Immunological Mechanisms Underlying Mucosal IgE Responses
Recruiting now
Conditions studied: Pathophysiology
In brief
Background / rationale: Type 2 inflammation is driving several chronic diseases in the airway. On one hand allergic rhinitis (AR) and allergic asthma (AA) are driven by allergen expose, while on the other hand eosinophilic Type 2 inflammation with late onset eosinophilic asthma (LOA) and chronic rhinosinusitis with nasal polyps (CRSwNP) are of non-allergic ethiology. For late onset type2 asthma, many risk factors have been defined, but clear insights into disease ethiology are currently lacking. Given the quintessential role of IgE in disease ethiology of both diseases, understanding the molecular immunological mechanisms underlying mucosal IgE responses is essential to understand disease ethiology. Hypothesis: Distinct mechanisms drive local IgE production in AA and LOA Overall objectives: Elucidate the potential drivers of and immunological pathways leading to local IgE production in AA and LOA, and understand how dupilumab acts on these mechanisms. Methods: A unique combination of state-of-the-art methods will be applied, including single-cell RNA sequencing and receptor profiling, proteomics, determination of the microbial composition, recombinant antibody screening and disease modelling in cell cultures. Expected results: The investigators expect for the first time to discern the drivers of local IgE production in LOA and uncover the immunological pathways leading to local IgE production in AA and LOA. Moreover, the investigators will obtain insights into the role of Dupilumab in modulation mechanisms. Impact: If successful, these insights will answer a long standing, unresolved question in type 2 disease and might aid in the development of novel directed therapeutics for AA and LOA.
Key facts
- Study ID
- NCT06234761
- Run by
- University Hospital, Ghent
- People needed
- 50
- Starts
- 2024-01-02
- Expected to finish
- 2028-12-01
- Last updated by the study team
- 2024-09-19
Who can join
Age: 18 and older. Sex: any. Healthy volunteers: not accepted.
You may qualify if…
- patients with nasal polyposis -
You may not qualify if…
- patients treated in the last 2 months with systemic corticosteroids
Where it is running
- University Hospital Gent — Ghent, Belgium (enrolling)
Full record on ClinicalTrials.gov
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