The efficacy and tolerability of artemisinin-piperaquine (Artequick®) versus artesunate-amodiaquine (Coarsucam™) for the treatment of uncomplicated Plasmodium falciparum malaria in south-central Vietnam

Malaria Journal

Research

Michael D Edstein¹  Marina Chavchich¹  G Dennis Shanks¹  Trieu Nguyen Trung²  Huynh Hong Quang²  Nguyen Chinh Phong³  Bui Dai³  Nguyen Xuan Thanh³ 

[1] Australian Army Malaria Institute, Enoggera, 4051, Brisbane, QLD, Australia;Institute of Malariology, Parasitology and Entomology, Qui Nhon, Vietnam;Military Institute of Hygiene and Epidemiology, Hanoi, Vietnam;

关键词: Malaria;    Plasmodium falciparum;    Artemisinin;    Piperaquine;    Artesunate;    Amodiaquine;   

DOI  :  10.1186/1475-2875-11-217

 received in 2012-05-01, accepted in 2012-06-28,  发布年份 2012

来源: Springer

【 摘 要 】

BackgroundIn Vietnam, the artemisinin-based combination therapy (ACT) of dihydroartemisinin-piperaquine is currently used for first-line treatment of uncomplicated Plasmodium falciparum malaria. However, limited efficacy and tolerability data are available on alternative forms of ACT in Vietnam in case there is a reduction in the susceptibility of dihydroartemisinin-piperaquine. A study was conducted to compare the efficacy and tolerability of two fixed-dose formulations of ACT, artemisinin–piperaquine (Artequick®, ARPQ) and artesunate-amodiaquine (Coarsucam™, ASAQ) for the treatment of P. falciparum malaria in south-central Vietnam.MethodsA randomized, open-label trial was conducted comparing the efficacy of a two-day regimen of ARPQ (~2.8 mg/kg artemisinin plus ~17.1 mg/kg of piperaquine per day) and a three-day regimen of ASAQ (~4.7 mg/kg of artesunate plus ~12.6 mg/kg of amodiaquine per day) for the treatment of children and adults with uncomplicated falciparum malaria. Primary efficacy endpoint was day 42, PCR-corrected, parasitological cure rate. Secondary endpoints were parasite and fever clearance times and tolerability.ResultsOf 128 patients enrolled, 63 were administered ARPQ and 65 ASAQ. Of the patients who completed the 42 days follow-up period or had a recurrence of malaria, 55 were on ARPQ (30 children, 25 adults) and 59 were on ASAQ (31 children, 28 adults). Recrudescent parasitaemia was PCR-confirmed for one patient in each treatment group, with cure rates at day 42 of 98% (95% CI: 88–100) for both forms of ACT. The median parasite clearance time was significantly slower in the ARPQ group compared with the ASAQ group (48 h vs. 36 h, P<0.001) and fever clearance times were shorter in the ASAQ group (12 h vs. 24 h, P = 0.07). The two forms of ACT were well tolerated with no serious adverse events.ConclusionBoth forms of ACT were highly efficacious in the treatment of uncomplicated P. falciparum malaria. Although the two-day course of ARPQ was equally as effective as the three-day course of ASAQ, parasite and fever clearance times were shorter with ASAQ. Further studies are warranted in different regions of Vietnam to determine the nationwide efficacy of ASAQ.Trial registrationAustralian New Zealand Clinical Trials Registry Number, ACTRN12609000816257

【 授权许可】

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© Thanh et al.; licensee BioMed Central Ltd. 2012. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.