View clinical trials related to Asthma.
Filter by:This randomized, double-blind, double-dummy, placebo-controlled, parallel-group, 12-week study will evaluate the efficacy and safety of beclomethasone dipropionate (80 or 160 mcg/day) administered via breath-actuated inhaler (BAI) and metered-dose inhaler (MDI) in pediatric patients 4 through 11 years of age with persistent asthma, compared with placebo. Patients took 1 inhalation (with assistance from parents/guardians/caregivers, as needed) from each of 2 devices (BAI device followed by MDI device in that order) twice daily as per the double-dummy study design: 1 BAI treatment or placebo device and 1 MDI treatment or placebo device for a total of 2 inhalations each time.
Studies examining the sex differences in the epidemiology and morbidity patterns of asthma show that the rates of disease severity, healthcare utilisation, and poor quality of life are considerably higher in women than in men, and this has been attributed to endogenous and exogenous sex hormonal factors. Studies examining the impact of use of hormonal contraceptives on the risk of asthma and asthma-related conditions are few, yet findings are conflicting. In the present study, the investigators utilize data from the Scottish Health Survey, a national representative sample, to investigate the associations between current use of hormonal contraceptives and the prevalence of self-reported doctor-diagnosed current asthma and wheezing symptoms in Scottish women. The investigators hypothesize that while current use of any hormonal contraceptives and combined oral pills are associated with higher prevalence of asthma and asthma outcomes, current use of progesterone-only contraceptives is not associated with asthma. A secondary aim of the current study is to examine whether there is evidence of any biological interaction between use of hormonal contraceptives and BMI in relation to the risk of asthma and asthma outcomes.
Asthma is a common condition which produces a significant workload for general practice, hospital outpatient clinics and inpatient admissions. Asthma is caused by inflammation of the airways which irritates the muscles around the airways causing them to constrict. The mainstay of asthma treatment is inhaled steroids. If the patients' symptoms are still not adequately controlled, then a long-acting beta agonist (LABA) inhaler which relaxes the muscles in the airways and opens it up is frequently added to the inhaled steroids. Despite this, a substantial proportion of asthmatic patients still do not achieve adequate control of their symptoms. Recent studies have shown when an alternative inhaler called a long-acting muscarinic antagonist (LAMA) is added to a LABA - it reduced the number of asthma exacerbations (flare-ups) and improved airway narrowing. The mannitol challenge is a test of airway 'twitchiness', an important feature of asthma. There have been no previous studies assessing the combined effects LABA and LAMA inhalers on mannitol challenge. The mannitol challenge is particularly relevant as it mimics stimuli encountered in real life which provoke an asthma attack. The investigators propose to directly compare indacaterol, a new once-daily LABA with indacaterol plus tiotropium, a once-daily LAMA, as add-on treatment to inhaled steroids in persistent asthmatics using the mannitol challenge. The investigators hope that this study will help us understand how the combination of a LABA and LAMA might help protect against flare-ups.
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.
Asthma is the most common chronic disease of childhood and is responsible for large portion of pediatric admissions to Canadian hospitals. There is evidence that clinical pathways allow for optimal delivery of care and may result in decreased length of stay, leading to important economic benefits. Weaning of asthma medications prescribed for asthma exacerbation is not standardized in the current model of care. Currently, weaning is performed by ward physicians; in a teaching hospital, this most often done by residents staff. Differences in practice between different physicians, delays in patient assessment and adjustment of doctor's orders, likely prolong the hospital stay for children admitted with asthma. This study's main objective is to determine the effect of a nursing-driven clinical pathway on children's length of stay when admitted to hospital with a diagnosis of acute asthma exacerbation. The pathway will allow nurses to wean a specific type of medication(β2-agonist), as compared to the current standard of care, which dictates that a physician writes an order to wean the medication. Number of administered β2-agonist treatments will be compared between both groups, as well as asthma-related health care utilization within two weeks of hospital discharge. Nursing, physician, and patients' satisfaction with the pathway will be evaluated, and a cost minimization analysis will be performed. This study has the potential to improve resource use efficiency, increase patient safety by avoiding administration of unnecessary medications, and ameliorate quality of care by standardizing the care of children admitted to the hospital with a diagnosis of acute asthma exacerbation. The results of the study will be disseminated across the Canadian Health Care System with the goal of improving outcomes of children admitted to hospitals with acute asthma exacerbations.
This randomized controlled study aimed to evaluate the efficacy and safety of acupuncture therapy on persistent allergic rhinitis patients complicated with asthma.
Exercise training has been proposed as adjunctive therapy in asthma to improve many clinical outcomes; however its effects on bronchial hyperresponsiveness (BHR) and inflammation, characteristic features in asthma, remains poorly understood. We aim to investigate the effects of aerobic training on BHR (primary aim) and systemic inflammation (secondary aim). In addition, clinical control and health related quality of life (HRQoL) will be also assessed.
This is a Phase 3, randomized, placebo-controlled, double-blind,double-dummy, parallel-group, 12-week study in male and female patients, 12 years of age and older, with persistent asthma.
The investigators will find out if bronchial thermoplasty shows efficacy in reducing acute exacerbation and improving quality of life for uncontrolled asthma in Korea through this research. US FDA approved this procedure and CE mark was taken in Europe. Many procedure was performed in Western countries. Korean FDA have approved this procedure in 2013. However, no procedure was performed in Korea, and the data is rare in Asian countries. In this study, investigators will examine the efficacy of this procedure in Korean asthmatics.
Introduction: Recently it has involved the role of TLR (toll-like receptors) in the pathogenesis of asthma. TLRs are a family of proteins responsible for the recognition of Pathogen-Associated Molecular Patters (PAMPs). The possible role that TLRs play in IgE-dependent asthma (not eosinophilic) and its recognition as a new endotype asthma, could open new therapeutic expectations. Objective: To analyze the expression of TLR 2 and 4 in monocytes/ macrophages and neutrophils in peripheral blood and induced sputum from asthmatic patients