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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/34157
Title: Open-label crossover study of primaquine and dihydroartemisinin- Piperaquine pharmacokinetics in healthy adult thai subjects
Authors: Borimas Hanboonkunupakarn
Elizabeth A. Ashley
Podjanee Jittamala
Joel Tarning
Sasithon Pukrittayakamee
Warunee Hanpithakpong
Palang Chotsiri
Thanaporn Wattanakul
Salwaluk Panapipat
Sue J. Lee
Nicholas P.J. Day
Nicholas J. White
Mahidol University
Nuffield Department of Clinical Medicine
Keywords: Medicine;Pharmacology, Toxicology and Pharmaceutics
Issue Date: 1-Dec-2014
Citation: Antimicrobial Agents and Chemotherapy. Vol.58, No.12 (2014), 7340-7346
Abstract: © 2014 Hanboonkunupakarn et al. Dihydroartemisinin-piperaquine is an artemisinin-based combination treatment (ACT) recommended by theWHOfor uncomplicated Plasmodium falciparum malaria, and it is being used increasingly for resistant vivax malaria where combination with primaquine is required for radical cure. TheWHOrecently reinforced its recommendations to add a single dose of primaquine to ACTs to reduce P. falciparum transmission in low-transmission settings. The pharmacokinetics of primaquine and dihydro-artemisinin- piperaquine were evaluated in 16 healthy Thai adult volunteers in a randomized crossover study. Volunteers were randomized to two groups of three sequential hospital admissions to receive 30 mg (base) primaquine, 3 tablets of dihydroarte-misinin- piperaquine (120/960 mg), and the drugs together at the same doses. Blood sampling was performed over 3 days following primaquine and 36 days following dihydroartemisinin-piperaquine dosing. Pharmacokinetic assessment was done with a noncompartmental approach. The drugs were well tolerated. There were no statistically significant differences in dihydroartemisinin and piperaquine pharmacokinetics with or without primaquine. Dihydroartemisinin-piperaquine coadministration significantly increased plasma primaquine levels; geometric mean ratios (90% confidence interval [CI]) of primaquine combined versus primaquine alone for maximum concentration (Cmax), area under the concentration-time curve from 0 h to the end of the study (AUC0-last), and area under the concentration-time curve from 0 h to infinity (AUC0-∞) were 148% (117 to 187%), 129% (103 to 163%), and 128% (102 to 161%), respectively. This interaction is similar to that described recently with chloroquine and may result in an enhanced radical curative effect. (This study has been registered at ClinicalTrials.gov under registration no. NCT01525511.)
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84913593970&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/34157
ISSN: 10986596
00664804
Appears in Collections:Scopus 2011-2015

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