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Bedside Testing of CYP2C19 Gene for Treatment of Patients With PCI With Antiplatelet Therapy

Coronary Artery Disease Clinical Trial

Official title:
Bedside Testing of the CYP2C19 Gene to Asses Effectiveness of Clopidogrel in Coronary Artery Disease Patients Treated With Percutaneous Coronary Intervention : Individualized Antiplatelet Drugs Treatment to Improve Prognosis

Clinical Trial Summary

Clopidogrel is crucial as antiplatelet treatment in patients undergoing percutaneous coronary intervention (PCI) with stent implantation and during one year after PCI, to prevent atherothrombotic complications. However, clopidogrel is ineffective in certain patients due to genetic mutation in CYP2C19 gene a specific enzyme in the liver required for metabolism of clopidogrel. Therefore, the purpose of this study is to test these patients genetically at bedside and prescribe an alternative drug such as Ticagrelor (90 mg twice daily) or prasugrel ( 10mg once daily or 5mg once daily if the patient older than 75 years or a body weight < 60kg) if they are carriers of the allele 2 or 3 of the mutated gene.

Clinical Trial Description

Clopidogrel is crucial as antiplatelet treatment in patients undergoing percutaneous coronary intervention (PCI) with stent implantation and during one year after PCI, to prevent atherothrombotic complications. Clopidogrel is converted into its active metabolite by Cytochrome P2C19 (CYP2C19). However 30 % of the Saudi population is carrier of the non functional CYP2C19*2 or *3 alleles having an impaired CYP2C19 capacity, resulting in decreased effectiveness of Clopidogrel. These patients have a 42% higher risk for major cardiovascular events (MACE) compared to non carriers. Further 50 % of the MACE occurs in the first 48 hours. Therefore Ticagrelor (90 mg twice daily) or prasugrel ( 10mg once daily or 5mg once daily if the patient older than 75 years or a body weight < 60kg) whose actions are not dependent on conversion by CYP2C19 may be an alternative only in carriers of the non functional CYP2C19*2 or *3 alleles. This might be cost effective and prevent patients form MACE. Therefore the objective of this study is to assess the efficacy, complication free survival, safety and cost-effectiveness of the CYP2C19 genotype guided antiplatelet treatment strategy, using clopidogrel or prasugrel (or Ticlid). All participants will be followed for one year using follow up questionnaires. ;

Study Design

Allocation: Non-Randomized, Endpoint Classification: Safety Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01823185
Study type Interventional
Source Dammam University
Contact Amein K Al-Ali, PhD
Phone +966505821693
Email ameinomran@hotmail.com
Status Recruiting
Phase Phase 4
Start date March 2013
Completion date March 2016
View Details
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