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Therapeutic efficacies of artemisinin-based combination therapies in Nigerian children with uncomplicated falciparum malaria during five years of adoption as first-line treatments.

Abstract
The therapeutic efficacies of 3-day regimens of artesunate-amodiaquine and artemether-lumefantrine during 5 years of adoption as first-line treatments were evaluated in 811 ≤ 12-year-old malarious children. Compared with artemether-lumefantrine, amodiaquine-artesunate significantly reduced the proportion of children with fever and parasitemia 1 day after treatment (day 1; P < 0.008 for both). The proportion of parasitemic children on day 2 and gametocytemia on presentation and carriage reduced significantly over the years (P < 0.000001 and P < 0.03, respectively; test for trend). Overall efficacy was 96.5% (95% confidence interval [CI] = 94.5-98.6) and remained unchanged over the years (P = 0.87; test for trend). Kinetics of parasitemias after treatments were estimated by a non-compartmental model. Declines of parasitemias were monoexponential, with a mean elimination half-life of 1.09 hours (95% CI = 1.0-1.16). Parasitemia half-lives and efficacy were similar for both regimens and in all ages. Artesunate-amodiaquine and artemether-lumefantrine remain efficacious treatments of uncomplicated falciparum malaria in Nigerian children 5 years after adoption.
AuthorsGrace O Gbotosho, Akintunde Sowunmi, Christian T Happi, Titilope M Okuboyejo
JournalThe American journal of tropical medicine and hygiene (Am J Trop Med Hyg) Vol. 84 Issue 6 Pg. 936-43 (Jun 2011) ISSN: 1476-1645 [Electronic] United States
PMID21633031 (Publication Type: Comparative Study, Journal Article)
Chemical References
  • Antimalarials
  • Artemether, Lumefantrine Drug Combination
  • Artemisinins
  • Drug Combinations
  • Ethanolamines
  • Fluorenes
  • amodiaquine, artesunate drug combination
  • Amodiaquine
Topics
  • Amodiaquine (therapeutic use)
  • Analysis of Variance
  • Antimalarials (therapeutic use)
  • Artemether, Lumefantrine Drug Combination
  • Artemisinins (therapeutic use)
  • Child
  • Child, Preschool
  • Drug Combinations
  • Ethanolamines
  • Female
  • Fluorenes (therapeutic use)
  • Half-Life
  • Humans
  • Infant
  • Malaria, Falciparum (drug therapy, epidemiology)
  • Male
  • Nigeria (epidemiology)
  • Parasitemia (drug therapy, epidemiology)
  • Plasmodium falciparum (drug effects, isolation & purification)
  • Prospective Studies
  • Randomized Controlled Trials as Topic
  • Treatment Outcome

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