scholarly journals Mechanisms and Models in Heart Failure

2021 ◽  
Vol 128 (10) ◽  
pp. 1435-1450
Author(s):  
Douglas L. Mann ◽  
G. Michael Felker
Keyword(s):  
Heart Failure ◽  
Conceptual Models ◽  
Soluble Guanylate Cyclase ◽  
Clinical Development ◽  
Sglt2 Inhibitors ◽  
Phase Iii ◽  
Development Programs ◽  
Reduced Ejection Fraction ◽  
Therapeutic Class ◽  
Cardiovascular Therapeutics

Despite multiple attempts to develop a unifying hypothesis that explains the pathophysiology of heart failure with a reduced ejection fraction (HFrEF), no single conceptual model has withstood the test of time. In the present review, we discuss how the results of recent successful phase III clinical development programs in HFrEF are built upon existing conceptual models for drug development. We will also discuss where recent successes in clinical trials do not fit existing models to identify areas where further refinement of current paradigms may be needed. To provide the necessary structure for this review, we will begin with a brief overview of the pathophysiology of HFrEF, followed by an overview of the current conceptual models for HFrEF, and end with an analysis of the scientific rationale and clinical development programs for 4 new therapeutic classes of drugs that have improved clinical outcomes in HFrEF. The 4 new therapeutic classes discussed are ARNIs, SGLT2 (sodium-glucose cotransporter 2) inhibitors, soluble guanylate cyclase stimulators, and myosin activators. With the exception of SGLT2 inhibitors, each of these therapeutic advances was informed by the insights provided by existing conceptual models of heart failure. Although the quest to determine the mechanism of action of SGLT2 inhibitors is ongoing, this therapeutic class of drugs may represent the most important advance in cardiovascular therapeutics of recent decades and may lead to rethinking or expanding our current conceptual models for HFrEF.

SGLT2 inhibitors in patients with heart failure with reduced ejection fraction: a meta-analysis of the EMPEROR-Reduced and DAPA-HF trials

The Lancet ◽  
2020 ◽  
Vol 396 (10254) ◽  
pp. 819-829 ◽  
Author(s):  
Faiez Zannad ◽  
João Pedro Ferreira ◽  
Stuart J Pocock ◽  
Stefan D Anker ◽  
Javed Butler ◽  
...  
Keyword(s):  
Heart Failure ◽  
Ejection Fraction ◽  
Meta Analysis ◽  
Sglt2 Inhibitors ◽  
Reduced Ejection Fraction ◽  
Patients With Heart Failure

scholarly journals Cost-effectiveness of sacubitril/valsartan in the treatment of heart failure with reduced ejection fraction

Heart ◽  
2017 ◽  
Vol 104 (12) ◽  
pp. 1006-1013 ◽  
Author(s):  
John J V McMurray ◽  
David Trueman ◽  
Elizabeth Hancock ◽  
Martin R Cowie ◽  
Andrew Briggs ◽  
...  
Keyword(s):  
Heart Failure ◽  
Sensitivity Analysis ◽  
Cost Effectiveness ◽  
Ejection Fraction ◽  
Willingness To Pay ◽  
Cost Effective ◽  
Phase Iii ◽  
Reduced Ejection Fraction ◽  
The Uk ◽  
The Cost

ObjectiveChronic heart failure with reduced ejection fraction (HF-REF) represents a major public health issue and is associated with considerable morbidity and mortality. We evaluated the cost-effectiveness of sacubitril/valsartan (formerly LCZ696) compared with an ACE inhibitor (ACEI) (enalapril) in the treatment of HF-REF from the perspective of healthcare providers in the UK, Denmark and Colombia.MethodsA cost-utility analysis was performed based on data from a multinational, Phase III randomised controlled trial. A decision-analytic model was developed based on a series of regression models, which extrapolated health-related quality of life, hospitalisation rates and survival over a lifetime horizon. The primary outcome was the incremental cost-effectiveness ratio (ICER).ResultsIn the UK, the cost per quality-adjusted life-year (QALY) gained for sacubitril/valsartan (using cardiovascular mortality) was £17 100 (€20 400) versus enalapril. In Denmark, the ICER for sacubitril/valsartan was Kr 174 000 (€22 600). In Colombia, the ICER was COP$39.5 million (€11 200) per QALY gained. Deterministic sensitivity analysis showed that results were most sensitive to the extrapolation of mortality, duration of treatment effect and time horizon, but were robust to other structural changes, with most scenarios associated with ICERs below the willingness-to-pay threshold for all three country settings. Probabilistic sensitivity analysis suggested the probability that sacubitril/valsartan was cost-effective at conventional willingness-to-pay thresholds was 68%–94% in the UK, 84% in Denmark and 95% in Colombia.ConclusionsOur analysis suggests that, in all three countries, sacubitril/valsartan is likely to be cost-effective compared with an ACEI (the current standard of care) in patients with HF-REF.

