| Recruiting | 3 | 1000 | Europe, Canada, US, RoW | Ralinepag, APD811, Placebo | United Therapeutics | PAH, Pulmonary Hypertension, Pulmonary Arterial Hypertension, Hypertension, Connective Tissue Diseases, Familial Primary Pulmonary Hypertension, Vascular Diseases, Cardiovascular Diseases, Hypertension, Pulmonary, Lung Diseases, Respiratory Tract Disease | 12/25 | 12/25 | | |
| Completed | 2 | 108 | Europe, Canada, US, RoW | rodatristat ethyl 300 mg tablet BID, rodatristat ethyl 600 mg BID, Placebo | Altavant Sciences GmbH | Pulmonary Arterial Hypertension | 06/23 | 08/23 | | |