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Background and Aims: Contemporary multicentre data on clinical and diagnostic spectrum and outcome in myocarditis are limited. Study aims were to describe baseline features, 1-year follow-up, and baseline predictors of outcome in clinically suspected or biopsy-proven myocarditis (2013 European Society of Cardiology criteria) in adult and paediatric patients from the EURObservational Research Programme Cardiomyopathy and Myocarditis Long-Term Registry., Methods: Five hundred eighty-one (68.0% male) patients, 493 adults, median age 38 (27-52) years, and 88 children, aged 8 (3-13) years, were divided into 3 groups: Group 1 (n = 233), clinically suspected myocarditis with abnormal cardiac magnetic resonance; Group 2 (n = 222), biopsy-proven myocarditis; and Group 3 (n = 126) clinically suspected myocarditis with normal or inconclusive or no cardiac magnetic resonance. Baseline features were analysed overall, in adults vs. children, and among groups. One-year outcome events included death/heart transplantation, ventricular assist device (VAD) or implantable cardioverter defibrillator (ICD) implantation, and hospitalization for cardiac causes., Results: Endomyocardial biopsy, mainly right ventricular, had a similarly low complication rate in children and adults (4.7% vs. 4.9%, P = NS), with no procedure-related death. A classical myocarditis pattern on cardiac magnetic resonance was found in 31.3% of children and in 57.9% of adults with biopsy-proven myocarditis (P < .001). At 1-year follow-up, 11/410 patients (2.7%) died, 7 (1.7%) received a heart transplant, 3 underwent VAD (0.7%), and 16 (3.9%) underwent ICD implantation. Independent predictors at diagnosis of death or heart transplantation or hospitalization or VAD implantation or ICD implantation at 1-year follow-up were lower left ventricular ejection fraction and the need for immunosuppressants for new myocarditis diagnosis refractory to non-aetiology-driven therapy., Conclusions: Endomyocardial biopsy was safe, and cardiac magnetic resonance using Lake Louise criteria was less sensitive, particularly in children. Virus-negative lymphocytic myocarditis was predominant both in children and adults, and use of immunosuppressive treatments was low. Lower left ventricular ejection fraction and the need for immunosuppressants at diagnosis were independent predictors of unfavourable outcome events at 1 year., (© The Author(s) 2024. Published by Oxford University Press on behalf of the European Society of Cardiology. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.)

Background and Aims: It has been reported that patients without standard modifiable cardiovascular (CV) risk factors (SMuRFs-diabetes, dyslipidaemia, hypertension, and smoking) presenting with first myocardial infarction (MI), especially women, have a higher in-hospital mortality than patients with risk factors, and possibly a lower long-term risk provided they survive the post-infarct period. This study aims to explore the long-term outcomes of SMuRF-less patients with stable coronary artery disease (CAD)., Methods: CLARIFY is an observational cohort of 32 703 outpatients with stable CAD enrolled between 2009 and 2010 in 45 countries. The baseline characteristics and clinical outcomes of patients with and without SMuRFs were compared. The primary outcome was a composite of 5-year CV death or non-fatal MI. Secondary outcomes were 5-year all-cause mortality and major adverse cardiovascular events (MACE-CV death, non-fatal MI, or non-fatal stroke)., Results: Among 22 132 patients with complete risk factor and outcome information, 977 (4.4%) were SMuRF-less. Age, sex, and time since CAD diagnosis were similar across groups. SMuRF-less patients had a lower 5-year rate of CV death or non-fatal MI (5.43% [95% CI 4.08-7.19] vs. 7.68% [95% CI 7.30-8.08], P = 0.012), all-cause mortality, and MACE. Similar results were found after adjustments. Clinical event rates increased steadily with the number of SMuRFs. The benefit of SMuRF-less status was particularly pronounced in women., Conclusions: SMuRF-less patients with stable CAD have a substantial but significantly lower 5-year rate of CV death or non-fatal MI than patients with risk factors. The risk of CV outcomes increases steadily with the number of risk factors., (© The Author(s) 2024. Published by Oxford University Press on behalf of the European Society of Cardiology. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.)

