Sponsoring company: United Therapeutics Corporation
Disease state: pulmonary fibrosis, interstitial lung disease
This Phase 3, multinational, randomized, double-blind, placebo-controlled study evaluates the safety and efficacy of inhaled treprostinil in subjects with PPF over 52 weeks. Subjects will be randomly allocated 1:1 to receive inhaled treprostinil or placebo, starting at a dose of 3 breaths administered 4 times daily (QID) and titrating to a target dosing regimen of 12 breaths QID. Six Treatment visits to the clinic are required at Weeks 4, 8, 16, 28, 40, and 52.
Efficacy assessments include spirometry, time to clinical worsening, time to first acute exacerbation of ILD, overall survival, King's Brief Interstitial Lung Disease (K-BILD) questionnaire, plasma NT-proBNP, supplemental oxygen use, and lung diffusion capacity. Safety assessments include adverse events /serious adverse events, vital signs, clinical laboratory parameters, and electrocardiogram parameters.
Subjects completing the Week 52 Visit may be offered entry to an open-label extension study, following the final study visit.
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