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P S Burge a Department of Respiratory Medicine,
Birmingham Heartlands Hospital, Birmingham B9 5SS, b Department of
Medicine, University Hospital Aintree, Liverpool L9 7AL, c Department of Physiological Medicine, St George's
Hospital Medical School, London SW17 0RE, d GlaxoWellcome Research and
Development, Stockley Park West, Uxbridge, Middlesex UB11 1BT
Correspondence to:
P S Burge burgeps{at}aol.com
Objectives:
To determine the effect of long term
inhaled corticosteroids on lung function, exacerbations, and health
status in patients with moderate to severe chronic obstructive
pulmonary disease.
Design:
Double blind, placebo controlled study.
Setting:
Eighteen UK hospitals.
Participants:
751 men and women aged between 40 and 75 years with mean forced expiratory volume in one second
(FEV1) 50% of predicted normal.
Interventions:
Inhaled fluticasone propionate 500 µg
twice daily from a metered dose inhaler or identical placebo.
Main outcome measures:
Efficacy measures: rate of
decline in FEV1 after the bronchodilator and in health
status, frequency of exacerbations, respiratory withdrawals. Safety
measures: morning serum cortisol concentration, incidence of adverse events.
Results:
There was no significant difference in the annual rate of decline in FEV1 (P=0.16). Mean
FEV1 after bronchodilator remained significantly higher
throughout the study with fluticasone propionate compared with placebo
(P<0.001). Median exacerbation rate was reduced by 25% from 1.32 a
year on placebo to 0.99 a year on with fluticasone propionate
(P=0.026). Health status deteriorated by 3.2 units a year on placebo
and 2.0 units a year on fluticasone propionate (P=0.0043). Withdrawals
because of respiratory disease not related to malignancy were higher in
the placebo group (25% v 19%, P=0.034).
Conclusions:
Fluticasone propionate 500 µg twice
daily did not affect the rate of decline in FEV1
but did produce a small increase in FEV1.
Patients on fluticasone propionate had fewer exacerbations and a slower
decline in health status. These improvements in clinical outcomes
support the use of this treatment in patients with moderate to severe
chronic obstructive pulmonary disease.
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