ArticleAntibiotics (Basel, Switzerland)2021
Population Pharmacokinetics Analysis of Amikacin Initial Dosing Regimen in Elderly Patients.
Article in Antibiotics (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed, 7 citations in OpenAlex.
- Population Pharmacokinetics of Amikacin in Non-Neonatal Pediatric Patients: A Scoping Review.European journal of drug metabolism and pharmacokinetics · 2026Article
- Therapeutic Drug Monitoring-Based Population Pharmacokinetics of Amikacin in Patients at a Teaching Hospital.Antibiotics (Basel, Switzerland) · 2025Article
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Authors and funding
8 authors at 2 institutions in 2 countries.
Funding
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Abstract
There are limited data of amikacin pharmacokinetics (PK) in the elderly population. Hence, we aimed to describe the population PK of amikacin in elderly patients (>70 years old) and to establish optimized initial dosing regimens. We simulated individual maximum concentrations in plasma (Cmax) and minimal concentrations (Cmin) for several dosing regimens (200-2000 mg every 24, 48, and 72 h) for patients with creatinine clearance (CCr) of 10-90 mL/min and analyzed efficacy (Cmax/minimal inhibitory concentration (MIC) ≥ 8) for MICs of 4, 8, and 16 mg/L and safety (Cmin < 4 mg/L). A one-compartment model best described the data. CCr was the only covariate associated with amikacin clearance. The population PK parameter estimates were 2.25 L/h for clearance and 18.0 L for volume of distribution. Dosing simulations recommended the dosing regimens (1800 mg) with dosing intervals ranging 48-72 h for patients with CCr of 40-90 mL/min based on achievement of both efficacy for the MIC of 8 mg/L and safety. None of the dosing regimens achieved the targets for an MIC of 16 mg/L. We recommend the initial dosing regimen using a nomogram based on CCr for an MIC of ≤8 mg/L in elderly patients with CCr of 40-90 mL/min.
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