Abstract
Artemisinin-based combination therapy (ACT) has been the standard treatment for uncomplicated malaria. Although not licensed in Japan, artemether/lumefantrine (AL), one type of ACT, has been administered to patients with malaria since 2002 by the Research Group on Chemotherapy of Tropical Diseases. Herein, we reviewed malaria cases treated with AL in Japanese travelers. A retrospective study was conducted at the National Center for Global Health and Medicine from October 2005 to March 2013. There were 19 malaria patients treated with AL, and 10 falciparum malaria patients treated with AL only. In these 10 patients treated with AL only, the median time of fever clearance was 25.0 hours (range:14-66 hours), and the median time of parasite clearance was 36.0 hours (range:16-62 hours). There was a positive correlation between parasitemia and time from the start of therapy to the disappearance of the parasites. Parasitemia was higher (4.05% vs. 0.24%; p = 0.044) and parasite clearance time was longer (55.5 hours vs. 31.5 hours; p = 0.044) in the cases of recrudescence than non-recrudescence, respectively. Three of the 19 malaria patients showed recrudescence of malaria after treatment with AL. The reason that treatment failure was m...Continue Reading
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