Evidence map›Paper›PMID 28959461›Full record

Trial reportStroke and vascular neurology2016

Dual antiplatelet therapy may increase the risk of non-intracranial haemorrhage in patients with minor strokes: a subgroup analysis of the CHANCE trial.

David Wang, Li Gui, Yi Dong, Hao Li, Shujuan Li, Huaguang Zheng, Anxin Wang, Xia Meng, Li-Ping Liu, Yi-Long Wang and 5 more

Registry-linked trialOpen access · goldAbstract readComparative StudyMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Stroke and vascular neurology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00979589 (Randomized,Double-blind Trial Comparing the Effects of a 3-month Clopidogrel Regimen,Combined With ASA During the First 21days,Versus ASA Alone for the Acute Treatment of TIA or Minor Stroke), which is not on this map. Cited by 21 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 3 pooled it
2.1field-weighted citation impact, top 13% of its field
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.

NCT00979589 phase3completednot on this map

Randomized,Double-blind Trial Comparing the Effects of a 3-month Clopidogrel Regimen,Combined With ASA During the First 21days,Versus ASA Alone for the Acute Treatment of TIA or Minor Stroke

TypeinterventionalSponsorBeijing Tiantan HospitalRan2009 to 2012Enrolled5,100ConditionsStroke, Transient Ischemic AttackArmsClopidogrel, Placebo of clopidogrel and Asprin
3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 3 syntheses or guidelines pooled it, 32 citations in OpenAlex.

  1. Antiplatelet agents for chronic kidney disease.The Cochrane database of systematic reviews · 2022
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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

15 authors at 5 institutions in 2 countries.

David WangIllinois Neurological Institute Stroke Network, Sisters of the Third Order of St. Francis Healthcare System, University of Illinois College of Medicine, Peoria, Illinois, USA.
Li GuiSouthwest Hospital Stroke Center, Third Military University of Medical Sciences, Chongqing, China.
Yi DongDepartment of Neurology, Huashan Hospital, Fudan University, Shanghai, China.
Hao LiChina National Clinical Research Center for Neurological Diseases, Beijing, China.
Shujuan LiChaoyang Hospital Neurology Department, Capital Medical University, Beijing, China.
Huaguang ZhengDepartment of Neurology, Beijing Tiantan Hospital, Tiantan Clinical Trial and Research Center for Stroke, Capital Medical University, Beijing, China.
Anxin WangChina National Clinical Research Center for Neurological Diseases, Beijing, China.
Xia MengChina National Clinical Research Center for Neurological Diseases, Beijing, China.
Li-Ping LiuDepartment of Neurology, Beijing Tiantan Hospital, Tiantan Clinical Trial and Research Center for Stroke, Capital Medical University, Beijing, China.
Yi-Long WangChina National Clinical Research Center for Neurological Diseases, Beijing, China.
Guangyao WangChina National Clinical Research Center for Neurological Diseases, Beijing, China.
Jing JingDepartment of Neurology, Beijing Tiantan Hospital, Tiantan Clinical Trial and Research Center for Stroke, Capital Medical University, Beijing, China.
Zixiao LiChina National Clinical Research Center for Neurological Diseases, Beijing, China.
Xing-Quan ZhaoChina National Clinical Research Center for Neurological Diseases, Beijing, China.
Yong-Jun WangChina National Clinical Research Center for Neurological Diseases, Beijing, China.
Capital Medical University · CNFudan University · CNIllinois College · USNational Clinical Research Center for Digestive Diseases · CNSouthwest Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimThe aim of this study was to explore the difference between haemorrhagic events among those patients on either aspirin or aspirin plus clopidogrel who were enrolled in the Clopidogrel in High-Risk Patients with Acute Non-disabling Ischemic Cerebrovascular Events (CHANCE) trial.

methodsThis was an ad hoc analysis of the CHANCE trial; data on all patients with any haemorrhagic event were reviewed and analysed. Cox proportional hazards regression was used to determine factors association with any bleeding.

resultsIn the CHANCE trial, there were a total of 101 (2%) haemorrhagic events reported from 50 different hospitals. The clopidogrel-aspirin group had 60 (2.3%) cases and the aspirin group had 41 (1.6%, p=0.09). Moderate or severe haemorrhagic events occurred in 7 patients (0.3%) in the clopidogrel-aspirin group and in 8 (0.3%) in the aspirin group (p=0.73). Of 36 (0.7%) cases of intracranial haemorrhages, 20 (0.4%) were in the clopidogrel-aspirin group and 16 (0.3%) in the aspirin group. Each group had 8 (0.3%) cases of symptomatic haemorrhagic strokes. Other common haemorrhagic events included 24 (0.5%) cases of skin bruises, 13 (0.3%) gastrointestinal haemorrhages, 9 (0.2%) gum haemorrhages and 8 (0.2%) intraocular haemorrhages.

conclusionsThere was no overall significant difference in haemorrhagic events (p=0.29), especially in the rate of intracranial haemorrhages between the 2 treatment groups. However, patients enrolled with minor strokes had an increased risk of haemorrhagic events regardless of treatment group, not seen in patients with high-risk transient ischaemic attacks. Being elderly, of male gender and with a history of aspirin or proton pump inhibitor usage were associated with increased risk of haemorrhage. Patients with higher body mass index had lower risk of haemorrhagic events. TRIAL REGISTRATION NUMBER: NCT00979589.

Indexed as

AgedAspirinChinaClopidogrelDouble-Blind MethodDual Anti-Platelet TherapyHemorrhageHumansIschemic Attack, TransientIschemic StrokeMaleMiddle AgedPlatelet Aggregation InhibitorsProspective StudiesRisk AssessmentRisk FactorsAspirinClopidogrelPlatelet Aggregation Inhibitorsdual antiplateletHemorrhageminor strokestroke preventionTIA

Identifiers

PMID28959461
PMCPMC5435197
OpenAlexW2434322604

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

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.