Clinical Study to Compare the Efficacy and Safety of Macitentan and Tadalafil Monotherapies With the Corresponding Fixed-dose Combination Therapy in Subjects With Pulmonary Arterial Hypertension (PAH)
Conditions
- Pulmonary Arterial Hypertension (PAH) (WHO Group 1 PH)
Interventions
- DRUG: FDC macitentan/tadalafil
- DRUG: Macitentan 10 mg
- DRUG: Tadalafil 40 mg
- DRUG: Placebo FDC
- DRUG: Placebo macitentan
- DRUG: Placebo tadalafil
Sponsor
Actelion