Evidence map›Paper›PMID 20109122›Full record

Trial reportJournal of aerosol medicine and pulmonary drug delivery2010

Lung deposition of BDP/formoterol HFA pMDI in healthy volunteers, asthmatic, and COPD patients.

Wilfried De Backer, Annick Devolder, Gianluigi Poli, Daniela Acerbi, Raffaella Monno, Christiane Herpich, Knut Sommerer, Thomas Meyer, Fabrizia Mariotti

Registry-linked trialAbstract readClinical Trial
In one paragraph

Trial report in Journal of aerosol medicine and pulmonary drug delivery, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04421742 (The Effect of Beclomethasone/Formoterol in Extra-fine Formulation on Quality of Life and Dyspnea is Associated to the Improvement in Small Airway Dysfunction in COPD Patients. A Pilot Study), which is not on this map. Cited by 56 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 2 pooled it
–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.

NCT04421742 completednot on this mapstarted 2017, after this paper: background citation

The Effect of Beclomethasone/Formoterol in Extra-fine Formulation on Quality of Life and Dyspnea is Associated to the Improvement in Small Airway Dysfunction in COPD Patients. A Pilot Study (IOSCOPD20161102)

TypeobservationalSponsorAlfredo Antonio ChettaRan2017 to 2019Enrolled43ConditionsChronic Obstructive Pulmonary DiseaseArmsBeclomethasone Dipropionate/Formoterol Fumarate
3 · Its place in the literature

Who cites it

56 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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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

9 authors.

Wilfried De BackerUniversity Hospital Antwerp , Edegem, Belgium.
Annick Devolder
Gianluigi Poli
Daniela Acerbi
Raffaella Monno
Christiane Herpich
Knut Sommerer
Thomas Meyer
Fabrizia Mariotti

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWhen inhaling medication, it is essential that drug particles are delivered to all sites of lung inflammation, including the peripheral airways. The aim of this study was to assess the lung deposition and lung distribution of beclomethasone dipropionate (BDP)/formoterol (100/6 microg), both dissolved in hydrofluoroalkane (HFA) and delivered by pressurized metered dose inhaler (pMDI) in healthy subjects, asthmatic, and chronic obstructive pulmonary disease (COPD) patients, to investigate how the in vitro characteristics of the formulation translate into the in vivo performance in diseases with different airway obstruction.

methodsHealthy volunteers (n = 8), persistent asthmatics (n = 8), and patients with stable COPD (n = 8) completed this open-label, single-dose parallel-group study. Each patient received one single treatment of four puffs of (99 m)Tc-labeled BDP/formoterol formulation. The correlation between particle size distribution of radioactivity and of the drugs in the radiolabeled formulation was validated. Intra- and extrapulmonary deposition, amount of exhaled drug, and the central to peripheral ratio (C/P) were calculated immediately after inhalation. Patients' lung function and pharmacokinetic parameters were also assessed up to 24 h post-dose.

resultsThe average lung deposition of BDP/formoterol was 34.08 +/- 9.30% (relative to nominal dose) in healthy subjects, 30.86 +/- 8.89% in asthmatics, and 33.10 +/- 8.90% in COPD patients. Extrathoracic deposition was 53.48% +/- 8.95, 57.64% +/- 9.92 and 54.98% +/- 7.01, respectively. C/P ratios of 1.42 +/- 0.32 in healthy subjects, 1.96 +/- 0.43 in asthmatics, and 1.94 +/- 0.69 for COPD patients confirmed drug distribution to all regions of the lungs. Forced expiratory volume in 1 sec (FEV(1)) increased in all groups after BDP/formoterol inhalation, but was more evident in the patient groups. No significant correlation between baseline lung function and drug deposition was observed. Formoterol, BDP, and beclomethasone 17 monopropionate (B17MP) plasma profiles were comparable between groups.

conclusionInhalation of BDP/formoterol HFA (100/6 microg) produces high and homogeneous deposition of BDP and formoterol in the airways, regardless of pathophysiological condition.

Indexed as

Administration, InhalationAdultAgedAnti-Inflammatory AgentsAsthmaBeclomethasoneBronchodilator AgentsCase-Control StudiesDrug CombinationsEthanolaminesFemaleForced Expiratory VolumeFormoterol FumarateHumansLungMaleAnti-Inflammatory AgentsBeclomethasoneBronchodilator AgentsDrug CombinationsEthanolaminesFormoterol Fumarate

Identifiers

PMID20109122
PMCPMC3123836

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.