Evidence map›Paper›PMID 40944685›Full record

ArticleJACC. Asia2025

CYP2C19 Polymorphism and Clopidogrel Efficacy in Long-Term Outcomes of Large-Artery Atherosclerotic Stroke: The NCVC Genome Registry.

Takeshi Yoshimoto, Yorito Hattori, Hiroyuki Ishiyama, Yuriko Nakaoku, Soshiro Ogata, Soichiro Abe, Kenji Ninomiya, Kunihiro Nishimura, Masafumi Ihara

Abstract read
In one paragraph

Article in JACC. Asia, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. 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

9 authors.

Takeshi YoshimotoDepartment of Neurology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan; Department of Stroke and Cerebrovascular Diseases, University of Tsukuba Hospital, Tsukuba, Ibaraki, Japan.
Yorito HattoriDepartment of Neurology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan; Department of Preemptive Medicine for Dementia, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan. Electronic address: yoh2019@ncvc.go.jp.
Hiroyuki IshiyamaDepartment of Neurology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
Yuriko NakaokuDepartment of Preventive Medicine and Epidemiology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
Soshiro OgataDepartment of Preventive Medicine and Epidemiology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
Soichiro AbeDepartment of Neurology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
Kenji NinomiyaAnalytical & Measuring Instruments Division, Shimadzu Corporation, Kyoto, Japan.
Kunihiro NishimuraDepartment of Preventive Medicine and Epidemiology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
Masafumi IharaDepartment of Neurology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan. Electronic address: ihara@ncvc.go.jp.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCYP2C19 polymorphisms influence clopidogrel metabolism, which may influence long-term stroke prognosis.

objectivesThe authors sought to investigate whether CYP2C19 polymorphisms were associated with long-term recurrent ischemic events in patients with acute ischemic stroke due to large-artery atherosclerosis (LAA).

methodsThe present study, comprising a sub-data set from the National Cerebral and Cardiovascular Center Genome Registry-a data registry from a multicenter, prospective, observational study-enrolled patients with LAA stroke within 7 days of stroke onset who consented to genotyping of CYP2C19 polymorphism between 2004 and 2022. Based on CYP2C19 polymorphisms, participants were assigned to 1 of 3 groups: extensive metabolizers (∗1/∗1), intermediate metabolizers (∗1/∗2, ∗1/∗3), and poor metabolizers (∗2/∗2, ∗2/∗3, ∗3/∗3). The primary endpoint was the recurrence of symptomatic ischemic stroke/transient ischemic attack.

resultsAmong 369 participants with LAA stroke (96 females [26.0%]; age, median [Q1-Q3], 74 [65-80] years) and a median follow-up of 5.1 years, poor or intermediate metabolizers (PM/IMs) (n = 164) had a significantly higher risk of recurrent symptomatic ischemic stroke transient ischemic attack than extensive metabolizers (n = 205) (adjusted HR: 2.33; 95% CI: 1.28-4.24). Furthermore, restricting the analysis to patients taking clopidogrel, PM/IMs exhibited a similarly significant risk (adjusted HR: 5.26; 95% CI: 1.87-14.56).

conclusionsIn patients with LAA stroke, CYP2C19 PM/IMs had a significantly higher long-term recurrence rate of ischemic events than extensive metabolizers.

Indexed as

acute ischemic strokeCYP2C19large-artery atherosclerosispharmacogeneticspolymorphism

Identifiers

PMID40944685
PMCPMC12673833

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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.