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Title

Intestinal permeability and P-glycoprotein-mediated efflux transport of ticagrelor in Caco-2 monolayer cells

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Published in Fundamental and Clinical Pharmacology. 2016, vol. 30, no. 6, p. 577-584
Abstract Ticagrelor is the unique reversible oral antiplatelet drug commercialized today. During this study, the intestinal permeability of ticagrelor and its potential P-glycoprotein (P-gp)-mediated active transport were assessed. To this end, bidirectional transport of ticagrelor was performed across Caco-2 (human epithelial colorectal adenocarcinoma) monolayer model in the presence and absence of potent P-gp inhibitor valspodar. Ticagrelor presented an apical-basolateral apparent permeability coefficient (Papp ) of 6.0 × 10(-6) cm/s. On the other hand, mean efflux ratio (ER) of 2.71 was observed for ticagrelor describing a higher efflux permeability compared to the influx component. Valspodar showed a significant inhibitory effect on the efflux of ticagrelor suggesting involvement of P-gp in its oral disposition. Co-incubation of the P-gp inhibitor decreased the efflux Papp of ticagrelor from 1.60 × 10(-5) to 1.13 × 10(-5) cm/s and decreased its ER by 70%. Results suggest a modest active transport of ticagrelor by P-gp across the Caco-2 cell monolayer. The co-administration of ticagrelor with a P-gp inhibitor seems altogether unlikely to have an extended impact on pharmacokinetics of ticagrelor and cause bleeding events in patients.
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PMID: 27416295
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Research group Groupe Desmeules Jules (pharmacologie/toxicologie) (567)
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MARSOUSI, Niloufar et al. Intestinal permeability and P-glycoprotein-mediated efflux transport of ticagrelor in Caco-2 monolayer cells. In: Fundamental and Clinical Pharmacology, 2016, vol. 30, n° 6, p. 577-584. https://archive-ouverte.unige.ch/unige:86301

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Deposited on : 2016-08-24

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