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Item Advancing Research on the Complex Interrelations between Atrial fibrillation and Heart Failure: A Report from a National Heart, Lung, and Blood Institute Virtual Workshop(American Heart Association, 2020-06-09) Al-Khatib, Sana M.; Benjamin, Emelia J.; Albert, Christine M.; Alonso, Alvaro; Chauhan, Cynthia; Chen, Peng-Sheng; Curtis, Anne B.; Desvigne-Nickens, Patrice; Ho, Jennifer E.; Lam, Carolyn S.P.; Link, Mark S.; Patton, Kristen K.; Redfield, Margaret M.; Rienstra, Michiel; Rosenberg, Yves; Schnabel, Renate; Spertus, John A.; Warner Stevenson, Lynne; Hills, Mellanie True; Voors, Adriaan A.; Cooper, Lawton S.; Go, Alan S.; Medicine, School of MedicineThe interrelationships between atrial fibrillation (AF) and heart failure (HF) are complex and poorly understood, yet the number of patients with AF and HF continues to increase worldwide. Thus, there is a need for initiatives that prioritize research on the intersection between AF and HF. This report summarizes the proceedings of a virtual workshop convened by the National Heart, Lung, and Blood Institute to identify important research opportunities in AF and HF. Key knowledge gaps were reviewed and research priorities were proposed for characterizing the pathophysiological overlap and deleterious interactions between AF and HF; preventing HF in persons with AF; preventing AF in individuals with HF; and addressing symptom burden and health status outcomes in AF and HF. These research priorities will hopefully help inform, encourage, and stimulate innovative, cost-efficient, and transformative studies to enhance the outcomes of patients with AF and HF.Item Biased ligand of the angiotensin II type 1 receptor in patients with acute heart failure: a randomized, double-blind, placebo-controlled, phase IIB, dose ranging trial (BLAST-AHF)(Oxford University Press, 2017-08-07) Pang, Peter S.; Butler, Javed; Collins, Sean P.; Cotter, Gad; Davison, Beth A.; Ezekowitz, Justin A.; Filippatos, Gerasimos; Levy, Phillip D.; Metra, Marco; Ponikowski, Piotr; Teerlink, John R.; Voors, Adriaan A.; Bharucha, David; Goin, Kathleen; Soergel, David G.; Felker, G. Michael; Emergency Medicine, School of MedicineAims: Currently, no acute heart failure (AHF) therapy definitively improves outcomes. Reducing morbidity and mortality from acute heart failure (AHF) remains an unmet need. TRV027 is a novel 'biased' ligand of the angiotensin II type 1 receptor (AT1R), selectively antagonizing the negative effects of angiotensin II, while preserving the potential pro-contractility effects of AT1R stimulation. BLAST-AHF was designed to determine the safety, efficacy, and optimal dose of TRV027 to advance into future studies. Methods and results: BLAST-AHF was a multi-centre, international, randomized, double-blind, placebo-controlled, parallel group, phase IIb dose-ranging study, enrolling patients with AHF into 4 groups: placebo, 1, 5, or 25 mg/h of TRV027. Treatment was by IV infusion for 48-96 h. The primary composite endpoint was comprised of the following: (i) time from baseline to death through day 30, (ii) time from baseline to heart failure re-hospitalization through day 30, (iii) the first assessment time point following worsening heart failure through day 5, (iv) change in dyspnea visual analogue scale (VAS) score calculated as the area under the curve (AUC) representing the change from baseline over time from baseline through day 5, and (v) length of initial hospital stay (in days) from baseline. Analyses were by modified intention-to-treat. Overall, 621 patients were enrolled. After 254 patients, a pre-specified interim analysis resulted in several protocol changes, including a lower blood pressure inclusion criterion as well as a new allocation scheme of 2:1:2:1, overweighting both placebo, and the 5 mg/h dose. TRV027 did not confer any benefit over placebo at any dose with regards to the primary composite endpoint or any of the individual