Background: The AEGIS-II trial hypothesized that CSL112, an intravenous formulation of human apoA-I, would lower the risk of plaque disruption, decreasing the risk of recurrent events such as myocardial infarction (MI) among high-risk patients with MI., Objectives: This exploratory analysis evaluates the effect of CSL112 therapy on the incidence of cardiovascular (CV) death and recurrent MI., Methods: The AEGIS-II trial was an international, multicenter, randomized, double-blind, placebo-controlled trial that randomized 18,219 high-risk acute MI patients to 4 weekly infusions of apoA-I (6 g CSL112) or placebo., Results: The incidence of the composite of CV death and type 1 MI was 11% to 16% lower in the CSL112 group over the study period (HR: 0.84; 95% CI: 0.7-1.0; P = 0.056 at day 90; HR: 0.86; 95% CI: 0.74-0.99; P = 0.048 at day 180; and HR: 0.89; 95% CI: 0.79-1.01; P = 0.07 at day 365). Similarly, the incidence of CV death or any MI was numerically lower in CSL112-treated patients throughout the follow-up period (HR: 0.92; 95% CI: 0.80-1.05 at day 90, HR: 0.89; 95% CI: 0.79-0.996 at day 180, HR: 0.91; 95% CI: 0.83-1.01 at day 365). The effect of CSL112 treatment on MI was predominantly observed for type 1 MI and type 4b (MI due to stent thrombosis)., Conclusions: Although CSL112 did not significantly reduce the occurrence of the primary study endpoints, patients treated with CSL112 infusions had numerically lower rates of CV death and MI, type-1 MI, and stent thrombosis-related MI compared with placebo. These findings could suggest a role of apoA-I in reducing subsequent plaque disruption events via enhanced cholesterol efflux. Further prospective data would be needed to confirm these observations., Competing Interests: Funding Support and Author Disclosures This study was funded by CSL Behring. Dr Povsic has received research funding paid to his institution from CSL Behring; has received research funding from Xylocor Inc, Ionis, Bayer, Roche, and the National Institutes of Health (NIH); and has received consulting income from Novo Nordisk, Corvia, and Boehringer Ingelheim. Dr Korjian has received research grant support paid to the Beth Israel Deaconess Medical Center, Harvard Medical School from CSL Behring. Dr Bahit has received modest honorarium from MSD, Pfizer, Bristol Myers Squibb, CSL Behring, Janssen, Boehringer Ingelheim, and Anthos Therapeutics. Dr Chi has received research grant support paid to the Beth Israel Deaconess Medical Center, Harvard Medical School from Bayer, Janssen Scientific Affairs, and CSL Behring. Dr Duffy is an employee of CSL Behring. Dr Alexander has received research grants from Artivion/CryoLife, Bayer, Bristol Myers Squibb, CSL Behring, Ferring, the U.S. Food and Drug Administration, Humacyte, and the NIH; and has received advisory board/consulting payments from AbbVie, Artivion/CryoLife, AtriCure, Bayer, Bristol Myers Squibb, Eli Lilly, Ferring, GlaxoSmithKline, Janssen, Novostia, Pfizer, Portola, Theravance, and Veralox. Dr Vinereanu has received research grants from CSL Behring, Bayer, Novartis, Amgen, and Boehringer Ingelheim; and has received consultancy fees from Bayer, Novartis, Amgen, and Boehringer Ingelheim. Dr Tricoci, Ms Mears, and Dr Deckelbaum are employees of CSL Behring. Dr Bonaca is the Executive Director of CPC, a nonprofit academic research organization affiliated with the University of Colorado, that receives or has received research grant/consulting funding between August 2021 and the present from Abbott Laboratories, Agios Pharmaceuticals, Inc, Alexion Pharma, Alnylam Pharmaceuticals, Inc, Amgen Inc, Angionetics, Inc, Anthos Therapeutics, ARCA Biopharma, Inc, Array BioPharma, Inc, AstraZeneca and Affiliates, Atentiv LLC, Audentes