“The Food and Drug Administration on Tuesday approved a drug from Merck designed to treat a progressive and life-threatening lung condition in a win for both the drugmaker and for patients suffering from the rare disease.

The agency greenlighted the therapy, which will be marketed as Winrevair, for adults with pulmonary arterial hypertension. The decision is a big step for the roughly 40,000 people in the U.S. living with that disease because Winrevair is the first drug to target the root cause of the condition. Other available medicines only help manage symptoms.”

From CNBC.