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An observational study of inhaled-treprostinil respiratory-related safety in patients with pulmonary arterial hypertension.

Abstract：

:Inhaled treprostinil (Tyvaso) has been shown to be a safe and effective addition to pulmonary arterial hypertension (PAH) oral therapies; however, the respiratory-related safety profile of inhaled treprostinil required further elucidation in the setting of routine clinical care. The objectives of this study were to characterize respiratory-related adverse events (AEs) associated with current or recent treatment with inhaled treprostinil and to compare the incidence of respiratory-related AEs in PAH patients treated with inhaled treprostinil with that in patients treated with other Food and Drug Administration (FDA)-approved PAH therapies. This was a long-term, prospective, observational study. All respiratory-related AEs were recorded during the study. The number of PAH patients enrolled was 1,333, 666 treated with inhaled treprostinil and 667 controls (treated with an FDA-approved PAH therapy other than inhaled treprostinil), for a total of 958 and 1,094 patient-years of exposure, respectively. In the inhaled-treprostinil group, 1,281 respiratory-related AEs were reported in 403 patients (61%), and in the control group, 1,295 respiratory-related AEs were reported in 388 patients (58%). Cough, throat irritation, nasal discomfort, and hemoptysis were the most common respiratory-related AEs (occurring in ≥2% of patients in either treatment group) that demonstrated a higher number of events per patient-year of exposure in the inhaled-treprostinil group than in the control group (risk ratio [95% confidence interval]: 1.487 [1.172-1.887], 3.777 [2.050-6.956], 2.039 [1.072-3.879], and 1.957 [1.024-3.741], respectively). Overall, inhaled treprostinil was well tolerated by PAH patients in routine clinical care, with respiratory-related AEs consistent with the known safety profile (trial registration: clinicaltrials.gov identifier: NCT01266265).

journal_name

Pulm Circ

journal_title

Pulmonary circulation

authors

Zamanian RT,Levine DJ,Bourge RC,De Souza SA,Rosenzweig EB,Alnuaimat H,Burger C,Mathai SC,Leedom N,DeAngelis K,Lim A,De Marco T

doi

10.1086/688059

subject

Has Abstract

pub_date

2016-09-01 00:00:00

pages

329-37

issue

eissn

2045-8932

issn

2045-8940

pii

PC2013358

journal_volume

pub_type

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An observational study of inhaled-treprostinil respiratory-related safety in patients with pulmonary arterial hypertension.