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  • Title: A randomized, double-blind comparison of beclomethasone dipropionate extrafine aerosol and fluticasone propionate.
    Author: Fairfax A, Hall I, Spelman R.
    Journal: Ann Allergy Asthma Immunol; 2001 May; 86(5):575-82. PubMed ID: 11379810.
    Abstract:
    BACKGROUND: Inhaled corticosteroids provide first-line treatment for asthma. An advance to improve potency was to produce new molecules with increased glucocorticoid receptor affinity (eg, fluticasone propionate [FP]). An alternative is to deliver more medication to both the large and small airway inflammation of asthma by using an extrafine aerosol (eg, beclomethasone dipropionate extrafine aerosol [BDP-extrafinel). OBJECTIVE: To demonstrate clinical equivalence of BDP-extrafine (400 microg daily) and FP (400 microg daily) in symptomatic asthmatic patients over the course of 6 weeks. METHODS: This was a double-blind, double-dummy, parallel-group, multicenter, 6-week study in adults with asthma taking conventional FP 100 to 250 microg daily or equivalent, and displaying signs/symptoms of active disease requiring additional therapy. RESULTS: Eighty-eight patients were randomized to BDP-extrafine (and FP-placebo) and 84 to FP (and BDP-placebo). There were no significant differences between treatments with respect to symptom control, as evidenced by mean change from baseline in percentage days without asthma symptoms/nights without sleep disturbance observed at weeks 1 to 2, 3 to 4, or 5 to 6. Mean changes from baseline in AM PEFR at weeks 5 to 6 for BDP-extrafine (19.0) and FP (30.5) were equivalent (P = 0.022 for equivalence). There were significant (P < 0.001) within-treatment-group differences in mean change from baseline in AM PEFR at weeks 1 to 2 for both treatments. There was no difference in the incidence of patients reporting at least one adverse event during the study (BDP-extrafine 41%; FP 37%). Mean percentage change from baseline for AM plasma cortisol at week 6 was + 17.7% for BDP-extrafine and +4.2% for FP (P = 0.066 for difference). CONCLUSIONS: BDP-extrafine and FP at doses of 400 microg daily provided equivalent asthma control in patients with symptomatic asthma and exhibited similar safety profiles.
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