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Clinical utility of treprostinil in the treatment of pulmonary arterial hypertension: an evidence-based review

Authors Buckley M, Berry A, Kazem N, Patel S, Librodo P

Received 29 April 2014

Accepted for publication 17 May 2014

Published 20 June 2014 Volume 2014:9 Pages 71—80

DOI https://doi.org/10.2147/CE.S50607

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2


Mitchell S Buckley,1 Andrew J Berry,1 Nadine H Kazem,2 Shardool A Patel,3 Paul A Librodo4

1Department of Pharmacy, Banner Good Samaritan Medical Center, Phoenix, AZ, USA; 2Department of Pharmacy, St Joseph’s Hospital and Medical Center, Phoenix, AZ, USA; 3Department of Pharmacy, Banner Estrella Medical Center, Phoenix, AZ, USA; 4Department of Pharmacy, San Francisco VA Medical Center, San Francisco, CA, USA

Abstract: Pulmonary arterial hypertension (PAH) remains a progressive disease without a cure, despite the development of several treatment options over the past several decades. Its management strategy consists of the endothelin receptor antagonists (ambrisentan, bosentan, macitentan), phosphodiesterase-5 inhibitors (sildenafil, tadalafil, vardenafil), and prostacyclin analogs (epoprostenol, treprostinil, iloprost). Treprostinil, a stable prostacyclin analog, displays vasodilatory effects in the pulmonary vasculature, as well as antiplatelet aggregation properties. Clinical practice guidelines recommend oral endothelin receptor antagonist or phosphodiesterase inhibitor therapy in mild to moderate PAH. Epoprostenol is specifically suggested as first-line therapy in moderate to severe PAH patients (ie, World Health Organization/New York Heart Association functional class III–IV). However, treprostinil may be an alternative option in these severe PAH patients. The longer half-life and stability at room temperature with treprostinil may be associated with lower risk of pulmonary hemodynamic worsening as a result of abrupt infusion discontinuation and less frequent drug preparation. These characteristics make treprostinil an attractive alternative to continuous infusion of epoprostenol, due to convenience and patient safety. The purpose of this review is to evaluate the safety and efficacy of continuous infusion of treprostinil as well as the inhaled and oral routes of administration in PAH.

Keywords: treprostinil, prostacyclin, pulmonary arterial hypertension

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