Active clinical trials for "Asthma"

The goal of the project is to define the prevalence and inflammatory background of exercise-induced bronchoconstriction (EIB) in school children and determine individual and environmental risk factors for EIB. The obtained results will provide objective measures on biological processes leading to bronchoconstriction during exercise, as might be experienced naturally during the school life. The results could be applied in the management of EIB patients with or without asthma. The results of planned research will be published in journals with national and international impact, and presented during symposia and conferences.

The purpose of this study is to evaluate clinical and histological response to bronchial thermoplasty in severe asthma patients.

Asthma is the most common chronic respiratory disorder in children. Despite significant advances in understanding of asthma, available therapies fail to alter the natural history and progression of the disease. Airway epithelial cells are continuously exposed to and injured by environmental irritants, such as viruses and pollutants, and as such are ideally situated to orchestrate airway function in response to these stimuli. Severe or difficult-to-treat asthma in children is a complicated disorder characterized by ongoing symptoms and persistent airway inflammation and oxidant stress despite corticosteroid treatment. Although severe asthma is likely a heterogeneous disorder, affected children similar clinical features, including gas trapping, bronchial hyperresponsiveness, and aeroallergen sensitization. However, the molecular and cellular pattern of inflammation in children with severe asthma are not uniform : some investigators have found increased eosinophils and TH2 derived cytokines, others have noted noneosinophilic patterns with neutrophil activation. Given the heterogeneity of the inflammatory response in children with severe asthma, additional methods to distinguish severe asthma are needed.

The researchers are investigating a novel technique, the multi breath nitrogen washout technique, to measure airway changes in various respiratory diseases.

The purpose of this study is to determine whether asthmatics have different adenosine receptor expression profiles than healthy controls. We hypothesize that asthmatics will have increased adenosine receptor expression versus control subjects. We also want to study the effects of allergen inhalation on adenosine receptor expression in asthmatics. We believe that adenosine receptor expression will be upregulated after allergen inhalation. Both hypotheses are being tested in sputum and peripheral blood.

The Sentinel-001 study aims to identify a combination of biomarkers suitable for triage of breathlessness.

The primary objective of this research is to monitor chronic rhinosinusitis (CRS) symptoms in asthma patients who are undergoing treatment with reslizumab. A secondary objective is to explore whether there are sub-populations that appear to benefit or not benefit from reslizumab in terms of their CRS symptoms.

The purpose of this research study is to collect lung tissue and fluid from two groups of people: those who have severe asthma, and those who do not. These samples will then be tested in a laboratory to identify differences in the lung tissue cells and fluids that may exist between these two groups of people.

Asthma is a chronic illness characterized by inflammation of the airways. Severe asthma is defined in the literature as asthma not controlled by medication. In recent years it has become known that severe asthma is a variable disease and has subtypes relating to the age of onset, type of inflammation and allergy, obesity, etc. Our aim is to characterize the phenotypes of severe asthma population in our clinic and compare the prevalent phenotypes to the phenotypes described before.

The aim of investigator´s clinical trial is to investigate 52 patients aged three to five years with viral-induced asthma and 52 patients aged three to five years with allergic asthma. Over a time-span of 5 years the investigators will explore lung function and bronchial responsiveness. The investigators plan to evaluate long-term clinical history of moderate to severe bronchial hyperresponsiveness in preschool children with asthma. Therefore factors like atopy in children, parental atopy and bronchial hyperresponsiveness will be explored.