components. There were no significant safety issues with TRV027. Conclusion: In this phase IIb dose-ranging AHF study, TRV027 did not improve clinical status through 30-day follow-up compared with placebo.Item Characteristics and clinical outcomes of patients with acute heart failure with a supranormal left ventricular ejection fraction(Wiley, 2023) van Essen, Bart J.; Tromp, Jasper; Ter Maaten, Jozine M.; Greenberg, Barry H.; Gimpelewicz, Claudio; Felker, G. Michael; Davison, Beth A.; Severin, Thomas; Pang, Peter S.; Cotter, Gad; Teerlink, John R.; Metra, Marco; Voors, Adriaan A.; Emergency Medicine, School of MedicineAim: Recent data suggest that guideline-directed medical therapy of patients with heart failure (HF) with reduced ejection fraction (HFrEF) might improve clinical outcomes in patients with HF up to a left ventricular ejection fraction (LVEF) of 55-65%, whereas patients with higher LVEF do not seem to benefit. Recent data have shown that LVEF may have a U-shaped relation with outcome, with poorer outcome also in patients with supranormal values. This suggests that patients with supranormal LVEF may be a distinctive group of patients. Methods and results: RELAX-AHF-2 was a multicentre, placebo-controlled trial on the effects of serelaxin on 180-day cardiovascular (CV) mortality and worsening HF at day 5 in patients with acute HF. Echocardiograms were performed at hospital admission in 6128 patients: 155 (2.5%) patients were classified as HF with supranormal ejection fraction (HFsnEF; LVEF >65%), 1440 (23.5%) as HF with preserved ejection fraction (HFpEF; LVEF 50-65%), 1353 (22.1%) as HF with mildly reduced ejection fraction (HFmrEF; LVEF 41-49%) and 3180 (51.9%) as HFrEF (LVEF <40%). Patients with HFsnEF compared to HFpEF were more often women, had higher prevalence of non-ischaemic HF, had lower levels of natriuretic peptides, were less likely to be treated with beta-blockers and had higher blood urea nitrogen plasma levels. All-cause mortality was not statistically different between groups, although patients with HFsnEF had the highest numerical rate. A declining trend was seen in the proportion of 180-day deaths due to CV causes from HFrEF (290/359, 80.8%) to HFsnEF (14/24, 58.3%). The reverse was observed with death from non-CV causes. No treatment effect of serelaxin was observed in any of the subgroups. Conclusions: In this study, only 2.5% of patients were classified as HFsnEF. HFsnEF was primarily characterized by female sex, lower natriuretic peptides and a higher risk of non-CV death.Item Day vs night: Does time of presentation matter in acute heart failure? A secondary analysis from the RELAX-AHF trial(Elsevier, 2017-05) Pang, Peter S.; Teerlink, John R.; Boer-Martins, Leandro; Gimpelewicz, Claudio; Davison, Beth A.; Wang, Yi; Voors, Adriaan A.; Severin, Thomas; Ponikowski, Piotr; Hua, Tsushung A.; Greenberg, Barry H.; Filippatos, Gerasimos; Felker, G. Michael; Cotter, Gad; Metra, Marco; Department of Emergency Medicine, IU School of MedicineBackground Signs and symptoms of heart failure can occur at any time. Differences between acute heart failure (AHF) patients who present at nighttime vs daytime and their outcomes have not been well studied. Our objective was to determine if there are differences in baseline characteristics and clinical outcomes between AHF patients presenting during daytime vs nighttime hours within an international, clinical trial. Methods This is a post hoc analysis of the RELAX AHF trial, which randomized 1,161 AHF patients to serelaxin vs placebo, both in addition to usual AHF therapy. Prespecified end points of the primary trial were used: dyspnea, 60-day heart failure/renal failure rehospitalization or cardiovascular (CV) death, and 180-day CV death. Both unadjusted and adjusted analyses for outcomes stratified by daytime vs nighttime presentation were performed. Results Of the 1,161 RELAX-AHF patients, 775 (66.8%) patients presented during daytime and 386 (33.2%) at nighttime. Baseline