- untreated patients (either newly diagnosed or those patients with a history of hypertension but have not been taking any antihypertensive drugs for at least 4 weeks prior to first visit) must have an offcie msSBP ≥ 150 mmHg and < 180 mmHg at screening and 1 week after screening and must have an office msSBP ≥ 145 mmHg and < 180 mmHg after 4 weeks run-in epoch