- Patients with abnormal QTc prolongation (defined as a QTc interval equal to or greater than 500 msec) or patients who have a history of serious ventricular arrhythmia (VT or VF>/= 3 beats in a row or other significant (as judged by treating physician) ECG abnormalities.Patients with consistently poorly controlled (during the month prior to study screening) hypertension (systolic blood pressure of 140 mmHg or higher or diastolic blood pressure of 90 mmHg or higher) despite appropriate medical management of the hypertension.