COMPARATIVE STUDY
JOURNAL ARTICLE
MULTICENTER STUDY
RANDOMIZED CONTROLLED TRIAL

Tolerability and blood pressure-lowering efficacy of the combination of amlodipine plus valsartan compared with lisinopril plus hydrochlorothiazide in adult patients with stage 2 hypertension

Don Poldermans, Robert Glazes, Stefanos Kargiannis, Margaret Wernsing, Jeanne Kaczor, Yann Tong Chiang, Joseph Yen, Raul Gamboa, Irina Fomina
Clinical Therapeutics 2007, 29 (2): 279-89
17472820

BACKGROUND: Most patients with hypertension in the United States and Europe fail to achieve the recommended target blood pressure (BP) of <140/90 mm Hg. Combination therapy is required in approximately two thirds of all patients whose BP is >20/10 mm Hg above the goal. Combination therapy with agents having complementary mechanisms of action, such as a calcium channel blocker and an angiotensin II-receptor blacker, would be a potentially useful therapeutic option.

OBJECTIVES: This study evaluated the overall safety profile of combination therapy with amlodipine plus valsartan compared with a combination of lisinopril plus hydrochlorothiazide (HCTZ) in patients with stage 2 hypertension (mean sitting diastolic BP [MSDBP] >or=110 and <120 mm Hg) over the short term (6 weeks). A secondary objective was to evaluate the efficacy of the 2 regimens in achieving BP reduction.

METHODS: This was an international, multicenter, randomized, double-blind, active-controlled, parallel-group study. Patients were randomized to receive once-daily treatment with amlodipine 5 to 10 mg + valsartan 160 mg or lisinopril 10 to 20 mg + HCTZ 12.5 rig for 6 weeks. Safety assessments included monitoring of all adverse events, vital signs, and hematology and biochemistry variables. Efficacy variables included the changes from baseline in MSDBP and mean sitting systolic BP (MSSBP), the response rate (MSDBP <90 mm Hg, or a >or= 10-mm Hg reduction from baseline), and the rate of DBP control (<90 mm Hg). The overall rate of BP control (proportion of patients with MSSBP/MSDBP <140/90 mm Hg) was evaluated in a post hoc analysis. Efficacy variables were summarized at each visit and at the end of the study (week 6, applying last-observation-carried-forward methodology) using descriptive statistics for the intent-to-treat population (all randomized patients with a baseline BP measurement and at least 1 post baseline BP measurement). Subgroup analyses of BP changes were performed in prespecified age groups (<65 and >or=65 years) and post hoc in patients with a baseline systolic BP <180 and >or=180 mm Hg.

RESULTS: : Of 130 patients who were randomized to treatment, 128 completed the study: 63 in the amlodipine + valsartan group and 65 in the lisinopril + HCTZ group. The majority of patients in both groups were white (amlodipine + valsartan: 59.4% lisinopril + HCTZ: 60.6%) and female (57.8% and 54.5%, respectively). The mean age was similar in the 2 groups (56.5 and 57.6 years), as was the mean weight (85.1 and 82.0 kg). Both regimens were generally well tolerated. Adverse events were mild to moderate in severity, and most were not considered related to study drug. At the 6-week end point, both the amlodipine + valsartan and lisinopril + HCTZ groups had achieved significant reductions from baseline in MSSBP (-35.8 [11.8] and -31.8 [14.7] mm Hg, respectively; both, P < 0.001) and MSDBP (-28.6 [7.7] and -27.6 [8.6] mm Hg; both, P < 0.001). Response rates were similar for the 2 treatment groups (100% and 95.5%), as were rates of DBP control (79.7% and 77.3%).

CONCLUSIONS: : The combinations of amlodipine 5 to 10 rug + valsartan 160 mg and lisinopril 10 to 20 mg + HCTZ 12.5 mg were well tolerated and efficacious, and both treatments were associated with achievement of BP goals in the majority of these adult patients with stage 2 hypertension.

Full Text Links

Find Full Text Links for this Article

Discussion

You are not logged in. Sign Up or Log In to join the discussion.

Related Papers

Remove bar
Read by QxMD icon Read
17472820
×

Save your favorite articles in one place with a free QxMD account.

×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"