- History of arrhythmia (multifocal premature ventricular contractions [PVCs], bigeminy, trigeminy, ventricular tachycardia, or uncontrolled atrial fibrillation) which is symptomatic or requires treatment (Common Terminology Criteria for Adverse Events [CTCAE] grade 3) or asymptomatic sustained ventricular tachycardia; atrial fibrillation controlled on medication is not exclusion nor are infrequent or unifocal ectopic beats