期刊
JOURNAL OF INFECTIOUS DISEASES
卷 225, 期 8, 页码 1411-1414出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/infdis/jiab352
关键词
artemisinin-resistance; Rwanda; R561H; P. falciparum malaria; artemether-lumefantrine; K13 mutations; parasite clearance half-lives; clinical study
资金
- Wellcome Trust [207813/Z/17/Z]
- Novartis
- Wellcome Trust [207813/Z/17/Z] Funding Source: Wellcome Trust
Mutations in the Plasmodium falciparum K13 gene have caused treatment failures in malaria patients receiving artemisinin combination therapies in Southeast Asia. Until recently, relevant K13 mutations had been mostly absent from Africa. A phase 2 clinical study in Mali, Gabon, Ghana, Uganda, and Rwanda reported a 22% allele frequency for R561H in Rwanda and associated delayed parasite clearance.
In Southeast Asia, mutations in the Plasmodium falciparum K13 gene have led to delayed parasite clearance and treatment failures in patients with malaria receiving artemisinin combination therapies. Until recently, relevant K13 mutations had been mostly absent from Africa. Between 2018 and 2019, a phase 2 clinical study with 186 patients was conducted in Mali, Gabon, Ghana, Uganda, and Rwanda. Patients with malaria were randomized and treated with artemether-lumefantrine or cipargamin. Here we report an allele frequency of 22% for R561H in Rwanda and associated delayed parasite clearance. Notwithstanding, efficacy of artemether-lumefantrine remained high in Rwanda, with a 94.4% polymerase chain reaction-corrected cure rate. Brief summary: A phase 2 clinical study was conducted in Mali, Gabon, Ghana, Uganda, and Rwanda. Patients with malaria were randomized to artemether-lumefantrine or cipargamin. Here we report an allele frequency of 22% for R561H in Rwanda and associated delayed parasite clearance.
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