View clinical trials related to Asthma.
Filter by:Asthma affects about 4 million children in the United States and is a leading cause of hospitalizations and school absenteeism. Continuous wheezing in very young children may develop into asthma. Low doses of inhaled corticosteroids (ICS) are commonly prescribed to treat children with particularly bad wheezing episodes. This study will compare the safety and effectiveness of low doses of ICS taken daily versus higher doses of ICS taken only during respiratory tract illnesses for toddlers with continuous wheezing or coughing illnesses.
Leukotriene receptor antagonists (LTRAs) reduce fractional exhaled nitric oxide (FENO) concentrations in children with asthma, but the effect of LTRA withdrawal on FENO and lung function is unknown. We will aim to study the effect of treatment and withdrawal of montelukast, a LTRA, on airway inflammation as reflected by FENO and lung function in children with asthma. A double-blind, randomized, placebo controlled, parallel group study will be undertaken in 18 atopic children with mild persistent asthma who will be treated with oral montelukast (5 mg/day for 4 weeks) and 18 atopic children with mild persistent asthma who will receive matching placebo. A follow-up visit will be performed 2 weeks after montelukast or placebo withdrawal.
This study will compare the rate and extent of absorption of TI Inhalation Powder in subjects with asthma and subjects with normal lung function. 24 eligible subjects will be enrolled into the treatment phase of the trial.
The purpose of this study is 1. To pilot the research methodology for a randomized trial on an orthomolecular treatment regime versus placebo as add-on therapy for children with asthma; 2. To obtain a preliminary estimate of the effectiveness of an orthomolecular treatment regime for allowing tapering of inhaled corticosteroids in clinically stable asthmatic children. The obtained estimate will allow sample size calculations for a full-scale randomized trial; and 3. To obtain preliminary information about the safety and tolerability of an orthomolecular treatment regime.
The overall goal of this project is to identify genes that are involved in the development of airflow obstruction and airway inflammation in asthmatics, and to determine whether polymorphisms in these differentially expressed genes predispose individuals to develop asthma. In this project, we hypothesize that polymorphisms of genes expressed by the airway epithelia in asthmatics following specific airway challenges predispose individuals to the development of asthma.
The purpose of the study is to determine the role of nitric oxide (NO) in asthma. We determine the effect of promoter polymorphisms in the gene for the NO producing enzyme, nitric oxide synthase (NOS2), on exhaled NO in healthy African Americans and Caucasians. We compare exhaled NO levels between African Americans and Caucasians. Information on race or ethnicity, serum samples, blood pressure, exhaled breath condensate and health questionnaires will be collected.
This study aims to investigate the effect of omalizumab on the number of tissue eosinophils and other markers of airway inflammation and remodeling, including thickness of the lamina reticularis, in moderate to severe asthmatics with persistent symptoms and evidence of airway inflammation despite treatment with inhaled corticosteroids and long acting beta-agonists. This study will also investigate the correlation between systemic and pulmonary inflammation, and the correlation between clinical outcomes and changes within the tissue, to assist in the future identification of patients with tissue eosinophilia and their response to treatment, without the need for invasive bronchoscopy.
The purpose of this study is to confirm previous observations in asthmatics that chronic nadolol treatment reduces asthmatic airway hyper-responsiveness.
This study is being carried out to see if budesonide with HFA is effective, safe and well tolerated compared with budesonide CFC. Budesonide HFA has been already given in other research studies, in both healthy volunteers and subjects with asthma.
An analysis of the costs and outcomes associated with hospitalization and treatment of Levalbuterol versus Racemic Albuterol in subjects with Asthma and COPD.