Evidence map›Paper›PMID 23839483›Full record

Trial reportClinical drug investigation2013

Population pharmacokinetics of dexmedetomidine in critically ill patients.

Pyry Antti Välitalo, Tuula Ahtola-Sätilä, Andrew Wighton, Toni Sarapohja, Pasi Pohjanjousi, Chris Garratt

Abstract readClinical Trial, Phase III
In one paragraph

Trial report in Clinical drug investigation, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
–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

25 citing papers in PubMed.

  1. Trial
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  11. Observational
  12. Review
  13. Pharmacokinetics of dexmedetomidine during analgosedation in ICU patients.Journal of pharmacokinetics and pharmacodynamics · 2018
    Article
  14. Article
  15. Review
  16. Article
  17. Article
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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.

Pyry Antti VälitaloFaculty of Health Sciences, School of Pharmacy, University of Eastern Finland, PO Box 1624, 70211, Kuopio, Finland. pyry.valitalo@uef.fi
Tuula Ahtola-Sätilä
Andrew Wighton
Toni Sarapohja
Pasi Pohjanjousi
Chris Garratt

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesAlthough the pharmacokinetics of dexmedetomidine in healthy volunteers have been studied, there are limited data about the pharmacokinetics of long-term administration of dexmedetomidine in critically ill patients.

methodsThis population pharmacokinetic analysis was performed to quantify the pharmacokinetics of dexmedetomidine in critically ill patients following infusions up to 14 days in duration. The data consisted of three phase III studies (527 patients with sparse blood sampling, for a total of 2,144 samples). Covariates were included in a full random-effects covariate model and the most important covariate relationships were tested separately. The linearity of dexmedetomidine clearance was evaluated by observing steady-state plasma concentrations acquired at various infusion rates.

resultsThe data were adequately described with a one-compartment model. The clearance of dexmedetomidine was 39 (95 % CI 37-41) L/h and volume of distribution 104 (95 % CI 93-115) L. Both clearance and volume of distribution were highly variable between patients (coefficients of variation of 62 and 57 %, respectively), which highlights the importance of dose titration by response. Covariate analysis showed a strong correlation between body weight and clearance of dexmedetomidine. The clearance of dexmedetomidine was constant in the dose range 0.2-1.4 μg/kg/h.

conclusionsThe pharmacokinetics of dexmedetomidine are dose-proportional in prolonged infusions when dosing rates of 0.2-1.4 μg/kg/h, recommended by the Dexdor(®) summary of product characteristics, are used.

Indexed as

Critical IllnessAdrenergic alpha-2 Receptor AgonistsAgedDexmedetomidineFemaleHumansMaleMiddle AgedModels, BiologicalAdrenergic alpha-2 Receptor AgonistsDexmedetomidine

Identifiers

PMID23839483
PMCPMC3717151

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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.