A Phase 3, Randomized, Double-blind, Placebo-controlled, Multicenter, Parallel Group Study to Evaluate the Efficacy and Safety of Treprostinil Palmitil Inhalation Powder in Participants With Pulmonary Hypertension Associated With Interstitial Lung Disease

Inclusion Criteria * Diagnosis of PH World Health Organisation (WHO) Group 3 associated with ILD \[including but not limited to idiopathic interstitial pneumonia (IIP), chronic hypersensitivity pneumonitis (HSP), connective tissue disease-associated interstitial lung disease (CTD-ILD), combined pulmonary fibrosis and emphysema (CPFE). * Confirmation of fibrotic interstitial lung disease by centrally overread computed tomography (CT) scan performed at Screening or within prior 12 months. * PH confirmed by right heart catheterization (RHC) at Screening or within 12 months prior to Screening, wi…