Biochem/physiol Actions
Firibastat (RB150; QGC001) is an orally active, blood-brain barrier-permeant prodrug composed of two molecules of disulfide-linked aminopeptidase A (APA; glutamyl aminopeptidase) active-site inhibitor EC33 (Ki = 300 nM) that are released via the action of brain reductase in the brain. Firibastat exhibits antihypertensive efficacy in vivo (Blood pressure reduction ED50 = 30 mg/kg via p.o. in spontaneously hypertensive rats).
Orally active, brain-permeant precursor of the aminopeptidase A (APA; glutamyl aminopeptidase) active-site inhibitor EC33 with antihypertensive efficacy in vivo.