RT Journal Article
SR Electronic
T1 Selexipag: an oral, selective prostacyclin receptor agonist for the treatment of pulmonary arterial hypertension
JF European Respiratory Journal
JO Eur Respir J
FD European Respiratory Society
SP 874
OP 880
DO 10.1183/09031936.00137511
VO 40
IS 4
A1 Simonneau, Gérald
A1 Torbicki, Adam
A1 Hoeper, Marius M.
A1 Delcroix, Marion
A1 Karlócai, Kristóf
A1 Galiè, Nazzareno
A1 Degano, Bruno
A1 Bonderman, Diana
A1 Kurzyna, Marcin
A1 Efficace, Michela
A1 Giorgino, Ruben
A1 Lang, Irene M.
YR 2012
UL http://erj.ersjournals.com/content/40/4/874.abstract
AB In this phase 2 proof-of-concept study we examined the safety and efficacy of selexipag, an orally available, selective prostacyclin receptor (IP receptor) agonist, as a treatment for pulmonary arterial hypertension (PAH). 43 adult patients with symptomatic PAH (receiving stable endothelin receptor antagonist and/or a phosphodiesterase type-5 inhibitor therapy) were randomised three to one to receive either selexipag or placebo. Dosage was up-titrated in 200-μg increments from 200 μg twice daily on day 1 to the maximum tolerated dose by day 35 (maximum allowed dose of 800 μg twice daily). Change in pulmonary vascular resistance at week 17 expressed as a percentage of the baseline value was the primary efficacy end-point, and was analysed in the per protocol set first and then in the all-treated set to assess robustness of results. A statistically significant 30.3% reduction in geometric mean pulmonary vascular resistance was observed after 17 weeks' treatment with selexipag compared with placebo (95% confidence limits -44.7– -12.2; p=0.0045, Wilcoxon rank sum test). This was supported by a similar result from the all-treated set. Selexipag was well tolerated with a safety profile in line with the expected pharmacological effect. Our results encourage the further investigation of selexipag for the treatment of PAH.