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The pharmacokinetic properties of piperaquine were investigated in 12 pregnant and 12 well-matched, non-pregnant women receiving a three-day oral fixed dose combination regimen of dihydroartemisinin and piperaquine for treatment of uncomplicated Plasmodium falciparum at New Halfa Hospital in eastern Sudan. Frequent venous plasma samples were drawn from the patients over a 63-day period and a complete concentration-time profile was collected for 7 pregnant and 11 non-pregnant patients. Piperaquine was quantified using a liquid chromatography-mass spectrometry/mass spectrometry method. Pregnant women had a significantly higher total drug exposure (median area under the curve [range] = 1,770 [1,200-5,600] hr × ng/mL versus 858 [325-2,370] hr × ng/mL; P = 0.018) and longer time to maximal concentration (4.00 [1.50-4.03] hr versus 1.50 [0.500-8.00] hr; P = 0.02) after the first dose compared with non-pregnant women. There was no other significant difference observed in piperaquine pharmacokinetics between pregnant and non-pregnant women, including no difference in total drug exposure or maximum concentration. The overall pharmacokinetic properties of piperaquine in this study were consistent with previously published reports in non-pregnant patients.

Original publication

DOI

10.4269/ajtmh.2012.11-0410

Type

Journal article

Journal

Am J Trop Med Hyg

Publication Date

07/2012

Volume

87

Pages

35 - 40

Keywords

Adult, Antimalarials, Area Under Curve, Chromatography, Liquid, Female, Humans, Malaria, Falciparum, Mass Spectrometry, Middle Aged, Pregnancy, Pregnancy Complications, Parasitic, Quinolines, Sudan, Treatment Outcome