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Effect of ticagrelor versus prasugrel on platelet reactivity: a meta-analysis

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Background and objective

Whether ticagrelor is superior to prasugrel in inhibiting platelet reactivity (PR) has remained unclear, possibly because different test methods have been used to determine this. Therefore, using a different test method, we performed a meta-analysis comparing the effects of ticagrelor and prasugrel on PR.

Methods and results

PubMed, Embase, Web of Science, and Google Scholar were searched – without language restrictions (last updated on 26 February 2017) – for randomized trials comparing the effects of prasugrel with those of ticagrelor in patients with coronary artery disease. Selected studies were chosen for pooled analysis according to the inclusion and exclusion criteria. Data are presented as mean difference (MD) and 95% confidence interval. For the loading dose, using the VerifyNow-P2Y12 (VN) test, the PR was similar for both the prasugrel and ticagrelor groups [MD=10.80 (−9.81–31.40), P=0.30]. Using the vasodilatorstimulated phosphoprotein test, the PR was also similar for both the ticagrelor and prasugrel groups [MD=−2.87 (−6.35−0.60), P=0.10]. For the maintenance dose, using the VN test, the PR was lower in the ticagrelor group than in the prasugrel group [MD=−43.37 (−60.53 to −26.21), P<0.01]. Finally, using the vasodilator-stimulated phosphoprotein test, the PR was lower in the ticagrelor group than in the prasugrel group [MD=−9.23 (−15.82 to −2.64), P<0.01].

Conclusion

There was no difference between ticagrelor and prasugrel in terms of PR under the loading dose, but ticagrelor had a lower degree of PR under the maintenance dose. The results were not affected by the different PR test methods.
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Keywords: meta-analysis; platelet reactivity; prasugrel; ticagrelor

Document Type: Research Article

Affiliations: The First Affiliated Hospital, and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, China

Publication date: 01 November 2017

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