5. Subject has a history of significant cerebrovascular disease, coronary artery disease, or cardiac arrhythmias. Subject has a history (or family history) of congenital prolonged QTc (corrected QT interval) syndrome or has an abnormal clinically significant electrocardiogram (ECG) at screening, including QTcB (QT interval corrected for heart rate using Bazett's formula) value >450 msec (males) or >470 msec (females); or shows evidence of clinically significant rhythm abnormality.