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Published on: November 4, 2010
A randomized, double-blind trial of the effect of anti-asthma treatment on lung function in children with asthma
Iwona Stelmach1, Tomasz Grzelewski, Monika Bobrowska-Korzeniowska
1Department of Pediatrics and Allergy, N Copernicus Hospital, Lodz, Poland. alergol@kopernik.lodz.pl
Insights
Combination asthma treatments significantly improved lung function in children. Using multiple pulmonary function tests (PFTs) provides a better assessment of treatment effectiveness than single measures.
Area of Science:
- Pediatric Pulmonology
- Respiratory Medicine
- Clinical Pharmacology
Background:
- Pulmonary function tests (PFTs), particularly spirometry, are vital for assessing early treatment response in pediatric asthma due to their accessibility.
- Asthma management in children requires effective monitoring tools to evaluate therapeutic interventions.
Purpose of the Study:
- To determine the effects of various anti-asthma treatments on key pulmonary function parameters in children.
- To compare the efficacy of monotherapy versus combination therapy in improving lung function.
Main Methods:
- A 4-week, double-blind, placebo-controlled trial involving children aged 6-18 with moderate atopic asthma.
- Randomized allocation to budesonide (B), montelukast (M), budesonide + montelukast (BM), budesonide + formoterol (BF), or placebo.
- Measurement of FEV(1), FEF25-75%, R(int), and SR(aw) before and after treatment.
Main Results:
- Significant improvements in R(int), SR(aw), and FEV(1) were observed across all active treatment groups.
- FEF25-75% showed significant improvement only in the budesonide + montelukast (BM) and montelukast (M) groups.
- Combination therapies (BM and BF) demonstrated superior effects on R(int) compared to monotherapies (B or M).
Conclusions:
- Relying on a single pulmonary function parameter for asthma monitoring can be misleading.
- Employing a combination of lung function techniques offers a more comprehensive assessment of treatment efficacy.
- Combined anti-inflammatory therapy yielded the most significant improvements in both large and small airways.
Background:
Pulmonary function tests (PFTs) and especially spirometry measures are useful tools in evaluating early response to treatment of asthma in children mainly due to their worldwide availability. The aim of our study was to determine the effects of anti-asthma treatment in children, equally on FEV(1), FEF25-75%, R(int) and SR(aw) values.
Methods:
Children 6-18 years of age with moderate atopic asthma were randomized to 4-week, placebo-controlled, double-blind trial. Patients were randomly allocated to receive 200 microg budesonide (B) (n=29), 5 or 10 mg (according to age) montelukast (M) (n=29), 200 microg B + 5 or 10 mg M (n=29), 200 microg B + 9 microg formoterol (F) (n=29) or placebo (n=27). FEV(1,) FEF25-75%, R(int), SR(aw) were measured before and after treatment.
Results:
R(int), SR(aw), FEV(1) improved significantly in all active treatment groups while FEF25-75% improved significantly only in BM group and M group. Combination therapy, showed significantly greater effects on R(int) than monotherapy: BM group compared to B group (P=0.01) and M group (P=0.03) and BF group compared to B group (P=0.01) and M group (P=0.04).
Conclusion:
This study shows that using single parameter for monitoring asthma can be misleading. Using combination of lung function techniques provides better assessment of treatment. Results of our study confirm this hypothesis. The best effect on large and small airways was achieved with combined anti-inflammatory therapy.
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