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- Title
Chlorproguanil -- Dapsone -- Artesunate versus Artemether -- Lumefantrine: A Randomized, Double-Blind Phase III Trial in African Children and Adolescents with Uncomplicated Plasmodium falciparum Malaria.
- Authors
Premji, Zul; Umeh, Rich E.; Owusu-Agyei, Seth; Esamai, Fabian; Ezedinachi, Emmanuel U.; Oguche, Stephen; Borrmann, Steffen; Sowunmi, Akintunde; Duparc, Stephan; Kirby, Paula L.; Pamba, Allan; Kellam, Lynda; Guiguemdé, Robert; Greenwood, Brian; Ward, Stephen A.; Winstanley, Peter A.
- Abstract
Background: Chlorproguanil-dapsone-artesunate (CDA) was developed as an affordable, simple, fixed-dose artemisininbased combination therapy for use in Africa. This trial was a randomized parallel-group, double-blind, double-dummy study to compare CDA and artemether-lumefantrine (AL) efficacy in uncomplicated Plasmodium falciparum malaria and further define the CDA safety profile, particularly its hematological safety in glucose-6-phosphate dehydrogenase (G6PD) -deficient patients. Methods and Findings: The trial was conducted at medical centers at 11 sites in five African countries between June 2006 and August 2007. 1372 patients (&#x--65;1 to <15 years old, median age 3 years) with acute uncomplicated P. falciparum malaria were randomized (2:1) to receive CDA 2/2.5/4 mg/kg once daily for three days (N = 914) or six-doses of AL over three days (N = 458). Non-inferiority of CDA versus AL for efficacy was evaluated in the Day 28 per-protocol (PP) population using parasitological cure (polymerase chain reaction [PCR]-corrected). Cure rates were 94.1% (703/747) for CDA and 97.4% (369/ 379) for AL (treatment difference -3.3%, 95%CI -5.6, -0.9). CDA was non-inferior to AL, but there was simultaneous superiority of AL (upper 95%CI limit <0). Adequate clinical and parasitological response at Day 28 (uncorrected for reinfection) was 79% (604/765) with CDA and 83% (315/381) with AL. In patients with a G6PD-deficient genotype (94/603 [16%] hemizygous males, 22/598 [4%] homozygous females), CDA had the propensity to cause severe and clinically concerning hemoglobin decreases: the mean hemoglobin nadir was 75 g/L (95%CI 71, 79) at Day 7 versus 97 g/L (95%CI 91, 102) for AL. There were three deaths, unrelated to study medication (two with CDA, one with AL). Conclusions: Although parasitologically effective at Day 28, the hemolytic potential of CDA in G6PD-deficient patients makes it unsuitable for use in a public health setting in Africa. Trial Registration ClinicalTrials.gov NCT00344006
- Subjects
AFRICA; MALARIA; PROTOZOAN diseases; PLASMODIUM falciparum; LEPROSTATIC agents; DAPSONE; DNA polymerases; DEHYDROGENASES; ERYTHROCYTES; GENETIC research
- Publication
PLoS ONE, 2009, Vol 4, Issue 8, p1
- ISSN
1932-6203
- Publication type
Article
- DOI
10.1371/journal.pone.0006682