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  • Title: Dual therapy in hypertensive patients with coronary artery disease: the role of calcium channel blockers and beta-blockers.
    Author: Bakris GL, Cooper-Dehoff RM, Zhou Q, Kupfer S, Champion A, Pepine CJ, INVEST Investigators.
    Journal: Am J Cardiovasc Drugs; 2007; 7 Suppl 1():25-9. PubMed ID: 19845074.
    Abstract:
    BACKGROUND: The majority of hypertensive patients require combination therapy to achieve BP goals. Guidelines recommend dual therapy in newly diagnosed patients with BP > 160/100mm Hg. Calcium channel blocker (CCB)/ACE inhibitor and beta-blocker (beta-adrenoceptor antagonists)/diuretic combinations are among regimens considered effective for BP control. ACE inhibitors, beta-blockers, and CCBs are recommended for use in patients after myocardial infarction (MI). Statistical modeling from INVEST (INternational VErapamil-Trandolapril STudy), suggests an association between dual and triple therapy and decreased risk of primary outcome ([PO] first occurrence of death, nonfatal MI, or nonfatal stroke) in patients with hypertension and coronary artery disease (CAD). OBJECTIVE AND METHODS: This study explores the utility of dual antihypertensive therapy by reporting BP and cardiovascular outcomes for INVEST patients who predominantly received either a CCB/ACE inhibitor or a beta-blocker/ diuretic regimen. RESULTS: 1170 patients were selected for analysis. After 24 months of treatment, BP control (Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure VI criteria) was 82.1% and 82.6% in the verapamil sustained release (SR) + trandolapril (Ve + Tr) and atenolol + hydrochlorothiazide (At + HCTZ) groups, respectively (p = 0.86). In Ve + Tr compared to At + HCTZ patients, adjusted risk for PO (hazard ratio [HR] 0.63; 95% CI 0.37, 1.05; p = 0.07) and unadjusted risks for secondary outcomes including death (HR 0.70; 95% CI 0.40, 1.25), total MI (HR 0.82; 95% CI 0.35, 1.90), total stroke (HR 0.81; 95% CI 0.25, 2.65) and new diabetes (HR 0.88; 95% CI 0.55, 1.41) were not statistically different. CONCLUSION: This analysis shows that combination treatment with either Ve+ Tr or At +- HCTZ is effective in achieving BP control and produces similar outcomes in hypertensive patients with CAD.
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