[Clinical pharmacology and efficacy of meropenem]
1Department of Pediatrics, Sapporo Medical College.
Abstract:
We studied a newly developed carbapenem, meropenem (MEPM), and obtained the following results. 1. Pharmacokinetics of MEPM in pediatrics was examined in 3 patients. MEPM was injected intravenously at a dose of 16-22 mg/kg by drip infusion for 30 minutes, and its concentrations in serum and urine were determined using bioassay. The average peak value of serum levels of MEPM was 38.4 micrograms/ml and T1/2 beta of MEPM was 1.26 hours. The urinary recovery rate for the first 6 hours after administration was 65.6%. 2. Clinical evaluations of MEPM in pediatrics were done in 14 patients with ages ranging, 1 month to 14 years, with various bacterial infections. Excellent or good clinical responses were observed in all patients, and bacteriological eradication were obtained in 7 out of 8 cases. No serious side effects were observed in any cases, but 2 showed mild and transient GOT, GPT elevations.
Insights
Meropenem (MEPM), a new carbapenem antibiotic, shows promising pharmacokinetic and clinical profiles in pediatric patients. It demonstrated effective bacterial eradication with minimal adverse effects, suggesting its potential for treating pediatric infections.
Area of Science:
- Pharmacology
- Pediatric Infectious Diseases
- Antimicrobial Agents
Background:
- Meropenem (MEPM) is a novel carbapenem antibiotic.
- Pediatric infections require effective and safe antimicrobial treatments.
Purpose of the Study:
- To evaluate the pharmacokinetics of meropenem (MEPM) in pediatric patients.
- To assess the clinical efficacy and safety of meropenem (MEPM) for treating bacterial infections in children.
Main Methods:
- Pharmacokinetic analysis of MEPM in 3 pediatric patients via intravenous drip infusion (16-22 mg/kg).
- Serum and urine concentrations of MEPM were determined using bioassay.
- Clinical evaluation of MEPM in 14 pediatric patients (1 month to 14 years) with various bacterial infections.
Main Results:
- Average peak serum MEPM level was 38.4 µg/ml with a T1/2 beta of 1.26 hours.
- Urinary recovery rate for MEPM was 65.6% within 6 hours post-administration.
- Excellent/good clinical response in all patients; bacteriological eradication in 7/8 cases. Mild, transient elevations in GOT/GPT observed in 2 patients.
Conclusions:
- Meropenem (MEPM) exhibits favorable pharmacokinetic properties in pediatric patients.
- MEPM demonstrated high clinical efficacy and a good safety profile for treating pediatric bacterial infections.
- Further investigation into MEPM's role in pediatric infectious disease management is warranted.
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