Transgenic MYH7 R403Q HCM mouse and A31P MYBPC3 cat model of hereditary obstructive HCM
“Prospect of clinical benefit was shown using heterozygous transgenic MYH7 R403Q mice with HCM, and a cat model of hereditary oHCM (A31P MYBPC3 mutation), using aficamten doses comparable to those used in toxicology studies.”
Cardiac myosin motor highly conserved between species, making animal species pharmacologically relevant
“Both species are considered pharmacologically relevant given the high conservation of the cardiac myosin motor between species and based on in vitro and single-dose in vivo pharmacology studies.”
FDA: the cat model reliably reflects human oHCM including LVOT obstruction; the transgenic mouse shows LV thickening without obstruction
“Notably, the transgenic mouse develops LV thickening without LVOT obstruction, while the cat model reliably reflects human oHCM symptoms including LVOT obstruction.”