Pharmacogenetics of anti-inflammatory treatment in children with asthma: rationale and design of the PACMAN cohort

Aims: To investigate the effects of genetic variation on treatment response to asthma medication in children and to identify (profiles of) SNPs that characterize response phenotypes. Material & methods: The Pharmacogenetics of Asthma medication in Children: Medication with Anti-inflammatory effects (PACMAN) study was initiated in April 2009 as an observational retrospective pharmacy-based study, including at least 1000 children with asthma medication (aged 4–12 years). Data on respiratory symptoms and medication use behavior will be collected using a questionnaire; complete medication histories will be extracted from the pharmacy information system; additional health information will be requested from the general practitioner; quality of inhalation technique and lung function measurements will be performed and saliva samples for DNA extraction and genotyping will be collected. Two groups of patients will be defined based on questionnaire data and lung function measurements: responders and nonresponders to...