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Clinical Trial Summary

The aim of this study is to determine and compare serum cytokine levels of six different severe asthma inflammatory phenotypes differentiated by their atopy, peripheral eosinophilia and/or chronic rhinosinusitis and/or nasal polyposis status.


Clinical Trial Description

A prospective observational study of 90 adults diagnosed with severe asthma and on regular follow-up and 15 control subjects will be investigated. Stable (controlled or partly-controlled) status (of all) and exacerbated-status (if any) serum cytokine levels [IL-4, IL-5, IL-10, IL-13, IL-25, IL-33, thymic stromal lymphopoietin (TSLP), IL-17A, periostin) will be evaluated. Also nasopharyngeal brush samples will be obtained for respiratory tract panel work-up with PCR in exacerbated patients. Effect of viral infections' on cytokine response in different inflammatory phenotypes will be evaluated. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03563521
Study type Observational [Patient Registry]
Source TC Erciyes University
Contact
Status Completed
Phase
Start date November 27, 2017
Completion date June 28, 2019

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