title: Efficacy and safety of a new pressurised metered-dose inhaler formulation of budesonide/formoterol in children with asthma: a superiority and therapeutic equivalence study.
abstract: OBJECTIVE
  This paediatric asthma study evaluated the efficacy and safety of a novel hydrofluoroalkane pressurised metered-dose inhaler (pMDI) formulation of budesonide/formoterol versus budesonide pMDI and budesonide/formoterol dry-powder inhaler (DPI).
  
  
  METHODS
  The study was a 12-week, multinational, double-blind trial involving children (aged 6-11 years) with symptomatic asthma on inhaled corticosteroids (375-1000 microg/day), with a history of exercise-induced bronchoconstriction and peak expiratory flow (PEF) > or =50% of predicted. Patients were randomised (two inhalations twice daily) to budesonide pMDI 100 microg, budesonide/formoterol DPI 80/4.5 microg or budesonide/formoterol pMDI 80/4.5 microg. The primary endpoint was change from baseline in morning PEF.
  
  
  RESULTS
  Overall, 622 patients were randomised. Increases in morning PEF with budesonide/formoterol pMDI and budesonide/formoterol DPI were therapeutically equivalent (29.5 versus 30.2l/min, respectively; 95% confidence interval: -6.0 to 4.6; P=0.78, also confirmed by per-protocol analysis). Improvements in secondary efficacy endpoints with both budesonide/formoterol formulations were not significantly different. Significantly greater improvement was achieved with budesonide/formoterol pMDI versus budesonide pMDI for morning PEF (+9.6l/min; P<0.001) and other lung function parameters. The safety profile of budesonide/formoterol pMDI was favourable and similar to that of budesonide/formoterol DPI and budesonide pMDI.
  
  
  CONCLUSIONS
  Budesonide/formoterol, administered via the therapeutically equivalent hydrofluoroalkane pMDI or DPI, is an effective and well-tolerated treatment for children with asthma.
authors: Respiratory Medicine, University of Hull, East Yorkshire, UK. a.h.morice@hull.ac.uk <a.h.morice@hull.ac.uk>
authors: Alyn H
authors: AH
authors: Morice
authors: Stefan
authors: S
authors: Peterson
authors: Ola
authors: O
authors: Beckman
authors: Zuzana
authors: Z
authors: Kukova
mesh_terms: D000305:Adrenal Cortex Hormones / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D018927:Anti-Asthmatic Agents / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D001249:Asthma / Q000188:drug therapy*; D019819:Budesonide / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D000069502:Budesonide, Formoterol Fumarate Drug Combination; D002648:Child; D004311:Double-Blind Method; D004338:Drug Combinations; D004983:Ethanolamines / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D006854:Hydrocortisone / Q000097:blood / Q000652:urine; D008297:Male; D009330:Nebulizers and Vaporizers; D012129:Respiratory Function Tests; D013810:Therapeutic Equivalency
chemical_list: D000305:Adrenal Cortex Hormones; D018927:Anti-Asthmatic Agents; D000069502:Budesonide, Formoterol Fumarate Drug Combination; D004338:Drug Combinations; D004983:Ethanolamines; D019819:Budesonide; D006854:Hydrocortisone