SGCB and pulmonary arterial hypertension: Current PAH standard-of-care (SOC) therapies include the phosphodiesterase type-5 inhibitors (PDE5is), endothelin receptor antagonists (ERAs), prostacyclin analogs (PCAs) or prostacyclin receptor agonists (PRAs) and soluble guanylate cyclase (sGC) stimulators, with various other pipeline compounds in clinical development.