NCT02360072

Airway Inflammation and Bronchial Hyperresponsiveness in Rhinitic Children With or Without Asthma

To Delineate the Characteristics of Airway Inflammation and Bronchial Hyperresponsiveness in Rhinitic Children With or Without Asthma and Sought to Explore a Possible Predictor in the Progression of Allergic Rhinitis to Asthma

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 280 (actual)
• Sponsor: Guangzhou Institute of Respiratory Disease · Academic / Other
• Sex: All
• Age: 6 Years – 15 Years
• Healthy volunteers: Accepted

Summary

This is a prospective observational study , to clarity the characteristics of airway inflammation, airway reactivity and airway resistance in rhinitic children with or without asthma and to explore the possible predictors in the progression of allergic rhinitis to asthma.

Detailed description

Children 6-15 years old with allergic rhinitis and/or asthma diagnosed by specialist physician are enrolled in the department of respiratory and otorhinolaryngology and pediatrics in Guangzhou Institute of Respiratory Disease. According to presence of typical symptoms and signs, patients are divided into allergic rhinitis without asthma (AR group) , allergic rhinitis concomitant asthma (AS+AR group), asthma without rhinitis (AS group). In addition, healthy students in a school are enrolled as normal control group. History of all subjects are collected, the following measurements are performed: skin prick test (SPT), peripheral blood cells five-classification test, serum total immunoglobulin E (IgE) and specific IgE of common inhalant allergens testing, nasal lavage and induced sputum cells classification ，pulmonary function test, bronchial provocation test using methacholine，airway resistance measured by impulse oscillation technique, the levels of eosinophil（ECP），eosinophil peroxidase（EPO）.Meanwhile myeloperoxidase （MPO）and eosinophil-derived neurotoxin (EDN) are measured in induced sputum ,in nasal lavage and in serum.

Conditions

• Rhinitis
• Asthma
• Inflammation
• Hypersensitivity

Timeline

• Start date: 2014-09-01
• Primary completion: 2015-09-01
• Completion: 2015-09-01
• First posted: 2015-02-10
• Last updated: 2021-03-09

Locations

1 site across 1 country: China