Twenty-four hour mean ambulatory blood pressure measurements (ABPM) will be performed at baseline and at end of study (week 8). The first 24-hour ABPM will be performed beginning at 24 hours prior to baseline visit and the second will be performed 24 hours prior to week 8 visit.

A subset of randomized participants, who had ABPM measurements at both baseline and week 8, were included in the analysis

Twenty-four hour mean ambulatory blood pressure measurements (ABPM) will be performed at baseline and at end of study (week 8). The 24-hour ABPM measurements are performed beginning 24 hours prior to baseline and week 8 visits.

A subset of randomized participants, who had ABPM measurements at both baseline and week 8, were included in the analysis.

Sitting blood pressure (BP) measurement will be taken at every visit from screening through end of study. For each participant at each visit, four separate sitting BP measurements will be obtained (with a full two minute interval between measurements) and averaged to obtain the mean

Full Analysis Set (FAS) - All patients who were randomized. Following the intent to treat principle, patients were analyzed according to the treatment they were assigned to at the randomization. However, patients who were not qualified for randomization and were inadvertently randomized into the study were excluded from the FAS.

Sitting blood pressure (BP) measurement will be taken at every visit from screening through end of study. For each participant at each visit, four separate sitting BP measurements will be obtained (with a full two minute interval between measurements) and averaged to obtain the mean

Full Analysis Set (FAS) - All patients who were randomized. Following the intent to treat principle, patients were analyzed according to the treatment they were assigned to at the randomization. However, patients who were not qualified for randomization and were inadvertently randomized into the study were excluded from the FAS.

Mean sitting pulse pressure (msPP) will be calculated at screening through end of study at every visit. Mean sitting pulse pressure is calculated as msSBP-msDBP.

Full Analysis Set (FAS) - All patients who were randomized. Following the intent to treat principle, patients were analyzed according to the treatment they were assigned to at the randomization. However, patients who were not qualified for randomization and were inadvertently randomized into the study were excluded from the FAS.

Successful overall blood pressure control is defined as both msSBP/msDBP <140/90 mmHg

Full Analysis Set (FAS) - All patients who were randomized. Following the intent to treat principle, patients were analyzed according to the treatment they were assigned to at the randomization. However, patients who were not qualified for randomization and were inadvertently randomized into the study were excluded from the FAS

Successful mean sitting systolic blood pressure control is defined as msSBP <140 mmHg

Full Analysis Set (FAS) - All patients who were randomized. Following the intent to treat principle, patients were analyzed according to the treatment they were assigned to at the randomization. However, patients who were not qualified for randomization and were inadvertently randomized into the study were excluded from the FAS.

Successful mean sitting diastolic blood pressure control is defined as msDBP <90 mmHg

Full Analysis Set (FAS) - All patients who were randomized. Following the intent to treat principle, patients were analyzed according to the treatment they were assigned to at the randomization. However, patients who were not qualified for randomization and were inadvertently randomized into the study were excluded from the FAS.

Successful mean sitting systolic blood pressure response is defined as msSBP <140 mmHg or a reduction ≥ 20 mmHg from baseline.

Full Analysis Set (FAS) - All patients who were randomized. Following the intent to treat principle, patients were analyzed according to the treatment they were assigned to at the randomization. However, patients who were not qualified for randomization and were inadvertently randomized into the study were excluded from the FAS

Successful mean sitting diastolic blood pressure response is defined as msDBP <90 mmHg or a reduction ≥10 mmHg from baseline.

Full Analysis Set (FAS) - All patients who were randomized. Following the intent to treat principle, patients were analyzed according to the treatment they were assigned to at the randomization. However, patients who were not qualified for randomization and were inadvertently randomized into the study were excluded from the FAS

Number of patients with total adverse events, serious adverse events and death were reported.

Safety Set (SAF) - All patients who received at least one dose of study medication in the double-blind epoch. Patients were analyzed according to the treatment they received. One patient was not included in the SAF due to mis-randomization.