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Drug: Clopidogrel

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Total 1913 results found since Jan 2013.

Clopidogrel Plus Aspirin Versus Warfarin in Patients With Stroke and Aortic Arch Plaques Major Clinical Trial
Conclusions— Because of lack of power, this trial was inconclusive and results should be taken as hypothesis generating. Clinical Trial Registration— URL: http://www.clinicaltrials.gov. Unique identifier: NCT00235248.
Source: Stroke - April 28, 2014 Category: Neurology Authors: Amarenco, P., Davis, S., Jones, E. F., Cohen, A. A., Heiss, W.-D., Kaste, M., Laouenan, C., Young, D., Macleod, M., Donnan, G. A., The Aortic Arch Related Cerebral Hazard Trial Investigators, Bladin, Chambers, Frayne, Hankey, Levi, Read, Ravaud, Tatlisuma Tags: Anticoagulants, Antiplatelets Major Clinical Trial Source Type: research

Assessment of Platelet Function in Acute Ischemic Stroke Patients Previously Treated with Aspirin
Platelet inhibition measured by platelet function tests could be critical to understand the reasons for early recurrence and to guide therapeutic recommendations. We assess the platelet function during the acute phase of ischemic stroke in patients pretreated with aspirin who continue their treatment with aspirin only, are started on clopidogrel only, or add clopidogrel to aspirin.
Source: Journal of Stroke and Cerebrovascular Diseases - October 16, 2014 Category: Neurology Authors: Aida Lago, Vera Parkhutik, Jose Ignacio Tembl, Juana Vallés, Maria Teresa Santos, Antonio Moscardó Source Type: research

Genotype and Early Ischemic Lesion Recurrence in Stroke Patients Treated with Clopidogrel
Early recurrent ischemic lesions detected on diffusion-weighted imaging (DWI) have been proposed as a surrogate marker for clinical recurrence. We hypothesized that cytochrome P450 2C19 (CYP2C19) genotype influences the incidence of early recurrence on DWI in acute stroke patients treated with clopidogrel.
Source: Journal of Stroke and Cerebrovascular Diseases - December 16, 2014 Category: Neurology Authors: Tae-Dong Jeong, Seung Min Kim, Hyo Jin Kim, Woochang Lee, Sun U. Kwon, Won-Ki Min, Dong-Wha Kang, Sail Chun Source Type: research

Clopidogrel Resistance after Minor Ischemic Stroke or Transient Ischemic Attack is Associated with Radiological Cerebral Small-Vessel Disease
The objective of this study was to compare nonresponders (NR) and responders (R) to clopidogrel with respect to presence of microvascular and macrovascular pathology in a cohort of patients with recent minor ischemic stroke (IS) or transient ischemic attack (TIA).
Source: Journal of Stroke and Cerebrovascular Diseases - August 23, 2015 Category: Neurology Authors: Annika Lundström, Håkan Wallén, Magnus von Arbin, Gun Jörneskog, Bruna Gigante, Karin Höeg embrower, Evaldas Laurencikas, Ann Charlotte Laska Source Type: research

Relationship between Inflammation and Aspirin and Clopidogrel Antiplatelet Responses in Acute Ischemic Stroke
We measured serum levels of proinflammatory/prothrombotic markers P-selectin, CD40L, matrix metalloproteinase 9 (MMP-9), intracellular adhesion molecule 1 (ICAM-1), and interleukin (IL)-6 in ischemic stroke patients, correlating their levels with the results of aspirin (ASA) and clopidogrel antiplatelet responses, using 3 “point of care” platelet function instruments, thromboelastograph (TEG), Accumetrics (ACU), and impedance aggregometer (IMP).
Source: Journal of Stroke and Cerebrovascular Diseases - November 12, 2015 Category: Neurology Authors: Zohara Sternberg, Trevor Chichelli, Daniel Sternberg, Robert Sawyer, Marilou Ching, David Janicke, Julian L. Ambrus, Jinhee Yu, Frederick Munschauer Source Type: research

Clopidogrel Resistance Increases Rate of Recurrent Stroke and Other Vascular Events in Chinese Population
Research regarding clopidogrel resistance (CR) and ischemic stroke (IS) recurrence related to IS is scanty. The aim of the present study was to determine the incidence of CR and the association between CR and IS recurrence and other vascular events in patients with IS receiving clopidogrel.
Source: Journal of Stroke and Cerebrovascular Diseases - February 26, 2016 Category: Neurology Authors: Xingyang Yi, Jing Lin, Qiang Zhou, Lang Wu, Wen Cheng, Chun Wang Source Type: research

