Evidence map›Paper›PMID 31037028›Full record

ArticleDrug design, development and therapy2019

Metabolism of remimazolam in primary human hepatocytes during continuous long-term infusion in a 3-D bioreactor system.

Nora Freyer, Fanny Knöspel, Georg Damm, Selina Greuel, Christin Schneider, Daniel Seehofer, Thomas Stöhr, Karl-Uwe Petersen, Katrin Zeilinger

Open access · goldAbstract read
In one paragraph

Article in Drug design, development and therapy, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
2.1field-weighted citation impact, top 14% 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

36 citing papers in PubMed, 67 citations in OpenAlex.

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  11. Remimazolam: a comprehensive review.Anaesthesiology intensive therapy · 2025
    Review
  12. Remimazolam in anesthesia and sedation: A narrative review.Journal of anesthesia and translational medicine · 2025
    Review
  13. Review
  14. Article
  15. Article
  16. The EDFrontiers in medicine · 2025
    Article
  17. Evaluating Remimazolam for Procedural Sedation.Current neuropharmacology · 2025
    Review
  18. Article
  19. Review
  20. 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

9 authors at 3 institutions in 1 country.

Nora FreyerBerlin Brandenburg Center for Regenerative Therapies (BCRT), Charité - Universitätsmedizin Berlin, Berlin 13353, Germany, nora-freyer@gmx.de.
Fanny KnöspelBerlin Brandenburg Center for Regenerative Therapies (BCRT), Charité - Universitätsmedizin Berlin, Berlin 13353, Germany, nora-freyer@gmx.de.
Georg DammDepartment of Hepatobiliary Surgery and Visceral Transplantation, University of Leipzig, Leipzig 04103, Germany.
Selina GreuelBerlin Brandenburg Center for Regenerative Therapies (BCRT), Charité - Universitätsmedizin Berlin, Berlin 13353, Germany, nora-freyer@gmx.de.
Christin SchneiderBerlin Brandenburg Center for Regenerative Therapies (BCRT), Charité - Universitätsmedizin Berlin, Berlin 13353, Germany, nora-freyer@gmx.de.
Daniel SeehoferDepartment of Hepatobiliary Surgery and Visceral Transplantation, University of Leipzig, Leipzig 04103, Germany.
Thomas StöhrPAION Deutschland GmbH (Non-clinical development), Aachen 52062, Germany.
Karl-Uwe PetersenPAION Deutschland GmbH (Non-clinical development), Aachen 52062, Germany.
Katrin ZeilingerBerlin Brandenburg Center for Regenerative Therapies (BCRT), Charité - Universitätsmedizin Berlin, Berlin 13353, Germany, nora-freyer@gmx.de.
Berlin-Brandenburger Centrum für Regenerative Therapien · DEPaion (Germany) · DEUniversity Hospital Leipzig · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRemimazolam is an ultra-short acting benzodiazepine under development for procedural sedation and general anesthesia. It is hydrolyzed by CES1 to an inactive metabolite (CNS7054). PURPOSE: In this study, the effect of continuous remimazolam exposure on its metabolism and on

methodsRemimazolam was continuously infused into bioreactors for 5 days at a final concentration of 3,000 ng/ml (6.8 µM). In parallel, 2-D cultures were run with cells from the same donors, but with discontinuous exposure to remimazolam.

resultsDaily measurement of clinical chemistry parameters (glucose, lactate, urea, ammonia, and liver enzymes) in culture supernatants indicated no noxious effect of remimazolam on hepatocyte integrity as compared to untreated controls. Concentrations of remimazolam reached steady-state values of around 250 ng/ml within 8 hours in 3-D bioreactors whereas in 2-D cultures remimazolam concentrations declined to almost zero within the same time frame. Levels of CNS7054 showed an inverse time-course reaching average values of 1,350 ng/ml in perfused 3-D bioreactors resp. 2,800 ng/ml in static 2-D cultures. Analysis of mRNA expression levels of

conclusionThe results indicated a stable metabolism of remimazolam during 5 days of continuous exposure to clinically relevant concentrations of the drug. Moreover, there was no evidence for a harmful effect of remimazolam exposure on the integrity and metabolic activity of in vitro cultivated primary human hepatocytes.

Indexed as

BioreactorsBenzodiazepinesCarboxylic Ester HydrolasesHepatocytesHumansBenzodiazepinesCarboxylic Ester HydrolasesCES1 protein, humanremimazolambenzodiazepinecarboxylesterase 1CNS7054metabolitesteady state

Identifiers

PMID31037028
PMCPMC6450186
OpenAlexW2929003467

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

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.