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J Hum Hypertens. 1997 Aug;11(8):483-9.

Valsartan, a new angiotensin II antagonist for the treatment of essential hypertension: efficacy, tolerability and safety compared to an angiotensin-converting enzyme inhibitor, lisinopril.

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1
Rush-Presbyterian-St Luke's Medical Center, Chicago, IL 60612, USA.

Abstract

OBJECTIVE:

To compare the efficacy, safety and tolerability of valsartan to an angiotensin-converting enzyme (ACE) inhibitor, lisinopril, and placebo in patients with mild-to-moderate essential hypertension.

DESIGN:

A total of 734 men and women were randomised in this multicentre, double-blind, optional titration, parallel group trial. Volunteers received valsartan 80 mg (n = 364), lisinopril 10 mg (n = 187) or placebo (n = 183) daily for 4 weeks, with subsequent titration of dose depending on response to treatment (valsartan 80 mg titrated to valsartan 160 mg once daily or valsartan 80 mg twice daily, lisinopril 10 mg titrated to lisonopril 20 mg once daily). Patients were assessed at 4, 8 and 12 weeks.

MAIN OUTCOME MEASURES:

The primary variable was change from baseline in mean sitting diastolic blood pressure (SDBP). Other efficacy variables included sitting systolic blood pressure (SSBP) and percentage of 'successful' responders (SDBP <90 mm Hg or > or =10 mm Hg reduction from baseline).

RESULTS:

All active treatment groups were shown to demonstrate significant reductions in SDBP compared to placebo at endpoint of therapy (least mean square reduction from baseline: valsartan 80/160 mg: -5.25 mm Hg (Cl -7.17, -3.34, P< 0.001); valsartan 80/80 mg twice daily: -5.63 mm Hg (Cl -7.51, -3.75, P< 0.001); lisinopril 10/20 mg: -6.93 mm Hg, (Cl -8.81, -5.05, P< 0.001). There were no statistically significant differences between the active treatment groups at endpoint of therapy. In patients requiring titration to a higher dose (placebo n = 142, valsartan 80/80 twice daily n = 124, valsartan 80/160 n = 114, lisinopril 10/20 n = 120), there were no significant treatment differences between valsartan 160 mg given as a single daily dose or as 80 mg twice daily (P = 0.658). Both valsartan and lisinopril produced similarly high percentages of 'successful' responders at endpoint of therapy. A somewhat higher frequency of drug related cough was observed in lisinopril treated patients (8%) compared to valsartan (1.1%) or placebo (0.5%).

CONCLUSIONS:

Valsartan 80 mg daily, with titration to 160 mg daily as required, provides similar antihypertensive efficacy to lisinopril 10 mg daily with titration to 20 mg daily. Valsartan provides a new antihypertensive agent with comparable efficacy to lisinopril and appears to be associated with a reduced incidence of cough.

PMID:
9322828
[Indexed for MEDLINE]
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