View clinical trials related to Asthma.
Filter by:Asthma, a chronic disease which produces significant morbidity and mortality in children, is a significant health problem to a large segment of society. Despite considerable advances in the diagnosis and treatment of asthma over the past several years, a sizeable portion of patients do not respond to the "core" treatments. The investigators are now learning that the underlying pathophysiology of disease is different among patients with asthma therefore; treatments which are beneficial in some patient groups may be not achieve affect in other groups. Antihistamines have been studied in the past for the treatment of asthma. These studies have shown that there may be a beneficial effect of antihistamines in patients with allergic asthma where histamine likely plays a large role in disease and treatment response. However, there is not enough evidence to include these drugs in the standard treatment of asthma. The investigators hypothesize that histamine plays a definable, significant role in disease pathogenesis and treatment response in children with allergic asthma. The investigators plan to test this overall hypothesis through two specific aims. The first aim will characterize the relative contribution of histamine in allergic vs. non-allergic asthma. This aim will be accomplished by comparison of the microvasculature response to histamine in children with allergic asthma and children with non-allergic asthma, measured by histamine iontophoresis with laser Doppler (HILD) monitoring, to determine potential phenotype-associated differences in the pharmacodynamic response to histamine.
The purpose of this study is to compare the test product Budesonide/formoterol Easyhaler with the marketed product Symbicort Turbuhaler in terms of the drug absorbed into the bloodstream.
This study will look at the permeability, or 'leakiness' of the airway epithelium (the inner lining of the lung) in asthmatic patients. Increased leakiness of this lining has been shown in asthmatic patients by other studies, not only in the lung but also possibly in the gut, perhaps reflecting a widespread defect. This leakiness may underline the interaction between the environment and a person's genetic make up, and may contribute to why some people get asthma, and how severe it is. Increased leakiness may allow increased exposure to inhaled allergic substances, helping to perpetuate the inflammation in the lungs that is a hallmark of asthma. Specifically, this study will attempt to modify and reduce this permeability through the use of a substance called 'keratinocyte growth factor', or 'kgf'. KGF is a naturally occuring human protein, which is involved in stimulating the growth of cells lining the layers of the skin and gut, helping to repair damage and maintain their structure. It has been manufactured in a laboratory as the commercial compound 'Palifermin', which has already been used in humans to reduce damage to the lining of the mouth after chemotherapy. The study will see if Palifermin can similarly improve the lining of the lung in asthma patients and improve their symptoms. To date no treatments have been used in this area in asthma, and if successful the study will open up a whole new area of therapy
The objective of this feasibility research study is to gather preliminary clinical data regarding the safety and potential clinical benefit of noninvasive neurostimulation of the vagus nerve with the AlphaCore™ system for the relief of acute bronchoconstriction due to asthma.
This is an epidemiologic, multi-center, cross-sectional study to define the phenotypic characteristics of Difficult-to-Treat asthma, among children between the ages of 6 to 17 years, receiving one year of guidelines-based therapy for asthma and rhinitis/rhinosinusitis.
In infants and toddlers wheezy bronchitis is a common viral disease. To relieve wheezing symptoms bronchodilators or corticosteroids are commonly used but the efficacy is not always satisfactory. The purpose of this trial is to investigate the effectiveness of iv-magnesium in the treatment of moderate or severe bronchial obstruction associated with viral infection in small children. The study population will include the children attending the Pediatric Emergency Department of Oulu University Hospital because of respiratory infection and bronchial obstruction that is not relieved with conventional treatment. After written consent from the parents, the children will be randomized to get either intravenous magnesium sulfate or isotonic NaCl. The primary outcome is RDAI (Respiratory Distress Assessment Instrument) scoring six hours from the infusion. Secondary endpoints are RDAI scoring and oxygen saturation at other time points and length of hospital stay. The sample size is 64 children at the age of 6 months to 4 years. If iv-magnesium is effective in relieving viral infection associated bronchial obstruction, that would be an important addition to the treatment of this common disease.
The aim of this trial is to select an optimum dose may be selected based on bronchodilator efficacy, safety evaluations and pharmacokinetics of tiotropium bromide.
As part of ongoing efforts to determine the causes of asthma and the progression of the disease, this study will gather data to explore the interaction of genetic and environmental factors in the cause and severity of asthma in inner city children.
The high burden of asthma appears to be related to poor asthma control, which is associated with more frequent asthma symptoms, greater bronchodilator use and functional impairment, and worse pulmonary function. Despite the availability of effective treatments, more than 58% of asthmatics are poorly controlled. Daily adherence to inhaled corticosteroid (ICS) regimens is considered by experts to be one of the most important behavioural factors linked to achieving optimal asthma control. However, there is a paucity of research on interventions specifically designed to improve ICS adherence among adult asthmatics. The vast majority of intervention studies to date used atheoretical interventions to target behaviour change, relying mainly upon educational approaches which have been criticised for "failing to translate knowledge into action." This may be due to the fact that most education-based approaches do not specifically address or help patients overcome ambivalence about behaviour change, which is necessary for ensuring daily adherence. Motivational communication (MC) is a client-centred intervention that focuses on enhancing intrinsic motivation to change a particular behaviour, and exploring and resolving ambivalence about behaviour change. Brief MC sessions (e.g., 1-5 x 15-30 minute sessions) have been shown to improve a variety of health behaviours (e.g., reduce alcohol consumption, improve dietary habits, increase exercise behaviour, and improve medication adherence) and health outcomes (reduce blood pressure, body mass index, and cholesterol levels). However, no studies to date have assessed the efficacy of using MC to improve ICS adherence in asthmatics. This study aims to assess the efficacy of using MC to improve daily medication (ICS) adherence in a sample of poorly controlled, non-adherent asthmatics. It is hypothesized that patients randomized to the MC condition will exhibit significantly improved ICS adherence at 6 and 12-months post-intervention, independent of baseline levels and covariates, relative to patients randomized to the usual care control condition.
This trial is a follow-up study of the ICAC-12 Phase I/II trial (NCT00829985), and is designed to study biomarkers of the immune response to allergen immunotherapy and the safety of this therapy in a pediatric population.