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LCZ696, a First-in-Class Angiotensin Receptor-Neprilysin Inhibitor: The First Clinical Experience in Patients With Severe Hypertension.

ABSTRACT: The safety of LCZ696, a novel angiotensin receptor-neprilysin inhibitor, was evaluated for the first time in patients with severe hypertension in this 8-week, multicenter, open-label study. Thirty-five Japanese patients with either office systolic blood pressure (SBP) ≥180 mm Hg or diastolic blood pressure (DBP) ≥110 mm Hg received LCZ696 200 mg. If blood pressure was uncontrolled, the LCZ696 dose was increased to 400 mg after 2 weeks (if there were no safety concerns; n=32), followed by an optional addition of another antihypertensive drug (except angiotensin receptor blocker and angiotensin-converting enzyme inhibitor) after 4 weeks (n=21). Reductions in office SBP/DBP (baseline, 173.4 mm Hg/112.4 mm Hg) and pulse pressure (baseline, 61.0 mm Hg) at week 8 were 35.3/22.1 mm Hg and 13.2 mm Hg, respectively. The overall incidence of adverse events was 48.6% with no reports of dizziness, hypotension, or angioedema. The LCZ696-based regimen was generally well-tolerated and could present a treatment option for severe hypertension in Asian patients especially in reducing SBP and pulse pressure.

SUBMITTER: Kario K

PROVIDER: S-EPMC8032009 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Safety and efficacy of LCZ696, a first-in-class angiotensin receptor neprilysin inhibitor, in Japanese patients with hypertension and renal dysfunction.

Project description:This 8-week, multi-center, open-label study assessed the safety and efficacy of LCZ696, a first-in-class angiotensin receptor neprilysin inhibitor, in Japanese patients with hypertension and renal dysfunction. Patients (n=32) with mean sitting systolic blood pressure (msSBP) ⩾140 mm Hg (after a 2-5-week washout of previous antihypertensive medications) and estimated glomerular filtration rate (eGFR) ⩾15 and <60 ml min(-1) 1.73 m(-2) received LCZ696 100 mg with an optional titration to 200 and 400 mg in a sequential manner starting from Week 2 in patients with inadequate BP control (msSBP ⩾130 mm Hg and mean sitting diastolic blood pressure (msDBP) ⩾80 mm Hg) and without safety concerns. Safety was assessed by monitoring and recording all adverse events (AEs) and change in potassium and creatinine. Efficacy was assessed as change from baseline in msSBP/msDBP. The mean baseline BP was 151.6/86.9 mm Hg, urinary albumin/creatinine ratio (UACR) geometric mean was 7.3 mg mmol(-1) and eGFR was ⩾30 and <60 in 25 (78.1%) patients and was ⩾15 and <30 in 7 (21.9%) patients. Fourteen (43.8%) patients reported at least one AE, which were mild in severity. No severe AEs or deaths were reported. There were no clinically meaningful changes in creatinine, potassium, blood urea nitrogen and eGFR. The geometric mean reduction in UACR was 15.1%, and the mean reduction in msSBP and msDBP was 20.5±11.3 and 8.3±6.3 mm Hg, respectively, from baseline to Week 8 end point. LCZ696 was generally safe and well tolerated and showed effective BP reduction in Japanese patients with hypertension and renal dysfunction without a decline in renal function.

| S-EPMC4396400 | biostudies-literature

LCZ696, an angiotensin receptor-neprilysin inhibitor, ameliorates diabetic cardiomyopathy by inhibiting inflammation, oxidative stress and apoptosis.

Project description: Not available

| S-EPMC6879777 | biostudies-literature

The angiotensin receptor and neprilysin inhibitor, LCZ696, in heart failure: A meta-analysis of randomized controlled trials.

