Triple therapy with aspirin, prasugrel, and vitamin K antagonists in patients with drug-eluting stent implantation and an indication for oral anticoagulation.

Sarafoff, Nikolaus; Martischnig, Amadea; Wealer, Jill; Mayer, Katharina; Mehilli, Julinda; Sibbing, Dirk; Kastrati, Adnan

doi:10.1016/j.jacc.2013.02.036

2013

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Document type:: Comparative Study; Journal Article
Author(s):: Sarafoff, Nikolaus; Martischnig, Amadea; Wealer, Jill; Mayer, Katharina; Mehilli, Julinda; Sibbing, Dirk; Kastrati, Adnan
Title:: Triple therapy with aspirin, prasugrel, and vitamin K antagonists in patients with drug-eluting stent implantation and an indication for oral anticoagulation.
Abstract:: This study sought to evaluate whether prasugrel may serve as an alternative to clopidogrel in patients with triple therapy.Approximately 10% of patients who receive dual antiplatelet therapy after percutaneous coronary intervention have an indication for oral anticoagulation and are thus treated with triple therapy. The standard adenosine diphosphate receptor blocker in this setting is clopidogrel. Data regarding prasugrel as part of triple therapy are not available.We analyzed a consecutive series of 377 patients who underwent drug-eluting stent implantation and had an indication for oral anticoagulation between February 2009 and December 2011 and were treated with a 6-month regimen of aspirin and oral anticoagulation with either prasugrel or clopidogrel. The primary endpoint was a composite of Thrombolysis In Myocardial Infarction (TIMI) major and minor bleeding at 6 months. The secondary endpoint was a composite of death, myocardial infarction, ischemic stroke, or definite stent thrombosis.Twenty-one patients (5.6%) received prasugrel instead of clopidogrel. These patients had a higher-risk profile at baseline, and the majority had high platelet reactivity to clopidogrel. TIMI major and minor bleeding occurred significantly more often in the prasugrel compared with the clopidogrel group (6 [28.6%) vs. 24 [6.7%]; unadjusted hazard ratio (HR): 4.6, 95% confidence interval [CI]: 1.9 to 11.4], p < 0.001; adjusted HR: 3.2, 95% CI: 1.1 to 9.1], p = 0.03). There was no significant difference regarding the combined ischemic secondary endpoint (2 [9.5%] vs. 25 [7.0%]; unadjusted HR: 1.4, 95% CI: 0.3 to 6.1], p = 0.61).These findings suggest that substitution of prasugrel for clopidogrel in patients needing triple therapy increases the risk of bleeding. However, specific randomized trials are needed to define the role of newer adenosine diphosphate receptor antagonists in this setting.
Journal title abbreviation:: J Am Coll Cardiol
Year:: 2013
Journal volume:: 61
Journal issue:: 20
Pages contribution:: 2060-6
Language:: eng
Fulltext / DOI:: doi:10.1016/j.jacc.2013.02.036
Pubmed ID:: http://view.ncbi.nlm.nih.gov/pubmed/23524219
Print-ISSN:: 0735-1097
TUM Institution:: Klinik für Herz- und Kreislauferkrankungen im Erwachsenenalter (Prof. Schunkert)
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mediaTUM Gesamtbestand Einrichtungen Schools TUM School of Medicine and Health Departments Clinical Medicine Lehr- und Forschungskooperationen mit den Kliniken und Instituten am Deutschen Herzzentrum Klinik für Herz- und Kreislauferkrankungen im Erwachsenenalter (DHM) (Prof. Schunkert)2013