Evidence map›Paper›PMID 40312166›Full record

ArticleBritish journal of anaesthesia2025

Development and analysis of a remimazolam pharmacokinetics and pharmacodynamics model with proposed dosing and concentrations for anaesthesia and sedation.

Douglas J Eleveld, Pieter J Colin, Johannes P Van den Berg, Jeroen V Koomen, Thomas Stoehr, Michel M R F Struys

Abstract read
In one paragraph

Article in British journal of anaesthesia, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

17 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
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  5. Article
  6. Association Between American Society of Anesthesiologists Physical Status Classification System and Remimazolam Sedation Outcomes.Academic emergency medicine : official journal of the Society for Academic Emergency Medicine · 2026
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  7. Review
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  9. Age-Stratified EDDrug design, development and therapy · 2026
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  15. Observational
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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

6 authors.

Douglas J EleveldDepartment of Anesthesiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands. Electronic address: d.j.eleveld@umcg.nl.
Pieter J ColinDepartment of Anesthesiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
Johannes P Van den BergDepartment of Anesthesiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
Jeroen V KoomenDepartment of Anesthesiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
Thomas StoehrPaion Pharma GmbH, Aachen, Germany.
Michel M R F StruysDepartment of Anesthesiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; Department of Basic and Applied Medical Sciences, Ghent University, Ghent, Belgium.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPharmacokinetic-pharmacodynamic (PK-PD) models of remimazolam and their covariate relationships are useful for understanding drug disposition and predicting drug effects. Although clinical studies have shown that remimazolam induction doses decline with advancing age, this property is not reflected in existing models. The purpose of this investigation was to develop a PK-PD model for remimazolam and perform covariate analysis to maximise its utility across broad, diverse populations and to evaluate its consistency with clinical observations of drug dosing.

methodsArterial and venous concentrations of remimazolam and its metabolite, Modified Observer's Assessment of Alertness and Sedation score and bispectral index were determined in 20 studies. Final population models were developed with covariate analysis. Simulations of drug administration for sedation and anaesthesia for this and previously published models were compared with the results of clinical studies.

resultsModel development proceeded from 933 individuals aged 6-93 yr and weight 21-171 kg. PK data from studies with extracorporeal membrane oxygenation and treatment in ICU were considered in a post hoc analysis. Simulations of target-controlled infusion with the final model targeting sedation (Modified Observer's Assessment of Alertness and Sedation score 2 or 3) or anaesthesia (bispectral index 50) showed drug administration declining with age consistent with clinical observations.

conclusionsA PK-PD model for remimazolam was developed for a broad, diverse population. Dosing and target concentrations are proposed that are clinically useful for anaesthesia and sedation, especially for target-controlled infusion administration.

Indexed as

BenzodiazepinesHypnotics and SedativesModels, BiologicalAdolescentAdultAgedAged, 80 and overChildDose-Response Relationship, DrugFemaleHumansMaleMiddle AgedProcedural SedationYoung AdultBenzodiazepinesHypnotics and SedativesremimazolamADMEantagonismCNS7054drug interactionmetabolismpharmacodynamicspharmacokineticsremimazolam

Identifiers

PMID40312166
PMCPMC12597572

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Registered trials

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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.