Expert opinion on drug metabolism & toxicology
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Expert Opin Drug Metab Toxicol · Dec 2016
ReviewPharmacokinetic drug evaluation of selexipag for the treatment of pulmonary arterial hypertension.
Management of pulmonary arterial hypertension (PAH) remains challenging even in the contemporary era. Intravenous prostacyclin therapy, while associated with decreased mortality, has practical limitations and requires significant lifestyle modifications. The recently approved long-acting oral IP prostacyclin receptor agonist for treatment of PAH, selexipag, is a non-prostanoid agent that vasodilates, impacts remodeling (anti-proliferative), reduces endothelial cell dysfunction, inhibits platelet aggregation (anti-thrombotic), and increases right heart inotropy. ⋯ We further discuss the methodology and results of phase II and III trials, which led to approval of selexipag for PAH management. Expert opinion: As compared to previously developed oral prostacyclins, selexipag has limited adverse effects despite similar or better efficacy. Its final place in the treatment paradigm is not yet clear but it does represent a significant advance in the area of oral PAH therapy.