Evidence map›Paper›PMID 28960387›Full record

ArticleBritish journal of clinical pharmacology2018

Population pharmacodynamic modelling of midazolam induced sedation in terminally ill adult patients.

Linda G Franken, Brenda C M de Winter, Anniek D Masman, Monique van Dijk, Frans P M Baar, Dick Tibboel, Birgit C P Koch, Teun van Gelder, Ron A A Mathot

Open access · hybridAbstract read
In one paragraph

Article in British journal of clinical pharmacology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
4.5field-weighted citation impact, top 5% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Incorporating new approach methods (NAMs) data in dose-response assessments: The future is now!Journal of toxicology and environmental health. Part B, Critical reviews · 2025
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Observational
  9. Article
  10. Midazolam: an essential palliative care drug.Palliative care and social practice · 2020
    Review
  11. Review
  12. Article
  13. Article
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

9 authors at 4 institutions in 1 country.

Linda G FrankenDepartment of Hospital Pharmacy, Erasmus Medical Centre, Rotterdam, The Netherlands.ORCID 0000-0001-6436-9825
Brenda C M de WinterDepartment of Hospital Pharmacy, Erasmus Medical Centre, Rotterdam, The Netherlands.
Anniek D MasmanPalliative Care Centre, Laurens Cadenza, Rotterdam, The Netherlands.
Monique van DijkIntensive Care, Department of Paediatric Surgery, Erasmus MC-Sophia Children's Hospital, Rotterdam, The Netherlands.
Frans P M BaarPalliative Care Centre, Laurens Cadenza, Rotterdam, The Netherlands.
Dick TibboelIntensive Care, Department of Paediatric Surgery, Erasmus MC-Sophia Children's Hospital, Rotterdam, The Netherlands.
Birgit C P KochDepartment of Hospital Pharmacy, Erasmus Medical Centre, Rotterdam, The Netherlands.
Teun van GelderDepartment of Hospital Pharmacy, Erasmus Medical Centre, Rotterdam, The Netherlands.ORCID 0000-0001-5980-6947
Ron A A MathotHospital Pharmacy - Clinical Pharmacology, Academic Medical Centre, Amsterdam, The Netherlands.
Erasmus University Rotterdam · NLErasmus MC - Sophia Children’s Hospital · NLLaurens · NLAmsterdam UMC Location University of Amsterdam · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsMidazolam is the drug of choice for palliative sedation and is titrated to achieve the desired level of sedation. A previous pharmacokinetic (PK) study showed that variability between patients could be partly explained by renal function and inflammatory status. The goal of this study was to combine this PK information with pharmacodynamic (PD) data, to evaluate the variability in response to midazolam and to find clinically relevant covariates that may predict PD response.

methodA population PD analysis using nonlinear mixed effect models was performed with data from 43 terminally ill patients. PK profiles were predicted by a previously described PK model and depth of sedation was measured using the Ramsay sedation score. Patient and disease characteristics were evaluated as possible covariates. The final model was evaluated using a visual predictive check.

resultsThe effect of midazolam on the sedation level was best described by a differential odds model including a baseline probability, Emax model and interindividual variability on the overall effect. The EC50 value was 68.7 μg l

conclusionWe were able to describe the clinical response to midazolam accurately. As expected, there was large variability in response to midazolam. The use of haloperidol was associated with a lower probability of sedation. This may be a result of confounding by indication, as haloperidol was used to treat delirium, and deliria has been linked to a more difficult sedation procedure.

Indexed as

Models, BiologicalTerminally IllAdultAgedAged, 80 and overComputer SimulationDeep SedationDrug MonitoringFemaleHumansHypnotics and SedativesMaleMidazolamMiddle AgedPredictive Value of TestsTerminal CareHypnotics and SedativesMidazolamNONMEMpalliative carepharmacodynamicssedation

Identifiers

PMID28960387
PMCPMC5777431
OpenAlexW2758365326

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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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.