An observational study in Allergic Rhinitis, sponsored by ALK-Abelló A/S. Recruiting at 1 site in Denmark. Open to participants aged 5 Years to 12 Years. Per ClinicalTrials.gov, last updated 2023-05-31.
Sponsored by ALK-Abelló A/S · Observational
The study will assess the the burden of living with allergic rhinitis (AR) and the effect of AR on school performance for children and adolescents in Denmark.
The aim of the study is to investigate the effect of AR on school performance and examination test grades for children and adolescents diagnosed with AR early in life, as well as analyse their burden of disease and healthcare resource use using real-world data from the exhaustive Danish population registers. This is a retrospective registry analysis that uses Danish registers during 1994 and 2021.
In Denmark, national registers collect data for the entire Danish population from birth to death and have done so for decades. This exhaustive data creates a sound foundation for this study of the impact of school performance caused by AR, as subjects can be traced with high certainty and detail over several years.
717 studies on the registry are indexed under Rhinitis, Allergic; 94 are open to participants now.
This study's planned enrollment of 150,000 is above the median of 120 across 143 observational studies indexed under Rhinitis, Allergic.
Browse Rhinitis, Allergic studies →ALK-Abelló A/S is the lead sponsor of 67 studies on the registry; 2 are open to participants now.
Counted across the registry records on this site, refreshed daily.
children who have been diagnosed with AR before turning 13
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
At least two dispensed prescriptions of product containing intranasal (INCS) or antihistamines during the same calendar year for two consecutive years OR at least one visit with the primary healthcare sector with registered AR consultations AND at least one dispensed prescriptions of product containing INCS or antihistamines OR at least one contact with the hospital sector with an ICD-10 code for AR (primary or secondary diagnosis).
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Corticosteroids (steroids)
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The primary study population will consist of subjects with AR
Other: Observational
children with no history of AR
siblings of the subjects in the case group with no history of AR
Impact of AR on educational outcomes
Primary school final examination test grades (oral and written) in: Language (Danish, English), Mathematics Obtained high school degree Obtained university degree
Test grades
Time frame: 1994-2021
Cost of inpatient and outpatient hospitalisation
Cost in DKK
Time frame: 1994-2021
Cost of prescription medicine
Cost in DKK
Time frame: 1994-2021
Number of inpatient and outpatient visits
The number of inpatient/outpatients visits per year.
Time frame: 1994-2021
Plan to share: Undecided
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