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A Description of Inflammatory Cell Types In Moderate to Severe Pediatric Asthma: Eosinophilic and Non Eosinophilic Sputum Markers While on Anti-IgE Therapy - NCT00283504-23507(Clinical Trial 136781)



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City:  Norfolk
State:  
VA
Zip Code: 23507
Conditions: Allergic Asthma
Purpose: The researcher proposes to assess levels of sputum inflammatory markers (eosinophils, eosinophil cationic protein (ECP), neutrophils IL-8) before and while on anti-IgE therapy in a pediatric population of moderate to severe asthmatics who have ongoing persistent asthma symptoms despite on moderate to high doses of inhaled corticosteroids (ICS). Associations will be assessed between the types of sputum inflammatory markers and the patient's atopic status and level of asthma control as indicated by the following measures: 1. pulmonary function test (PFT) 2. asthma symptoms based on the Asthma Control Test (ACT)
Study summary: Objectives: Primary: Describe inflammatory cell types in study patients and compare changes in inflammatory cell patterns before and during anti-IgE therapy. Secondary:Describe patterns of sputum eosinophilia and neutrophilia in relation to asthma symptom improvement based on ACT and PFT Hypotheses: Differences in inflammatory response after the addition of anti-IgE therapy can be described in neutrophilic, eosinophilic and neutrophilic/eosinophilic asthmatics. Neutrophilic asthmatics patients will fail to respond when placed on anti-IgE while eosinophilic asthmatics will respond well. Sputum inflammatory markers are sensitive markers of inflammation and can predict response to new asthma treatment modalities such as anti-IgE therapy.
Criteria: Inclusion Criteria: - Moderate to severe allergic asthma, uncontrolled on conventional therapy Exclusion Criteria: - History of systemic illness, currently on other immune modulators like immunotherapy, IVIg - Pregnancy - IgE level >1300
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Data Source: ClinicalTrials.gov
Date Processed: May 21, 2010
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