BACKGROUND: Poor adherence with inhaled corticosteroids is an important problem in asthma management. Previous approaches to improving adherence have had limited success. AIM: To determine whether treatment with a single inhaler containing a long-acting beta(2)-agonist and a corticosteroid for maintenance treatment and symptom relief can overcome the problem of poor adherence with inhaled corticosteroids. DESIGN OF STUDY: Randomised, parallel group, open-label trial. SETTING: Forty-four general practices in Nottinghamshire. METHOD: Participants who used less than 70% of their prescribed dose of inhaled corticosteroid and had poorly controlled asthma were randomised to budesonide 200 microg one puff twice daily plus their own short-acting beta(2)-agonist as required (control group), or budesonide/formoterol 200/6 microg one puff once daily and as required (active group) for 6 months. The primary outcome was inhaled corticosteroid dose. RESULTS:Seventy-one participants (35 control, 36 active group) were randomised. Adherence with budesonide in the control group was approximately 60% of the prescribed dose. Participants in the active group used approximately 80% more budesonide than participants in the control group (448 versus 252 microg/day, mean difference 196 mug, 95% confidence interval 113 to 279; P<0.001) and were less likely to withdraw from the study (3 versus 13; P<0.01). No safety issues were identified. CONCLUSION: Using a single inhaler for both maintenance treatment and symptom relief approximately doubled the dose of inhaled corticosteroid taken, suggesting this could be a useful strategy to overcome the problems related to poor adherence with inhaled corticosteroids.
RCT Entities:
BACKGROUND: Poor adherence with inhaled corticosteroids is an important problem in asthma management. Previous approaches to improving adherence have had limited success. AIM: To determine whether treatment with a single inhaler containing a long-acting beta(2)-agonist and a corticosteroid for maintenance treatment and symptom relief can overcome the problem of poor adherence with inhaled corticosteroids. DESIGN OF STUDY: Randomised, parallel group, open-label trial. SETTING: Forty-four general practices in Nottinghamshire. METHOD:Participants who used less than 70% of their prescribed dose of inhaled corticosteroid and had poorly controlled asthma were randomised to budesonide 200 microg one puff twice daily plus their own short-acting beta(2)-agonist as required (control group), or budesonide/formoterol 200/6 microg one puff once daily and as required (active group) for 6 months. The primary outcome was inhaled corticosteroid dose. RESULTS: Seventy-one participants (35 control, 36 active group) were randomised. Adherence with budesonide in the control group was approximately 60% of the prescribed dose. Participants in the active group used approximately 80% more budesonide than participants in the control group (448 versus 252 microg/day, mean difference 196 mug, 95% confidence interval 113 to 279; P<0.001) and were less likely to withdraw from the study (3 versus 13; P<0.01). No safety issues were identified. CONCLUSION: Using a single inhaler for both maintenance treatment and symptom relief approximately doubled the dose of inhaled corticosteroid taken, suggesting this could be a useful strategy to overcome the problems related to poor adherence with inhaled corticosteroids.
Authors: G B Diette; A W Wu; E A Skinner; L Markson; R D Clark; R C McDonald; J P Healy; M Huber; D M Steinwachs Journal: Arch Intern Med Date: 1999 Dec 13-27
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