characteristics were largely similar, although daytime patients were more likely to be male, have greater baseline body weight, have higher New York Heart Association class, have history of atrial fibrillation, and have more peripheral edema compared with nighttime patients. No differences in dyspnea relief or 60-day outcomes were observed. However, daytime presentation was associated with greater risk for 180-day CV death after adjustment (hazard ratio 2.28, 95% CI 1.34-3.86; c statistic = 0.82, 95% CI 0.78-0.86). Conclusion In this secondary analysis of the RELAX-AHF trial, baseline characteristics suggest that daytime-presenting patients may have more gradual worsening of chronic HF. Patients with AHF who presented at night had less risk for 180-day CV death, but similar risk for 60-day CV death or rehospitalization and symptom improvement for patients who presented during the daytime.Item Effects of a Novel Nitroxyl Donor in Acute Heart Failure: The STAND-UP AHF Study(Elsevier, 2021) Felker, G. Michael; McMurray, John J. V.; Cleland, John G.; O’Connor, Christopher M.; Teerlink, John R.; Voors, Adriaan A.; Belohlavek, Jan; Böhm, Michael; Borentain, Maria; Bueno, Hector; Cole, Robert T.; DeSouza, Mary M.; Ezekowitz, Justin A.; Filippatos, Gerasimos; Lang, Ninian N.; Kessler, Paul D.; Martinez, Felipe A.; Mebazaa, Alex; Metra, Marco; Mosterd, Arend; Pang, Peter S.; Ponikowski, Piotr; Sato, Naoki; Seiffert, Dietmar; Ye, June; Emergency Medicine, School of MedicineObjectives: The primary objective was to identify well-tolerated doses of cimlanod in patients with acute heart failure (AHF). Secondary objectives were to identify signals of efficacy, including biomarkers, symptoms, and clinical events. Background: Nitroxyl (HNO) donors have vasodilator, inotropic and lusitropic effects. Bristol-Myers Squibb-986231 (cimlanod) is an HNO donor being developed for acute heart failure (AHF). Methods: This was a phase IIb, double-blind, randomized, placebo-controlled trial of 48-h treatment with cimlanod compared with placebo in patients with left ventricular ejection fraction ≤40% hospitalized for AHF. In part I, patients were randomized in a 1:1 ratio to escalating doses of cimlanod or matching placebo. In part II, patients were randomized in a 1:1:1 ratio to either of the 2 highest tolerated doses of cimlanod from part I or placebo. The primary endpoint was the rate of clinically relevant hypotension (systolic blood pressure <90 mm Hg or patients became symptomatic). Results: In part I (n = 100), clinically relevant hypotension was more common with cimlanod than placebo (20% vs. 8%; relative risk [RR]: 2.45; 95% confidence interval [CI]: 0.83 to 14.53). In part II (n = 222), the incidence of clinically relevant hypotension was 18% for placebo, 21% for cimlanod 6 μg/kg/min (RR: 1.15; 95% CI: 0.58 to 2.43), and 35% for cimlanod 12 μg/kg/min (RR: 1.9; 95% CI: 1.04 to 3.59). N-terminal pro-B-type natriuretic peptide and bilirubin decreased during infusion of cimlanod treatment compared with placebo, but these differences did not persist after treatment discontinuation. Conclusions: Cimlanod at a dose of 6 μg/kg/min was reasonably well-tolerated compared with placebo. Cimlanod reduced markers of congestion, but this did not persist beyond the treatment period.Item Effects of serelaxin in acute heart failure patients with renal impairment: results from RELAX-AHF(Springer, 2016-09) Liu, Licette C. Y.; Voors, Adriaan A.; Teerlink, John R.; Cotter, Gad; Davison, Beth A.; Felker, G. Michael; Filippatos, Gerasimos; Chen, Yakuan; Greenberg, Barry H.; Ponikowski, Piotr; Pang, Peter S.; Prescott, Margaret F.; Hua, Tsushung A.; Severin, Thomas M.; Metra, Marco; Department of Emergency Medicine, IU School of MedicineBackground Serelaxin showed beneficial effects on clinical outcome and trajectories of renal markers in patients with acute heart failure. We aimed to study the interaction between renal function and the treatment effect of serelaxin. Methods