Therapeutics, Inc, Bayer and Affiliates, Beth Israel Deaconess Medical Center, Better Therapeutics, Inc, Boston Clinical Research Institute, Bristol Myers Squibb Company, Cambrian Biopharma, Inc, Cardiol Therapeutics Inc, CellResearch Corp, Cleerly Inc, Cook Regentec LLC, CSL Behring LLC, Eidos Therapeutics, Inc, EP Trading Co Ltd, EPG Communication Holdings Ltd, Epizon Pharma, Inc, Esperion Therapeutics, Inc, Everly Well, Inc, Exicon Consulting Pvt Ltd, Faraday Pharmaceuticals, Inc, Foresee Pharmaceuticals Co Ltd, Fortress Biotech, Inc, HDL Therapeutics Inc, HeartFlow Inc, Hummingbird Bioscience, Insmed Inc, Ionis Pharmaceuticals, IQVIA Inc, Janssen and Affiliates, Kowa Research Institute, Inc, Kyushu University, Lexicon Pharmaceuticals, Inc, Medimmune Ltd, Medpace, Merck & Affiliates, Nectero Medical Inc, Novartis Pharmaceuticals Corp, Novo Nordisk, Inc, Osiris Therapeutics Inc, Pfizer Inc, PhaseBio Pharmaceuticals, Inc, PPD Development, LP, Prairie Education and Research Cooperative, Prothena Biosciences Limited, Regeneron Pharmaceuticals, Inc, Regio Biosciences, Inc, Saint Luke’s Hospital of Kansas City, Sanifit Therapeutics S.A., Sanofi-Aventis Groupe, Silence Therapeutics PLC, Smith & Nephew plc, Stanford Center for Clinical Research, Stealth BioTherapeutics Inc, State of Colorado CCPD Grant, The Brigham & Women's Hospital, Inc, The Feinstein Institutes for Medical Research, Thrombosis Research Institute, University of Colorado, University of Pittsburgh, VarmX, Virta Health Corporation, Worldwide Clinical Trials Inc, WraSer, LLC, and Yale Cardiovascular Research Group. Dr Ridker has received institutional research grant support from Kowa, Novartis, Amarin, Pfizer, Esperion, Novo Nordisk, and the National Heart, Lung, and Blood Institute (NHLBI); during the past 5 years has served as a consultant to Novartis, Flame, Agepha, Ardelyx, Arrowhead, AstraZeneca, CSL Behring, Janssen, Civi Biopharm, GlaxoSmithKline, SOCAR, Novo Nordisk, Health Outlook, Montai Health, Eli Lilly, New Amsterdam, Boehringer Ingelheim, RTI, Zomagen, Cytokinetics, Horizon Therapeutics, and Cardio Therapeutics; has minority shareholder equity positions in Uppton, Bitteroot Bio, and Angiowave; and has received compensation for service on the Peter Munk Advisory Board (University of Toronto), the Leducq Foundation, Paris FR, and the Baim Institute (Boston, Massachusetts). Dr Goodman has received research grant support (eg, steering committee or data and safety monitoring committee) and/or speaker/consulting honoraria (eg, advisory boards) from Amgen, Anthos Therapeutics, AstraZeneca, Bayer, Boehringer Ingelheim, Bristol Myers Squibb, CSL Behring, CYTE Ltd, Daiichi-Sankyo/American Regent, Eli Lilly, Esperion, Ferring Pharmaceuticals, HLS Therapeutics, Idorsia, JAMP Pharma, Merck, Novartis, Novo Nordisk A/C, Pendopharm/Pharmascience, Pfizer, Regeneron, Sanofi, Servier, Tolmar Pharmaceuticals, and Valeo Pharma; and has received salary support/honoraria from the Canadian Heart Failure Society, Canadian Heart Research Centre and MD Primer, Canadian VIGOUR Centre, Cleveland Clinic Coordinating Centre for Clinical Research, Duke Clinical Research Institute, Jewish General Hospital, New York University Clinical Coordinating Centre, PERFUSE Research Institute, Peter Munk Cardiac Centre Clinical Trials and Translation Unit, and TIMI Study Group (Brigham Health). Dr Cornel has served on advisory boards for Amgen and AstraZeneca. Dr Lewis has received consulting fees from Janssen R&D and Idorsia. Prof Parkhomenko has received research grants from CSL Behring, Amgen, Novo Nordisk, and Boehringer Ingelheim; and has received consulting or speaking fees from Novo Nordisk, AstraZeneca, Pfizer, Sanofi, and Boehringer Ingelheim. Dr