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Published on: September 19, 2016
RAAS inhibitors and cardiovascular protection in large scale trials
Thomas G von Lueder1, Henry Krum
1Department of Epidemiology and Preventive Medicine, Monash Centre of Cardiovascular Research and Education in Therapeutics, Monash University, Alfred Hospital, Melbourne, VIC, 3004, Australia.
Insights
Cardiovascular diseases are prevalent, increasing the need for cardioprotection. Drugs targeting the renin-angiotensin-aldosterone system (RAAS), such as ACE inhibitors and ARBs, are key to achieving this protection.
Area of Science:
- Cardiology
- Pharmacology
- Nephrology
Background:
- Cardiovascular diseases (CVD), including hypertension, coronary artery disease, and heart failure, are leading causes of morbidity and mortality.
- The global rise in CVD is exacerbated by aging populations and the diabetes pandemic, highlighting the need for cardioprotective strategies.
- The renin-angiotensin-aldosterone system (RAAS) plays a critical role in regulating blood pressure, cardiovascular, and renal function.
Purpose of the Study:
- To review evidence from large clinical trials on cardioprotection achieved through blockade of the renin-angiotensin-aldosterone system (RAAS).
- To assess the efficacy of various RAAS-targeting drugs in preventing cardiovascular events and improving outcomes.
Main Methods:
- Review of large-scale clinical trials evaluating RAAS-blocking agents.
- Analysis of data on the cardioprotective effects of Angiotensin-converting enzyme inhibitors (ACEi), Ang-II receptor blockers (ARB), and mineralocorticoid receptor antagonists (MRA).
- Inclusion of emerging therapies like direct renin inhibitors and dual-acting RAAS blockers.
Main Results:
- RAAS blockade, through agents like ACEi, ARBs, and MRAs, has demonstrated significant cardioprotective benefits in numerous clinical trials.
- These agents, used singly or in combination, effectively reduce cardiovascular morbidity and mortality in patients with or at risk of CVD.
- Ongoing research is exploring novel RAAS-targeting drugs for enhanced cardioprotection.
Conclusions:
- RAAS blockade is a cornerstone of modern cardiovascular disease management, offering substantial cardioprotection.
- Targeting the RAAS is essential for managing hypertension, heart failure, and preventing future cardiovascular events.
- Continued investigation into RAAS-modulating therapies promises further advancements in cardiovascular care.
Abstract:
Hypertension, coronary artery disease and heart failure affect over half of the adult population in most Western societies, and are prime causes of CV morbidity and mortality. With the ever-increasing worldwide prevalence of CV disease due to ageing and the "diabetes" pandemic, guideline groups have recognized the importance of achieving cardioprotection in affected individuals as well as in those at risk for future CV events. The renin-angiotensin-aldosterone system (RAAS) is the most important system controlling blood pressure (BP), cardiovascular and renal function in man. As our understanding of the crucial role of RAAS in the pathogenesis of most, if not all, CV disease has expanded over the past decades, so has the development of drugs targeting its individual components. Angiotensin-converting enzyme inhibitors (ACEi), Ang-II receptor blockers (ARB), and mineralcorticoid receptor antagonists (MRA) have been evaluated in large clinical trials for their potential to mediate cardioprotection, singly or in combination. Direct renin inhibitors are currently under scrutiny, as well as novel dual-acting RAAS-blocking agents. Herein, we review the evidence generated from large-scale clinical trials of cardioprotection achieved through RAAS-blockade.
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