A double-blind, randomized, multicenter phase 2 study of prasugrel versus placebo in adult patients with sickle cell diseaseReportar como inadecuado

A double-blind, randomized, multicenter phase 2 study of prasugrel versus placebo in adult patients with sickle cell disease - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Journal of Hematology and Oncology

, 6:17

First Online: 17 February 2013Received: 19 December 2012Accepted: 05 February 2013DOI: 10.1186-1756-8722-6-17

Cite this article as: Wun, T., Soulieres, D., Frelinger, A.L. et al. J Hematol Oncol 2013 6: 17. doi:10.1186-1756-8722-6-17


BackgroundPlatelet activation has been implicated in the pathogenesis of sickle cell disease SCD suggesting antiplatelet agents may be therapeutic. To evaluate the safety of prasugrel, a thienopyridine antiplatelet agent, in adult patients with SCD, we conducted a double-blind, randomized, placebo-controlled study.

MethodsThe primary endpoint, safety, was measured by hemorrhagic events requiring medical intervention. Patients were randomized to prasugrel 5 mg daily n = 41 or placebo n = 21 for 30 days. Platelet function by VerifyNow® P2Y12 and vasodilator-stimulated phosphoprotein assays at days 10 and 30 were significantly inhibited in prasugrel- compared with placebo-treated SCD patients.

ResultsThere were no hemorrhagic events requiring medical intervention in either study arm. Mean pain rate percentage of days with pain and intensity in the prasugrel arm were decreased compared with placebo. However, these decreases did not reach statistical significance. Platelet surface P-selectin and plasma soluble P-selectin, biomarkers of in vivo platelet activation, were significantly reduced in SCD patients receiving prasugrel compared with placebo. In sum, prasugrel was well tolerated and not associated with serious hemorrhagic events.

ConclusionsDespite the small size and short duration of this study, there was a decrease in platelet activation biomarkers and a trend toward decreased pain.

KeywordsPrasugrel Sickle cell disease Thienopyridine Platelet function Electronic supplementary materialThe online version of this article doi:10.1186-1756-8722-6-17 contains supplementary material, which is available to authorized users.

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Autor: Ted Wun - Denis Soulieres - Andrew L Frelinger - Lakshmanan Krishnamurti - Enrico M Novelli - Abdullah Kutlar - Kenneth I

Fuente: https://link.springer.com/

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