Lopes has received research grants or contracts from Amgen, Bristol Myers Squibb, GlaxoSmithKline, Medtronic, Pfizer, and Sanofi-Aventis; has received funding for educational activities or lectures from Pfizer, Daiichi-Sankyo, and Novo Nordisk; and has received funding for consulting or other services from Bayer, Boehringer Ingelheim, Bristol Myers Squibb, and Novo Nordisk. Dr Aylward has received research support from CSL and Janssen Advisory Board; and has received honoraria and speaker fees from Novartis, Boehringer Ingelheim, Amgen, and AstraZeneca. Dr Lincoff has received honoraria for consulting activities from Novo Nordisk, Eli Lilly, Akebia, Ardelyx, Becton Dickson, Endologix, Fibrogen, GlaxoSmithKline, Medtronic, Neovasc, Provention Bio, ReCor, Brainstorm Cell, Alnylam, and Intarcia; and has received research funding to his institution from AbbVie, Esperion, AstraZeneca, CSL Behring, Novartis, and Eli Lilly. Dr Heise is an employee of CSL Behring. Dr Sacks has received support from CSL Behring. Dr Nicolau is recipient of a scholarship from National Council of Scientific and Technological Development (Conselho Nacional de Desenvolvimento Científico e Tecnológico – CNPq) # 303448/2021-0; has received research grants from Amgen, AstraZeneca, Bayer, CSL Behring, Daiichi-Sankyo, Dalcor, Esperion, Ionis, Janssen, Novartis, Novo Nordisk, Sanofi, and Vifor; and has received consulting fees from Libbs. Prof Merkely has received direct personal payment (speaker fees, studies) from Abbott, AstraZeneca, Biotronik, Boehringer Ingelheim, CSL Behring, Daiichi-Sankyo, DUKE Clinical Institute, Medtronic, and Novartis; and has received institutional grants (for the Heart and Vascular Center of Semmelweis University) from Abbott, AstraZeneca, Biotronik, Boehringer Ingelheim, Boston Scientific, Bristol Myers Squibb, CSL Behring, Daiichi-Sankyo, DUKE Clinical Institute, Eli Lilly, Medtronic, Novartis, Terumo, and Vifor Pharma. Dr Trebacz has received research support from CSL Behring. Dr Libby is an unpaid consultant to, or involved in clinical trials for Amgen, AstraZeneca, Baim Institute, Beren Therapeutics, Esperion Therapeutics, Genentech, Kancera, Kowa Pharmaceuticals, Medimmune, Merck, Moderna, Novo Nordisk, Novartis, Pfizer, and Sanofi-Regeneron; and is a member of the scientific advisory board for Amgen, Caristo Diagnostics, Cartesian Therapeutics, CSL Behring, DalCor Pharmaceuticals, Eulicid Bioimaging, Kancera, Kowa Pharmaceuticals, Olatec Therapeutics, Medimmune, Novartis, PlaqueTec, TenSixteen Bio, Soley Therapeutics, and XBiotech, Inc; has received research funding to his laboratory in the past 2 years from Novartis, Novo Nordisk, and Genentech; is on the Board of Directors of XBiotech, Inc; has a financial interest in XBiotech, a company developing therapeutic human antibodies, in TenSixteen Bio, a company targeting somatic mosaicism and clonal hematopoiesis of indeterminate potential to discover and develop novel therapeutics to treat age-related diseases, and in Soley Therapeutics, a biotechnology company that is combining artificial intelligence with molecular and cellular response detection for discovering and developing new drugs, currently focusing on cancer therapeutics; and has received funding support from the NHLBI (1R01HL134892 and 1R01HL163099-01), the RRM Charitable Fund, and the Simard Fund. Dr Nicholls has received research support from AstraZeneca, Amgen, Anthera, CSL Behring, Cerenis, Cyclarity, Eli Lilly, Esperion, Resverlogix, New Amsterdam Pharma, Novartis, InfraReDx, and Sanofi-Regeneron; and has served as a consultant for Amgen, Akcea, AstraZeneca, Boehringer Ingelheim, CSL Behring, Eli Lilly, Esperion, Kowa, Merck, Takeda, Pfizer, Sanofi-Regeneron, Vaxxinity, CSL