View clinical trials related to Asthma.
Filter by:- The inflammatory process that leads to the development of asthma may be present before the onset of asthma symptoms and cause a certain degree of airway hyperresponsiveness. Without treatment it may induce irreversible airway structural changes that are associated with permanent changes in airway functions, persistent airway hyperresponsiveness and lead to the development of asthma symptoms. - Atopic subjects with asymptomatic airway hyperresponsiveness and first degree relatives with a history of asthma are at higher risk to develop symptomatic asthma. Early treatment of airway inflammation in these predisposed subjects with " borderline " or mild airway hyper-responsiveness could prevent the development of asthma symptoms, and reduce or even normalize airway responsiveness. - In very mild asthmatic subjects (bronchodilator need < thrice a week), early anti-inflammatory treatment can lead to " normalisation " or airway responsiveness in a significant number of subjects and prevent the need for subsequent regular therapy. This is particularly true for those showing blood/sputum eosinophilia. Objectives: To compare perception of bronchoconstriction, pulmonary function and airway inflammation in subjects with mild symptomatic asthma and asymptomatic asymptomatic airway hyperresponsiveness Methods: To compare the influence of inhaled fluticasone propionate 250 mcg/day for 3 months followed by 100 mcg/day for 9 months on airway inflammation and methacholine responsiveness in a double-blind, placebo-controlled, parallel groups study including non-smoking atopic subjects with mild asthma and asymptomatic airway hyperresponsiveness
Patients with asthma can be effectively treated using an Internet-based management system as demonstrated by: 1. Physician utilization (emergency department visits and unscheduled physician visits). 2. Health-related quality of life scores. 3. Global health care costs. 4. Frequency of severe exacerbations and time to first exacerbation. 5. Asthma control days. 6. Patient education. Effective patient education will be associated with decreased markers of inflammation and improved indices of airways function.
This study will evaluate and follow patients with various allergic, hypersensitivity and inflammatory disorders. The protocol is not designed to test new treatments; patients will be managed with standard of care therapies. Participants may be referred to other current NIAID protocols as appropriate or to new studies as they are developed, but will not be required to join another study. Patients with allergic, hypersensitivity or inflammatory disorders between the ages of 3 years and 80 years may be eligible for this study. Conditions of interest include, but are not limited to, asthma, allergic rhinitis, mastocytosis, atopic dermatitis and food allergy. Participants will have a medical history and physical examination, plus standard tests for diagnosing and treating their specific disorder. Tests may include routine blood and urine studies, X-rays or other imaging studies, allergy skin tests and lung function tests. Blood samples may be collected for research on immune system cells and other substances involved in immune function. Generally, about 2 to 6 tablespoons will be drawn at a time, but no more than 16 ounces will be collected over a 6-week period. NIH does not provide emergency medical treatment or treatment for other, unrelated conditions the patient may have. Therefore, patients must maintain a personal physician for these purposes.
Rational: The possible contribution of methacholine challenge test via spirometry to the clinical diagnosis of young children with various respiratory symptoms, the most appropriate spirometry index, and the proper cutoff point concentration that will define airway sensitivity have not yet been explored. Objectives: To assess airway reactivity by spirometry in a large group of children aged 3-6years with various respiratory symptoms.
The purpose of this study is to assess the effectiveness of JNJ-18054478 measured by the percent change from baseline in Forced Expiratory Volume in one Second (FEV1) after 12 weeks of therapy in patients with persistent asthma.
This trial is conducted in Europe, Asia, Oceania and the United States of America (USA). This is a one-year clinical trial to compare the safety of inhaled preprandial human insulin to subcutaneous insulin aspart in subjects with type 1 or 2 diabetes and asthma.
This study will last up to 9 weeks. Subjects will visit the clinic up to 14 times. Certain clinic visits will include a physical examination, lung function tests, inflammatory cell analysis from nasal secretions and/or sputum, and blood draws. Subjects will inhale an FDA approved virus through their nose which is known to cause the common cold. All study related medications and medical examinations will be provided at no cost to the subject. The drugs used in this study are approved for the age group under study.
The purpose of this study is to estimate the sensitivity, specificity and positive and negative predictive values of a positive Aridol challenge with respect to a specialist pulmonologist diagnosis of asthma in corticosteroid naive subjects with asthma-like symptoms and no previous diagnosis of asthma. The comparator is methacholine provocation
Asthma is a chronic inflammatory disorder of the airways with a variety of inflammatory processes contributing to the pathogenesis. The inflammation leads to a state of increased airway responsiveness and reversible airway obstruction that causes the recurrent symptoms of asthma. Despite the variety of treatments available for asthma, none are curative, and the disease continues to place a burden on society in terms of morbidity, reduced quality of life (QOL), and ever increasing healthcare costs. The prevalence of asthma continues to increase with current data suggesting that since 1980, adult asthma cases have increased by 75% and in children under 5 years of age the prevalence has increased by 160%.1 Additionally, studies have suggested that the disease severity has been underestimated and that more patients may be classified as having moderate to severe persistent disease.2 Inhaled corticosteroids (ICS) have been the cornerstone of anti-inflammatory treatment for decades and have been shown to improve lung function, decrease symptoms, and reduce asthma exacerbations.3 However, many patients are still inadequately controlled despite treatment according to current asthma management guidelines and have a significant unmet medical need. Such patients are at high risk of serious exacerbations and asthma-related mortality.4 Combining long-acting β2-agonists (LABAs) with low dose ICS has been shown to improve asthma control over using higher doses of ICS alone. However, LABAs act mainly at the bottom of the inflammatory cascade and there are concerns that they may mask underlying inflammation.5 Recently, leukotriene receptor antagonists have been added to ICS as second-line therapy in the management of asthma. Zileuton has been extensively studied in inflammatory diseases such as asthma, in which leukotrienes mediate inflammation. The aim of this study is to assess the effect of zileuton controlled-release (CR; 1200 mg 2-times daily [BID]) on pulmonary function, asthma control, and symptomatic response in adult patients with asthma poorly controlled on moderate dose ICS.
To evaluate the effect of MEDI-528 in adults with atopic asthma.