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Published on: March 15, 2022
Facts and controversies of aspirin and clopidogrel therapy
David P Faxon1, Jane E Freedman
1Department of Medicine, Brigham and Women's Hospital, Boston, MA 02120, USA. dfaxon@partners.org
Insights
Aspirin and clopidogrel are vital for preventing atherothrombosis, but questions about optimal use, including dosing and duration, persist. This review clarifies facts and controversies surrounding these key antiplatelet agents.
Area of Science:
- Cardiology
- Pharmacology
- Vascular Medicine
Background:
- Platelets play a central role in ischemic events and atherothrombosis.
- Aspirin and clopidogrel are cornerstone antiplatelet agents recommended in treatment guidelines.
- Despite established efficacy, controversies exist regarding their optimal clinical application.
Purpose of the Study:
- To review the current evidence and ongoing debates concerning aspirin and clopidogrel therapy.
- To address specific controversies including dosing, duration, combination therapy, and response variability.
- To provide clarity on the established benefits and unresolved issues in antiplatelet therapy.
Main Methods:
- Literature review of evidence-based treatment guidelines.
- Analysis of studies addressing dosing, duration, and combination therapy.
- Discussion of research on antiplatelet therapy response variability.
Main Results:
- Aspirin and clopidogrel demonstrate robust safety and efficacy profiles for atherothrombosis prevention.
- Significant debate persists regarding optimal dosing, treatment duration, and combination therapy strategies.
- Variability in patient response to antiplatelet therapy is a key area of ongoing research and clinical concern.
Conclusions:
- Antiplatelet therapy with aspirin and/or clopidogrel is an essential tool for managing atherothrombotic risk.
- Despite existing controversies, these agents remain proven and effective in specific clinical settings.
- Further research is needed to optimize antiplatelet therapy and address individual patient response variability.
Abstract:
Because of the central role of platelets in mediating ischemic events, antiplatelet agents are critical components of atherothrombosis prevention. Given their robust safety and efficacy profiles, aspirin and clopidogrel are consistently recommended by evidence-based treatment guidelines. Despite these recommendations, controversies surrounding the appropriate application of aspirin and clopidogrel remain. Questions of appropriate dosing, length of therapy, and use of combination therapy are most pressing, and considerable debate exists regarding the variability of response to antiplatelet therapy, including the definition, measurement, and clinical relevance of responsiveness. This review discusses the facts and controversies surrounding the use of aspirin and clopidogrel. Overall, despite the existing controversies, antiplatelet therapy with aspirin and/or clopidogrel remains a proven and essential therapeutic tool for safe and effective management of atherothrombotic risk in specific clinical settings.
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