Sequiris, and Novo Nordisk. Dr Pocock has served as a consultant for CSL Behring as a member of executive and publications committees. Dr Bhatt discloses the following relationships: Advisory Board: Angiowave, Bayer, Boehringer Ingelheim, CellProthera, Cereno Scientific, Elsevier Practice Update Cardiology, High Enroll, Janssen, Level Ex, McKinsey, Medscape Cardiology, Merck, MyoKardia, NirvaMed, Novo Nordisk, PhaseBio, PLx Pharma, Stasys; Board of Directors: American Heart Association New York City, Angiowave (stock options), Bristol Myers Squibb (stock), DRS.LINQ (stock options), High Enroll (stock); Consultant: Broadview Ventures, GlaxoSmithKline, Hims, SFJ, Youngene; Data Monitoring Committees: Acesion Pharma, Assistance Publique-Hôpitaux de Paris, Baim Institute for Clinical Research (formerly Harvard Clinical Research Institute, for the PORTICO trial, funded by St. Jude Medical, now Abbott), Boston Scientific (Chair, PEITHO trial), Cleveland Clinic, Contego Medical (Chair, PERFORMANCE 2), Duke Clinical Research Institute, Mayo Clinic, Mount Sinai School of Medicine (for the ENVISAGE trial), funded by Daiichi-Sankyo; for the ABILITY-DM trial, funded by Concept Medical; for ALLAY-HF, funded by Alleviant Medical, Novartis, Population Health Research Institute; Rutgers University (for the NIH-funded MINT Trial); Honoraria: American College of Cardiology (Senior Associate Editor, Clinical Trials and News, ACC.org; Chair, ACC Accreditation Oversight Committee), Arnold and Porter law firm (work related to Sanofi/Bristol Myers Squibb clopidogrel litigation), Baim Institute for Clinical Research (formerly Harvard Clinical Research Institute; RE-DUAL PCI clinical trial steering committee funded by Boehringer Ingelheim; AEGIS-II executive committee funded by CSL Behring), Belvoir Publications (Editor in Chief, Harvard Heart Letter), Canadian Medical and Surgical Knowledge Translation Research Group (clinical trial steering committees), CSL Behring (AHA lecture), Cowen and Company, Duke Clinical Research Institute (clinical trial steering committees, including for the PRONOUNCE trial, funded by Ferring Pharmaceuticals), HMP Global (Editor in Chief, Journal of Invasive Cardiology), Journal of the American College of Cardiology (Guest Editor; Associate Editor), K2P (Co-Chair, interdisciplinary curriculum), Level Ex, Medtelligence/ReachMD (CME steering committees), MJH Life Sciences, Oakstone CME (Course Director, Comprehensive Review of Interventional Cardiology), Piper Sandler, Population Health Research Institute (for the COMPASS operations committee, publications committee, steering committee, and USA national co-leader, funded by Bayer), WebMD (CME steering committees), Wiley (steering committee); Other: Clinical Cardiology (Deputy Editor); Patent: Sotagliflozin (named on a patent for sotagliflozin assigned to Brigham & Women's Hospital who assigned to Lexicon; neither I nor Brigham & Women's Hospital receive any income from this patent); research funding: Abbott, Acesion Pharma, Afimmune, Aker Biomarine, Alnylam, Amarin, Amgen, AstraZeneca, Bayer, Beren, Boehringer Ingelheim, Boston Scientific, Bristol Myers Squibb, Cardax, CellProthera, Cereno Scientific, Chiesi, CinCor, Cleerly, CSL Behring, Eisai, Ethicon, Faraday Pharmaceuticals, Ferring Pharmaceuticals, Forest Laboratories, Fractyl, Garmin, HLS Therapeutics, Idorsia, Ironwood, Ischemix, Janssen, Javelin, Lexicon, Lilly, Medtronic, Merck, Moderna, MyoKardia, NirvaMed, Novartis, Novo Nordisk, Otsuka, Owkin, Pfizer, PhaseBio, PLx Pharma, Recardio, Regeneron, Reid Hoffman Foundation, Roche, Sanofi, Stasys, Synaptic, The Medicines Company, Youngene, 89Bio; royalties: Elsevier (Editor, Braunwald’s Heart Disease); site co-investigator: