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Characterizing Modulators of Protease-Activated Receptors with a Calcium Mobilization Assay Using a Plate Reader
Published on: May 24, 2024
Progress in the field of GPIIb/IIIa antagonists
Julien Hanson1, Xavier de Leval, Jean-Louis David
1Natural and Synthetic Drugs Research Centre, Department of Medicinal Chemistry, University of Liège, 1, av. de l'Hôpital, B36 Sart-Tilman, B-4000 Liège, Belgium.
Insights
Platelet aggregation inhibitors, like glycoprotein IIb/IIIa antagonists, are crucial for cardiovascular disease treatment. This review details current and emerging drugs targeting this pathway.
Area of Science:
- Cardiovascular Pharmacology
- Thrombosis Research
- Drug Development
Background:
- Platelet aggregation is central to thrombotic cardiovascular diseases like myocardial infarction and stroke.
- Inhibition of platelet aggregation is a key therapeutic strategy for preventing these conditions.
- The glycoprotein IIb/IIIa receptor is a critical target for antiplatelet agents.
Purpose of the Study:
- To review the chemical, pharmacological, and clinical profiles of existing and novel glycoprotein IIb/IIIa antagonists.
- To discuss the development of oral agents for cardiovascular disease prevention and treatment.
- To highlight the ongoing research in glycoprotein IIb/IIIa antagonism.
Main Methods:
- Literature review of existing and preclinical/clinical stage glycoprotein IIb/IIIa antagonists.
- Analysis of chemical structures, pharmacological mechanisms, and clinical trial outcomes.
- Synthesis of information on marketed intravenous agents and investigational oral compounds.
Main Results:
- Three intravenous glycoprotein IIb/IIIa antagonists (Abciximab, Eptifibatide, Tirofiban) are approved for specific cardiovascular interventions.
- Early oral glycoprotein IIb/IIIa antagonists showed limited clinical success.
- Numerous new orally active compounds are in development for cardiovascular indications.
Conclusions:
- Glycoprotein IIb/IIIa antagonists remain a significant focus in cardiovascular drug development.
- Despite past challenges, the pursuit of effective oral agents continues due to their therapeutic potential.
- Further research into novel orally active compounds is essential for improving cardiovascular disease management.
Abstract:
Platelet aggregation plays an important role in pathological situations such as myocardial infarction, unstable angina, peripheral artery disease, and stroke. Thus, pharmacological agents that specifically inhibit platelet aggregation are of great interest in the treatment and prevention of these cardiovascular diseases. Since binding of activated glycoprotein IIb/IIIa complex, a platelet surface integrin, to fibrinogen is the final step leading to platelet aggregation regardless of the initial stimulus, many researches have focused on the development of drugs that could antagonize this integrin. Three intravenous glycoprotein IIb/IIIa antagonists are currently marketed for the prevention of myocardial infarction in patients undergoing percutaneous intervention: Abciximab, Eptifibatide and Tirofiban. To further test the clinical efficacy of these agents, oral glycoprotein IIb/IIIa antagonists have been developed but only led to disappointing clinical results. Nevertheless, due to recognized usefulness of oral agents for the prevention and treatment of cardiovascular diseases, a great number of new orally active compounds are under clinical or preclinical evaluation. The aim of this review is to describe the chemical, pharmacological and clinical properties of existing and forthcoming glycoprotein IIb/IIIa antagonists.
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