- Mean 24 hour ambulatory systolic blood pressure ≥145 mmHg and ≤200 mmHg and stable for at least 8 weeks on a maximally tolerated guideline directed, (JNC8) or their equivalent when those listed are not available dosing regimen consisting of up to 5 antihypertensive medications, with a minimum required dosing regimen of an "A+C+D" antihypertensive medication regimen, where "A" is an angiotensin-converting enzyme Inhibitor or an angiotensin receptor blocker, "C" is a calcium channel blocker, and "D" is a diuretic.