- Patients may not have any evidence of pre-existing inadequately controlled hypertension (defined as a systolic blood pressure [BP] of > 140 mmHg or a diastolic BP of > 90 mmHg), and must have a normal blood pressure (=< 140/90 mmHg) taken in the clinic setting by a medical professional within 2 weeks prior to starting study; patients with hypertension may be managed with up to a maximum of three antihypertensive medications; patients who are on three antihypertensive medications must be actively followed by a cardiologist or blood pressure specialist for management of blood pressure while on protocol