Subjects with symptomatic bradycardia Participants with symptomatic bradycardia Medically significant (symptomatic) bradycardia Pathologic bradycardia or heart block Symptomatic bradycardia in the absence of a pacemaker. Current diagnosis of symptomatic bradycardia Medically significant (symptomatic) bradycardia. History or presence of sustained bradycardia (less than or equal to 60 beats per minute [BPM]) or history of symptomatic bradycardia, left bundle branch block, cardiac pacemaker or significant atrial tachyarrhythmias, as defined by the need for treatment Baseline Fridericia's corrected QT (QTcF) interval of > 470 ms, participants with baseline resting bradycardia < 45 beats per minute, or baseline resting tachycardia > 100 beats per minute History or presence of clinically significant ventricular arrhythmias, atrial fibrillation, resting bradycardia, or conduction abnormality History or presence of clinically significant ventricular arrhythmias, atrial fibrillation, resting bradycardia, or conduction abnormality Resting bradycardia less than 55 beats/min Clinically significant resting bradycardia Medically significant (symptomatic) bradycardia; Participants with baseline QTc greater than (>) 470 milliseconds or symptomatic bradycardia Clinically significant resting bradycardia Clinically significant resting brachycardia (< 50 beats per minute) Resting bradycardia < 55 beats/min Resting bradycardia < 55 beats/min Baseline QTc > 470 ms or baseline symptomatic bradycardia < 45 beats per minute Clinically significant resting bradycardia Clinically significant resting bradycardia Bradycardia of less than 50 beats per minute, unless the subject has a pacemaker; Clinically significant resting bradycardia