CYP2C19 gene variants undermine clopidogrel stroke prevention
The first look at CYP2C19 mutations in the context of a randomised controlled trial has confirmed suspicions that they affect the efficacy of clopidogrel in patients with acute stroke.
Source: MedWire News - June 24, 2016 Category: Consumer Health News Tags: Stroke Source Type: news

Associations of CYP3A4, NR1I2, CYP2C19 and P2RY12 polymorphisms with clopidogrel resistance in Chinese patients with ischemic stroke
Jing Jin & Min Huang
Source: Acta Pharmacologica Sinica - June 30, 2016 Category: Drugs & Pharmacology Authors: Rui LiuZi-yi ZhouYi-bei ChenJia-li LiWei-bang YuXin-meng ChenMin ZhaoYuan-qi ZhaoYe-feng CaiJing JinMin Huang Tags: clopidogrel resistance ischemic stroke genotype analysis SNPs CYP3A4*1G NR1I2 CYP2C19*2 P2RY12 pharmacogenomics Source Type: research

Concomitant Use of Proton Pump Inhibitors and Clopidogrel Is Not Associated with Adverse Outcomes after Ischemic Stroke in Chinese Population
Conflicting data exist as to whether proton pump inhibitors (PPIs) diminish the efficacy of clopidogrel. We, therefore, assessed the effect of concomitant PPI use in ischemic stroke (IS) patients receiving clopidogrel.
Source: Journal of Stroke and Cerebrovascular Diseases - August 17, 2016 Category: Neurology Authors: Xingyang Yi, Qiang Zhou, Chun Wang, Jing Lin, Wen Cheng, Lifen Chi Source Type: research

Letter by Moris and Avgerinos Regarding Article, “Recurrent Ischemic Lesions After Acute Atherothrombotic Stroke: Clopidogrel Plus Aspirin Versus Aspirin Alone” Letter to the Editor
Source: Stroke - November 27, 2016 Category: Neurology Authors: Demetrios Moris, Efthymios Avgerinos Tags: Cerebrovascular Disease/Stroke Letters to the Editor Source Type: research

Effect of atorvastatin co ‐treatment on inhibition of platelet activation by clopidogrel in patients with ischemic stroke
International Journal of Stroke,Volume 10, Issue 8, Page E90-E91, December 2015.
Source: International Journal of Stroke - November 18, 2015 Category: Neurology Source Type: research

High on-clopidogrel platelet reactivity in ischaemic stroke or transient ischaemic attack: Systematic review and meta-analysis
To assess the prevalence of high on-clopidogrel platelet reactivity (HCPR) in patients with ischaemic stroke or transient ischaemic attack (IS/TIA), their outcome and genetic basis of on-treatment response variability in IS/TIA patients.
Source: Journal of Stroke and Cerebrovascular Diseases - May 13, 2020 Category: Neurology Authors: Vafa Alakbarzade, Xuya Huang, Irina Chis Ster, Meriel McEntagart, Anthony C. Pereira Source Type: research

CYP2C19 Loss-of-Function is Associated with Increased Risk of Ischemic Stroke after Transient Ischemic Attack in Intracranial Atherosclerotic Disease
Intracranial atherosclerotic disease (ICAD) is responsible for 8-10% of acute ischemic strokes, and resistance to antiplatelet therapy is prevalent. CYP2C19 gene loss-of-function (up to 45% of patients) causes clopidogrel resistance. For patients with asymptomatic ICAD and ICAD characterized by transient ischemic attack (TIA), this study measures the effect of CYP2C19 loss-of-function on ischemic stroke risk during clopidogrel therapy.
Source: Journal of Stroke and Cerebrovascular Diseases - November 24, 2020 Category: Neurology Authors: Pious D. Patel, Praveen Vimalathas, Xinnan Niu, Chevis N. Shannon, Joshua C. Denny, Josh F. Peterson, Rohan V. Chitale, Matthew R. Fusco Source Type: research

Platelet Count Predicts Adverse Clinical Outcomes After Ischemic Stroke or TIA: Subgroup Analysis of CNSR II
Conclusion: In ischemic stroke or TIA patients with platelet count within normal range, platelet count may be a qualified predictor for long-term recurrent stroke, mortality, and poor functional outcome. Introduction Platelets exert a critical role in the pathogenesis of atherosclerotic complications of cardio-cerebrovascular disease, contributing to thrombus formation, and embolism (1, 2). Previous literature reported that platelets of various size and density are produced by megakaryocytes of different size and stages of maturation in different clinical conditions, suggesting various platelet patterns in differen...
Source: Frontiers in Neurology - April 11, 2019 Category: Neurology Source Type: research