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Artemether, artesunate, praziquantel and tribendimidine administered singly at different dosages against Clonorchis sinensis : a comparative in vivo study

Xiao, S. H. and Jian, X. and Tanner, M. and Yong-Nian, Z. and Keiser, J. and Utzinger, J. and Hui-Qiang, Q.. (2008) Artemether, artesunate, praziquantel and tribendimidine administered singly at different dosages against Clonorchis sinensis : a comparative in vivo study. Acta tropica, 106 (1). pp. 54-59.

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Official URL: http://edoc.unibas.ch/dok/A6003481

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Abstract

We comparatively assessed the in vivo efficacy of artemether, artesunate, praziquantel and tribendimidine against different stages of Clonorchis sinensis. Rats were infected with 40-50 C. sinensis metacercariae, and drugs were administered singly by the oral route at different dosages. Rats were dissected 2-4 weeks post-treatment and C. sinensis trematodes were removed from the liver and bile ducts and counted. We used a negative binomial regression model to test the effect of drug and dosage in terms of worm burden reduction. Single 150mg/kg oral doses of artesunate, artemether, tribendimidine and praziquantel, administered to rats infected with adult C. sinensis, resulted in mean worm burden reductions of 100, 100, 89.5 and 80.7%, respectively (all P>0.001). Halving the dose to 75mg/kg still resulted in highly significant worm burden reductions for artesunate, artemether and tribendimidine (71.4-100%), but not for praziquantel (20.7%). In the juvenile infection model, a single 150mg/kg oral dose of tribendimidine and praziquantel resulted in mean worm burden reductions of 99.1 and 90.0%, respectively, whereas considerably lower reductions were observed for artemether (59.2%) and artesunate (57.6%) when used at the same single dose. The in vivo results presented here with the artemisinins and tribendimidine provide further data for clinical investigations to assess the safety and efficacy of these drugs in clonorchiasis patients.
Faculties and Departments:03 Faculty of Medicine > Bereich Medizinische Fächer (Klinik) > Klinische Pharmakologie
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Medizinische Fächer (Klinik) > Klinische Pharmakologie
UniBasel Contributors:Keiser, Jennifer
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Elsevier Science Publ.
ISSN:0001-706X
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:25 Oct 2017 07:17
Deposited On:07 Dec 2012 12:59

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