DCC-2618 is an orally active, potent type II switch pocket (SP) inhibitor against c-KIT (IC50 = 4 nM/WT, 8 nM/V654A, 18 nM/T670I, 5 nM/D816H, 14 nM/D816V) and PDGFR. DCC-2618 locks c-KIT & PDGFR in an inactive conformation and is effective against multiple clinical forms of mutations resistant to type I ATP (catalytic)-site inhibitors Imatinib and Sunitinib. DCC-2618 inhibits cellular c-KIT activation (IC50 = 36 nM/WT, 2 nM/ex 11 del, 7 nM/ex 11 del & V654A, 53 nM/V560D & D820A) and is efficacious against KIT mutants-mediated cancer growth in cultres (IC50 = 2 nM; GIST with KIT D816Y) and in mice in vivo (50 mg/kg b.i.d. p.o.; GIST with KIT delW557K558/Y823D, AML with KIT N822K).
Orally active, potent type II switch pocket (SP) c-KIT & PDGFR inhibitor against multiple clinical forms of mutations resistant to Imatinib and Sunitinib.
Systemic mastocytosis is a complex disease defined by abnormal growth and accumulation of neoplastic mast cells in various organs. Most patients exhibit a D816V-mutated variant of KIT, which confers resistance against imatinib. Clinical problems in systemic mastocytosis arise from mediator-related
DCC-2618 is a potent inhibitor of wild-type and mutant KIT, including refractory Exon 17 D816 KIT mutations, and exhibits efficacy in refractory GIST and AML xenograft models, [abstract]
Smith BD, Hood MM, Wise SC, Kaufman MD, Lu WP, Rutkoski T, Flynn DL, Heinrich MC.
Cancer Research, 75 (15 Suppl), Abstract nr 2690-Abstract nr 2690 (2015)
DCC-2618, a pan KIT and PDGFR switch control inhibitor, achieves proof-of-concept in a first-in-human study
Janku F, George S, Razak A, Gordon M, Brooks D, Flynn DG, Kaufman M, Pitman J, Smith B, et al
European Journal of Cancer, 69, S4 (suppl-S4 (suppl (2016)
Tyrosine kinase inhibitors may initially control gastrointestinal stromal tumors, but most patients eventually experience disease progression due to activation loop mutations, which are resistant to approved drugs. However, phase I trials suggest that the cancer is sensitive to two new
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