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  • Title: Clopidogrel: new preparation. An alternative to aspirin.
    Journal: Prescrire Int; 1999 Dec; 8(44):163-4. PubMed ID: 11503810.
    Abstract:
    (1) Clopidogrel, an antiplatelet drug chemically similar to ticlopidine, is marketed in France for secondary prevention of thrombotic complications in patients with a history of myocardial infarction, ischaemic stroke or peripheral arterial disease. (2) Marketing authorisation was based mainly on the CAPRIE trial, a study that involved 19,815 patients. In this trial of secondary cardiovascular prevention, clopidogrel was slightly more effective than aspirin (325 mg/day) according to a statistical analysis of a combined end point (ischaemic stroke, or myocardial infarction, or death of vascular causes). The difference was more marked in the subgroup of patients with obstructive arterial disease of the lower limbs. (3) Clopidogrel was well tolerated in this trial. The only adverse effects more frequent on clopidogrel than on aspirin were rash and diarrhoea. (4) Clopidogrel showed no haematological toxicity, an adverse effect that restricts the use of ticlopidine. (5) The lack of long-term follow-up in real clinical settings prevents any meaningful estimation of the safety profile or of the risk of drug interactions.
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