title: Pharmacokinetic and pharmacodynamic interactions between the immunosuppressant sirolimus and the lipid-lowering drug ezetimibe in healthy volunteers.
abstract: Organ transplant recipients who have dyslipidemia related to immunosuppression may benefit from cholesterol-lowering therapy with ezetimibe, a substrate of ABCB1, ABCC2, and OATP1B1. Adverse pharmacokinetic interactions are hypothesized with sirolimus, which is a substrate of OATP1B1 and OATP1B3 and an inhibitor of ABCB1, OATP1B1, and OATP1B3 but not of ABCC2. However, competition between sirolimus and ezetimibe for ABCB1 and OATP1B1 is not of major clinical relevance, as confirmed in our randomized, controlled, single-dose study in healthy subjects.
authors.affiliation: Department of Clinical Pharmacology, University of Greifswald, Greifswald, Germany. stefan.oswald@uni-greifswald.de
authors.forename: S
authors.initials: S
authors.lastname: Oswald
authors.forename: A
authors.initials: A
authors.lastname: Nassif
authors.forename: C
authors.initials: C
authors.lastname: Modess
authors.forename: M
authors.initials: M
authors.lastname: Keiser
authors.forename: U
authors.initials: U
authors.lastname: Hanke
authors.forename: A
authors.initials: A
authors.lastname: Engel
authors.forename: D
authors.initials: D
authors.lastname: Lütjohann
authors.forename: W
authors.initials: W
authors.lastname: Weitschies
authors.forename: W
authors.initials: W
authors.lastname: Siegmund
mesh_terms: D000328:Adult; D000818:Animals; D000924:Anticholesteremic Agents / Q000008:administration & dosage / Q000493:pharmacokinetics* / Q000494:pharmacology; D001384:Azetidines / Q000008:administration & dosage / Q000493:pharmacokinetics* / Q000494:pharmacology; D002460:Cell Line; D002478:Cells, Cultured; D018592:Cross-Over Studies; D004285:Dogs; D004305:Dose-Response Relationship, Drug; D000069438:Ezetimibe; D005260:Female; D006801:Humans; D007166:Immunosuppressive Agents / Q000008:administration & dosage / Q000493:pharmacokinetics* / Q000494:pharmacology; D008297:Male; D000089762:Multidrug Resistance-Associated Protein 2; D027361:Organic Anion Transporters / Q000378:metabolism; D020123:Sirolimus / Q000008:administration & dosage / Q000493:pharmacokinetics* / Q000494:pharmacology; D014162:Transfection; D055815:Young Adult
chemical_list: C000715087:ABCC2 protein, human; D000924:Anticholesteremic Agents; D001384:Azetidines; D007166:Immunosuppressive Agents; D000089762:Multidrug Resistance-Associated Protein 2; D027361:Organic Anion Transporters; D000069438:Ezetimibe; D020123:Sirolimus