Evaluation of Rosuvastatin as an Organic Anion Transporting Polypeptide (OATP) Probe Substrate: In Vitro Transport and In Vivo Disposition in Cynomolgus Monkeys
Organic anion transporting polypeptides (OATPs) mediate hepatic drug uptake and serve as the loci of drug–drug interactions (DDIs). Consequently, there is a major need to develop animal models and refine in vitro–in vivo extrapolations. Therefore, the in vivo disposition of a model OATP substrate, [...
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Published in | The Journal of pharmacology and experimental therapeutics Vol. 353; no. 2; pp. 380 - 391 |
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Main Authors | , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
Elsevier Inc
01.05.2015
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Subjects | |
Online Access | Get full text |
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Summary: | Organic anion transporting polypeptides (OATPs) mediate hepatic drug uptake and serve as the loci of drug–drug interactions (DDIs). Consequently, there is a major need to develop animal models and refine in vitro–in vivo extrapolations. Therefore, the in vivo disposition of a model OATP substrate, [3H]rosuvastatin (RSV), was studied in the cynomolgus monkey and reported for the first time. After monkeys had received a 3-mg/kg oral dose, mass balance was achieved after bile duct cannulation (mean total recovery of radioactivity of 103.6%). Forty-two percent of the RSV dose was recovered in urine and bile, and the elimination pathways were similar to those reported for human subjects; 61.7%, 39.0%, and 2.9% of the dose was recovered in the feces, bile, and urine, respectively. The high levels of unchanged RSV recovered in urine and bile (26% of the dose) and the relatively low levels of metabolites observed indicated that RSV was eliminated largely by excretion. Also, for the first time, the in vitro inhibitory potential of cyclosporin A (CsA) toward cynomolgus monkey OATPs and sodium-taurocholate cotransporting polypeptide was studied in vitro (primary hepatocytes and transporter-transfected cells). It is concluded that one can study the CsA-RSV DDI in the cynomolgus monkey. For example, the in vitro IC50 values were within 2-fold (monkey versus human), and the increase (versus vehicle control) in the RSV AUC0–inf (6.3-fold) and Cmax (10.2-fold) with CsA (100 mg/kg) was similar to that reported for humans. The results further support the use of the cynomolgus monkey as a model to assess interactions involving OATP inhibition. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0022-3565 1521-0103 1521-0103 |
DOI: | 10.1124/jpet.114.221804 |