Unité de Parasitologie - Unité de Recherche pour les Maladies Infectieuses et Tropicales Emergentes - UMR 6236, Institut de Recherche Biomédicale des Armées, Marseille, France.
Malar J. 2012 May 2;11:146. doi: 10.1186/1475-2875-11-146.
The increased spread of drug-resistant malaria highlights the need for alternative drugs for treatment and chemoprophylaxis. The combination of atovaquone-proguanil (Malarone®) has shown high efficacy against Plasmodium falciparum with only mild side-effects. Treatment failures have been attributed to suboptimal dosages or to parasite resistance resulting from a point mutation in the cytochrome b gene. In this paper, a case of early treatment failure was reported in a patient treated with atovaquone-proguanil; this failure was not associated with a mutation in the parasite cytochrome b gene, with impaired drug bioavailability, or with re-infection.
耐多药疟疾的传播加剧,突显了寻找替代药物进行治疗和化学预防的必要性。阿托伐醌-磺胺多辛(复方阿莫地喹,商品名:科泰复)的组合对恶性疟原虫显示出高效,仅有轻微的副作用。治疗失败归因于剂量不足或由于细胞色素 b 基因突变导致寄生虫耐药。本文报告了 1 例用阿托伐醌-磺胺多辛治疗的患者出现早期治疗失败,该失败与寄生虫细胞色素 b 基因突变、药物生物利用度受损或再感染无关。