United Therapeutics

This study is a patient registry that follows 300 adults with pulmonary arterial hypertension (PAH) who are starting or recently started Orenitram. Researchers will track how well patients tolerate the drug and how it works in routine care over 78 weeks. The goal is to understand…

This study tests whether quickly starting and increasing a medication called treprostinil can improve right heart function and reverse damage in people with pulmonary arterial hypertension (PAH). The study enrolled 52 adults with confirmed PAH. Researchers will measure changes in…

This study looks at the long-term safety of ralinepag in people with pulmonary arterial hypertension (PAH), a serious lung condition that makes it hard to breathe. About 1,000 adults who have already been in a ralinepag study will continue taking the drug. The goal is to see if i…

This study looks at the long-term safety of an inhaled medication called treprostinil for people with lung scarring (idiopathic pulmonary fibrosis or progressive pulmonary fibrosis). About 1,850 adults who completed a prior related study will take the drug and be monitored for si…