- Serious cardiac condition such as myocardial infarction within the past 6 months, unstable angina, or Class III or IV congestive heart failure as defined by the New York Heart Association (NYHA); have ECG abnormalities including baseline 12-lead ECG with Fridericia-corrected QT interval (QTcF) > 470 msec (female) or > 450 msec (male), a history of congenital long QT syndrome, or any ECG abnormality that, in the opinion of the Investigator, would preclude safe participation in the study