Abstract:
:The purpose of this study was (i) to determine the optimal dosage of teicoplanin for each patient group stratified by renal function and weight based on a population pharmacokinetic model and observed distribution of patient characteristics and (ii) to develop new simplified dosing regimens designed to achieve 15-30 μg/mL. Patient data were collected retrospectively from routine therapeutic drug monitoring files of adult patients who were given the standard loading dose regimen of teicoplanin (400 mg twice on Day 1, followed by 400 mg once daily for 2 days) and whose trough concentration was measured just before administration on Day 4. Monte Carlo simulation was conducted to estimate the trough concentration at 72 h after the initial loading dose (C(min)(72 h)) and at steady state (C(ss)(min)). The percentage of observed C(min)(72 h) in patients who received the standard loading dose regimen outside the non-parametric 90% prediction interval (from 5th to 95th percentile) of the simulated C(min)(72 h) was <10%. Simplified loading dose and maintenance dose regimens for each group stratified by renal function and weight were created to achieve C(min)(72 h) and C(ss)(min) of 15 μg/mL and 20-25 μg/mL, respectively. The percentage of C(min)(72 h) and C(ss)(min) in the range 15-30 μg/mL was 43-65% and 61-82% across each renal function and weight strata, respectively. These new simplified dosing regimens of teicoplanin could be helpful in individual adjustment of the loading and maintenance doses to achieve 15-30 μg/mL.
journal_name
Int J Antimicrob Agentsjournal_title
International journal of antimicrobial agentsauthors
Yamada T,Nonaka T,Yano T,Kubota T,Egashira N,Kawashiri T,Oishi Rdoi
10.1016/j.ijantimicag.2012.05.025subject
Has Abstractpub_date
2012-10-01 00:00:00pages
344-8issue
4eissn
0924-8579issn
1872-7913pii
S0924-8579(12)00256-7journal_volume
40pub_type
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