The effect of beclomethasone dipropionate in ultrafine particles on bronchial hyper-reactivity in young children

Claudia L. Costa-Katz, Galit Livnat, Fahed Hakim, Daphna Vilozni, Yedidia Bentur, Lea Bentur

Research output: Contribution to journalArticlepeer-review

Abstract

Aim: Bronchial hyper-reactivity (BHR) provides a tool for asthma diagnosis, assessment of severity and response to treatment. The effect of beclomethasone dipropionate in ultrafine particles (BDP-HFA) on BHR as measured by the adenosine challenge test in young children has not yet been determined. Our aim was to determine the effect of BDP-HFA (100 μg twice daily) on BHR as evaluated by a reduction of 20% from baseline FEV1 (PC20-FEV1) values in young asthmatic children. Methods: Twenty-one young children (13 males), mean age 4.95 ± 1.05 years, with partially controlled or controlled asthma completed a double-blind randomized, placebo-controlled, cross-over study. Each child received 4 weeks of treatment with either 100 μg BDP-HFA twice daily or placebo, and after a 2-week washout period the other way around. Primary outcomes were PC20-FEV1 concentration, and the stage number at which FEV1 values dropped by 20%. Results: Following 4 weeks of treatment, median PC20-FEV1 was 81.28 mg/mL while on BDP-HFA, compared with 9.64 mg/mL on placebo (p < 0.001). The median increase in stages required to achieve PC20 on BDP-HFA compared with placebo was three (95% CI 2.28-4.86). Conclusion: Four weeks of treatment with BDP-HFA resulted in significantly decreased BHR in young children.

Original languageEnglish
Pages (from-to)e219-e224
JournalActa Paediatrica, International Journal of Paediatrics
Volume101
Issue number5
DOIs
StatePublished - May 2012
Externally publishedYes

Keywords

  • Adenosine 5-monophosphate
  • Asthma
  • Beclomethasone dipropionate
  • Bronchial hyper-reactivity
  • Bronchial provocation
  • Ultrafine particle

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