期刊
JOURNAL OF INTERNAL MEDICINE
卷 266, 期 5, 页码 457-466出版社
WILEY
DOI: 10.1111/j.1365-2796.2009.02119.x
关键词
clopidogrel; CYP3A4; drug interaction; platelet function; statins
资金
- AstraZeneca
- Swedish Heart-Lung Foundation
- Swedish Science Council/Medicine
Objectives. Possible interactions between clopidogrel and atorvastatin, simvastatin or rosuvastatin (a 'non-CYP3A4' metabolized statin) were investigated in a randomized prospective study using sensitive and specific ex vivo platelet function tests. Methods. Patients with coronary artery disease participating in a double-blind study comparing lipid-lowering effects of atorvastatin (20-80 mg OD; n = 22) and rosuvastatin (10-40 mg OD; n = 24) were studied before and after 2 weeks treatment with clopidogrel 75 mg OD after completed statin dose titration. In addition, 23 patients were randomized to open-label simvastatin 40 mg OD. Results. Clopidogrel inhibited 10 mu mol L-1 ADP-induced platelet aggregation by 40 +/- 27%, 57 +/- 28% and 51 +/- 29%, respectively, in patients on rosuvastatin, atorvastatin and simvastatin treatment. The other platelet tests yielded similar results. No dose-dependent effects of rosuvastatin or atorvastatin co-treatment on clopidogrel efficacy were observed. Conclusions. Treatment with CYP3A4 metabolized statins, atorvastatin or simvastatin, did not attenuate the platelet inhibitory effect of clopidogrel maintenance treatment compared with the non-CYP3A4 metabolized, rosuvastatin.
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