ArticleRespiratory research2014
Nebulized perflubron and carbon dioxide rapidly dilate constricted airways in an ovine model of allergic asthma.
Article in Respiratory research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 4 registered trials, which are not on this map. Cited by 6 papers.
What it found
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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.
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.
Phase IIa, Placebo-controlled, Randomized, Double-blind, Crossover Single Dose Study to Evaluate the Safety, Tolerability and Efficacy of S-1226 (8%) Administered by Nebulization in Subjects With Mild Atopic Asthma.
A Phase IIa Open Label Study to Evaluate the Safety, Tolerability and Efficacy of S-1226 Administered by Nebulization in Subjects With Mild to Moderate Cystic Fibrosis and Non CF Bronchiectasis
A Randomized, Open-Label, Controlled, Phase II Study to Evaluate the Safety, Tolerability and Efficacy Of S-1226 In Hospitalized Subjects With Moderate Severity Covid-19 Bronchiolitis/Pneumonia
A Randomized, Placebo-Controlled Phase II Study To Evaluate The Safety, Tolerability And Efficacy Of S-1226 In Post-Covid-19 Subjects With Persistent Respiratory Symptoms.
Who cites it
6 citing papers in PubMed, 13 citations in OpenAlex.
- Trial
- Trial
- Carbon dioxide and MAPK signalling: towards therapy for inflammation.Cell communication and signaling : CCS · 2023Review
- Asthmatic allergen inhalation sensitises carotid bodies to lysophosphatidic acid.Journal of neuroinflammation · 2021Article
- Humidified Warmed COFrontiers in medicine · 2020Article
- Variability of the Sheep Lung Microbiota.Applied and environmental microbiology · 2016Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe low toxicity of perfluorocarbons (PFCs), their high affinity for respiratory gases and their compatibility with lung surfactant have made them useful candidates for treating respiratory diseases such as adult respiratory distress syndrome. We report results for treating acute allergic and non-allergic bronchoconstriction in sheep using S-1226 (a gas mixture containing carbon dioxide and small volumes of nebulized perflubron). The carbon dioxide, which is highly soluble in perflubron, was used to relax airway smooth muscle.
methodsSheep previously sensitized to house dust mite (HDM) were challenged with HDM aerosols to induce early asthmatic responses. At the maximal responses (characterised by an increase in lung resistance), the sheep were either not treated or treated with one of the following; nebulized S-1226 (perflubron + 12% CO2), nebulized perflubron + medical air, 12% CO2, salbutamol or medical air. Lung resistance was monitored for up to 20 minutes after cessation of treatment.
resultsTreatment with S-1226 for 2 minutes following HDM challenge resulted in a more rapid, more profound and more prolonged decline in lung resistance compared with the other treatment interventions. Video bronchoscopy showed an immediate and complete (within 5 seconds) re-opening of MCh-constricted airways following treatment with S-1226.
conclusionsS-1226 is a potent and rapid formulation for re-opening constricted airways. Its mechanism(s) of action are unknown. The formulation has potential as a rescue treatment for acute severe asthma.
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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.