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Influence of Drug Transporter Expression on the Pharmacokinetics of the HIV Protease Inhibitor Kaletra

Healthy Clinical Trial

Official title:
Influence of Drug Transporter Expression on the Pharmacokinetics of the HIV Protease Inhibitor Kaletra (Lopinavir/Ritonavir) and on the Concentration Relations Between Plasma, Blood Cells, Saliva and Urine

Clinical Trial Summary

The aim of this study is to determine the pharmacokinetics of Kaletra™ (HIV protease inhibitors lopinavir and ritonavir) in different body compartments and to assess the role of four different drug transporters (MDR, MRP1, MRP2 and BCRP) in the tissue distribution of the two protease inhibitors. The latter will be studied by comparing intracellular concentrations of peripheral blood mononuclear cells (PBMCs) with total and free plasma concentrations in healthy individuals. These effects will be studied after single dose (day 1), during steady state (day 3), and during chronic treatment (day 14).

Clinical Trial Description

Objective:

Measurement of AUC, Cmax, tmax, t1/2 and clearance (Cl) of the protease inhibitor Kaletra™ (lopinavir and ritonavir) each in the plasma of healthy individuals

- establish free and total plasma - blood cell concentration-relationship

- establish free and total plasma - saliva concentration-relationship

- establish blood cell concentration - drug transporter expression-relationship ;

Study Design

Time Perspective: Prospective

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00176033
Study type Observational
Source Heidelberg University
Contact
Status Completed
Phase Phase 1
Start date January 2005
View Details
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