View clinical trials related to Asthma.
Filter by:Asthma is a heterogenous disease. Different patients have different presentations, course of disease and response to treatment. The investigators would like to study our population of more severe asthma and find out about their profile - demographic, clinical and inflammatory.
This study aims to observe the therapeutic effect of Su-Huang antitussive capsule on cough variant asthma. The investigators hypothesize: Cough score and cough reflex sensitivity will be improved after treatment with Su-Huang antitussive capsule.
The purpose of this study is to investigate the use of magnesium sulfate nebulization in patient with moderate to severe asthma exacerbation in pediatric emergency.
Our study will enroll 644 randomly-selected Canadians who have been diagnosed with asthma by a physician within the previous five years. It will be determined what diagnostic tests were initially performed to make this diagnosis. Participants will undergo lung function testing over 6-8 weeks to determine their respiratory status and to confirm they have asthma. Participants may be followed up to one year depending on their test results.
Asthma is a chronic inflammatory disorder of the airways characterized by lower respiratory tract (LRT) symptoms such as wheeze, cough and airway obstruction. Patients with asthma frequently suffer from exacerbations, which can be triggered by allergens and, in particular, viral respiratory infections. It has recently been shown that mepolizumab, a humanized monoclonal antibody that neutralizes interleukin(IL)-5, markedly reduces the exacerbation rate in asthma patients with eosinophilic airway inflammation. Previous studies have indicated that in a mixed population (eosinophilic and non eosinophilic) of mild asthma patients, mepolizumab did not have an impact on lung function and asthma symptom scores upon allergen provocation, although it did on markers such as sputum and blood eosinophils. Together, these observations led to the hypothesis that mepolizumab treatment reduces the exacerbation rate by limiting virus-induced asthma exacerbations. The investigators hypothesize that neutralization of IL-5 during virus infection in patients with allergic asthma: 1. Reduces virus-induced bronchial inflammation 2. Attenuates virus-induced asthma symptoms, airflow limitation and bronchial hyperresponsiveness. 3. Enhances cellular immune responses to the virus. The aims of this study are to: 1. To investigate whether IL-5 neutralization reduces the inflammatory response to viral airway infections in allergic asthma patients 2. To investigate whether IL-5 neutralization prevents or reduces asthma symptoms during virus-induced asthma exacerbations 3. To investigate whether IL-5 neutralization affects the cellular immune response to viral airway infections in allergic asthma patients
The study will utilize a stress management program delivered over 10 sessions that is hypothesized to result in decreased stress levels and improved coping strategies in an inner city adolescent asthma population. Participants will include adolescents ages 10-15 years with physician diagnosed asthma. The outcome measures will be obtained via psychosocial questionnaires and spirometry.
The objective of this study was to investigate the relationship between single nucleotide polymorphism of chitinase 3-like 1 and human asthma.
This is an open-label, randomized, parallel Group, multicenter study to evaluate the efficacy and safety of budesonide novolizer dry powder inhaler compared with budesonide turbuhaler dry powder inhaler in Chinese mild to moderate asthma patients.
This is 9 month, placebo-controlled, double blind, randomised trial using the oral leucotrienes receptor antagonist montelukast (5 mg) in 160 children with mild and moderate asthma age 6-14 year old, sensitive to house dust mite. There are two study groups: montelukast group 80 patients and placebo group 80 patients. All patients will receive budesonide in dose sufficient to control asthma symptoms and short-acting beta agonist as needed. Medication used in the study: montelukast 5mg, budesonide. There are 7 doctor's visits - one initial visit (June) and 6 follow-up visits. First visit is on the first day of asthma symptom and each follow-up visit is every 6 weeks. Children with full asthma control (as measured by exhaled NO) had administered 100 mcg lower dose of budesonide and children with not fully control asthma had administered 100 mcg higher dose of budesonide.
The purpose of this study is to evaluate the site and mechanisms responsible for expiratory airflow limitation in chronic, treated, non-smoking, stable asthmatics with moderate to severe persistent expiratory airflow obstruction. Treatment will include inhaled corticosteroids and long acting beta2agonists. The investigators are interested in determining whether the large and/or small airways are the predominant site of airflow limitation. The investigators are also interested in determining whether intrinsic small airways obstruction and/or loss of lung elastic recoil is responsible for expiratory airflow limitation. The investigators are also interested to evaluate the role of varying doses of inhaled corticosteroids to suppress large and small airway inflammation using exhaled nitric oxide as surrogate markers of inflammation. For comparison purposes, spirometry and measurements of exhaled nitric oxide will also be obtained if possible during a naturally occurring exacerbation of asthma.