Asthma
Conditions
Keywords
fluticasone, asthma therapy, spacer inhaler, HFA-134a
Brief summary
To compare lung delivery of fluticasone propionate delivered by HFA-pMDI, using a conventional polycarbonate of anti-static chamber/mask in a randomized crossover design in 1-6 year old children. Hypothesis: Anti-static chamber/mask would increase the amount of inhaled corticosteroid delivered to young children who passively inhale and cannot breath hold.
Detailed description
Objective -- to determine whether an anti-static chamber increases the one-hour steady-state fluticasone plasma concentration, which is an indirect measure of airway delivery and direct measure of systemic exposure. Twelve children 1-6 yrs with well-controlled persistent asthma were treated with HFA-FP pMDI, 2 actuations of 110 µg twice daily. The drug was administered by conventional polycarbonate or anti-static valved-holding chambers with masks in an unblinded, randomized, crossover manner each for at least three days. A blood sample was collected one hour after the last dose when adherence documented by electronic monitor was 100%. FP plasma concentrations were measured by liquid chromatography mass spectrometry assay. Results evaluated using regression analysis.
Interventions
Sponsors
Study design
Eligibility
Inclusion criteria
* children 1-6 years old; adequately controlled persistent asthma; currently receiving FP delivered by CFC MDI attached to valved-holding chamber/mask; ability to use chamber with mask effectively
Exclusion criteria
* inadequately controlled asthma: nocturnal awakening \> 2 nights/month, prn albuterol use \> 2x/week, more than 2 short courses of oral corticosteroids in previous 3 months, missing a dose on more than one occasion, increase in asthma symptoms during study, inability to discontinue intranasal or dermal fluticasone for 3 days
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| one-hour steady-state plasma concentration of fluticasone after each device | — |
Countries
United States