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Abbreviated or Standard Antiplatelet Therapy in HBR Patients: Final 15-Month Results of the MASTER-DAPT Trial

A. Landi, D. Heg, E. Frigoli, P. Vranckx, S. Windecker, P. Siegrist, G. Cayla, A. Włodarczak, S. Cook, I. Gómez-Blázquez, Y. Feld, P. Seung-Jung, M. Mates, C. Lotan, S. Gunasekaran, M. Nanasato, R. Das, H. Kelbæk, E. Teiger, J. Escaned, Y....

. 2023 ; 16 (7) : 798-812. [pub] 2023Apr10

Language English Country United States

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

BACKGROUND: Clinical outcomes and treatment selection after completing the randomized phase of modern trials, investigating antiplatelet therapy (APT) after percutaneous coronary intervention (PCI), are unknown. OBJECTIVES: The authors sought to investigate cumulative 15-month and 12-to-15-month outcomes after PCI during routine care in the MASTER DAPT trial. METHODS: The MASTER DAPT trial randomized 4,579 high bleeding risk patients to abbreviated (n = 2,295) or standard (n = 2,284) APT regimens. Coprimary outcomes were net adverse clinical outcomes (NACE) (all-cause death, myocardial infarction, stroke, and BARC 3 or 5 bleeding); major adverse cardiac and cerebral events (MACCE) (all-cause death, myocardial infarction, and stroke); and BARC type 2, 3, or 5 bleeding. RESULTS: At 15 months, prior allocation to a standard APT regimen was associated with greater use of intensified APT; NACE and MACCE did not differ between abbreviated vs standard APT (HR: 0.92 [95% CI: 0.76-1.12]; P = 0.399 and HR: 0.94 [95% CI: 0.76-1.17]; P = 0.579; respectively), as during the routine care period (HR: 0.81 [95% CI: 0.50-1.30]; P = 0.387 and HR: 0.74 [95% CI: 0.43-1.26]; P = 0.268; respectively). BARC 2, 3, or 5 was lower with abbreviated APT at 15 months (HR: 0.68 [95% CI: 0.56-0.83]; P = 0.0001) and did not differ during the routine care period. The treatment effects during routine care were consistent with those observed within 12 months after PCI. CONCLUSIONS: At 15 months, NACE and MACCE did not differ in the 2 study groups, whereas the risk of major or clinically relevant nonmajor bleeding remained lower with abbreviated compared with standard APT. (Management of High Bleeding Risk Patients Post Bioresorbable Polymer Coated Stent Implantation With an Abbreviated Versus Prolonged DAPT Regimen [MASTER DAPT]; NCT03023020).

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

Cardiocentro Ticino Institute Ente Ospedaliero Cantonale Università della Svizzera Italiana Lugano Switzerland https twitter com antoniolandii

Cardiology Department Rambam Healthcare Campus Haifa Israel

Cardiothoracic Centre Freeman Hospital Newcastle United Kingdom

CTU Bern University of Bern Bern Switzerland

Department of Biomedical Sciences University of Italian Switzerland Lugano Switzerland

Department of Cardiology Apollo Main Hospital Chennai India

Department of Cardiology Bern University Hospital Bern Switzerland

Department of Cardiology Fribourg Hospital Cantonal Villars Sur Glâne Fribourg Switzerland

Department of Cardiology Hospital Clínico San Carlos IDISSC and Universidad Complutense de Madrid Madrid Spain

Department of Cardiology Hospital Universitario 12 de Octubre Madrid Spain

Department of Cardiology Institute for Cardiovascular Disease Sremaska Kamenica Serbia

Department of Cardiology Maasstad Hospital Rotterdam the Netherlands

Department of Cardiology Miedziowe Centrum Zdrowia Lubin Poland

Department of Cardiology Na Homolce Hospital Cardiovascular Center Prague Czech Republic

Department of Cardiology Nimes University Hospital University of Montpellier Nimes France

Department of Cardiology Sakakibara Heart Institute Tokyo Japan

Department of Cardiology University Hospital Henri Mondor Créteil France

Department of Cardiology Zealand University Hospital Roskilde Denmark

Department of Cardiovascular Medicine Gifu Heart Center Gifu Japan

Department of Internal Medicine Division of Cardiology St Marianna University School of Medicine Kawasaki Japan

Department of Internal Medicine Sungkyunkwan University School of Medicine Seoul Republic of Korea

Faculty of Medicine and Life Sciences Hasselt University Hasselt Belgium

Heart Center Hadassah Medical Center Faculty of Medicine Hebrew University Jerusalem Israel

HerzZentrum Hirslanden Zurich Switzerland

Sorbonne University ACTION group Groupe Hospitalier Pitie Salpetriere Hospital Paris France

References provided by Crossref.org

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