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1-Month Dual-Antiplatelet Therapy Followed by Aspirin Monotherapy After Polymer-Free Drug-Coated Stent Implantation: 1-Month DAPT Trial

 Sung-Jin Hong  ;  Jung-Sun Kim  ;  Soon Jun Hong  ;  Do-Sun Lim  ;  Seung-Yul Lee  ;  Kyeong Ho Yun  ;  Jong-Kwan Park  ;  Woong Chol Kang  ;  Yong Hoon Kim  ;  Hyuck-Jun Yoon  ;  Hoyoun Won  ;  Chung-Mo Nam  ;  Chul-Min Ahn  ;  Byeong-Keuk Kim  ;  Young-Guk Ko  ;  Donghoon Choi  ;  Yangsoo Jang  ;  Myeong-Ki Hong 
 JACC-CARDIOVASCULAR INTERVENTIONS, Vol.14(16) : 1801-1811, 2021-07 
Journal Title
Issue Date
antiplatelet therapy ; drug-eluting stents ; percutaneous coronary intervention
Objectives: The aim of this study was to determine whether 1 month of dual-antiplatelet therapy (DAPT) followed by aspirin monotherapy after polymer-free drug-coated stent (PF-DCS) implantation is noninferior to 6 to 12 months of DAPT after biodegradable-polymer drug-eluting stent (BP-DES) implantation. Background: It is necessary to determine the optimal minimal duration of DAPT followed by aspirin monotherapy after percutaneous coronary intervention (PCI). Methods: In this trial, 3,020 patients with coronary artery disease considered for PCI for noncomplex lesions were randomized to 1-month DAPT after PF-DCS (n = 1,507) or 6- to 12-month DAPT after BP-DES (n = 1,513). The primary endpoint was the 1-year composite of cardiac death, nonfatal myocardial infarction, target vessel revascularization, stroke, or major bleeding (noninferiority hypothesis margin of 3%). Results: The primary endpoint occurred in 88 patients (5.9%) in the 1-month DAPT after PF-DCS group and 98 patients (6.5%) in the 6- to 12-month DAPT after BP-DES group (absolute difference -0.7%; upper limit of 1-sided 97.5% confidence interval: 1.33%; P < 0.001 for noninferiority). The occurrence of major bleeding was not different (1.7% vs 2.5%; P = 0.136). There was no difference in the occurrence of stent thrombosis (0.7% vs 0.8%; P = 0.842). Conclusions: Among patients who underwent PCI for noncomplex lesions, 1-month DAPT followed by aspirin monotherapy after PF-DCS implantation was noninferior to 6- to 12-month DAPT after BP-DES implantation for the 1-year composite of cardiovascular events or major bleeding. The present findings need to be interpreted in the setting of different types of stents according to antiplatelet strategy. (A Randomized Controlled Comparison Between One Versus More Than Six Months of Dual Antiplatelet Therapy After Biolimus A9-Eluting Stent Implantation; NCT02513810).
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Preventive Medicine (예방의학교실) > 1. Journal Papers
Yonsei Authors
Ko, Young Guk(고영국) ORCID logo https://orcid.org/0000-0001-7748-5788
Kim, Byeong Keuk(김병극) ORCID logo https://orcid.org/0000-0003-2493-066X
Kim, Jung Sun(김중선) ORCID logo https://orcid.org/0000-0003-2263-3274
Nam, Chung Mo(남정모) ORCID logo https://orcid.org/0000-0003-0985-0928
Ahn, Chul-Min(안철민) ORCID logo https://orcid.org/0000-0002-7071-4370
Jang, Yang Soo(장양수) ORCID logo https://orcid.org/0000-0002-2169-3112
Choi, Dong Hoon(최동훈) ORCID logo https://orcid.org/0000-0002-2009-9760
Hong, Myeong Ki(홍명기) ORCID logo https://orcid.org/0000-0002-2090-2031
Hong, Sung Jin(홍성진) ORCID logo https://orcid.org/0000-0003-4893-039X
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