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Updated: May 28, 2026

A Fibrin-Enriched and tPA-Sensitive Photothrombotic Stroke Model
Published on: June 4, 2021
[Clopidogrel and stroke]
Manuel Rodríguez-Yáñez1, Susana Arias-Rivas, José Fernández-Ferro
1Servicio de Neurología, Hospital Clinico de Santiago de Compostela, 15706 Santiago de Compostela, Espana.
Insights
Clopidogrel, an antiplatelet drug, effectively prevents ischemic stroke and vascular events, particularly in high-risk patients. It offers benefits over aspirin due to its unique mechanism and anti-inflammatory properties.
Area of Science:
- Neurology
- Cardiology
- Pharmacology
Background:
- Ischemic stroke remains a leading cause of disability and death in industrialized nations.
- Antiplatelet therapy, including aspirin, is crucial for reducing vascular event risk.
- Novel antiplatelet agents like clopidogrel offer alternative mechanisms and potential advantages.
Purpose of the Study:
- To review studies on clopidogrel's efficacy in preventing ischemic stroke.
- To compare clopidogrel's effectiveness with aspirin and other antiplatelet strategies.
- To explore clopidogrel's role in monotherapy and combination treatment.
Main Methods:
- Review of clinical studies investigating clopidogrel for stroke prevention.
- Analysis of clopidogrel's mechanism of action, including P2Y12 receptor inhibition.
- Evaluation of clopidogrel's pleiotropic effects, such as anti-inflammatory actions.
Main Results:
- Clopidogrel demonstrated superior efficacy over aspirin in preventing vascular events in high-risk populations.
- The drug inhibits adenosine diphosphate-mediated platelet aggregation.
- Clopidogrel exhibits beneficial anti-inflammatory effects during ischemic events.
Conclusions:
- Clopidogrel is a valuable therapeutic option for ischemic stroke prevention.
- Its efficacy is particularly notable in patients with high cardiovascular risk.
- Further research supports clopidogrel's use, alone or in combination, for vascular event reduction.
Abstract:
Despite the significant reduction in mortality, ischemic stroke is the leading cause of morbidity and mortality in adults in industrialized countries. Antiplatelet therapy has reduced the risk of stroke and other vascular events. Although most commonly used treatment is aspirin, other antiplatelet drugs with different mechanisms of action have been developed. Clopidogrel blocks platelet aggregation by inhibiting the adenosine diphosphate receptor and the subsequent activation of the complex IIb/IIIa. In addition to its antiplatelet action, it also has pleiotropic effects, reducing the inflammatory mechanisms that occur during ischemia. Clopidogrel has demonstrated a benefit over aspirin in preventing vascular events, especially in patients at high cardiovascular risk. In this paper we review the main studies that have been conducted with clopidogrel in preventing ischemic stroke, either as monotherapy or in combination with other antiplatelet agents.
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