Evidence map›Paper›PMID 16995862›Full record

Trial reportBritish journal of clinical pharmacology2006

Plasma concentrations of inhaled corticosteroids in relation to airflow obstruction in asthma.

Kevin J Mortimer, Tim W Harrison, Yufei Tang, Kai Wu, Sarah Lewis, Srikumar Sahasranaman, Gunther Hochhaus, Anne E Tattersfield

Registry-linked trialOpen access · bronzeAbstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in British journal of clinical pharmacology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03691961 (Therapeutic Drug Monitoring of Corticosteroids/β2-agonists in Hair in Asthmatic Patients), which is not on this map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 11% 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.

NCT03691961 naunknown statusnot on this mapstarted 2018, after this paper: background citation

Therapeutic Drug Monitoring of Corticosteroids/β2-agonists in Hair in Asthmatic Patients: an Open-label Feasibility Study

TypeinterventionalSponsorHopital FochRan2018 to 2023Enrolled24ConditionsAsthmaArmsHair sampling, Hair's drug concentrations
3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 51 citations in OpenAlex.

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  14. From pharmacology to immunopharmacology.British journal of clinical pharmacology · 2006
    Article
  15. Severe asthma in children.The journal of allergy and clinical immunology. In practice
    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

8 authors at 2 institutions in 2 countries.

Kevin J MortimerDivision of Respiratory Medicine, Nottingham City Hospital, University of Nottingham, Nottingham, UK. kevinmortimer@msn.com
Tim W Harrison
Yufei Tang
Kai Wu
Sarah Lewis
Srikumar Sahasranaman
Gunther Hochhaus
Anne E Tattersfield
University of Florida · USUniversity of Nottingham · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsTo compare the pharmacokinetic profiles of beclometasone, budesonide, fluticasone and mometasone following inhalation in patients with asthma, and explore the relationship between lung function and plasma drug concentrations.

methodsThirty subjects with asthma and a forced expiratory volume in 1 s (FEV(1)) ranging from 36 to 138% predicted, inhaled 800 microg beclometasone, budesonide and mometasone and 1000 microg fluticasone in random order. Plasma drug concentrations were measured over 8 h and the relationship between the area under the plasma concentration-time curve (AUC(0-8)) and lung function was modelled using linear regression. Estimated AUC(0-8) values at 50 and 100% predicted FEV(1) were compared for each drug.

resultsPharmacokinetic profiles differed markedly between the drugs. Correlation coefficients for the relation between FEV(1)% predicted and AUC(0-8) values for beclometasone, budesonide, fluticasone and mometasone were 0.37 (P = 0.05), 0.33 (P = 0.08), 0.25 (P = 0.2) and 0.52 (P = 0.004), respectively, and estimated AUC(0-8) values were 1.3 [95% confidence interval (CI) 1.0, 1.8], 1.3 (95% CI 1.0, 1.8), 1.4 (95% CI 0.9, 2.2) and 2.2 (95% CI 1.3, 3.5) times higher for the four drugs, respectively, at 100 compared with 50% predicted FEV(1.)

conclusionThe higher plasma concentrations of inhaled corticosteroids in patients with a higher FEV(1)% predicted suggests that, for any given dose, these patients will be at greater risk of developing adverse systemic effects with long-term use.

Indexed as

Administration, InhalationAdolescentAdrenal Cortex HormonesAdultAgedAnti-Asthmatic AgentsArea Under CurveAsthmaBronchodilator AgentsFemaleForced Expiratory VolumeHumansMaleMiddle AgedVital CapacityAdrenal Cortex HormonesAnti-Asthmatic AgentsBronchodilator Agents

Identifiers

PMID16995862
PMCPMC1885155
OpenAlexW2049979738

What OpenQuestion holds

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Registered trials

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.