Abbott, Biotronik, Boston Scientific, CSI, Endotronix, St Jude Medical (now Abbott), Philips, SpectraWAVE, Svelte, Vascular Solutions; trustee: American College of Cardiology; unfunded research: FlowCo. Dr Kastelein has served on a clinical trials steering committee for Novartis, NewAmsterdam Pharma, and CSL Behring; has served as a consultant or speaker for Scribe, CiVi Biotech, Draupnir, 89Bio, and Esperion Therapeutics; and is Chief Science Officer at NewAmsterdam Pharma. Dr Bode has received research support from CSL Behring. Dr Mahaffey has received research funding from the American Heart Association, Apple, Inc, Bayer, California Institute of Regenerative medicine, CLS Behring, Eidos, Ferring, Gilead, Google (Verily), Idorsia, Johnson & Johnson, Luitpold, Novartis, PAC-12, Predordior, and Sanifit; has served as a consultant for Applied Therapeutics, Bayer, BMS, BridgeBio, CSL Behring, Elsevier, Fosun Pharma, Human, Johnson & Johnson, Moderna, Myokardia, Novartis, Novo Nordisk, Otsuka, Phasebio, Portola, Quidel, and Theravance; and has equity in Human, Medeloop, Precordior, and Regencor. Dr Steg has received research grants from Amarin and Sanofi; has served on clinical trials (steering committee, clinical events committee, data and safety monitoring board [DSMB]) for Amarin, Amgen, AstraZeneca, Bayer, Bristol Myers Squibb, CSL Behring, Idorsia, Janssen, Novartis, Novo Nordisk, Pfizer, and Sanofi; has served as a consultant or speaker for Amarin, Amgen, BMS, and Novo Nordisk; and is Senior Associate Editor at Circulation. Dr Tendera has received consultation fees from the PERFUSE Group for participation in the executive committee, sponsored by CSL Behring for meetings of the study; has received consultation fees from Bayer, Janssen-Cilag, Kowa, and Servier for activities unrelated to the study; and has received a lecture honorarium from Bayer. Dr Bainey has received research support from CSL Behring. Dr Harrington has research relationships with Baim Institute (DSMB), CSL (Randomized Controlled Trial [RCT] Executive Committee), Janssen (RCT Chair), NHLBI (RCT Executive Committee; DSMB Chair), PCORI (RCT Co-Chair), and DCRI; has served as a consultant for Atropos Health, Bitterroot Bio, BMS, BridgeBio, Element Science, Edwards Lifesciences, Foresite Labs, and Medscape/WebMD; and has served on the board of directors for American Heart Association, College of the Holy Cross, and Cytokinetics. Dr Mehran has received institutional research payments from Abbott, Abiomed, Affluent Medical, Alleviant Medical, Amgen, AM-Pharma, Arena, AstraZeneca, AtriCure Inc, Biosensors, Biotronik, Boston Scientific, Bristol Myers Squibb, CardiaWave, CeloNova, CERC, Chiesi, Cleerly Health Inc, Concept Medical, Cytosorbents, Daiichi-Sankyo, Duke, Element Science, Essential Medical, Faraday, Idorsia Pharmaceuticals, Janssen, MedAlliance, Mediasphere, Medtelligence, Medtronic, MJH Healthcare, Novartis, OrbusNeich, Penumbra, PhaseBio, Philips, Pi-Cardia, PLx Pharma, Population Health Research Institute, Protembis, RecCor Medical Inc, RenalPro, RM Global, Sanofi, Shockwave, Vivasure, and Zoll; has received personal fees from Affluent Medical, Boehringer Ingelheim, Cardiovascular Research Foundation (CRF), Cordis, Daiichi-Sankyo Brasil, E.R. Squibb & Sons, Esperion Science/Innovative Biopharma, Europa Group/Boston Scientific, Gaffney Events, Educational Trust, Henry Ford Health Cardiology, Ionis Pharmaceuticals, Lilly and Company, MedCon International, Novartis, Novo Nordisk, PeerView Institute for Medical Education, TERUMO Europe N.V., Vectura, VoxMedia, WebMD, IQVIA, Radcliffe, and TARSUS Cardiology; has served on the Scientific Advisory Board fpr AMA; has served as a Women in Innovations Committee Member for