scholarly journals EMPEROR-Preserved: SGLT2 inhibitors breakthrough in the management of heart failure with preserved ejection fraction

2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
Kerolos Wagdy ◽  
Sherif Nagy
Keyword(s):  
Heart Failure ◽  
Ejection Fraction ◽  
Complex Disease ◽  
Hospital Admissions ◽  
Sglt2 Inhibitor ◽  
Cardiovascular Death ◽  
Sglt2 Inhibitors ◽  
Preserved Ejection Fraction ◽  
Reduced Ejection Fraction ◽  
Sglt2 Inhibition

Background: Heart failure with preserved ejection fraction (HFpEF) is a complex disease which accounts for more than half of all HF hospital admissions with high prevalence and lack of effective evidence-based management. Sodium-glucose cotransporter 2 (SGLT2) inhibitor is a new antidiabetic drug that recently gained a new role in the management of heart failure with reduced ejection fraction but its role in HFpEF had yet to be studied.Study and results: EMPEROR-Preserved trial set out to evaluate the effects of SGLT2 inhibition with empagliflozin on major heart failure outcomes in patients with HFpEF. The patients were randomized in a 1:1 fashion into two groups; to receive either empagliflozin 10 mg per day (n = 2,997) or placebo (n = 2,991) in addition to usual therapy. Empagliflozin led to a 21% risk reduction of the composite of cardiovascular death or hospitalization for heart failure, which was mainly related to a 29% lower risk of hospitalization for heart failure rather than effect on cardiovascular death empagliflozin. The effects SGLT2 inhibitors were consistent in all patients.

scholarly journals Effects of SGLT2 inhibitors on cardiovascular outcomes in patients with stage 3/4 CKD: A meta-analysis

PLoS ONE ◽  
2022 ◽  
Vol 17 (1) ◽  
pp. e0261986
Author(s):  
Ning Li ◽  
Guowei Zhou ◽  
Yawei Zheng ◽  
Dan Lv ◽  
Xiangjun Zhu ◽  
...  
Keyword(s):  
Heart Failure ◽  
Type 2 Diabetes ◽  
Cardiovascular Disease ◽  
Ejection Fraction ◽  
Cardiovascular Outcomes ◽  
Sglt2 Inhibitors ◽  
Atherosclerotic Cardiovascular Disease ◽  
Reduced Ejection Fraction ◽  
Stage 4

