Evidence map›Paper›PMID 22300506›Full record

Trial reportRespiratory research2012

Is low dose inhaled corticosteroid therapy as effective for inflammation and remodeling in asthma? A randomized, parallel group study.

Melissa Baraket, Brian G G Oliver, Janette K Burgess, Sam Lim, Gregory G King, Judith L Black

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Respiratory research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 10% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 52 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Runx2 Regulated Airway Homeostasis Is Disrupted in Asthma.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
    Article
  4. Aging, brain-derived neurotrophic factor, and allergen-induced pulmonary responses in mice.American journal of physiology. Lung cellular and molecular physiology · 2025
    Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Implications of preexisting asthma on COVID-19 pathogenesis.American journal of physiology. Lung cellular and molecular physiology · 2021
    Review
  13. Article
  14. Article
  15. Review
  16. COVID-19 and Asthma: Reflection During the Pandemic.Clinical reviews in allergy & immunology · 2020
    Review
  17. Article
  18. Review
  19. Article
  20. 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

6 authors at 3 institutions in 1 country.

Melissa BaraketWoolcock Institute of Medical Research, Sydney, NSW, Australia. melissa.baraket@sswahs.nsw.gov.au
Brian G G Oliver
Janette K Burgess
Sam Lim
Gregory G King
Judith L Black
Woolcock Institute of Medical Research · AUAnzac Research Institute · AUUniversity of Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWhile most of the clinical benefits of inhaled corticosteroid (ICS) therapy may occur at low doses, results of dose-ranging studies are inconsistent. Although symptom/lung function response to low and high dose ICS medication is comparable, it is uncertain whether low dose ICSs are as effective as high dose in the treatment of inflammation and remodeling.

methods22 mild or moderate asthmatic adult subjects (corticosteroid free for > 2 months) participated in a randomized, parallel group study to compare effects of fluticasone propionate (FP) 200 mcg/day and 1000 mcg/day. Alveolar macrophage (AM)-derived cytokines and basement membrane thickness (BMT) were measured at baseline and after 7 weeks treatment while symptoms, spirometry, exhaled nitric oxide (eNO) and airway hyperresponsiveness (AHR) to mannitol at baseline and 6 weeks.

resultsFP improved spirometry, eNO, symptoms and AHR with no difference between low and high dose FP. Both high and low dose FP reduced GM-CSF, TNF-alpha and IL-1ra, with no change in BMT and with no differences between low and high dose FP.

conclusions200 μg/day of FP was as effective as 1000 μg/day in improving asthma control, airway inflammation, lung function and AHR in adults in the short term. Future studies should examine potential differential effects between low and high dose combination therapy (ICS/long acting beta agonist) on inflammation and airway remodeling over longer treatment periods.

Indexed as

Administration, InhalationAdolescentAdultAirway RemodelingAndrostadienesAnti-Asthmatic AgentsAsthmaBasement MembraneBreath TestsCytokinesFemaleFluticasoneHumansInflammationLungMacrophages, AlveolarAndrostadienesAnti-Asthmatic AgentsCytokinesFluticasoneMannitolNitric Oxide

Identifiers

PMID22300506
PMCPMC3296667
OpenAlexW2102739294

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.