Clinical Study to Evaluate the Safety and Tolerability of Macitentan in Subjects With Combined Pre- and Post-capillary Pulmonary Hypertension (CpcPH) Due to Left Ventricular Dysfunction

A Prospective, Multicenter, Double-blind, Randomized, Placebo-controlled, Parallel-group, 12-week Study to Evaluate the Safety and Tolerability of Macitentan in Subjects With Combined Pre- and Post-capillary Pulmonary Hypertension (CpcPH) Due to Left Ventricular Dysfunction

Study to evaluate if macitentan is safe and tolerable enough to be used for treatment of subjects with combined pre- and post-capillary pulmonary hypertension (CpcPH) due to left ventricular dysfunction.

Inclusion Criteria:

1. Males and Females >=18 years of age
2. Subjects with combined pre-and post-capillary Pulmonary Hypertension (CpcPH) due to left ventricular dysfunction (subset of WHO groups 2.1 and 2.2)
3. Optimized diuretic therapy

Exclusion Criteria:

1. Types of Pulmonary Hypertension other than WHO groups 2.1 and 2.2 (Nice classification)
2. Administration of PAH-specific therapy (i.e., Endothelin receptor antagonists (ERAs), Prostanoids, Phosphodiesterase 5 (PDE-5) inhibitors, guanylate cyclase stimulators)