Randomised, double-blind, placebo controlled study of fluticasone propionate in patients with moderate to severe chronic obstructive pulmonary disease: the ISOLDE trial study

PS Burge, PMA Calverley, PW Jones, Sally Spencer, JA Anderson, TK Maslen

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Abstract

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 ìg 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% v19%, P = 0.034). Conclusions Fluticasone propionate 500 ìg 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.
Original languageEnglish
Pages (from-to)1297-1303
JournalBritish Medical Journal (BMJ)
Volume320
DOIs
Publication statusPublished - 2000

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