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Clinical Trial Summary

The purpose of this study is to understand the effects of everolimus on tacrolimus pharmacokinetics (pk) in patients receiving de novo kidney transplants.


Clinical Trial Description

Multidrug immunosuppression regimens have synergistic effects which allow the use of lower doses of individual agents. These regimens generally include calcineurin inhibitors (CNIs: cyclosporine or tacrolimus), mammalian target of rapamycin (mTOR) inhibitors (everolimus or sirolimus), and corticosteroids. CNIs and mTOR inhibitors are substrates for cytochrome P450 3A4 (CYP3A4) and P-glycoprotein (P-gp); in addition, cyclosporine is a inhibitor of CYP3A4 and P-gp. Therefore, concomitant administration of those drugs may alter their serum levels.

It is remained to be evaluated whether the pharmacokinetics or clinical efficacy of tacrolimus will be affected when the regimens contain everolimus in clinical practice and the effect of ABCB1、CYP3A4、CYP3A5、POR genetic polymorphism on the two Drugs. Mycophenolate mofetil (MMF) has no effect on pharmacokinetics of tacrolimus; therefore, MMF is used as a control to understand the effects of everolimus on pharmacokinetics of tacrolimus in patients receiving de novo kidney transplants. The effect of ABCB1、CYP3A4、CYP3A5、POR genetic polymorphism on the two Drugs was also assessed. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT02077556
Study type Interventional
Source National Taiwan University Hospital
Contact
Status Completed
Phase Phase 4
Start date April 2014
Completion date January 15, 2019

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