In the current post hoc analysis of the RELAX-AHF trial, we included all patients with available estimated glomerular filtration rate (eGFR) at baseline (n = 1132). Renal impairment was defined as an eGFR <60 ml/min/1.73 m2 estimated by creatinine. Results 817 (72.2 %) patients had a baseline eGFR <60 ml/min/1.73 m2. In placebo-treated patients, baseline renal impairment was related to a higher 180 day cardiovascular (HR 3.12, 95 % CI 1.33–7.30) and all-cause mortality (HR 2.81, 95 % CI 1.34–5.89). However, in serelaxin-treated patients, the risk of cardiovascular and all-cause mortality was less pronounced (HR 1.19, 95 % CI 0.54 –2.64; p for interaction = 0.106, and HR 1.15 95 % CI 0.56–2.34 respectively; p for interaction = 0.088). In patients with renal impairment, treatment with serelaxin resulted in a more pronounced all-cause mortality reduction (HR 0.53, 95 % CI 0.34–0.83), compared with patients without renal impairment (HR 1.30, 95 % CI 0.51–3.29). Conclusion Renal dysfunction was associated with higher cardiovascular and all-cause mortality in placebo-treated patients, but not in serelaxin-treated patients. The observed reduction in (cardiovascular) mortality in RELAX-AHF was more pronounced in patients with renal dysfunction. These observations need to be confirmed in the ongoing RELAX-AHF-2 trial.Item Growth differentiation factor 15 (GDF-15) in patients admitted for acute heart failure: results from the RELAX-AHF study(Wiley, 2015-11) Cotter, Gad; Voors, Adriaan A.; Prescott, Margaret F.; Felker, G. Michael; Filippatos, Gerasimos; Greenberg, Barry H.; Pang, Peter S.; Ponikowski, Piotr; Milo, Olga; Hua, Tsushung A.; Qian, Min; Severin, Thomas M.; Teerlink, John R.; Metra, Marco; Davison, Beth A.; Department of Emergency Medicine, IU School of MedicineBackground Growth differentiation factor 15 (GDF-15) was found to be upregulated in patients with chronic heart failure (HF) and associated with disease severity, however, data on patients with acute heart failure (AHF) is lacking. Methods and results Levels of GDF-15 were measured at pre-specified time-points (baseline and at days 2, 5, 14, and 60) in patients enrolled in the placebo-controlled RELAXin in Acute Heart Failure (RELAX-AHF) study, which examined the effect of serelaxin in 1161 patients with AHF, systolic blood pressure >125 mmHg, and mild to moderate renal impairment. Neither baseline nor changes in GDF-15 were associated with the degree of dyspnoea or dyspnoea relief. After adjustment for baseline characteristics, baseline GDF-15 was not associated with the composite endpoint of heart failure or renal failure (HF/RF) readmission at 60 days/cardiovascular (CV) death or CV death at 180 days. In contrast, larger increases in GDF-15 levels at days 2 and 14 were associated with a greater risk of 60-day HF/RF rehospitalizations/CV death and CV death at 180 days. Serelaxin treatment was associated with significantly larger decreases of GDF-15 at days 2 and 5 than placebo. Conclusions In AHF patients enrolled in the RELAX-AHF study, increases in GDF-15 levels, but not baseline measurements, were associated with a greater likelihood of adverse outcomes. Serelaxin administration was associated with greater decreases in GDF-15 compared with placebo.Item Haemodynamic effects of the nitroxyl donor cimlanod (BMS-986231) in chronic heart failure: a randomized trial(Wiley, 2021-07) Lang, Ninian N.; Ahmad, Faheem A.; Cleland, John G.; O'Connor, Christopher M.; Teerlink, John R.; Voors, Adriaan A.; Taubel, Jorg; Hodes, Anke R.; Anwar, Mohamed; Karra, Ravi; Sakata, Yasushi; Ishihara, Shiro; Senior, Roxy; Khemka, Abhishek; Prasad, Narayana G.; DeSouza, Mary M.; Seiffert, Dietmar; Ye, June Y.; Kessler, Paul D.; Borentain, Maria; Solomon, Scott D.; Felker, G. Michael; McMurray, John J. V.; Medicine, School of MedicineAims Nitroxyl provokes vasodilatation and inotropic and lusitropic effects in animals via post-translational modification of thiols. We aimed to compare effects