Population Pharmacokinetics of Piperaquine after Two Different Treatment Regimens with Dihydroartemisinin-Piperaquine in Patients with Plasmodium falciparum Malaria in Thailand.

Hdl Handle:
http://hdl.handle.net/10144/19920
Title:
Population Pharmacokinetics of Piperaquine after Two Different Treatment Regimens with Dihydroartemisinin-Piperaquine in Patients with Plasmodium falciparum Malaria in Thailand.
Authors:
Tarning, J; Ashley, E A; Lindegardh, N; Stepniewska, K; Phaiphun, L; Day, N P J; McGready, R; Ashton, M; Nosten, F; White, N J
Journal:
Antimicrobial Agents and Chemotherapy
Abstract:
The population pharmacokinetics of piperaquine in adults and children with uncomplicated Plasmodium falciparum malaria treated with two different dosage regimens of dihydroartemisinin-piperaquine were characterized. Piperaquine pharmacokinetics in 98 Burmese and Karen patients aged 3 to 55 years were described by a two-compartment disposition model with first-order absorption and interindividual random variability on all parameters and were similar with the three- and four-dose regimens. Children had a lower body weight-normalized oral clearance than adults, resulting in longer terminal elimination half-lives and higher total exposure to piperaquine (area under the concentration-time curve from 0 to 63 days [AUC(day 0-63)]). However, children had lower plasma concentrations in the therapeutically relevant posttreatment prophylactic period (AUC(day 3-20)) because of smaller body weight-normalized central volumes of distribution and shorter distribution half-lives. Our data lend further support to a simplified once-daily treatment regimen to improve treatment adherence and efficacy and indicate that weight-adjusted piperaquine doses in children may need to be higher than in adults.
Affiliation:
Mahidol - Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, 420/6 Rajvithi Road, Bangkok 10400, Thailand. nickw@tropmedres.ac.
Publisher:
American Society for Microbiology
Issue Date:
Mar-2008
URI:
http://hdl.handle.net/10144/19920
DOI:
10.1128/AAC.00955-07
PubMed ID:
18180343
Language:
en
ISSN:
0066-4804
Appears in Collections:
Malaria

Full metadata record

DC FieldValue Language
dc.contributor.authorTarning, J-
dc.contributor.authorAshley, E A-
dc.contributor.authorLindegardh, N-
dc.contributor.authorStepniewska, K-
dc.contributor.authorPhaiphun, L-
dc.contributor.authorDay, N P J-
dc.contributor.authorMcGready, R-
dc.contributor.authorAshton, M-
dc.contributor.authorNosten, F-
dc.contributor.authorWhite, N J-
dc.date.accessioned2008-03-06T14:40:07Z-
dc.date.available2008-03-06T14:40:07Z-
dc.date.issued2008-03-
dc.identifier.citationPopulation Pharmacokinetics of Piperaquine after Two Different Treatment Regimens with Dihydroartemisinin-Piperaquine in Patients with Plasmodium falciparum Malaria in Thailand. 2008, 52 (3):1052-61 Antimicrob. Agents Chemother.en
dc.identifier.issn0066-4804-
dc.identifier.pmid18180343-
dc.identifier.doi10.1128/AAC.00955-07-
dc.identifier.urihttp://hdl.handle.net/10144/19920-
dc.description.abstractThe population pharmacokinetics of piperaquine in adults and children with uncomplicated Plasmodium falciparum malaria treated with two different dosage regimens of dihydroartemisinin-piperaquine were characterized. Piperaquine pharmacokinetics in 98 Burmese and Karen patients aged 3 to 55 years were described by a two-compartment disposition model with first-order absorption and interindividual random variability on all parameters and were similar with the three- and four-dose regimens. Children had a lower body weight-normalized oral clearance than adults, resulting in longer terminal elimination half-lives and higher total exposure to piperaquine (area under the concentration-time curve from 0 to 63 days [AUC(day 0-63)]). However, children had lower plasma concentrations in the therapeutically relevant posttreatment prophylactic period (AUC(day 3-20)) because of smaller body weight-normalized central volumes of distribution and shorter distribution half-lives. Our data lend further support to a simplified once-daily treatment regimen to improve treatment adherence and efficacy and indicate that weight-adjusted piperaquine doses in children may need to be higher than in adults.en
dc.language.isoenen
dc.publisherAmerican Society for Microbiologyen
dc.rightsArchived with thanks and copyright by the American Society for Microbiologyen
dc.titlePopulation Pharmacokinetics of Piperaquine after Two Different Treatment Regimens with Dihydroartemisinin-Piperaquine in Patients with Plasmodium falciparum Malaria in Thailand.en
dc.contributor.departmentMahidol - Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, 420/6 Rajvithi Road, Bangkok 10400, Thailand. nickw@tropmedres.ac.en
dc.identifier.journalAntimicrobial Agents and Chemotherapyen

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