The purpose of this study is to evaluate the long-term safety and tolerability of Admilparant in participants who completed participation in parent studies IM027-068 (for idiopathic pulmonary fibrosis (IPF)) and IM027-1015 (for progressive pulmonary fibrosis (PPF)).
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Clinically significant AE that resulted in discontinuation or interruption of IMP (Investigational Medicinal Product) in IM027068 or IM0271015 without reinitiation of IMP.
Exhibit symptoms of heart failure at rest.
History of lung reduction surgery or lung transplant. Note: Being on the transplantation list is allowed.
Participants with known PAH (Pulmonary Arterial Hypertension) who has been on single drug therapy that now requires multi-drug therapy.