SCAI; has received faculty CRF honorarium from JAMA Cardiology (Associate Editor), ACC (BOT Member, SC Member CTR Program); and has equity <1% in Applied Therapeutics, Elixir Medical, Stel, CntrolRad (spouse). Dr Duerschmied has received speaker honoraria from Daiichi-Sankyo, Bayer Healthcare, Boston Scientific, Pfizer, and AOP Health; and has received consulting fees from Boston Scientific, CSL Behring, and Johnson & Johnson. Dr Kingwell is an employee and shareholder of CSL Ltd. Dr Gibson has received research funding from CSL Behring, Janssen Pharmaceuticals, Johnson & Johnson Corporation, and SCAD Alliance; has received consulting from Angel/Avertix Medical Corporation, AstraZeneca, Bayer Corporation, Beren Therapeutics, Boehringer Ingelheim, Boston Clinical Research Institute, Boston Scientific, Bristol Myers Squibb, Cardiovascular Research Foundation, CeleCor Therapeutics, CSL Behring, DCRI, Esperion, EXCITE International ($0 received), Fortress Biotech, Gilead Sciences, Inc, Janssen, Pharmaceuticals, Johnson & Johnson Corporation, MashUp MD, MD Magazine, Microport, MJHealth, Novartis, NovoNordisk, Pfizer, PHRI, PLxPharma, SCAI, Solstic Health/New Amsterdam Pharma, Somahlution/Marizyme, Vectura, Web MD, and Women as One; has equity in nference, Dyad Medical, Absolutys, Fortress Biotech; and has received royalties as contributor to UpToDate., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)

Background: Cardiovascular events frequently recur after acute myocardial infarction, and low cholesterol efflux - a process mediated by apolipoprotein A1, which is the main protein in high-density lipoprotein - has been associated with an increased risk of cardiovascular events. CSL112 is human apolipoprotein A1 derived from plasma that increases cholesterol efflux capacity. Whether infusions of CSL112 can reduce the risk of recurrent cardiovascular events after acute myocardial infarction is unclear., Methods: We conducted an international, double-blind, placebo-controlled trial involving patients with acute myocardial infarction, multivessel coronary artery disease, and additional cardiovascular risk factors. Patients were randomly assigned to receive either four weekly infusions of 6 g of CSL112 or matching placebo, with the first infusion administered within 5 days after the first medical contact for the acute myocardial infarction. The primary end point was a composite of myocardial infarction, stroke, or death from cardiovascular causes from randomization through 90 days of follow-up., Results: A total of 18,219 patients were included in the trial (9112 in the CSL112 group and 9107 in the placebo group). There was no significant difference between the groups in the risk of a primary end-point event at 90 days of follow-up (439 patients [4.8%] in the CSL112 group vs. 472 patients [5.2%] in the placebo group; hazard ratio, 0.93; 95% confidence interval [CI], 0.81 to 1.05; P = 0.24), at 180 days of follow-up (622 patients [6.9%] vs. 683 patients [7.6%]; hazard ratio, 0.91; 95% CI, 0.81 to 1.01), or at 365 days of follow-up (885 patients [9.8%] vs. 944 patients [10.5%]; hazard ratio, 0.93; 95% CI, 0.85 to 1.02). The percentage of patients with adverse events was similar in the two groups; a higher number of hypersensitivity events was reported in the CSL112 group., Conclusions: Among patients with acute myocardial infarction, multivessel coronary artery disease, and additional cardiovascular risk factors, four weekly infusions of CSL112 did not result in a lower risk of myocardial infarction, stroke, or death from cardiovascular causes than placebo through 90 days. (Funded by CSL Behring; AEGIS-II ClinicalTrials.gov number, NCT03473223.)., (Copyright © 2024 Massachusetts Medical Society.)

