Evidence map›Paper›PMID 26945929›Full record

Trial reportClinical and translational science2016

Efficiency of Ipratropium Bromide and Albuterol Deposition in the Lung Delivered via a Soft Mist Inhaler or Chlorofluorocarbon Metered-Dose Inhaler.

T R MacGregor, R ZuWallack, V Rubano, M A Castles, H Dewberry, M Ghafouri, C C Wood

Open access · goldAbstract readClinical Trial, Phase IIIMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Clinical and translational science, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact, top 99% 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

2 citing papers in PubMed, 3 citations in OpenAlex.

  1. Ipratropium bromide and noninvasive ventilation treatment for COPD.American journal of translational research · 2022
    Article
  2. 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

7 authors at 3 institutions in 3 countries.

T R MacGregorBoehringer Ingelheim Pharmaceuticals Inc, Ridgefield, Connecticut, USA.
R ZuWallackSt. Francis Hospital Medical Center, Hartford, Connecticut, USA.
V RubanoBoehringer Ingelheim Pharmaceuticals Inc, Ridgefield, Connecticut, USA.
M A CastlesBoehringer Ingelheim Pharmaceuticals Inc, Ridgefield, Connecticut, USA.
H DewberryBoehringer Ingelheim Ltd, Bracknell, Berkshire, UK.
M GhafouriBoehringer Ingelheim Pharmaceuticals Inc, Ridgefield, Connecticut, USA.
C C WoodBoehringer Ingelheim Pharmaceuticals Inc, Ridgefield, Connecticut, USA.
Boehringer Ingelheim (United States) · USBoehringer Ingelheim (United Kingdom) · GBSt. Francis Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The propellant-free Combivent Respimat Soft Mist Inhaler (CVT-R) was developed to replace the chlorofluorocarbon-propelled Combivent metered-dose inhaler (CVT-MDI). This steady-state pharmacokinetic (PK) substudy evaluated drug lung-delivery efficiency, using data from two phase III safety and efficacy trials. PK parameters were obtained from well-controlled population PK analyses. Area under the plasma concentration-time curve (AUC), maximum observed plasma concentration (C(max)), and minimum observed plasma concentration (C(min)) showed systemic exposure to ipratropium bromide and albuterol delivered via the CVT-R was proportional to ex-mouthpiece delivered dose. Although the labeled dose of ipratropium bromide in the CVT-R was half that in the CVT-MDI, the systemic exposure was comparable. No PK interaction for the ipratropium bromide and albuterol Respimat drug components was demonstrated. Ipratropium bromide alone resulted in similar exposure to the combination of ipratropium bromide and albuterol. These results show that CVT-R delivers drug more efficiently to the lung than CVT-MDI.

Indexed as

Metered Dose InhalersAdministration, InhalationAlbuterolChlorofluorocarbonsConfidence IntervalsFemaleHumansIpratropiumLungMaleTreatment OutcomeAlbuterolChlorofluorocarbonsIpratropium

Identifiers

PMID26945929
PMCPMC5351312
OpenAlexW2294436574

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.