Introduction After stage 3 CKD, the risk of adverse cardiovascular events increased significantly. Therefore, we performed a meta-analysis to investigate the cardiovascular protective effect of SGLT2 inhibitors in patients with stage 3/4 CKD with different baseline kidney function or underlying diseases. Method To identify eligible trials, we systematically searched the Embase, PubMed, Web of Science, and Cochrane library databases from inception to April 15, 2021. The primary cardiovascular outcome was defined as a combination of cardiovascular mortality and hospitalization due to heart failure. Baseline kidney functions (stage 3a CKD: eGFR45-59mL/min per 1.73m2, stage 3b CKD: eGFR30-44mL/min per 1.73m2, stage 4 CKD: eGFR<30mL/min per 1.73m2) and underlying diseases (Type 2 diabetes, heart failure (Preserved ejection fraction or reduced ejection fraction), atherosclerotic cardiovascular disease) were used to stratify efficacy and safety outcomes. The results were subjected to a sensitivity analysis to ensure that they were reliable. Results In the present study, a total of eleven trials were included that involved a total of 27,823 patients with stage 3/4 CKD. The treatment and control groups contained 14,451 and 13,372 patients, respectively. In individuals with stage 3/4 CKD, SGLT2 inhibitors reduced the risk of primary cardiovascular outcomes by 26% (HR 0.74, [95% CI 0.69–0.80], I2 = 0.00%), by 30% in patients with stage 3a CKD (HR 0.70, [95% CI 0.59–0.84], I2 = 18.70%), by 23% in patients with stage 3b CKD (HR 0.77, [95% CI 0.66–0.90], I2 = 2.12%), and by 29% in patients with stage 4 CKD (HR 0.71, [95% CI 0.53–0.96], I2 = 0.00%). The risk of primary outcomes was reduced by 29% (HR 0.71, [95% CI 0.63–0.80], I2 = 0.00%) in patients with type 2 diabetes, by 28% (HR 0.72, [95% CI 0.56–0.93], I2 = 37.23%) in patients with heart failure with preserved ejection fraction, by 21% (HR 0.79, [95% CI 0.70–0.89], I2 = 0.00%) in patients with heart failure with reduced ejection fraction, and by 25% (HR 0.75, [95% CI 0.64–0.88], I2 = 0.00%) in patients with atherosclerotic cardiovascular disease. Conclusions For stage 3/4 CKD, SGLT2 inhibitors significantly decreased the risk of primary cardiovascular outcomes, and these benefits were consistent throughout the spectrum of different kidney functions, even in stage 4 CKD. There was no evidence of increased adverse outcomes across different baseline clinical complications, such as type 2 diabetes, heart failure, or atherosclerotic cardiovascular disease.

scholarly journals Nitric oxide — soluble guanylate cyclase — cyclic guanosine monophosphate signaling pathway in the pathogenesis of heart failure and search for novel therapeutic targets

2021 ◽  
Vol 20 (6) ◽  
pp. 3035
Author(s):  
Zh. D. Kobalava ◽  
P. V. Lazarev
Keyword(s):  
Heart Failure ◽  
Signaling Pathway ◽  
Guanylate Cyclase ◽  
Soluble Guanylate Cyclase ◽  
Severe Disease ◽  
Cyclic Guanosine Monophosphate ◽  
Guanosine Monophosphate ◽  
Phase Iii ◽  
Beneficial Effects ◽  
Stimulation Of

Heart failure is a severe disease with an unfavorable prognosis, which requires intensification of therapy and the search for novel approaches to treatment. In this review, the physiological significance of soluble guanylate cyclase-related signaling pathway, reasons for decrease in its activity in heart failure and possible consequences are discussed. Pharmacological methods of stimulating the production of cyclic guanosine monophosphate using drugs with different mechanisms of action are considered. Data from clinical studies regarding their effectiveness and safety are presented. A promising approach is stimulation of soluble guanylate cyclase, which showed beneficial effects in preclinical studies, as well as in the recently completed phase III VICTORIA study.

scholarly journals Mechanisms and Perspectives of Sodium-Glucose Co-transporter 2 Inhibitors in Heart Failure

2021 ◽  
Vol 8 ◽  
Author(s):  
Qingchun Zeng ◽  
Qing Zhou ◽  
Weitao Liu ◽  
Yutong Wang ◽  
Xingbo Xu ◽  
...  
Keyword(s):  
Heart Failure ◽  
Ejection Fraction ◽  
Large Scale ◽  
Heart Diseases ◽  
Cardiovascular Death ◽  
Serum Glucose ◽  
Clinical Syndrome ◽  
Sglt2 Inhibitors ◽  
Reduced Ejection Fraction ◽  
Beneficial Effects

Heart failure (HF) is a common complication or late-stage manifestation of various heart diseases. Numerous risk factors and underlying causes may contribute to the occurrence and progression of HF. The pathophysiological mechanisms of HF are very complicated. Despite accumulating advances in treatment for HF during recent decades, it remains an intractable clinical syndrome with poor outcomes, significantly reducing the quality of life and expectancy of patients, and imposing a heavy economic burden on society and families. Although initially classified as antidiabetic agents, sodium-glucose co-transporter 2 (SGLT2) inhibitors have demonstrated reduced the prevalence of hospitalization for HF, cardiovascular death, and all-cause death in several large-scale randomized controlled clinical trials. These beneficial effects of SGLT-2 inhibitors can be attributed to multiple hemodynamic, inflammatory and metabolic mechanisms, not only reducing the serum glucose level. SGLT2 inhibitors have been used increasingly in treatment for patients with HF with reduced ejection fraction due to their surprising performance in improving the prognosis. In addition, their roles and mechanisms in patients with HF with preserved ejection fraction or acute HF have also attracted attention. In this review article, we discuss the possible mechanisms and applications of SGLT2 inhibitors in HF.