Project description:BackgroundLCZ696 is a novel neuroendocrine inhibitor that has been widely used in heart failure (HF). However, its advantage over other neuroendocrine inhibitors, such as angiotensin-converting enzyme inhibitors (ACEis) and angiotensin-receptor blockers (ARBs) has not been fully elucidated. This study aimed to provide the latest evidence regarding the efficacy and safety of LCZ696 as compared to other ACEis and ARBs with regards to the treatment of HF.MethodsWe systematically searched databases, including PubMed, Embase, and the Cochrane Library, for relevant randomized controlled trials (RCTs). The outcome measures included all-cause mortality, rate of hospitalizations for HF, rate of death from cardiovascular causes, change in N-terminal pro-brain natriuretic peptide (NT-proBNP) levels, and decline of renal function.ResultsFive RCTs involving 19,078 patients were identified. The meta-analysis indicated that LCZ696 was associated with a significant reduction in all-cause mortality (hazard ratio [HR] = 0.84; 95% confidence interval [CI], 0.76-0.93; P = .0005), rate of hospitalizations for HF (HR = 0.80; 95% CI, 0.73-0.87; P < .00001), reduction in NT-proBNP levels (rate ratio = 0.78; 95% CI, 0.70-0.88; P < .0001), and decline in renal function (odds ratio = 0.77; 95% CI, 0.68-0.88; P < .0001) compared with ACEis and ARBs. However, there was no statistical difference in the rate of death from cardiovascular causes (HR = 0.86; 95% CI, 0.72-1.03; P = .09) between LCZ696 and ACEis and ARBs.ConclusionLCZ696 is superior to ACEis and ARBs in the treatment of HF. Hence, it should be more widely used clinically.

| S-EPMC9575833 | biostudies-literature

Real-world experience of angiotensin receptor neprilysin inhibitor on the glucose-lowering effect.

Project description:We investigated the effect of angiotensin receptor neprilysin inhibitor (ARNI) on glycemic control in Korean patients. This retrospective cohort study was conducted at a single tertiary hospital. We compared the HbA1c level reduction between the ARNI and angiotensin-converting enzyme inhibitors (ACEIs) or angiotensin II receptor blockers (ARBs) in chronic heart failure patients with diabetes. We also examined whether the target HbA1c level was reached and the time to start insulin between the two groups. Over the study period, ARNI did not significantly lower the HbA1c level after adjusting confounding factors compared to ACEIs or ARBs. However, as a result of a simple comparison using Mann-Whitney U test, ARNI group showed significant decrease in HbA1c at 6, 12, and 24 months compared to ACEIs or ARBs group (p = 0.003, 0.009, and 0.026, respectively). The initiation of insulin was delayed in the ARNI group, but this difference was not significant based on the result of hazard ratio, but cumulative incidence was significantly lower in the ARNI group. In the real world, the blood glucose-control effects of ARNI were not superior to those of ACEIs or ARBs. However, long-term studies are needed as ARNI use increases to obtain more statistically significant results.

| S-EPMC9188559 | biostudies-literature

Dual Angiotensin Receptor and Neprilysin Inhibitor Ameliorates Portal Hypertension in Portal Hypertensive Rats.

Project description:BACKGROUND:Portal hypertension is characterized by exaggerated activation of the renin-angiotensin-aldosterone axis. Natriuretic peptide system plays a counter-regulatory role, which is modulated by neprilysin. LCZ696 (sacubitril/valsartan) is a dual angiotensin receptor and neprilysin inhibitor. This study evaluated the effect of LCZ696 on portal hypertensive rats. METHODS:Portal hypertension was induced by partial portal vein ligation (PVL) in rats. LCZ696, valsartan (angiotensin receptor blocker), or normal saline (control) was administered in PVL rats for 10 days. Then, hemodynamic and biochemistry data were obtained. The hepatic histology and protein expressions were surveyed. On the parallel groups, the portal-systemic shunting degrees were determined. RESULTS:LCZ696 and valsartan reduced mean arterial pressure and systemic vascular resistance. LCZ696, but not valsartan, reduced portal pressure in portal hypertensive rats (control vs. valsartan vs. LCZ696: 15.4 ± 1.6 vs. 14.0 ± 2.3 vs. 12.0 ± 2.0 mmHg, control vs. LCZ696: P < 0.05). LCZ696 and valsartan improved liver biochemistry data and reduced intrahepatic Cluster of Differentiation 68 (CD68)-stained macrophages infiltration. Hepatic endothelin-1 (ET-1) protein expression was downregulated by LCZ696. The portal-systemic shunting was not affected by LCZ696 and valsartan. CONCLUSION:LCZ696 and valsartan reduced mean arterial pressure through peripheral vasodilation. Furthermore, LCZ696 significantly reduced portal pressure in PVL rats via hepatic ET-1 downregulation.

| S-EPMC7238216 | biostudies-literature

Treatment of Pulmonary Hypertension With Angiotensin II Receptor Blocker and Neprilysin Inhibitor Sacubitril/Valsartan.

