib have been approved in the last years for the treatment of AML, and more Tyrosine Kinase Inhibitors (TKIs) targeting FLT3 are being developed such as crenolanib.
Areas covered
In this systematic review, we will analyze the available clinical data on FLT3 inhibitors in development and describe the potential role that these FLT3-TKIs may play in the future management of FLT3-mutated (FLT3mut) AML.
Expert opinion
Although several aspects may challenge the use of FLT3 inhibitors in AML (resistance mechanisms, on- and off-target toxicities or drug-drug interactions), these drugs are generally well tolerated, particularly if we compare their safety profile with classical chemotherapy agents or even with newer immunotherapies, thus enabling their use in fit and unfit AML patients, alone or combined. As AML is a polyclonal disease and FLT3 mutations are a late leukemogenic event, combinations of these FLT3 inhibitors with other antileukemic agents (like venetoclax or hypomethylating agents) seem a necessary research pathway.
Declaration of interest
P Montesinos reports these potential conflicts of interest, AbbVie: advisory board, speakers bureau, research support; Astellas: research support, consultant, speakers bureau, advisory board; Agios: consultant; Tolero Pharmaceutical: consultant; Glycomimetics: consultant; Forma Therapeutics: consultant; Celgene: research support, consultant, speakers bureau, advisory board; Daiichi Sankyo: research support, consultant, speakers bureau, advisory board; Incyte: speakers bureau, advisory board; Janssen: research support, speakers bureau, advisory board; Karyopharm: research support, advisory board; Novartis: research support, speakers bureau, advisory board; Pfizer: research support, speakers bureau, advisory board; Teva: research support, speakers bureau, advisory board. The authors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed.
Reviewer disclosures
A reviewer on this manuscript has disclosed that they have served as a consultant for AbbVie and Takeda, received honoraria from Agios/Servier, Bristol Myers Squibb, Daiichi Sankyo, Genentech, Gilead, Shattuck Labs, and Takeda, receive research funding from Arog, Astex, Gilead, Merck, Sumitomo Dainippon Pharma, and Takeda. Peer reviewers on this manuscript have no other relevant financial relationships or otherwise to disclose.