Cardio-protective effects of sodium-glucose co-transporter 2 inhibitors: focus on heart failure

2020 ◽  
Vol 26 ◽  
Author(s):  
Dimos Karangelis ◽  
C. David Mazer ◽  
Dimitrios Stakos ◽  
Aphrodite Tzifa ◽  
Spiros Loggos ◽  
...  
Keyword(s):  
Heart Failure ◽  
Large Scale ◽  
Mechanisms Of Action ◽  
Sglt2 Inhibitors ◽  
Protective Effects ◽  
Reduced Ejection Fraction ◽  
Risk Of Death ◽  
Sodium Glucose Cotransporter ◽  
Myocardial Energetics

Background: Type 2 diabetes mellitus (DM) is associated with a considerable risk of cardiovascular and renal disease, including heart failure. Sodium–glucose cotransporter 2 (SGLT2) inhibitors have demonstrated unprecedented cardiorenal protective effects in large scale clinical trials of patients with or without diabetes and either established cardiovascular disease (CV) or multiple CV risk factors. Objective: Herein we aim to focus on the role of SGLT2 inhibitors regarding the improvement in heart failure outcomes and the proposed mechanisms of action by which these drugs confer their beneficial effect. Methods: PubMed, Embase and Google Scholar databases were searched to identify eligible articles which are comprehensively summarized and discussed. Results: The most commonly discussed mechanisms of action are diuresis and natriuresis, reduction in preload, afterload, and ventricular mass, as well as stimulation of erythropoietin production and improved myocardial energetics. SGLT2 inhibitors improve outcomes in patients with established heart failure (HF) and reduce the risk of death and HF admissions in patients with established chronic HF with reduced ejection fraction (HFrEF), either with or without diabetes. Conclusion: Potential key mechanisms that may explain the notable cardioprotective benefits of SGLT2 inhibitors have been outlined. These agents have recently received class Ia recommendation in specific groups of people with DM to lower the risk of hospitalization for HF and risk of death, while these benefits may also extend to people without diabetes. It remains to be seen whether they will also emerge as treatment approaches in the acute phase of CV episodes.

Heart failure with preserved ejection fraction

ESC CardioMed ◽  
2018 ◽  
pp. 1897-1902
Author(s):  
Maja Cikes ◽  
Scott D. Solomon
Keyword(s):  
Heart Failure ◽  
Ejection Fraction ◽  
Phase Ii ◽  
Soluble Guanylate Cyclase ◽  
Diuretic Therapy ◽  
Signs And Symptoms ◽  
Isosorbide Mononitrate ◽  
Preserved Ejection Fraction ◽  
Phase Ii Trials ◽  
Reduced Ejection Fraction

Heart failure with preserved ejection fraction (HFpEF) is a diverse syndrome characterized by signs and symptoms of heart failure with relatively preserved ejection fraction. Despite the established efficacy of numerous classes of drugs and devices in heart failure with reduced ejection fraction, no specific therapy has yet proven to reduce morbidity and mortality in HFpEF. Currently, treatment of HFpEF remains empiric, and includes diuretic therapy for decongestion, treatment of hypertension, diagnosis and treatment of ischaemia, rate control for atrial fibrillation, and treatment of co-morbidities. While outcomes trials in HFpEF have tested renin–angiotensin–aldosterone inhibitors, and none have met their primary endpoint, there is some evidence that in appropriate patients, the mineralocorticoid receptor antagonist spironolactone may be helpful to reduce heart failure hospitalizations. Several other medications have been tested in phase II trials. Sildenafil, isosorbide mononitrate, and the soluble guanylate cyclase stimulator vericiguat did not show benefit in phase II trials. In contrast, sacubitril/valsartan was associated with a significant decrease in N-terminal pro-B-type natriuretic peptide values and improvement in left atrial size in a phase II trial. A large phase III trial to confirm these findings is under way.

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