Emerging therapies for heart failure

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Abstract
Although multiple advancements have been made in the treatment of heart failure (HF), mortality rates remain alarmingly high. The accepted arsenal of therapeutics includes a diuretic, digitalis, a beta-blocking agent and an inhibitor of the renin-angiotensin-aldosterone system. Despite the employment of a vast array of agents, nearly 300,000 patients in the US die annually with HF as a primary or contributory cause of death. Additional molecular targets are being evaluated in preclinical and clinical settings including vasopeptidase inhibitors, endothelin-1 receptor antagonists, arginine vasopressin antagonists, selective aldosterone blockers, TNF-alpha blockers and matrix metalloproteinase inhibitors. Although these approaches hold promise as viable therapeutics, a thorough evaluation of clinical benefit from these agents requires additional trials. Future disease-modifying approaches will also undoubtedly include cell transplantation and gene therapy. It is likely that notable advances in HF treatment will come from agents that attenuate myocardial remodelling. Indeed, maintenance or improvement of cardiac structure can attenuate HF development and improve mortality.