Study to Evaluate the Efficacy and Safety of Combination Aliskiren/Amlodipine in Patients Not Adequately Responding to Aliskiren Alone

Change From Baseline to End of Study in the Mean Sitting Systolic Blood Pressure (msSBP)

After the patient had been sitting for 5 minutes, systolic and diastolic blood pressures were measured 3 times using the automatic Blood Pressure monitor and appropriate size cuff. The repeat sitting measurements were made at 1-2 minute intervals and the mean of these 3 sitting blood pressure measurements was used as the average sitting blood pressure for that visit. The difference of the msSBP at baseline from the msSBP at 8 weeks was calculated using an ANCOVA model with baseline as a covariate and treatment and region as two factors.

Time frame: Baseline, End of Study (Week 8)

Number of Participants With Serious Adverse Events and Adverse Events

The number of participants with any Serious Adverse Event and the number of participants with Adverse Events in any system organ class. Additional information about Adverse Events can be found in the Adverse Event Section.

Time frame: 8 weeks

Percentage of Participants Achieving Blood Pressure Control

After the patient had been sitting for 5 minutes, with the back supported and both feet placed on the floor, systolic and diastolic blood pressures were measured 3 times using the automatic Blood Pressure monitor and appropriate size cuff. The repeat sitting measurements were made at 1-2 minute intervals and the mean of these 3 sitting blood pressure measurements was used as the average sitting blood pressure for that visit. Blood Pressure control was defined as having a mean sitting Diastolic Blood Pressure \<90 and a mean sitting Systolic Blood Pressure \<140.