Detailed Information on Publication Record
2022
Population Pharmacokinetic Analysis Proves Superiority of Continuous Infusion in PK/PD Target Attainment with Oxacillin in Staphylococcal Infections
MURÍNOVÁ, Irena, Martin SVIDRNOCH, Tomas GUCKY, Jan HLAVAC, Pavel MICHALEK et. al.Basic information
Original name
Population Pharmacokinetic Analysis Proves Superiority of Continuous Infusion in PK/PD Target Attainment with Oxacillin in Staphylococcal Infections
Authors
MURÍNOVÁ, Irena (203 Czech Republic, belonging to the institution), Martin SVIDRNOCH, Tomas GUCKY, Jan HLAVAC, Pavel MICHALEK, Ondrej SLANAR and Martin SIMA (guarantor)
Edition
Antibiotics, BASEL, MDPI, 2022, 2079-6382
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
30104 Pharmacology and pharmacy
Country of publisher
Switzerland
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 4.800
RIV identification code
RIV/00216224:14160/22:00128006
Organization unit
Faculty of Pharmacy
UT WoS
000900615800001
Keywords in English
antibiotics; nonlinear mixed-effects modeling; glomerular filtration rate; dosing regimen; oxacillin; Monte Carlo simulations
Tags
International impact, Reviewed
Změněno: 16/1/2023 09:34, JUDr. Sabina Krejčiříková
Abstract
V originále
Considering its very short elimination half-life, the approved oxacillin dosage might not be sufficient to maintain the pharmacokinetic/pharmacodynamics (PK/PD) target of time-dependent antibiotics. This study aimed to describe the population pharmacokinetics of oxacillin and to explore the probability of PK/PD target attainment by using various dosing regimens with oxacillin in staphylococcal infections. Both total and unbound oxacillin plasma concentrations retrieved as a part of routine therapeutic drug-monitoring practice were analyzed using nonlinear mixed-effects modeling. Monte Carlo simulations were used to generate the theoretical distribution of unbound oxacillin plasma concentration-time profiles at various dosage regimens. Data from 24 patients treated with oxacillin for staphylococcal infection have been included into the analysis. The volume of distribution of oxacillin in the population was 11.2 L, while the elimination rate constant baseline of 0.73 h(-1) increased by 0.3 h(-1) with each 1 mL/s/1.73 m(2) of the estimated glomerular filtration rate (eGFR). The median value of oxacillin binding to plasma proteins was 86%. The superiority of continuous infusion in achieving target PK/PD values was demonstrated and dosing according to eGFR was proposed. Daily oxacillin doses of 9.5 g, 11 g, or 12.5 g administered by continuous infusion have been shown to be optimal for achieving target PK/PD values in patients with moderate, mild, or normal renal function, respectively.