Avapritinib, or BLU-285,[A189327] is a selective tyrosine kinase inhibitor of KIT and platelet derived growth factor receptor alpha indicated for the treatment of unresectable, metastatic gastrointestinal stromal tumors and advanced systemic mastocytosis.[A189339,L40363] It is one of the first medications available for the treatment of multidrug resistant cancers.[A189327] Avapritinib shares a similar mechanism with [ripretinib]. Avapritinib was granted FDA approval on 9 January 2020 [L40363] and EMA approval on 24 September 2020.[L41464]
Synonyms
Avapritinib
Brand Names
Ayvakyt
Ayvakit
Indication
Avapritinib is indicated for the treatment of adults with unresectable or metastatic GIST harboring a platelet-derived growth factor receptor alpha (PDGFRA) exon 18 mutation, including PDGFRA D842V mutations.[L40363,L45520] It is also used to treat adult patients with advanced systemic mastocytosis (AdvSM). AdvSM includes patients with aggressive systemic mastocytosis (ASM), systemic mastocytosis with an associated hematological neoplasm (SM-AHN), and mast cell leukemia. However, it is not recommended for the treatment of patients with AdvSM with platelet counts of less than 50 X 10<sup>9</sup> L.[L40363,L45520]
Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison
T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS.
Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID:21059682
