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Impact of renal function on clopidogrel-induced antiplatelet effects in coronary artery disease patients without diabetes mellitus.
MedLine Citation:
PMID:  23143668     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Diabetes mellitus (DM) is the most important predictor of chronic kidney disease (CKD), and pharmacodynamic (PD) studies have shown that DM patients with impaired renal function are characterized by reduced clopidogrel response. However, post-hoc PD studies conducted in unselected cohorts, composed of both DM and non-DM patients, have reached controversial findings on the effects of CKD on clopidogrel response, likely attributed to patient heterogeneity. The impact of renal function on clopidogrel response in non-DM patients remains unexplored and represented the aim of this prospective investigation. We conducted a prospective PD investigation in non-DM patients with and without CKD defined as an estimated glomerular filtration rate (eGFR) below or above 60 mL/min, respectively. All patients had known coronary artery disease and were on maintenance aspirin therapy. PD assessments were assessed at baseline and 2 and 24 h after a 600 mg loading dose of clopidogrel. PD assays included light transmission aggregometry (LTA) using 5 and 20 μmol ADP with and without PGE1 and flow cytometric assessment of the phosphorylation status of the vasodilator-stimulated phosphoprotein (VASP) to determine the platelet reactivity index. A total of 60 patients were studied (n = 30 eGFR ≥60 mL/min; n = 30 eGFR <60 mL/min). At baseline there were no differences between groups. Following clopidogrel loading dose administration, levels of on-treatment platelet reactivity were similar between groups at 2 and 24 h as measured with LTA and VASP. Accordingly, there were no differences in rates of high on-treatment platelet reactivity between groups. In non-DM patients with CAD, the presence of impaired renal function is not associated with differences in clopidogrel-induced antiplatelet effects compared with patients with preserved renal function.
Authors:
Antonio Tello-Montoliu; Jose Luis Ferreiro; Murali K Kodali; Masafumi Ueno; Salvatore D Tomasello; Fabiana Rollini; Davide Capodanno; Andrew Darlington; Ronakkumar Patel; Bhaloo Desai; Luis A Guzman; Theodore A Bass; Dominick J Angiolillo
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-11
Journal Detail:
Title:  Journal of thrombosis and thrombolysis     Volume:  -     ISSN:  1573-742X     ISO Abbreviation:  J. Thromb. Thrombolysis     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9502018     Medline TA:  J Thromb Thrombolysis     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
University of Florida College of Medicine-Jacksonville, 655 West 8th Street, Jacksonville, FL, 32209, USA.
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