Abstract
BACKGROUND: Current evidence suggests that asthma patients with the ADRB2 Arg16 genotype have a poorer response to long-acting β2-agonists (LABA), but the results remain inconsistent.
AIM: This study assessed the association between Arg16 variants and treatment outcome in children treated with inhaled corticosteroids (ICS) and LABA.
MATERIALS & METHODS: ADRB2 Arg16 was genotyped in 597 children (4-12 years of age) participating in the PACMAN cohort study. A questionnaire was used to assess asthma control, frequency of asthma-related emergency department visits and use of oral corticosteroids in the past year.
RESULTS: Arg/Arg carriers with a reported use of ICS and LABA had an increased risk of oral corticosteroid use (odds ratio: 14.9; 95% CI: 1.59-140.1) and emergency department visits in the past year (odds ratio: 11.9; 95% CI: 1.22-115.8) compared to Gly/Gly carriers. This effect was not observed in Arg/Arg genotype carriers reporting ICS use only.
CONCLUSION: Children who are homozygous for ADRB2 Arg16 have an increased risk of exacerbations when treated with combined LABA and ICS.
Original language | English |
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Pages (from-to) | 1965-71 |
Number of pages | 7 |
Journal | Pharmacogenomics |
Volume | 14 |
Issue number | 16 |
DOIs | |
Publication status | Published - Dec 2013 |
Keywords
- Administration, Inhalation
- Adrenal Cortex Hormones
- Adrenergic beta-2 Receptor Agonists
- Anti-Asthmatic Agents
- Asthma
- Child
- Child, Preschool
- Female
- Genotype
- Homozygote
- Humans
- Male
- Receptors, Adrenergic, beta-2
- Risk Factors
- Treatment Outcome