Project description:BACKGROUND:Angiotensin II has been implicated in maladaptive right ventricular (RV) hypertrophy and fibrosis associated with pulmonary hypertension (PH). Natriuretic peptides decrease RV afterload by promoting pulmonary vasodilation and inhibiting vascular remodeling but are degraded by neprilysin. We hypothesized that angiotensin receptor blocker and neprilysin inhibitor, sacubitril/valsartan (Sac/Val, LCZ696), will attenuate PH and improve RV function by targeting both pulmonary vascular and RV remodeling. METHODS:PH was induced in rats using the SU5416/hypoxia model (Su/Hx), followed by 6-week treatment with placebo, Sac/Val, or Val alone. There were 4 groups: CON-normoxic animals with placebo (n=18); PH-Su/Hx rats+placebo (n=34); PH+Sac/Val (N=24); and PH+Val (n=16). RESULTS:In animals with PH, treatment with Sac/Val but not Val resulted in significant reduction in RV pressure (mm?Hg: PH: 62±4, PH+Sac/Val: 46±5), hypertrophy (RV/LV+S: PH: 0.74±0.06, PH+Sac/Val: 0.46±0.06), collagen content (µg/50 µg protein: PH: 8.2±0.3, PH+Sac/Val: 6.4±0.4), pressures and improvement in RVs (mm/s: PH: 31.2±1.8, PH+Sac/Val: 43.1±3.6) compared with placebo. This was associated with reduced pulmonary vascular wall thickness, increased lung levels of ANP (atrial natriuretic peptide), BNP (brain-type natriuretic peptide), and cGMP, and decreased plasma endothelin-1 compared with PH alone. Also, PH+Sac/Val animals had altered expression of PKC isozymes in RV tissue compared with PH alone. CONCLUSIONS:Sac/Val reduces pulmonary pressures, vascular remodeling, as well as RV hypertrophy in a rat model of PH and may be appropriate for treatment of pulmonary hypertension and RV dysfunction.

| S-EPMC6857845 | biostudies-literature

Angiotensin receptor-neprilysin inhibitor improves coronary collateral perfusion.

Project description:BackgroundWe investigated the pleiotropic effects of an angiotensin receptor-neprilysin inhibitor (ARNi) on collateral-dependent myocardial perfusion in a rat model of coronary arteriogenesis, and performed comprehensive analyses to uncover the underlying molecular mechanisms.MethodsA rat model of coronary arteriogenesis was established by implanting an inflatable occluder on the left anterior descending coronary artery followed by a 7-day repetitive occlusion procedure (ROP). Coronary collateral perfusion was measured by using a myocardial particle infusion technique. The putative ARNi-induced pro-arteriogenic effects were further investigated and compared with an angiotensin-converting enzyme inhibitor (ACEi). Expression of the membrane receptors and key enzymes in the natriuretic peptide system (NPS), renin-angiotensin-aldosterone system (RAAS) and kallikrein-kinin system (KKS) were analyzed by quantitative polymerase chain reaction (qPCR) and immunoblot assay, respectively. Protein levels of pro-arteriogenic cytokines were measured by enzyme-linked immunosorbent assay, and mitochondrial DNA copy number was assessed by qPCR due to their roles in arteriogenesis. Furthermore, murine heart endothelial cells (MHEC5-T) were treated with a neprilysin inhibitor (NEPi) alone, or in combination with bradykinin receptor antagonists. MHEC5-T proliferation was analyzed by colorimetric assay.ResultsThe in vivo study showed that ARNis markedly improved coronary collateral perfusion, regulated the gene expression of KKS, and increased the concentrations of relevant pro-arteriogenic cytokines. The in vitro study demonstrated that NEPis significantly promoted MHEC5-T proliferation, which was diminished by bradykinin receptor antagonists.ConclusionARNis improve coronary collateral perfusion and exert pro-arteriogenic effects via the bradykinin receptor signaling pathway.

| S-EPMC9936066 | biostudies-literature

Prevention against renal damage in rats with subtotal nephrectomy by sacubitril/valsartan (LCZ696), a dual-acting angiotensin receptor-neprilysin inhibitor.

