View clinical trials related to Asthma.
Filter by:The aim of the study is to explore the contribution of pollen starch granules to the induced symptoms and airway inflammation in patients with allergic rhinitis and mild asthma in a controlled pollen exposure(pollen challenge room at the Fraunhofer ITEM). Starch granules are released from the pollen grains and are considered to be the allergen carriers of the pollen. The hypothesis is proposed that pollen starch granules are important in the induction of airway inflammation and airway hyperresponsiveness.
The purpose of this study is to evaluate the effectiveness and safety of CNTO 148 (golimumab) in patients with severe persistent asthma.
The purpose of this study was evaluation the efficacy of antiepileptic drug carbamazepine in the treatment of mild-to-severe bronchial asthma.
Studies have shown that the prevalence of respiratory symptoms, airway hyperresponsiveness (AHR) and asthma is high and increasing in elite athletes. The inflammation seen in the airways of elite athletes might differ from the inflammation seen in the airways of "ordinary" asthmatics and it might represent a different kind of asthma. The primary purposes are 1. To investigate the type of airway inflammation in young swimmers. 2. To investigate the acute changes in airway inflammation after a short training session.
Study on the relationship between the response of the airways to a bronchial provocation test with mannitol and the degree of airway inflammation in asthma patients.
Although asthma is likely to be a heterogeneous disease or syndrome, three factors and/or events repetitively emerge for their ability to significantly influence asthma inception in the first decade of life: immune response aberrations, which appear to be defined best by the concept of cytokine dysregulation; lower respiratory tract infections (in particular RSV); and some form of gene by environment interaction that needs to occur at a critical time period in the development of the immune system or the lung. It remains to be firmly established, however, how any one or all of these factors, either independently or interactively, influence the development of childhood asthma. Thus, our efforts to determine and define the importance of these three factors to asthma pathogenesis are the focus and goal of this current grant application.
This is an epidemiologic study, examining environmental exposures and affect on immune development.
HYPOTHESIS Gastroesophageal reflux is a major contributor to exercise-triggered asthma. Two groups of patients will be studied: those with asthma who have difficulty with exertion, those without asthma who experience difficulty with exertion. Both groups will experience gastroesophageal reflux (GER) twice of less per week. Patients will complete a treadmill exam to determine their VO2 max. They will then undergo pH monitoring while exercising for 30 minutes at 65-70% of their VO2 max. Subjects will be given placebo or acid suppression pill for 12 weeks. At the end of 12 weeks, the subjects will repeat the exercise (30 minutes) and 24-hour pH study.
Asthmatics have inflammation in the large airways (tubes through which air travels in and out of the lungs). The large airways are located in the central lung. New research shows that asthmatics also have inflammation in the small airways. The small airways are located in the peripheral lung (the parts of the lung away from the central lung). Until now, most of the inhaled medications available have been made up of big particles that never reach the peripheral lung. The purpose of this study is to try to measure the level of inflammation in the peripheral lung in asthmatics and see if this inflammation can be decreased with different types of inhaled corticosteroids. The investigators will check airway inflammation before and after use of an inhaled corticosteroid that has a large particle size and should only reach the large airways (Flunisolide-CFC), and before and after use of an inhaled, small particle corticosteroid that should reach both the large and small airways (Flunisolide-HFA). Subjects will make 6 study visits over two phases of the study. In the first phase, the investigators will collect baseline information about subjects while they are using placebo (inactive substance). In the second phase, subjects will take either the large or small particle corticosteroid. Visits will involve questionnaires and various tests measuring lung function (such as spirometry, forced oscillation, and methacholine challenge). Exhaled nitric oxide will be measured as an indication of inflammation. Subjects will also measure and make note of lung function at home twice daily using a peak expiratory flow meter. Two of the visits will involve fiberoptic bronchoscopy so that the investigators may collect cells and tissue samples without surgery. Another two of the visits will involve the use of high resolution computed tomography (HRCT) scans to indirectly evaluate disease in distant parts of the lungs.
This study will evaluate the link between blood group antigens and asthma exacerbations.