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The Avoiding Cardiovascular events through COMbination therapy in Patients Living with Systolic Hypertension (ACCOMPLISH) trial: a comparison of first-line combination therapies.

Author(s): Weder AB

Affiliation(s): University of Michigan, Department of Internal Medicine, Division of Cardiovascular Medicine, 24 Frank Lloyd Wright Drive, PO Box 322, Lobby M, Ann Arbor, MI 48106, USA. aweder@umich.edu

Publication date & source: 2005-02, Expert Opin Pharmacother., 6(2):275-81.

Although multidrug therapy is required in order to achieve good blood pressure control in many hypertensives, there are no studies directly comparing fixed-dose combinations as initial therapy. The Avoiding Cardiovascular events through COMbination therapy in Patients Living with Systolic Hypertension (ACCOMPLISH) trial compares regimens of benazepril plus amlodipine versus benazepril plus hydrochlorothiazide, force-titrated to 40/10 and 40/25mg, respectively. A total of 12,600 high-risk hypertensives have been randomised and will be followed for 3 - 5years, during which cardiovascular events will be monitored. The investigators hypothesise that the benazepril plus amlodipine regimen will decrease cardiovascular events by 15% compared with benazepril plus hydrochlorothiazide. Recruitment began in 2003, and the trial is expected to end in 2008. The ACCOMPLISH trial shares important limitations with many other recent trials that will make it difficult to apply the results in clinical practice. These include the focus on high-risk hypertensive patients, in whom significant reductions in relative risk will translate into meaningful reductions in absolute risk: in lower-risk hypertensives with a low absolute risk, similar relative risk reductions may not be of great impact on the population disease burden. In ACCOMPLISH, as in most industry-sponsored clinical trials, the main goal appears to be market-driven: doses of drugs tested are not those available for clinical practice. The question asked, whether the combination of benazepril with either diuretic or dihydropyridine calcium channel blocker is more efficacious, is not a clinically compelling one. Finally, the univariate subgroup analyses proposed are unlikely to lead to an understanding of whether either combination has specific advantages for patients encountered clinically, most of whom have multiple risk factors. Thus, it appears that ACCOMPLISH, as with many recent pharmacological trials, will not greatly impact the treatment of hypertension.

Page last updated: 2006-01-31

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