of the nitroxyl donor cimlanod (BMS-986231) with those of nitroglycerin (NTG) or placebo on cardiac function in patients with chronic heart failure with reduced ejection fraction (HFrEF). Methods and results In a randomized, multicentre, double-blind, crossover trial, 45 patients with stable HFrEF were given a 5 h intravenous infusion of cimlanod, NTG, or placebo on separate days. Echocardiograms were done at the start and end of each infusion period and read in a core laboratory. The primary endpoint was stroke volume index derived from the left ventricular outflow tract at the end of each infusion period. Stroke volume index with placebo was 30 ± 7 mL/m2 and was lower with cimlanod (29 ± 9 mL/m2; P = 0.03) and NTG (28 ± 8 mL/m2; P = 0.02). Transmitral E-wave Doppler velocity on cimlanod or NTG was lower than on placebo and, consequently, E/e′ (P = 0.006) and E/A ratio (P = 0.003) were also lower. NTG had similar effects to cimlanod on these measurements. Blood pressure reduction was similar with cimlanod and NTG and greater than with placebo. Conclusion In patients with chronic HFrEF, the haemodynamic effects of cimlanod and NTG are similar. The effects of cimlanod may be explained by venodilatation and preload reduction without additional inotropic or lusitropic effects. Ongoing trials of cimlanod will further define its potential role in the treatment of heart failure.Item Neutrophil-to-Lymphocyte Ratio and Outcomes in Patients Admitted for Acute Heart Failure (As Seen in the BLAST-AHF, Pre-RELAX-AHF, and RELAX-AHF Studies)(Elsevier, 2022) Davison, Beth A.; Takagi, Koji; Edwards, Christopher; Adams, Kirkwood F., Jr.; Butler, Javed; Collins, Sean P.; Dorobantu, Maria I.; Ezekowitz, Justin A.; Filippatos , Gerasimos; Greenberg , Barry H.; Levy , Phillip D.; Masip, Josep; Metra, Marco; Pang , Peter S.; Ponikowski , Piotr; Severin , Thomas M.; Teerlink, John R.; Teichman, Sam L.; Voors, Adriaan A.; Werdan, Karl; Cotter, Gad; Emergency Medicine, School of MedicinePrevious studies have suggested that the neutrophil-to-lymphocyte ratio (NLR) is a novel yet readily evaluable inflammatory biomarker that may be useful for determining cardiovascular prognosis during acute episodes. The study investigated the role of NLR in predicting cardiovascular (CV) outcomes in patients with acute heart failure (HF). Individual patient data from the BLAST-AHF (phase 2b study of the biased ligand of the angiotensin 2 type 1 receptor, TRV027), Pre-RELAX-AHF (phase 2b study of recombinant human relaxin-2, serelaxin), and RELAX-AHF (phase 3 study of serelaxin) randomized, placebo-controlled studies for patients with acute HF were pooled for analysis. Dyspnea visual analog scale area under the curve through day 5, worsening HF through day 5, 30-day all-cause mortality, 60-day HF/renal failure rehospitalizations or CV death, 180-day all-cause mortality, and 180-day CV death were assessed. There were several differences in the baseline characteristics of the patients divided by NLR tertile, with patients in the higher NLR having worse clinical characteristics. NLR was an independent predictor of 30-day all-cause mortality (adjusted hazard ratio [HR] per log2 NLR increment: 1.66 [1.22 to 2.25], p = 0.001), 60-day HF/renal failure rehospitalizations or CV death: 1.33 [1.12 to 1.57], p = 0.001), 180-day all-cause mortality (adjusted HR 1.27 [1.08 to 1.50], p = 0.003), and 180-day CV death (adjusted HR 1.24 [1.04 to 1.49], p = 0.018). NLR, a readily available inflammatory biomarker, was associated with independent risk for short- and long-term adverse outcomes in acute HF, surpassing traditional markers, such as natriuretic peptides.Item Safety, tolerability and efficacy of up-titration of guideline-directed medical therapies for acute heart failure (STRONG-HF): a multinational, open-label, randomised, trial(Elsevier, 2022-12-03) Mebazaa, Alexandre; Davison, Beth; Chioncel, Ovidiu; Cohen-Solal, Alain; Diaz, Rafael; Filippatos, Gerasimos; Metra, Marco; Ponikowski, Piotr; Sliwa, Karen; Voors, Adriaan