Evidence map›Paper›PMID 31745864›Full record

Trial reportClinical pharmacokinetics2020

Midazolam Pharmacokinetics in Obese and Non-obese Children and Adolescents.

Christina Gade, Eva Sverrisdóttir, Kim Dalhoff, Jesper Sonne, Mia Østergaard Johansen, Hanne Rolighed Christensen, Jürgen Burhenne, Gerd Mikus, Jens Christian Holm, Trine Meldgaard Lund and 1 more

Abstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Clinical pharmacokinetics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.7field-weighted citation impact, top 29% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 14 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Review
  5. Article
  6. Article
  7. Review
  8. Pharmacokinetics and Proposed Dosing of Levetiracetam in Children With Obesity.The journal of pediatric pharmacology and therapeutics : JPPT : the official journal of PPAG · 2023
    Article
  9. Review
  10. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 5 institutions in 2 countries.

Christina GadeDepartment of Clinical Pharmacology, Copenhagen University Hospital, Bispebjerg and Frederiksberg, Bispebjerg Bakke, Entrance 20C, 2nd floor, 2400, Copenhagen, Denmark. christina.gade@regionh.dk.ORCID 0000-0002-0007-6158
Eva SverrisdóttirDepartment of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark.
Kim DalhoffDepartment of Clinical Pharmacology, Copenhagen University Hospital, Bispebjerg and Frederiksberg, Bispebjerg Bakke, Entrance 20C, 2nd floor, 2400, Copenhagen, Denmark.
Jesper SonneDepartment of Clinical Pharmacology, Copenhagen University Hospital, Bispebjerg and Frederiksberg, Bispebjerg Bakke, Entrance 20C, 2nd floor, 2400, Copenhagen, Denmark.
Mia Østergaard JohansenChildren's Obesity Clinic, European Center of Management (EASO), Department of Pediatrics, Zealand University Hospital, Holbaek, Denmark.
Hanne Rolighed ChristensenDepartment of Clinical Pharmacology, Copenhagen University Hospital, Bispebjerg and Frederiksberg, Bispebjerg Bakke, Entrance 20C, 2nd floor, 2400, Copenhagen, Denmark.
Jürgen BurhenneDepartment of Clinical Pharmacology and Pharmacoepidemiology, University of Heidelberg, Heidelberg, Germany.
Gerd MikusDepartment of Clinical Pharmacology and Pharmacoepidemiology, University of Heidelberg, Heidelberg, Germany.
Jens Christian HolmChildren's Obesity Clinic, European Center of Management (EASO), Department of Pediatrics, Zealand University Hospital, Holbaek, Denmark.
Trine Meldgaard LundDepartment of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark.
Helle HolstDepartment of Clinical Pharmacology, Copenhagen University Hospital, Bispebjerg and Frederiksberg, Bispebjerg Bakke, Entrance 20C, 2nd floor, 2400, Copenhagen, Denmark.
Bispebjerg Hospital · DKHeidelberg University · DEUniversity of Copenhagen · DKZealand University Hospital · DKFrederiksberg Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMidazolam is a first-line drug for the treatment of status epilepticus, both by buccal and intravenous administration. In children and adolescents with obesity, midazolam pharmacokinetics may be altered, and the current dosing guidelines may therefore be insufficient.

objectiveThe objective of this study was to investigate the pharmacokinetics of midazolam, after intravenous administration, in obese and non-obese adolescents aged 11-18 years.

methodsAll trial participants received a 1-µg midazolam microdose as an intravenous bolus. 13 blood samples were collected per participant at pre-specified timepoints. Plasma concentration-time data were fitted to pharmacokinetic models using non-linear mixed-effects modeling. Covariates such as weight, age, and body mass index standard deviation score were tested to explain the inter-individual variability associated with the pharmacokinetic parameters.

resultsSixty-seven adolescents were included in the analysis. The pharmacokinetics of midazolam was best described with a two-compartment model. The rate of distribution was faster, and the peripheral volume of distribution was larger in adolescents with a high body mass index standard deviation score compared with adolescents with a lower standard deviation score. Simulations revealed that long-term infusions based on total body weight could lead to high plasma concentrations in adolescents with obesity. Furthermore, simulated plasma concentrations after a fixed buccal dose indicated that adolescents with obesity may be at risk of sub-therapeutic midazolam plasma concentrations.

conclusionsThe body mass index standard deviation score was shown to have a significant influence on the peripheral volume of distribution and the inter-compartmental clearance of midazolam. The current dosing guidelines for status epilepticus, where the midazolam dose is adjusted to total body weight or age, may lead to supra- and sub-therapeutic plasma concentrations, respectively, in adolescents with obesity.

trial registrationEudraCT: 2014-004554-34.

Indexed as

MidazolamModels, BiologicalPediatric ObesityAdolescentBody Mass IndexBody WeightChildHumansMidazolam

Identifiers

PMID31745864
OpenAlexW2991356151

What OpenQuestion holds

Textmetadata
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.