Role of Angiotensin Receptor-Neprilysin Inhibition in Heart Failure
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Updated: Mar 19, 2026

Improved Renal Denervation Mitigated Hypertension Induced by Angiotensin II Infusion
Published on: May 26, 2022
Stuart B Prenner1, Sanjiv J Shah1, Clyde W Yancy2
1Division of Cardiology, Bluhm Cardiovascular Institute, Northwestern Memorial Hospital, Northwestern University Feinberg School of Medicine, 676 N St. Clair, Suite 600, Chicago, IL, 60611, USA.
Insights
The combination of valsartan and sacubitril (LCZ696) significantly reduces cardiovascular mortality in heart failure with reduced ejection fraction (HFrEF) patients compared to ACE inhibitors. This novel therapy offers substantial benefits, though careful patient selection is needed due to potential hypotension.
Area of Science:
- Cardiology
- Pharmacology
- Heart Failure Research
Background:
- Heart failure with reduced ejection fraction (HFrEF) management has advanced with numerous therapies.
- The introduction of valsartan and sacubitril (LCZ696) in 2015 marked a significant shift in HFrEF treatment.
- LCZ696 is a novel drug inhibiting both the renin-angiotensin system and potentiating the natriuretic peptide system.
Purpose of the Study:
- To evaluate the efficacy and safety of LCZ696 compared to traditional therapies for HFrEF.
- To assess the impact of LCZ696 on cardiovascular mortality and morbidity.
- To explore the novel mechanistic approach of LCZ696 in heart failure management.
Main Methods:
- The Prospective Comparison of ARNI with ACE-I to Determine Impact on Global Mortality and Morbidity in Heart Failure (PARADIGM-HF) trial was a key study.
- Comparison of LCZ696 against an angiotensin-converting enzyme (ACE) inhibitor was performed.
- Patient outcomes including cardiovascular mortality, total mortality, and morbidity were assessed.
Main Results:
- LCZ696 demonstrated a 20% reduction in cardiovascular mortality (NNT 32) and total mortality (NNT 36) compared to ACE inhibitors.
- Morbidity benefits were observed as early as 1 month after initiating LCZ696.
- Hypotension affected 20% of patients during the run-in phase, and angioedema was a safety concern.
Conclusions:
- LCZ696 represents a significant advancement in HFrEF treatment, offering superior outcomes to ACE inhibitors.
- The drug's novel dual mechanism provides substantial cardiovascular benefits.
- Further research is ongoing to evaluate LCZ696 in other cardiovascular populations, including heart failure with preserved ejection fraction.
Purpose Of Review:
Numerous evidence-based medical and device therapies proven to reduce morbidity and mortality have advanced care for heart failure with reduced ejection fraction (HFrEF). The primacy of this approach has now been superseded by striking new data resulting in the approval of the combination of valsartan and sacubitril, a neprilysin inhibitor (also known as LCZ696), in 2015 for the treatment of HFrEF. LCZ696 is a novel heart failure drug that simultaneously inhibits the renin-angiotensin system and potentiates the natriuretic peptide system.
Recent Findings:
In the Prospective Comparison of ARNI with ACE-I to Determine Impact on Global Mortality and Morbidity in Heart Failure (PARADIGM-HF) trial, LCZ696 significantly improved cardiovascular outcomes compared to current guideline-directed medical therapy. Compared to an angiotensin-converting enzyme (ACE) inhibitor, LCZ696 was associated with a 20 % reduction in cardiovascular mortality (number needed to treat [NNT] 32) and a similar reduction in total mortality (NNT 36). Morbidity benefits of the drug were seen within 1 month of initiation. However, hypotension due to enalapril or the LCZ696 regimen during a run-in phase eliminated 20 % of patients. Safety concerns included the risk of angioedema and the theoretical concern of neurocognitive dysfunction due to the protean effects of neprilysin inhibition. The role of LCZ696 in patients with asymptomatic left ventricular systolic dysfunction is uncertain. LCZ696 is currently being evaluated in patients with heart failure with preserved ejection fraction, with promising initial results. LCZ696 represents a novel mechanistic approach to targeting heart failure with reduced ejection fraction, and ongoing studies will address its use in other cardiovascular populations.
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