Evidence map›Paper›PMID 31658494›Full record

ArticleBritish journal of clinical pharmacology2020

Pharmacokinetics of intravenous and inhaled salbutamol and tobramycin: An exploratory study to investigate the potential of exhaled breath condensate as a matrix for pharmacokinetic analysis.

Matthijs D Kruizinga, Willem A J Birkhoff, Michiel J van Esdonk, Naomi B Klarenbeek, Tomasz Cholewinski, Tessa Nelemans, Melloney J Dröge, Adam F Cohen, Rob G J A Zuiker

Abstract read
In one paragraph

Article in British journal of clinical pharmacology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed.

  1. Assessing Human Lung Pharmacokinetics Using Exhaled Breath Particles.Journal of aerosol medicine and pulmonary drug delivery · 2025
    Trial
  2. Trial
  3. Article
  4. A new method for investigating bioequivalence of inhaled formulations: A pilot study on salbutamol.Journal of pharmacy & pharmaceutical sciences : a publication of the Canadian Society for Pharmaceutical Sciences, Societe canadienne des sciences pharmaceutiques · 2023
    Article
  5. Article
  6. Article
  7. 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.

Matthijs D KruizingaCentre for Human Drug Research, Leiden, the Netherlands.ORCID 0000-0002-2054-2187
Willem A J BirkhoffCentre for Human Drug Research, Leiden, the Netherlands.ORCID 0000-0001-5832-0646
Michiel J van EsdonkCentre for Human Drug Research, Leiden, the Netherlands.ORCID 0000-0001-8159-0273
Naomi B KlarenbeekCentre for Human Drug Research, Leiden, the Netherlands.
Tomasz CholewinskiCentre for Human Drug Research, Leiden, the Netherlands.
Tessa NelemansCentre for Human Drug Research, Leiden, the Netherlands.
Melloney J DrögeArdena Bioanalytical Laboratory BV, Assen, the Netherlands.
Adam F CohenCentre for Human Drug Research, Leiden, the Netherlands.ORCID 0000-0001-7452-6222
Rob G J A ZuikerCentre for Human Drug Research, Leiden, the Netherlands.ORCID 0000-0001-5604-0157

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Concentrations of drugs acting in the lungs are difficult to measure, resulting in relatively unknown local pharmacokinetics. The aim of this study is to assess the potential of exhaled breath condensate (EBC) as a matrix for pharmacokinetic analysis of inhaled and intravenous medication. A 4-way crossover study was conducted in 12 volunteers with tobramycin and salbutamol intravenously and via inhalation. EBC and plasma samples were collected postdose and analysed for drug concentrations. Sample dilution, calculated using urea concentrations, was used to estimate the epithelial lining fluid concentration. Salbutamol and tobramycin were largely undetectable in EBC after intravenous administration and were detectable after inhaled administration in all subjects in 50.8 and 51.5% of EBC samples, respectively. Correction of EBC concentrations for sample dilution did not explain the high variability. This high variability of EBC drug concentrations seems to preclude EBC as a matrix for pharmacokinetic analysis of tobramycin and salbutamol.

Indexed as

AlbuterolTobramycinAdministration, IntravenousBiomarkersBreath TestsCross-Over StudiesHumansAlbuterolBiomarkersTobramycinexhaled breath condensatelungpharmacokineticssalbutamoltobramycin

Identifiers

PMID31658494
PMCPMC6983506

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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.