The patient has uncontrolled or poorly controlled hypertension despite standard medical management as defined in this protocol Uncontrolled chronic hypertension defined as systolic > 150 or diastolic > 90 despite optimal therapy. Uncontrolled hypertension (as defined as ? 160/90 despite optimal medical management) Uncontrolled arterial hypertension >/= 150/ >/= 90 millimeter of mercury (mmHg) despite standard medical management; Patients with uncontrolled arterial hypertension despite optimal medical management or uncontrolled type I or II diabetes mellitus; patients with well-controlled arterial hypertension or diabetes mellitus are eligible Uncontrolled hypertension despite optimal medical management Uncontrolled hypertension (despite medical therapy); blood pressure should be < 140/90 in accordance with American Heart Association definition of hypertension Poorly controlled hypertension, defined as sustained, uncontrolled, non-episodic baseline hypertension consistently above 159/99 mmHg despite optimal medical management Sustained uncontrolled hypertension (> 150/90 average over 1 week) despite optimal medical management FOR ALL PHASES (Ib AND II): Uncontrolled arterial hypertension despite optimal medical management The patient has uncontrolled or poorly-controlled hypertension (>= 150 / >= 90 mm Hg) despite standard medical management Uncontrolled hypertension despite optimal medical management (per investigator“s assessment) Poorly controlled hypertension despite multiple antihypertensive medication or Uncontrolled arterial hypertension despite appropriate medical therapy Patient with poorly controlled hypertension despite multiple antihypertensives Uncontrolled arterial hypertension despite optimal medical management (per institutional guidelines). Uncontrolled arterial hypertension despite appropriate medical therapy Uncontrolled hypertension (HTN) despite medical management (blood pressure [BP] >= 160/100) The participant has uncontrolled hypertension, despite antihypertensive intervention. Uncontrolled hypertension (> 150/100 mmHg despite optimal medical therapy) Have uncontrolled hypertension prior to initiating study treatment, despite antihypertensive intervention. Uncontrolled hypertension (> 160/100 mm Hg despite optimal medical therapy) Uncontrolled arterial hypertension despite optimal medical management (per investigator's assessment). Uncontrolled arterial hypertension despite medical treatment Uncontrolled arterial hypertension despite medical treatment The participant has uncontrolled arterial hypertension ?150 / ?90 millimeters of mercury (mm Hg) despite standard medical management Patients with poorly controlled hypertension despite multiple antihypertensive medications Uncontrolled arterial hypertension despite optimal medical management (per investigator's assessment) (modified by amendment 1) Uncontrolled arterial hypertension despite medical treatment Uncontrolled hypertension despite optimal medical management Uncontrolled arterial hypertension despite appropriate medical therapy Patients with uncontrolled intracranial hypertension syndrome (defined as: persistence of headache, transient visual obscurations, and/or diplopia despite optimal clinical management) or uncontrolled seizure activity (i.e. recorded despite optimal medical management) Uncontrolled Hepatitis B despite appropriate therapy. Uncontrolled arterial hypertension despite medical treatment Uncontrolled hypertension defined as optimally treated baseline blood pressure that exceeds 140/90 mm Hg despite optimal medical management Patients with uncontrolled hypertension (systolic > 140, diastolic > 90) despite antihypertensive therapy Uncontrolled arterial hypertension despite medical treatment Uncontrolled chronic hypertension defined as systolic > 150 or diastolic > 90 despite optimal therapy