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Will more complete inhibition of the RAAS with angiotensin receptor blockade improve survival following myocardial infarction?
Marc A Pfeffer
Harvard Medical School, Cardiovascular Division, Brigham and Women's Hospital, Boston, USA, mpfeffer@ rics.bwh.harvard.edu
Angiotensin-converting enzyme (ACE) inhibitors have a well-established role in the management of patients with hypertension, diabetes, heart failure and myocardial infarction (MI). ACE inhibitors have been particularly well studied in acute and chronic MI with consistent and substantial survival benefits demonstrated, particularly in the higher risk groups. The recent development of angiotensin II (Ang II) receptor blockers (ARBs) as a well tolerated pharmacological therapy to more completely inhibit the actions of Ang II at the AT1-receptor level raises questions concerning comparative efficacy with the proven ACE inhibitor experience. Two major trials will provide a direct comparison of ARBs with an ACE inhibitor. The Valsartan in Acute Myocardial Infarction (VALIANT) trial is specifically designed to compare and contrast the ARB, valsartan, used both alone as well as in combination with a proven ACE inhibitor regimen, in a high risk MI population. VALIANT, with its three arms targetting 14,500 patients, is uniquely poised to determine whether the pharmacological advance in the development of ARBs confers additional clinical (survival) value in high risk MI patients.
Key Words: angiotensin II receptor blocker myocardial infarction long-term trial valsartan OPTIMAAL VALIANT
References
- Pfeffer JM, Pfeffer MA, Braunwald E. Influence of chronic captopril therapy on the infarcted left ventricle of the rat. Circ Res 1985;57:84-95.[Abstract/Free Full Text]
- Pfeffer MA ACE inhibition in acute myocardial infarction. [Editorial]. N Engl J Med 1995;332:118-20.[Free Full Text]
- Flather MD, Yusuf S., Kober L. et al. for the ACE-inhibitor Myocardial Infarction Collaborative Group. Long-term ACE-inhibitor therapy in patients with heart failure or left-ventricular dysfunction: a systematic overview of data from individual patients Lancet 2000;355:1575-81.[CrossRef][Web of Science][Medline]
[Order article via Infotrieve]
- Pfeffer MA, Braunwald E., Moyé LA et al. on behalf of the SAVE Investigators. The effect of captopril on mortality and morbidity in patients with left ventricular dysfunction after myocardial infarction. Results of the Survival and Ventricular Enlargement Trial. N Engl J Med 1992;327:669-77.[Abstract]
- Yusuf S., Pepine CJ, Garces C. et al. Effect of enalapril on myocardial infarction and unstable angina in patients with low ejection fractions. Lancet 1992;340:1173-8.[CrossRef][Web of Science][Medline]
[Order article via Infotrieve]
- Yusuf S., Sleight P., Pogue, JE et al. Effects of an angiotensin-converting-enzyme inhibitor, ramipril, on cardiovascular events in high-risk patients. The Heart Outcomes Prevention Evaluation Study Investigators. N Engl J Med 2000;342:145-53.[Abstract/Free Full Text]
- Gainer JV, Morrow JD, Loveland A., King DJ, Brown NJ Effect of bradykinin-receptor blockade on the response to angiotensin-converting-enzyme inhibitor in normotensive and hypertensive subjects.NEnglJMed 1998;339:1285-92.[Abstract/Free Full Text]
- Dickstein K., Kjekshus J. Comparison of the effects of losartan and captopril on mortality in patients after acute myocardial infarction: the OPTIMAAL trial design. Optimal Therapy in Myocardial Infarction with the Angiotensin II Antagonist Losartan. Am J Cardiol 1999;83:477-81.[CrossRef][Web of Science][Medline]
[Order article via Infotrieve]
- Pfeffer MA, McMurray J., Leizorovicz A. et al. for the VALIANT Investigators. Valsartan in Acute Myocardial Infarction Trial (VALIANT): Rationale and Design. Am Heart J2000; 140: 727-34.
- Pitt B., Segal R., Martinez FA, Meurers G. et al. Randomised trial of losartan versus captopril in patients over 65 with heart failure (Evaluation of Losartan in the Elderly Study, ELITE). Lancet 1997;349:747-52.[CrossRef][Web of Science][Medline]
[Order article via Infotrieve]
Journal of Renin-Angiotensin-Aldosterone System, Vol. 1, No. 2 suppl,
S41-S43 (2000)
DOI: 10.3317/jraas.2000.056

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