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[Prospective observational study of clinical course after stopping inhaled corticosteroids in child asthma]
Akira Akasawa1, Tomoko Suda, Masayuki Akashi
1Department of Interdisciplinary Medicine, National Center for Child Health and Development, Japan. akasawa-a@ncchd.go.jp
Insights
Most children with asthma can stop inhaled corticosteroids (ICS) if well-controlled. This study found over 80% remained symptom-free after stopping ICS, indicating successful asthma management.
Area of Science:
- Pediatric Pulmonology
- Allergy and Immunology
- Clinical Therapeutics
Context:
- Asthma management in children often involves inhaled corticosteroids (ICS).
- Determining criteria for safely discontinuing ICS is crucial for long-term patient care.
- Predicting outcomes after ICS cessation requires understanding clinical and immunological factors.
Purpose:
- To evaluate the clinical course and identify predictors of outcome after stopping inhaled corticosteroids (ICS) in children with asthma.
- To assess the feasibility of ICS withdrawal in children achieving complete asthma control.
Summary:
- A prospective study followed 112 children with asthma, controlled on 100 microg/day ICS, who met methacholine challenge test (MCT) criteria (PC20 > 0.5 mg/mL) for ICS cessation.
- After stopping ICS, 81% of 63 children followed for 24 months remained symptom-free with stable lung function.
- Factors like duration of ICS use and baseline plasma IgE levels influenced outcomes, with lower IgE and shorter ICS duration associated with sustained remission.
Impact:
- This research suggests that a significant majority of well-controlled asthmatic children can successfully discontinue ICS therapy.
- Identifying specific clinical indices can help guide personalized treatment decisions for ICS withdrawal in pediatric asthma.
- The findings support a potential shift towards de-escalation of therapy in select pediatric asthma populations, improving quality of life and reducing long-term medication burden.
Background:
Prospective study was carried out to observe the clinical course and find out the clinical index to predict the outcome after stopping of inhaled corticosteroids (ICS).
Subjects:
One hundred twelve asthmatic children (aged 12.9+/-9.6 years old) who were totally controlled with 100 microg/day of inhaled corticosteroids and have not experienced asthma symptom over 3 months, were enrolled.
Methods:
Patients with over PC20 0.5 mg/mL of methacholine challenge test (MCT) were recommended to stop ICS therapy. Clinical course, lung function and bronchial hyperreactivity were followed at 7, 16 and 24 months after stopping of ICS.
Results:
Eighty-one percent of 63 patients followed up to 24 months run on as symptom less than one time per month without remarkable change of lung function. PC20 in group of no asthma symptom during 24 months (group A) decreased weakly. That of other groups decreased remarkably. Days using ICS and plasma IgE antibody at stopping of ICS were different in clinical course at 24 months after stopping ICS.
Conclusion:
Over 80% of totally controlled asthmatic children with MCT PC20 over 0.5 mg/mL could stop ICS therapy and run on without relapse.
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