Abstract
To investigate the potential involvement of the hepatic ATP-binding cassette transporters MRP2 and MDR1 in the disposition of lumefantrine (LUM) among patients with uncomplicated Plasmodium falciparum malaria. The tag SNPs MDR1/ABCB1 C3435T and MRP2/ABCC2 C1515Y were determined in two artemether-LUM clinical trials, including a pharmacokinetic/pharmacodynamic study focused on the treatment phase (72 h), and an efficacy trial where day 7 (D7) LUM levels were measured. The 1515YY genotype was significantly associated with higher (p < 0.01) LUM D7 concentrations (median 1.42 μM), compared with 0.77 μM for 1515CY and 0.59 μM for 1515CC. No significant influence of the MDR1/ABCB1 C3435T was found. LUM body disposition may be influenced by MRP2/ABCC2 genotype.
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