This study is to see whether a new study drug, called CXA-10, can help lower the pressure in the blood vessels from the heart to the lungs and improve heart health.
CXA-10 is a natural substance that is normally found in the body in low levels and is believed to reduce inflammation in the body. For this study, participants receive a right heart catheterization and a cardiac MRI during the screening visit and again approximately six months later. They will perform a 6-Minute Walk Test at each study visit. Visits are conducted once a month for five months, after which participants have the opportunity to enroll in a long-term extension study where everyone will receive CXA-10.