- QT related exclusion criteria: Fridericia Correction Formula (QTcF) at screening > 450 msec; History of syncope or family history of idiopathic sudden death; Sustained or clinically significant cardiac arrhythmias; Risk factors for Torsades de Pointes such as hypokalemia, hypomagnesemia, cardiac failure, clinically significant/symptomatic bradycardia, or high-grade atrioventricular (AV) block; Concomitant medication(s) known to prolong the QT interval (patient must be off the drug for 2 weeks to be eligible)