Extended-interval gentamicin administration in malnourished children

Area of Science:

• Pediatric Infectious Diseases
• Pharmacokinetics and Drug Metabolism
• Global Health

Background:

• Malnourished children exhibit altered drug pharmacokinetics, impacting treatment efficacy.
• Limited data exists on gentamicin dosing strategies in this vulnerable population.
• Conventional thrice-daily (TD) gentamicin dosing may not be optimal for malnourished children.

Purpose of the Study:

• To compare the efficacy, safety, and pharmacokinetics of once-daily (OD) versus TD gentamicin in malnourished children.
• To evaluate gentamicin's effectiveness in treating diarrhea and pneumonia in this population.
• To establish optimal gentamicin dosing for improved patient outcomes and reduced healthcare burden.

Main Methods:

• A randomized controlled trial involving 310 malnourished children aged 6 months to 5 years.
• Children received intramuscular gentamicin OD or TD, combined with ceftriaxone.
• Pharmacokinetic analysis was performed on a subgroup to assess serum gentamicin concentrations.

Main Results:

• Clinical response rates were similar between OD and TD groups (64% vs. 54% good response; 25% vs. 27% partial response).
• No significant renal toxicity was observed in either group.
• The OD group demonstrated significantly higher peak (p<0.001) and lower trough (p<0.001) gentamicin concentrations compared to the TD group.

Conclusions:

• Once-daily gentamicin is an effective and safe therapeutic option for malnourished children.
• The OD regimen achieves favorable pharmacokinetic profiles in this population.
• Widespread adoption of OD gentamicin is recommended to reduce injections and hospital costs.