- must have a normal 12-lead electrocardiogram (ECG) at screening including: normal sinus rhythm (heart rate between 45 and 100 beats per minute [bpm], extremes included); QT interval corrected for heart rate (QTc) according to Fridericia (QTcF) less than equal to (<=)470 milliseconds (ms); QRS interval less than (<)120 ms; PR interval <=220 ms