Project description:Although patients with chronic kidney disease (CKD) are at increased risk for end-stage renal disease and cardiovascular events, adequate drug therapies for preventing the deterioration of these conditions are still not established. This study was undertaken to evaluate a preventive effect of an angiotensin receptor-neprilysin inhibitor sacubitril/valsartan (LCZ696), which is converted to sacubitril and valsartan in the body, against the progression of renal disease in rats with subtotal nephrectomy, an animal model of human CKD. Mean survival time after subtotal nephrectomy was about 100 days in Wistar rats with vehicle. LCZ696-(30 mg/kg) and valsartan-(15 mg/kg) prolonged the survival of these animals, and the effect of LCZ696 on survival was significantly greater than that of valsartan. Renoprotective effects of LCZ696 judged by serum creatinine and urinary protein excretions were larger than those of valsartan. Cardioprotective effects judged by cardiac left ventricular mass, fractional shortening, and fibrosis of LCZ696 and valsartan were not detected under the present condition. Thus, the renoprotective effect of LCZ696 was stronger than that of valsartan in rats with subtotal nephrectomy. This study provides the idea that, compared to valsartan, LCZ696 is more effective for the treatment of human CKD.

| S-EPMC5684857 | biostudies-other

Real-world experience of angiotensin receptor/neprilysin inhibitor (ARNI) usage in Thailand: a single-center, retrospective analysis.

Project description:BackgroundTreatment of heart failure with reduced ejection fraction (HFrEF) has been revolutionized by angiotensin receptor/neprilysin inhibitor (ARNI). ARNI has been shown to significantly reduce morbidity and mortality in a large, randomized controlled trial. However, real-world evaluation of ARNI with a diverse population is still limited.MethodsHFrEF patients receiving angiotensin receptor/neprilysin inhibitor (ARNI) or standard HF treatment at a university hospital in Thailand were prospectively followed-up from January 2015 to December 2019. The primary outcome was a composite of all-cause mortality and heart failure hospitalization. Survival analysis and the Cox proportional hazard model were used to compare clinical outcomes between the two groups.ResultsDuring a follow-up period of 12 months, the primary outcome occurred in 10 patients in the ARNI group (11.5%) and 28 in the standard treatment group (28.0%) (hazard ratio 0.34; 95% CI: 0.15-0.80; p = 0.013). After adjustment for confounding factors, ARNI was significantly associated with a significant reduction in the primary outcome (HR 0.32, 95% CI: 0.13-0.82, p = 0.017). In addition, ARNI was also significantly associated with a decrease in the clinical signs and symptoms of HF, including dyspnea, orthopnea, and fatigue. Orthostatic hypotension was more frequently reported among the ARNI group than among the standard treatment group. The rates of target dose achievement were comparable between the two groups.ConclusionIn real-world practice, ARNI use was associated with a significant reduction in both clinical outcomes and symptom improvement, while orthostatic hypotension was more common in patients in the ARNI group than in patients in the standard treatment group.

| S-EPMC8254265 | biostudies-literature

Angiotensin Receptor-Neprilysin Inhibition Attenuates Right Ventricular Remodeling in Pulmonary Hypertension.

Project description:BackgroundPulmonary hypertension (PH) results in increased right ventricular (RV) afterload and ventricular remodeling. Sacubitril/valsartan (sac/val) is a dual acting drug, composed of the neprilysin inhibitor sacubitril and the angiotensin receptor blocker valsartan, that has shown promising outcomes in reducing the risk of death and hospitalization for chronic systolic left ventricular heart failure. In this study, we aimed to examine if angiotensin receptor-neprilysin inhibition using sac/val attenuates RV remodeling in PH.Methods and ResultsRV pressure overload was induced in Sprague-Dawley rats via banding the main pulmonary artery. Three different cohorts of controls, placebo-treated PH, and sac/val-treated PH were studied in a 21-day treatment window. Terminal invasive hemodynamic measurements, quantitative histological analysis, biaxial mechanical testing, and constitutive modeling were employed to conduct a multiscale analysis on the effects of sac/val on RV remodeling in PH. Sac/val treatment decreased RV maximum pressures (29% improvement, P=0.002), improved RV contractile (30%, P=0.012) and relaxation (29%, P=0.043) functions, reduced RV afterload (35% improvement, P=0.016), and prevented RV-pulmonary artery uncoupling. Furthermore, sac/val attenuated RV hypertrophy (16% improvement, P=0.006) and prevented transmural reorientation of RV collagen and myofibers (P=0.011). The combined natriuresis and vasodilation resulting from sac/val led to improved RV biomechanical properties and prevented increased myofiber stiffness in PH (61% improvement, P=0.032).ConclusionsSac/val may prevent maladaptive RV remodeling in a pressure overload model via amelioration of RV pressure rise, hypertrophy, collagen, and myofiber reorientation as well as tissue stiffening both at the tissue and myofiber level.

| S-EPMC7670537 | biostudies-literature

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