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Rapid Increase in Clearance of Phenobarbital in Neonates on Extracorporeal Membrane Oxygenation: A Pilot Retrospective Population Pharmacokinetic Analysis

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11110%2F20%3A10415726" target="_blank" >RIV/00216208:11110/20:10415726 - isvavai.cz</a>

  • Nalezeny alternativní kódy

    RIV/00064165:_____/20:10415726

  • Výsledek na webu

    <a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Ii5eWyIERn" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Ii5eWyIERn</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1097/PCC.0000000000002402" target="_blank" >10.1097/PCC.0000000000002402</a>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Rapid Increase in Clearance of Phenobarbital in Neonates on Extracorporeal Membrane Oxygenation: A Pilot Retrospective Population Pharmacokinetic Analysis

  • Popis výsledku v původním jazyce

    Objectives: This study characterizes the changes in the pharmacokinetics of phenobarbital associated with extracorporeal membrane oxygenation treatment in neonates, to illustrate our findings and provide guidance on dosing. Design: Retrospective pilot population pharmacokinetic analysis. Setting: Neonatal ICU. Patients: Thirteen critically ill neonates (birth body weight, 3.21kg [2.65-3.72 kg]; postnatal age at start of treatment: 2 d [0-7 d]; gestational age: 38wk [38-41 wk]) receiving venovenous or venoarterial extracorporeal membrane oxygenation. Interventions: Phenobarbital administered in a loading dose of 7.5mg/kg (8.5-16mg/kg) and maintenance dose of 6.9mg/kg/d (4.5-8.5mg/kg/d). Measurements and Main Results: Therapeutic drug monitoring data were available, yielding 5, 31, and 19 phenobarbital concentrations before, during, and after extracorporeal membrane oxygenation, respectively. Population pharmacokinetic analysis was performed using NONMEM 7.3.0 (ICON Development Solutions, Ellicott City, MD). Maturation functions for clearance and volume of distribution were obtained from literature. In a one-compartment model, clearance and volume of distribution for a typical neonate off extracorporeal membrane oxygenation and with a median birth body weight (3.21kg) at median postnatal age (2 d) were 0.0096L/hr (relative se = 11%)) and 2.72L (16%), respectively. During extracorporeal membrane oxygenation, clearance was found to linearly increase with time. Upon decannulation, phenobarbital clearance initially decreased and subsequently increased slowly driven by maturation. Extracorporeal membrane oxygenation-related changes in volume of distribution could not be identified, possibly due to sparse data collection shortly after extracorporeal membrane oxygenation start. According to the model, target attainment is achieved in the first 12 days of extracorporeal membrane oxygenation with a regimen of a loading dose of 20mg/kg and a maintenance dose of 4mg/kg/d divided in two doses with an increase of 0.25mg/kg every 12 hours during extracorporeal membrane oxygenation treatment. Conclusions: We found a time-dependent increase in phenobarbital clearance during the first 12 days of extracorporeal membrane oxygenation treatment in neonates, which results in continuously decreasing phenobarbital exposure and increases the risk of therapeutic failure over time. Due to high unexplained variability, frequent and repeated therapeutic drug monitoring should be considered even with the model-derived regimen.

  • Název v anglickém jazyce

    Rapid Increase in Clearance of Phenobarbital in Neonates on Extracorporeal Membrane Oxygenation: A Pilot Retrospective Population Pharmacokinetic Analysis

  • Popis výsledku anglicky

    Objectives: This study characterizes the changes in the pharmacokinetics of phenobarbital associated with extracorporeal membrane oxygenation treatment in neonates, to illustrate our findings and provide guidance on dosing. Design: Retrospective pilot population pharmacokinetic analysis. Setting: Neonatal ICU. Patients: Thirteen critically ill neonates (birth body weight, 3.21kg [2.65-3.72 kg]; postnatal age at start of treatment: 2 d [0-7 d]; gestational age: 38wk [38-41 wk]) receiving venovenous or venoarterial extracorporeal membrane oxygenation. Interventions: Phenobarbital administered in a loading dose of 7.5mg/kg (8.5-16mg/kg) and maintenance dose of 6.9mg/kg/d (4.5-8.5mg/kg/d). Measurements and Main Results: Therapeutic drug monitoring data were available, yielding 5, 31, and 19 phenobarbital concentrations before, during, and after extracorporeal membrane oxygenation, respectively. Population pharmacokinetic analysis was performed using NONMEM 7.3.0 (ICON Development Solutions, Ellicott City, MD). Maturation functions for clearance and volume of distribution were obtained from literature. In a one-compartment model, clearance and volume of distribution for a typical neonate off extracorporeal membrane oxygenation and with a median birth body weight (3.21kg) at median postnatal age (2 d) were 0.0096L/hr (relative se = 11%)) and 2.72L (16%), respectively. During extracorporeal membrane oxygenation, clearance was found to linearly increase with time. Upon decannulation, phenobarbital clearance initially decreased and subsequently increased slowly driven by maturation. Extracorporeal membrane oxygenation-related changes in volume of distribution could not be identified, possibly due to sparse data collection shortly after extracorporeal membrane oxygenation start. According to the model, target attainment is achieved in the first 12 days of extracorporeal membrane oxygenation with a regimen of a loading dose of 20mg/kg and a maintenance dose of 4mg/kg/d divided in two doses with an increase of 0.25mg/kg every 12 hours during extracorporeal membrane oxygenation treatment. Conclusions: We found a time-dependent increase in phenobarbital clearance during the first 12 days of extracorporeal membrane oxygenation treatment in neonates, which results in continuously decreasing phenobarbital exposure and increases the risk of therapeutic failure over time. Due to high unexplained variability, frequent and repeated therapeutic drug monitoring should be considered even with the model-derived regimen.

Klasifikace

  • Druh

    J<sub>imp</sub> - Článek v periodiku v databázi Web of Science

  • CEP obor

  • OECD FORD obor

    30104 - Pharmacology and pharmacy

Návaznosti výsledku

  • Projekt

  • Návaznosti

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Ostatní

  • Rok uplatnění

    2020

  • Kód důvěrnosti údajů

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Údaje specifické pro druh výsledku

  • Název periodika

    Pediatric Critical Care Medicine

  • ISSN

    1529-7535

  • e-ISSN

  • Svazek periodika

    21

  • Číslo periodika v rámci svazku

    9

  • Stát vydavatele periodika

    US - Spojené státy americké

  • Počet stran výsledku

    9

  • Strana od-do

    "E707"-"E715"

  • Kód UT WoS článku

    000571080600014

  • EID výsledku v databázi Scopus

    2-s2.0-85090504984