Effectiveness of prophylactic inhaled steroids in childhood asthma: a systemic review of the literature

J Allergy Clin Immunol. 1997 Oct;100(4):452-7. doi: 10.1016/s0091-6749(97)70134-9.

Abstract

Background: There has been no systematic appraisal of the evidence regarding the effectiveness of prophylactic inhaled steroids in childhood asthma.

Objective: We sought to evaluate the effectiveness of prophylactic inhaled steroids in childhood asthma.

Methods: A MEDLINE search from January 1966 through December 1996 was used to identify pertinent English-language publications. All randomized, double-blind, placebo-controlled trials of prophylactic inhaled steroid therapy for childhood asthma that included data on clinical outcomes (symptom scores and concomitant drug use) or laboratory outcomes (peak expiratory flow rate) were included.

Results: In total, 24 of 93 studies retrieved met the inclusion criteria. The overall weighted relative improvement in mean total symptom score (inhaled steroid vs placebo) was 50% (95% confidence interval [CI]: 49%, 51%), the overall weighted relative decrease in mean concomitant beta2-agonist use (inhaled steroid vs placebo) was 37% (95% CI: 36%, 38%), and the overall weighted relative decrease in mean concomitant oral steroid use (inhaled steroid vs placebo) was 68% (95% CI: 66%, 70%). The overall weighted absolute improvement in mean peak expiratory flow rate (inhaled steroid vs placebo) was 38 L/min (95% CI: 34.3 L/min, 41.7 L/min).

Conclusions: Prophylactic inhaled steroids are effective, compared with placebo, in improving both clinical and laboratory outcomes in childhood asthma.

Publication types

  • Clinical Trial
  • Randomized Controlled Trial
  • Review

MeSH terms

  • Administration, Inhalation
  • Adrenal Cortex Hormones / adverse effects
  • Adrenal Cortex Hormones / therapeutic use*
  • Asthma / physiopathology
  • Asthma / prevention & control*
  • Child
  • Child, Preschool
  • Double-Blind Method
  • Female
  • Glucocorticoids / adverse effects
  • Glucocorticoids / therapeutic use*
  • Humans
  • Infant, Newborn
  • Male
  • Peak Expiratory Flow Rate / drug effects
  • Placebos

Substances

  • Adrenal Cortex Hormones
  • Glucocorticoids
  • Placebos