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Tachycardia-Induced Cardiomyopathy As a Chronic Heart Failure Model in Swine
Published on: February 17, 2018
[Study PARADIGM-HF - a paradigm shift in the treatment of chronic heart failure]
Insights
Angiotensin-receptor neprilysin inhibitors (ARNIs) offer new hope for chronic heart failure treatment. The PARADIGM-HF trial demonstrated ARNIs significantly reduce cardiovascular death and heart failure hospitalizations.
Area of Science:
- Cardiology
- Pharmacology
Background:
- Chronic heart failure (CHF) remains a significant clinical challenge with limited therapeutic advancements.
- Current treatments for CHF have seen minimal progress in recent years.
Purpose of the Study:
- To evaluate the efficacy and safety of angiotensin-receptor neprilysin inhibitors (ARNIs) in patients with chronic heart failure.
- To assess the impact of dual renin-angiotensin-aldosterone (RAS) system and neprilysin inhibition on cardiovascular outcomes.
Main Methods:
- A large-scale, prospective, randomized, multicenter trial (PARADIGM-HF) involving over 8000 patients.
- Patients had stabilized chronic heart failure with systolic dysfunction (left ventricular ejection fraction ≤40% or 35%) and elevated natriuretic peptide levels.
- Comparison of ARNI (sacubitril-valsartan) treatment versus standard therapy.
Main Results:
- ARNI treatment resulted in a 20% reduction in the primary endpoint (cardiovascular death or hospitalization for heart failure).
- Significant benefits were observed in total and cardiovascular mortality, heart failure hospitalizations, and quality of life.
- The treatment was generally safe, with hypotension being the most common adverse event, rarely requiring treatment discontinuation.
Conclusions:
- Dual inhibition of the RAS and neprilysin with ARNIs represents a potential paradigm shift in the treatment of stable chronic heart failure with systolic dysfunction.
- ARNIs demonstrate significant improvements in major adverse cardiovascular events and mortality.
- The findings support ARNIs as a new therapeutic option for patients with heart failure and reduced ejection fraction.
Abstract:
Chronic heart failure is a crucial problem of current cardiology. Despite that, no major development has occurred in the therapy in recent years. In this regard, first results of studies with ARNI inhibitors (angiotensin-receptor neprilysin inhibitors) may be considered hopeful. Dual inhibition of AT1 receptors and neprilysin blocks renin-angiotensin-aldosteron (RAS) axis and concurrently supports natural vasodilatory and diuretic effect of natriuretic peptides. Large-scale prospective randomized multicenter trial PARADIGM-HF with more than 8000 individuals with stabilized chronic heart failure with systolic dysfunction (LV EF 40%, later 35%), mostly in functional class NYHA II-III with elevated BNP/NT-pro BNP has shown 20% decrease in primary endpoint (cardiovascular death or hospitalization for heart failure) in a group treated by ARNI (LCZ696; sacubiltril - valsartan). Beneficial effect of ARNI was consistent also for total and cardiovascular mortality, for hospitalization for heart failure and in other pre-specified subgroup analyses, including quality of life. The treatment was safe, typical adverse event was hypotension, however without a need to interrupt the treatment. Dual RAS and neprilysin inhibition might thus after long time become a change in stable chronic heart failure with systolic dysfunction treatment "paradigm". Czech Republic significantly contributed to this study and all study sites should be congratulated and thanked for their high-quality work provided.
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