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Abbreviated Antiplatelet Therapy After Coronary Stenting in Patients With Myocardial Infarction at High Bleeding Risk

PC. Smits, E. Frigoli, P. Vranckx, Y. Ozaki, MC. Morice, B. Chevalier, Y. Onuma, S. Windecker, PAL. Tonino, M. Roffi, M. Lesiak, F. Mahfoud, J. Bartunek, D. Hildick-Smith, A. Colombo, G. Stankovic, A. Iñiguez, C. Schultz, R. Kornowski, PJL. Ong,...

. 2022 ; 80 (13) : 1220-1237. [pub] 20220927

Language English Country United States

Document type Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't

BACKGROUND: The optimal duration of antiplatelet therapy (APT) after coronary stenting in patients at high bleeding risk (HBR) presenting with an acute coronary syndrome remains unclear. OBJECTIVES: The objective of this study was to investigate the safety and efficacy of an abbreviated APT regimen after coronary stenting in an HBR population presenting with acute or recent myocardial infarction. METHODS: In the MASTER DAPT trial, 4,579 patients at HBR were randomized after 1 month of dual APT (DAPT) to abbreviated (DAPT stopped and 11 months single APT or 5 months in patients with oral anticoagulants) or nonabbreviated APT (DAPT for minimum 3 months) strategies. Randomization was stratified by acute or recent myocardial infarction at index procedure. Coprimary outcomes at 335 days after randomization were net adverse clinical outcomes events (NACE); major adverse cardiac and cerebral events (MACCE); and type 2, 3, or 5 Bleeding Academic Research Consortium bleeding. RESULTS: NACE and MACCE did not differ with abbreviated vs nonabbreviated APT regimens in patients with an acute or recent myocardial infarction (n = 1,780; HR: 0.83; 95% CI: 0.61-1.12 and HR: 0.86; 95% CI: 0.62-1.19, respectively) or without an acute or recent myocardial infarction (n = 2,799; HR: 1.03; 95% CI: 0.77-1.38 and HR: 1.13; 95% CI: 0.80-1.59; Pinteraction = 0.31 and 0.25, respectively). Bleeding Academic Research Consortium 2, 3, or 5 bleeding was significantly reduced in patients with or without an acute or recent myocardial infarction (HR: 0.65; 95% CI: 0.46-0.91 and HR: 0.71; 95% CI: 0.54-0.92; Pinteraction = 0.72) with abbreviated APT. CONCLUSIONS: A 1-month DAPT strategy in patients with HBR presenting with an acute or recent myocardial infarction results in similar NACE and MACCE rates and reduces bleedings compared with a nonabbreviated DAPT strategy. (Management of High Bleeding Risk Patients Post Bioresorbable Polymer Coated Stent Implantation With an Abbreviated Versus Prolonged DAPT Regimen [MASTER DAPT]; NCT03023020).

1st Department of Cardiology University of Medical Sciences Poznan Poland

Brighton and Sussex University Hospitals NHS Trust Brighton United Kingdom

Cardiac Center King Fahad Armed Forces Hospital Jeddah Saudi Arabia

Cardiac Unit Otamendi Hospital Buenos Aires School of Medicine Cardiovascular Research Center Buenos Aires Argentina

Cardiocentro Ticino Institute Ente Ospedaliero Cantonale Università della Svizzera Italiana CH 6900 Lugano Switzerland

Cardiovascular Center OLV Hospital Aalst Belgium

Cardiovascular European Research Center Massy France

Clinical Trial Unit University of Bern Bern Switzerland

Department of Biomedical Sciences Humanitas University Pieve Emanuele Milan and Humanitas Clinical and Research Center IRCCS Rozzano Milan Italy

Department of Cardiology and Critical Care Medicine Hartcentrum Hasselt Jessa Ziekenhuis Hasselt Belgium

Department of Cardiology Angiology Intensive Care Medicine Saarland University Homburg Germany

Department of Cardiology Bern University Hospital Bern Switzerland

Department of Cardiology Catharina Hospital Eindhoven the Netherlands

Department of Cardiology Clinical Center of Serbia and Faculty of Medicine University of Belgrade Belgrade Serbia

Department of Cardiology Fujita Health University School of Medicine Toyoake Aichi Japan

Department of Cardiology Imelda Hospital Bonheiden Bonheiden Belgium

Department of Cardiology Maasstad Hospital Rotterdam the Netherlands

Department of Cardiology Royal Perth Hospital Campus University of Western Australia Perth Western Australia Australia

Department of Cardiology Zorgsaam Hospital Terneuzen the Netherlands

Division of Cardiology Geneva University Hospitals Geneva Switzerland

Faculty of Medicine and Life Sciences Hasselt University Hasselt Belgium

Hospital Alvaro Cunqueiro Vigo Spain

National University of Ireland Galway Ireland

Rabin Medical Center Sackler School of Medicine Tel Aviv University Tel Aviv Israel

Ramsay Générale de Santé Interventional Cardiology Department Institut Cardiovasculaire Paris Sud Massy France

Tan Tock Seng Hospital Singapore

University Clinic of Cardiology Ss Cyril and Methodius University Skopje Macedonia

University Hospital Brno Brno Czech Republic

References provided by Crossref.org

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