Randomized, prospective, three-arm study to confirm the auditory safety and efficacy of artemether-lumefantrine in Colombian patients with uncomplicated Plasmodium falciparum malaria

Am J Trop Med Hyg. 2012 Jan;86(1):75-83. doi: 10.4269/ajtmh.2012.11-0192.

Abstract

The safety of artemether-lumefantrine in patients with acute, uncomplicated Plasmodium falciparum malaria was investigated prospectively using the auditory brainstem response (ABR) and pure-tone thresholds. Secondary outcomes included polymerase chain reaction-corrected cure rates. Patients were randomly assigned in a 3:1:1 ratio to either artemether-lumefantrine (N = 159), atovaquone-proguanil (N = 53), or artesunate-mefloquine (N = 53). The null hypothesis (primary outcome), claiming that the percentage of patients with a baseline to Day-7 ABR Wave III latency increase of > 0.30 msec is ≥ 15% after administration of artemether-lumefantrine, was rejected; 2.6% of patients (95% confidence interval: 0.7-6.6) exceeded 0.30 msec, i.e., significantly below 15% (P < 0.0001). A model-based analysis found no apparent relationship between drug exposure and ABR change. In all three groups, average improvements (2-4 dB) in pure-tone thresholds were observed, and polymerase chain reaction-corrected cure rates were > 95% to Day 42. The results support the continued safe and efficacious use of artemether-lumefantrine in uncomplicated falciparum malaria.

Publication types

  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Antimalarials / administration & dosage
  • Antimalarials / adverse effects*
  • Antimalarials / therapeutic use
  • Artemether, Lumefantrine Drug Combination
  • Artemisinins / administration & dosage
  • Artemisinins / adverse effects*
  • Artemisinins / therapeutic use
  • Artesunate
  • Atovaquone / administration & dosage
  • Atovaquone / adverse effects
  • Atovaquone / therapeutic use
  • Audiometry
  • Child
  • Colombia
  • Drug Combinations
  • Drug Therapy, Combination
  • Ethanolamines
  • Evoked Potentials, Auditory, Brain Stem / drug effects*
  • Female
  • Fluorenes / administration & dosage
  • Fluorenes / adverse effects*
  • Fluorenes / therapeutic use
  • Humans
  • Malaria, Falciparum / drug therapy*
  • Malaria, Falciparum / parasitology
  • Male
  • Mefloquine / administration & dosage
  • Mefloquine / adverse effects
  • Mefloquine / therapeutic use
  • Middle Aged
  • Plasmodium falciparum / drug effects
  • Proguanil / administration & dosage
  • Proguanil / adverse effects
  • Proguanil / therapeutic use
  • Prospective Studies
  • Treatment Outcome
  • Young Adult

Substances

  • Antimalarials
  • Artemether, Lumefantrine Drug Combination
  • Artemisinins
  • Drug Combinations
  • Ethanolamines
  • Fluorenes
  • atovaquone, proguanil drug combination
  • Artesunate
  • Proguanil
  • Mefloquine
  • Atovaquone