Background and Aims: Childhood-onset cardiomyopathies are rare and poorly characterized. This study examined the baseline characteristics and 1-year follow-up of children with cardiomyopathy in the first European Cardiomyopathy Registry., Methods: Prospective data were collected on individuals aged 1-<18 years enrolled in the European Society of Cardiology EURObservational Research Programme Cardiomyopathy and Myocarditis long-term registry (June 2014-December 2016)., Results: A total of 633 individuals aged ≤18 years with hypertrophic [HCM; n = 388 (61.3%)], dilated [DCM; n = 206 (32.5%)], restrictive [RCM; n = 28 (4.4%)], and arrhythmogenic right ventricular cardiomyopathy [ARVC; n = 11 (1.7%)] were enrolled by 23 referral centres in 14 countries. Median age at diagnosis was 4.0 [interquartile range (IQR) 0-10] years, and there was a male predominance [n = 372 (58.8%)] across all subtypes, with the exception of DCM diagnosed <10 years of age; 621 (98.1%) patients were receiving cardiac medication and 80 (12.6%) had an implantable cardioverter-defibrillator. A total of 253 patients (253/535, 47.3%) had familial disease. Genetic testing was performed in 414 (67.8%) patients with a pathogenic or likely pathogenic variant reported in 250 (60.4%). Rare disease phenocopies were reported in 177 patients (28.0%) and were most frequent in patients under 10 years [142 (30.9%) vs. 35 (19.6%); P = .003]. Over a median follow-up of 12.5 months (IQR 11.3-15.3 months), 18 patients (3.3%) died [HCM n = 9 (2.6%), DCM n = 5 (3.0%), RCM n = 4 (16.0%)]. Heart failure events were most frequent in RCM patients (36.0%)., Conclusions: The findings confirm the heterogeneous aetiology of childhood cardiomyopathies and show a high frequency of familial disease. Outcomes differed by cardiomyopathy subtype, highlighting a need for disease-specific evaluation and treatment., (© The Author(s) 2024. Published by Oxford University Press on behalf of the European Society of Cardiology. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)

Background and Aims: Data on new-onset atrial fibrillation (NOAF) in patients with chronic coronary syndromes (CCS) are scarce. This study aims to describe the incidence, predictors, and impact on cardiovascular (CV) outcomes of NOAF in CCS patients., Methods: Data from the international (45 countries) CLARIFY registry (prospeCtive observational LongitudinAl RegIstry oF patients with stable coronary arterY disease) were used. Among 29 001 CCS outpatients without previously reported AF at baseline, patients with at least one episode of AF/flutter diagnosed during 5-year follow-up were compared with patients in sinus rhythm throughout the study., Results: The incidence rate of NOAF was 1.12 [95% confidence interval (CI) 1.06-1.18] per 100 patient-years (cumulative incidence at 5 years: 5.0%). Independent predictors of NOAF were increasing age, increasing body mass index, low estimated glomerular filtration rate, Caucasian ethnicity, alcohol intake, and low left ventricular ejection fraction, while high triglycerides were associated with lower incidence. New-onset atrial fibrillation was associated with a substantial increase in the risk of adverse outcomes, with adjusted hazard ratios of 2.01 (95% CI 1.61-2.52) for the composite of CV death, non-fatal myocardial infarction, or non-fatal stroke, 2.61 (95% CI 2.04-3.34) for CV death, 1.64 (95% CI 1.07-2.50) for non-fatal myocardial infarction, 2.27 (95% CI 1.85-2.78) for all-cause death, 8.44 (95% CI 7.05-10.10) for hospitalization for heart failure, and 4.46 (95% CI 2.85-6.99) for major bleeding., Conclusions: Among CCS patients, NOAF is common and is strongly associated with worse outcomes. Whether more intensive preventive measures and more systematic screening for AF would improve prognosis in this population deserves further investigation., (© The Author(s) 2023. Published by Oxford University Press on behalf of the European Society of Cardiology.)