Study to Compare Triple Therapy (Oral Treprostinil, Ambrisentan, and Tadalafil) With Dual Therapy (Ambrisentan, Tadalafil, and Placebo) in Subjects With Pulmonary Arterial Hypertension
Stopped For business reasons.
Conditions
- Pulmonary Arterial Hypertension
Interventions
- DRUG: Oral Treprostinil
- DRUG: Placebo
Sponsor
United Therapeutics