A.; Edwards, Christopher; Novosadova, Maria; Takagi, Koji; Damasceno, Albertino; Saidu, Hadiza; Gayat, Etienne; Pang, Peter S.; Celutkiene, Jelena; Cotter, Gad; Emergency Medicine, School of MedicineBackground There is a paucity of evidence for dose and pace of up-titration of guideline-directed medical therapies after admission to hospital for acute heart failure. Methods In this multinational, open-label, randomised, parallel-group trial (STRONG-HF), patients aged 18–85 years admitted to hospital with acute heart failure, not treated with full doses of guideline-directed drug treatment, were recruited from 87 hospitals in 14 countries. Before discharge, eligible patients were randomly assigned (1:1), stratified by left ventricular ejection fraction (≤40% vs >40%) and country, with blocks of size 30 within strata and randomly ordered sub-blocks of 2, 4, and 6, to either usual care or high-intensity care. Usual care followed usual local practice, and high-intensity care involved the up-titration of treatments to 100% of recommended doses within 2 weeks of discharge and four scheduled outpatient visits over the 2 months after discharge that closely monitored clinical status, laboratory values, and N-terminal pro-B-type natriuretic peptide (NT-proBNP) concentrations. The primary endpoint was 180-day readmission to hospital due to heart failure or all-cause death. Efficacy and safety were assessed in the intention-to-treat (ITT) population (ie, all patients validly randomly assigned to treatment). The primary endpoint was assessed in all patients enrolled at hospitals that followed up patients to day 180. Because of a protocol amendment to the primary endpoint, the results of patients enrolled on or before this amendment were down-weighted. This study is registered with ClinicalTrials.gov, NCT03412201, and is now complete. Findings Between May 10, 2018, and Sept 23, 2022, 1641 patients were screened and 1078 were successfully randomly assigned to high-intensity care (n=542) or usual care (n=536; ITT population). Mean age was 63·0 years (SD 13·6), 416 (39%) of 1078 patients were female, 662 (61%) were male, 832 (77%) were White or Caucasian, 230 (21%) were Black, 12 (1%) were other races, one (<1%) was Native American, and one (<1%) was Pacific Islander (two [<1%] had missing data on race). The study was stopped early per the data and safety monitoring board's recommendation because of greater than expected between-group differences. As of data cutoff (Oct 13, 2022), by day 90, a higher proportion of patients in the high-intensity care group had been up-titrated to full doses of prescribed drugs (renin-angiotensin blockers 278 [55%] of 505 vs 11 [2%] of 497; β blockers 249 [49%] vs 20 [4%]; and mineralocorticoid receptor antagonists 423 [84%] vs 231 [46%]). By day 90, blood pressure, pulse, New York Heart Association class, bodyweight, and NT-proBNP concentration had decreased more in the high-intensity care group than in the usual care group. Heart failure readmission or all-cause death up to day 180 occurred in 74 (15·2% down-weighted adjusted Kaplan-Meier estimate) of 506 patients in the high-intensity care group and 109 (23·3%) of 502 patients in the usual care group (adjusted risk difference 8·1% [95% CI 2·9–13·2]; p=0·0021; risk ratio 0·66 [95% CI 0·50–0·86]). More adverse events by 90 days occurred in the high-intensity care group (223 [41%] of 542) than in the usual care group (158 [29%] of 536) but similar incidences of serious adverse events (88 [16%] vs 92 [17%]) and fatal adverse events (25 [5%] vs 32 [6%]) were reported in each group. Interpretation An intensive treatment strategy of rapid up-titration of guideline-directed medication and close follow-up after an acute heart failure admission was readily accepted by patients because it reduced symptoms, improved quality of life, and reduced the risk of 180-day all-cause death or heart failure readmission compared with usual care.