Conditions: Moderate to Severe Hypertension
Keywords: Hypertension systolic blood pressure cardiovascular disease aliskiren amlodipine
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 485
Healthy volunteers: no

Brief summary:
This study will compare the blood pressure (BP) lowering effect of the combination of aliskiren/amlodipine 300/10 mg versus amlodipine 10 mg monotherapy in patients with moderate to severe hypertension by testing the hypothesis that the combination of aliskiren/amlodipine produces a superior reduction from baseline in mean sitting systolic blood pressure (msSBP) after 8 weeks of treatment.

Detailed description:

Arms:
arm 1: Aliskiren/amlodipine treatment regimen: At randomization, patients were treated with aliskiren/amlodipine 150/5 mg for one week. For the remaining 7 weeks of the study, patients were force-titrated to receive aliskiren/amlodipine 300/10 mg. arm 2: Amlodipine treatment regimen: At randomization, patients were treated with amlodipine 5 mg for one week. For the remaining 7 weeks of the study, patients were force-titrated to receive amlodipine 10 mg.

Interventions: intervention 1: Aliskiren/amlodipine 300/10 mg tablet intervention 2: Amlodipine 10 mg capsule
Intervention descriptions: intervention 1: Each dose was taken by mouth with water at approximately 8:00 in the morning with or without food, except on the morning of the next office/clinic visit, when the medication was taken at the site after the visit procedures were completed. In order to adequately blind the study, patients were required to take a total of two tablets and one capsule of study medication per day throughout the study. intervention 2: Each dose was taken by mouth with water at approximately 8:00 in the morning with or without food, except on the morning of the next office/clinic visit, when the medication was taken at the site after the visit procedures were completed. In order to adequately blind the study, patients were required to take a total of two tablets and one capsule of study medication per day throughout the study.

Protocol document: