By Scott Roberts
WEDNESDAY, Oct. 9 (HealthDay News) -- Adempas (riociguat) has been approved by the U.S. Food and Drug Administration to treat two types of pulmonary hypertension, characterized by high blood pressure in the arteries of the lungs.
The drug was approved for people with chronic thromboembolic pulmonary hypertension (CTEPH) after surgery, or for people who cannot have surgery, to help improve the ability to exercise. The drug also was approved for people with pulmonary arterial hypertension (PAH) of various causes.
Adempas was evaluated in a clinical study involving 261 people with CTEPH. People who were treated with the drug were able to walk about 150 feet further in six minutes after 16 weeks of treatment than people who took a placebo, the FDA said.
In another trial of 443 people with PAH, people treated with the drug were able to walk about 118 feet further in six minutes than those who had been treated with a placebo.
Adempas' label includes a boxed warning that pregnant women shouldn't use the drug, which can harm a growing fetus, the agency said.
The drug is marketed by Wayne, N.J.-based Bayer HealthCare Pharmaceuticals.