2.2 Study design
This is a non-interventional, prospective, multi-center, observational
study. Data were collected and recorded during three patient visits and
one phone consultation. The first visit included on-site administration
of HDM SLIT-tablet and collection of baseline characteristics. An
interview by phone followed a week later. The second visit followed
three months and the final visit 1 year after the initial visit,
respectively. During each visit the allergic symptoms, Control of
Allergic Rhinitis and Asthma Test (CARAT) questionnaire, (change in)
concomitant medication, lung function measurements (only if indicated
according to the treating physician) and safety evaluations (AEs/SAEs)
were recorded.