Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2004-10-14
pubmed:abstractText
Inhaled corticosteroids (ICSs) are the gold standard anti-inflammatory therapy for asthma and have been studied using a variety of different clinical trial designs. In long-term comparative studies ICSs are more effective in controlling asthma than beta-agonists or leukotriene antagonists (LTAs). Efficacy has also been shown retrospectively, as patients frequently experience an exacerbation of their asthma upon withdrawal of ICSs, whilst the regular use of low dose ICSs prevents death from asthma. The combination of ICSs with long-acting beta2-agonists (LABAs) is effective for patients with asthma non-responsive to low doses of ICSs, particularly in reducing exacerbations. In shorter term studies a modest dose-response effect of ICSs has been shown for lung function, symptom control and oral corticosteroid use in asthmatic patients. ICSs are also effective in reducing airway hyperresponsiveness (AHR) to various stimuli, as well as reducing exhaled nitric oxide (NO) concentrations and the number and activation state of a wide variety of inflammatory cells. Finally, using allergen challenge models even single doses of ICSs have profound inhibitory effects on the late asthmatic reaction. Since ICSs are the mainstay of asthma management guidelines, it is important that novel therapies should be judged against ICSs in future clinical trials. There are many potential designs for these comparative studies.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0954-6111
pubmed:author
pubmed:issnType
Print
pubmed:volume
98 Suppl B
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
S9-15
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
How do we measure the effectiveness of inhaled corticosteroids in clinical studies?
pubmed:affiliation
Clinical Studies Unit, National Heart & Lung Institute, Royal Brompton Hospital, Imperial College School of Medicine, Dovehouse Street, London SW3 6LY, UK. t.hansel@ic.ac.uk
pubmed:publicationType
Journal Article, Review