Cited by 102Malaria Research and ControlPharmaceutical studies and practicesAntibiotics Pharmacokinetics and Efficacy

Population Pharmacokinetics of Dihydroartemisinin and Piperaquine in Pregnant and Nonpregnant Women with Uncomplicated Malaria

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Tarning, Joel, Rijken, Marcus J., McGready, Rose, Phyo, Aung Pyae, Hanpithakpong, Warunee, Day, Nicholas P. J., White, Nicholas J., Nosten, François +1 more·2012·Antimicrobial Agents and Chemotherapy

Abstract

Pregnant women are particularly vulnerable to malaria. The pharmacokinetic properties of antimalarial drugs are often affected by pregnancy, resulting in lower drug concentrations and a consequently higher risk of treatment failure. The objective of this study was to evaluate the population pharmacokinetic properties of piperaquine and dihydroartemisinin in pregnant and nonpregnant women with uncomplicated malaria. Twenty-four pregnant and 24 matched nonpregnant women on the Thai-Myanmar boarder were treated with a standard fixed oral 3-day treatment, and venous plasma concentrations of both drugs were measured frequently for pharmacokinetic evaluation. Population pharmacokinetics were evaluated with nonlinear mixed-effects modeling. The main pharmacokinetic finding was an unaltered total exposure to piperaquine but reduced exposure to dihydroartemisinin in pregnant compared to nonpregnant women with uncomplicated malaria. Piperaquine was best described by a three-compartment disposition model with a 45% higher elimination clearance and a 47% increase in relative bioavailability in pregnant women compared with nonpregnant women. The resulting net effect of pregnancy was an unaltered total exposure to piperaquine but a shorter terminal elimination half-life. Dihydroartemisinin was best described by a one-compartment disposition model with a 38% lower relative bioavailability in pregnant women than nonpregnant women. The resulting net effect of pregnancy was a decreased total exposure to dihydroartemisinin. The shorter terminal elimination half-life of piperaquine and lower exposure to dihydroartemisinin will shorten the posttreatment prophylactic effect and might affect cure rates. The clinical impact of these pharmacokinetic findings in pregnant women with uncomplicated malaria needs to be evaluated in larger series.

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Crossref · 10.1128/aac.05756-11

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  • Several studies have shown that the kinetics of artemisinins derivatives, most specifically of the active metabolite dihydroartemisinin, is modified during pregnancy.

    “Several studies have shown that the kinetics of artemisinins derivatives, most specifically of the active metabolite dihydroartemisinin, is modified during pregnancy.133–134”

    From Malaria in pregnancy. (2013) · cites this paper as [133]

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Authors
Tarning, J., Rijken, M. J., McGready, R., Phyo, A. P., Hanpithakpong, W., Day, N. P. J., White, N. J., Nosten, F., & Lindegardh, N.
Affiliations
  • Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
  • Shoklo Malaria Research Unit (TH)
  • Mahidol University (TH)
Venue
Antimicrobial Agents and Chemotherapy
Published
2012-04
Volume
56
Issue
4
Pages
1997-2007
ISSN
  • 0066-4804 (ISSN-L)
  • 1098-6596
OpenAlex
W2141478039
Cited by
102
References
63
Citations by year
2026: 3 · 2025: 1 · 2024: 7 · 2023: 5 · 2021: 2 · 2020: 7 · 2019: 8 · 2018: 9 · 2017: 12 · 2016: 7 · 2015: 11 · 2014: 16 · 2013: 6 · 2012: 8
FWCI
12.67
Type
journal article
Language
en
Open access
Locations
  • Antimicrobial Agents and Chemotherapy (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Bill and Melinda Gates Foundation
  • Wellcome Trust (089275, 093956, 093956/Z/10/Z)
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Malaria Research and Control
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Pharmaceutical studies and practices
  • Health Sciences › Medicine › Pharmacology › Antibiotics Pharmacokinetics and Efficacy
Keywords
dihydroartemisinin, piperaquine, population pharmacokinetics, pregnancy, uncomplicated malaria, antimalarial drugs, relative bioavailability, elimination clearance, elimination half-life, one-compartment model, Thai-Myanmar border
MeSH terms
Adolescent, Adult, Antimalarials, Body Weight, Myanmar, Chromatography, High Pressure Liquid, Female, Half-Life, Humans, Malaria, Middle Aged, Piperazines, Population, Predictive Value of Tests, Pregnancy, Quinolines, Software, Thailand, Pregnancy Complications, Parasitic, Nonlinear Dynamics, Area Under Curve, Artemisinins, Tandem Mass Spectrometry, Young Adult

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