Evidence map›Paper›PMID 42283668›Full record

ArticleJACC. Asia2026

Clopidogrel Vs Aspirin Monotherapy for Secondary Prevention After Percutaneous Coronary Intervention: A Nationwide Cohort Study.

Jun Hwan Cho, Seng Chan You, Hoseob Kim, Mina Kim, Jinhwan Jo, Sang-Yeub Lee, Sang-Wook Kim, Dirk Sibbing, Diana A Gorog, Dominick J Angiolillo and 4 more

Abstract read
In one paragraph

Article in JACC. Asia, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Jun Hwan ChoDivision of Cardiology, Chung-Ang University Gwangmyeong Hospital, Gwangmyeong, South Korea; Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, South Korea.
Seng Chan YouDepartment of Biomedical Systems Informatics, Yonsei University College of Medicine, Seoul, South Korea; Institute for Innovation in Digital Healthcare, Yonsei University, Seoul, South Korea.
Hoseob KimDepartment of Data Science, Hanmi Pharm. Co., Ltd., Seoul, South Korea.
Mina KimDepartment of Data Science, Hanmi Pharm. Co., Ltd., Seoul, South Korea.
Jinhwan JoDivision of Cardiology, Chung-Ang University Gwangmyeong Hospital, Gwangmyeong, South Korea; Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, South Korea.
Sang-Yeub LeeDivision of Cardiology, Chung-Ang University Gwangmyeong Hospital, Gwangmyeong, South Korea; Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, South Korea.
Sang-Wook KimDivision of Cardiology, Chung-Ang University Gwangmyeong Hospital, Gwangmyeong, South Korea; Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, South Korea.
Dirk SibbingMedizinische Klinik und Poliklinik I, University Hospital Munich, Ludwig-Maximilians University, Munich, Germany; Privatklinik Lauterbacher Mühle am Ostsee, Seeshaupt, Germany.
Diana A GorogCardiovascular Division, Faculty of Medicine, National Heart and Lung Institute, Imperial College London, London, United Kingdom; Centre for Health Services and Clinical Research, Postgraduate Medical School, University of Hertfordshire, Hertfordshire, United Kingdom.
Dominick J AngiolilloDivision of Cardiology, University of Florida College of Medicine, Jacksonville, Florida, USA.
Jacek KubicaDepartment of Cardiology and Internal Medicine, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland.
Udaya S TantrySinai Center for Thrombosis Research and Drug Development, Sinai Hospital, Baltimore, Maryland, USA.
Paul A GurbelSinai Center for Thrombosis Research and Drug Development, Sinai Hospital, Baltimore, Maryland, USA.
Young-Hoon JeongDepartment of Internal Medicine, Chung-Ang University College of Medicine, Seoul, South Korea; CAU Thrombosis and Biomarker Center, Chung-Ang University Gwangmyeong Hospital, Gwangmyeong, South Korea. Electronic address: goodoctor@naver.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAfter guideline-recommended dual antiplatelet therapy (DAPT) following percutaneous coronary intervention (PCI), long-term antiplatelet monotherapy is advised, but the optimal agent in real-world practice remains uncertain.

objectivesThe authors aimed to compare efficacy and safety of clopidogrel versus aspirin monotherapy in stable post-PCI patients.

methodsUsing the Korean nationwide claims and health examination database, we identified PCI-treated patients maintained on clopidogrel or aspirin monotherapy between 2009 and 2019. The co-primary outcomes were major adverse cardiovascular events (a composite of cardiovascular death, myocardial infarction or ischemic stroke) and major bleeding.

resultsAmong 133,454 patients receiving DAPT, 67,652 (50.7%) continued with clopidogrel monotherapy and 65,802 (49.3%) continued with aspirin monotherapy. The median durations of DAPT and monotherapy duration were 1.0 year (IQR: 0.8-1.2) and 3.3 years (IQR: 1.3-6.2), respectively. After stabilized inverse probability of treatment weighting, clopidogrel monotherapy was associated with lower risks of major adverse cardiovascular events (HR: 0.759; 95% CI: 0.733-0.785; P < 0.0001) and major bleeding (HR: 0.895; 95% CI: 0.848-0.945; P < 0.0001) compared with aspirin monotherapy. Clopidogrel monotherapy was associated with lower risks of cardiovascular death (HR: 0.605; 95% CI: 0.573-0.638; P < 0.0001), myocardial infarction (HR: 0.921; 95% CI: 0.877-0.968; P = 0.0011), and ischemic stroke (HR: 0.674; 95% CI: 0.624-0.729; P < 0.0001) than aspirin monotherapy. The treatment effects were consistent across prespecified subgroups and DAPT durations.

conclusionsIn the stable post-PCI period, clopidogrel monotherapy may be preferred over aspirin monotherapy for long-term prevention due to its efficacy and safety.

Indexed as

aspirincardiovascular event, clopidogrel, dual antiplatelet therapy, percutaneous coronary intervention

Identifiers

PMID42283668
PMCPMC13458962

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.