A 12 Week Safety And Efficacy Study Of Sitaxentan Sodium In Japanese Pulmonary Arterial Hypertension Patients

Exclusion Criteria

• •Previous exposure to an endothelin receptor antagonist
• •Has uncontrolled systemic hypertension as evidenced by sitting systolic blood pressure \>160 mm Hg or sitting diastolic blood pressure \>100 mm Hg at Screening.
• •Has hypotension defined as systolic arterial pressure \<90 mm Hg after sitting for 5 minutes at Screening.