title: Efficacy and safety of inhaled fluticasone propionate chlorofluorocarbon in 2- to 4-year-old patients with asthma: results of a double-blind, placebo-controlled study.
abstract: BACKGROUND
  Current asthma guidelines recommend inhaled glucocorticoids administered via pressurized metered-dose inhaler (MDI) with a holding chamber as the preferred therapy for young children with asthma.
  
  
  OBJECTIVE
  To evaluate the efficacy and safety of fluticasone propionate chlorofluorocarbon MDI use in preschool-aged children with asthma.
  
  
  METHODS
  Randomized, double-blind, placebo-controlled, parallel-group study of 332 children aged 24 to 47 months with asthma. Fluticasone propionate chlorofluorocarbon, 44 or 88 microg twice daily, or placebo (chlorofluorocarbon propellant alone) administered for 12 weeks via MDI with a valved holding chamber and an attached face mask. The primary efficacy measure was average change in 24-hour daily asthma symptom scores. Safety assessments included adverse events, 12-hour urinary cortisol excretion, and growth.
  
  
  RESULTS
  Treatment failure (ie, asthma exacerbation) occurred in approximately half as many fluticasone propionate-treated patients (13%-14%) as placebo-treated patients (24%). Compared with placebo users, patients treated with fluticasone propionate, 88 microg twice daily, had a 13% greater improvement in the mean proportion of symptom- and albuterol-free days (P = .02); asthma symptom scores and albuterol use were also significantly reduced. Patients treated with fluticasone propionate, 44 microg twice daily, had greater improvements than placebo-treated patients; however, differences did not reach statistical significance. At end point, the growth velocities of fluticasone propionate-treated patients were within the range of those of placebo-treated patients. No clinically relevant changes in 12-hour overnight urinary cortisol excretion were observed.
  
  
  CONCLUSIONS
  Compared with placebo use, fluticasone propionate, 88 microg administered twice daily, significantly reduced asthma exacerbations, asthma symptoms, and rescue albuterol use and was well tolerated, with no clinically relevant systemic effects, as measured by growth velocity or 12-hour urinary cortisol excretion levels.
authors.affiliation: Pediatric Allergy/Immunology Associates PA, Dallas, Texas 75230, USA. richw3@swbell.net
authors.forename: Richard L
authors.initials: RL
authors.lastname: Wasserman
authors.forename: James W
authors.initials: JW
authors.lastname: Baker
authors.forename: Kenneth T
authors.initials: KT
authors.lastname: Kim
authors.forename: Kathryn V
authors.initials: KV
authors.lastname: Blake
authors.forename: Catherine A
authors.initials: CA
authors.lastname: Scott
authors.forename: Wei
authors.initials: W
authors.lastname: Wu
authors.forename: Melissa A
authors.initials: MA
authors.lastname: Faris
authors.forename: Courtney
authors.initials: C
authors.lastname: Crim
mesh_terms: D000420:Albuterol / Q000627:therapeutic use; D000730:Androstadienes / Q000008:administration & dosage* / Q000009:adverse effects / Q000097:blood / Q000493:pharmacokinetics; D018927:Anti-Asthmatic Agents / Q000008:administration & dosage* / Q000009:adverse effects / Q000097:blood / Q000493:pharmacokinetics; D001249:Asthma / Q000188:drug therapy* / Q000378:metabolism; D001827:Body Height / Q000187:drug effects; D001993:Bronchodilator Agents / Q000627:therapeutic use; D002675:Child, Preschool; D004311:Double-Blind Method; D005260:Female; D000068298:Fluticasone; D006801:Humans; D008297:Male; D036501:Metered Dose Inhalers; D010366:Peak Expiratory Flow Rate / Q000187:drug effects
chemical_list: D000730:Androstadienes; D018927:Anti-Asthmatic Agents; D001993:Bronchodilator Agents; D000068298:Fluticasone; D000420:Albuterol