In Vitro: BMS-986224 fully inhibits forskolin-mediated cAMP production, with an EC50 for human APJ of 0.02 nM. BMS-986224 (0-100 nM) fully stimulates β-arrestin recruitment, ERK phosphorylation, and APJ internalization in Chinese hamster ovary-K1 or HEK293 ZF cells. BMS-986224 is a potent and selective APJ receptor agonist that exhibits a similar signaling profile to (Pyr1) apelin-13.
In Vivo: BMS-986224 (0.192 mg/kg or 3 mg/kg; SC infusion; daily;) in the RHR model increased stroke volume and cardiac output to levels seen in healthy animals but without preventing cardiac hypertrophy and fibrosis, effects differentiated from enalapril.