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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/26203
Title: Effects of artesunate-mefloquine combination on incidence of Plasmodium falciparum malaria and mefloquine resistance in western Thailand: A prospective study
Authors: F. Nosten
M. Van Vugt
R. Price
C. Luxemburger
K. L. Thway
A. Brockman
R. McGready
F. Ter Kuile
S. Looareesuwan
N. J. White
Shoklo Malaria Research Unit
Mahidol University
Academic Medical Centre, University of Amsterdam
John Radcliffe Hospital
Centers for Disease Control and Prevention
Keywords: Medicine
Issue Date: 22-Jul-2000
Citation: Lancet. Vol.356, No.9226 (2000), 297-302
Abstract: Background. Worsening drug resistance in Plasmodium falciparum malaria is a major threat to health in tropical countries. We did a prospective study of malaria incidence and treatment in an area of highly multidrug-resistant P falciparum malaria. Methods. We assessed incidence of P falciparum malaria and the in-vivo responses to mefloquine treatment over 13 years in two large camps for displaced Karen people on the northwest border of Thailand. During this time, the standard mefloquine dose was first increased, and then combined artesunate and mefloquine was introduced as first-line treatment for uncomplicated P falciparum malaria. Findings. Early detection and treatment controlled P falciparum malaria initially while mefloquine was effective (cure rate with mefloquine [15 mg/kg] and sulphadoxine-pyrimethamine in 1985, 98% [95% CI 97-100]), but as mefloquine resistance developed. the cure rate fell (71% [67-77] in 1990). A similar pattern was seen for high-dose (25 mg/kg) mefloquine monotherapy from 1990-94. Since the general deployment of the artesunate-mefloquine combination in 1994, the cure rate increased again to almost 100% from 1998 onwards, and there has been a sustained decline in the incidence of P falciparum malaria in the study area. In-vitro susceptibility of P falciparum to mefloquine has improved significantly (p = 0.003). Interpretation. In this area of low malaria transmission, early diagnosis and treatment with combined artesunate and mefloquine has reduced the incidence of P falciparum malaria and halted the progression of mefloquine resistance. We recommend that antimalarial drugs should be combined with artemisinin or a derivative to protect them against resistance.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0034702506&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/26203
ISSN: 01406736
Appears in Collections:Scopus 1991-2000

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