- Uncontrolled hypertension (systolic > 150 mm Hg and/or diastolic > 100 mm Hg) or clinically significant (i.e. active) cardiovascular disease, for example cerebrovascular accidents (≤ 6 months prior to randomisation), myocardial infarction (≤ 6 months prior to randomisation), unstable angina, New York Heart Association Grade II or greater congestive heart failure, or serious cardiac arrhythmia uncontrolled by medication or potentially interfering with protocol treatment.