Healthy Subjects Clinical Trial
Official title:
A Pilot Monocenter Study to Assess the Reproducibility and Specificity of Cellular and Soluble Biomarkers in Nasal Secretions in Patients With Allergic Rhinitis and Healthy Volunteers Following Pollen Exposure in the Fraunhofer Environmental Challenge Chamber (ECC)
Allergic Rhinitis is an inflammatory disease which causes an influx of inflammatory cells
and cytokines into the nasal mucosa. These biomarkers can also be found in the nasal
secretions. The evaluation of these inflammatory biomarkers is of great interest as this
could lead to a concept of measuring the efficacy of anti-allergic treatments by assessing
the changes in nasal biomarkers after allergen challenge. To use this model as an assessment
of pharmacodynamics it is crucial to evaluate the specificity and reproducibility of
cellular and cytokine levels in the nasal secretions after allergen provocations.
In a 2 part repeated measurement design 20 patients with allergic rhinitis and 20 healthy
subjects will undergo two 4-hour pollen exposures in an interval of 21 days.
The aim of this study is to explore the cellular and cytokine levels this allergen challenge
will induce in nasal secretions and to assess if an increase in those inflammatory
biomarkers is specific to the patient subgroup and whether the results are reproducible
after the second allergen challenge.
n/a
Primary Purpose: Screening, Time Perspective: Cross-Sectional
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