View clinical trials related to Asthma.
Filter by:Long term conditions often necessitate long term care. In many cases, giving control of their conditions to the patients themselves produces the best outcomes. Such patient education and the acquisition of self-management skills can be time consuming and the evidence suggests that the process is often not undertaken by doctors. Sometimes it is delegated to nursing colleagues, but all health professionals are in short supply. Patients carry credibility as a resource and this project is designed to determine, by means of a multi-centre randomised controlled trial, whether well trained lay educators can deliver training in self-management education to others with asthma, with outcomes equivalent to those achievable by a nurse.
Consultation time in busy respiratory clinics is inevitably limited and attendance is often disruptive to patients' lives; involves time, expense, travel, and waiting; and can have effects upon occupation. Published work suggests that patient satisfaction with telephone consultations is high and this subject has recently been extensively reviewed by one of the study investigators. In respiratory medicine there is United States (US) data to suggest that the regular telephoning of adolescents with asthma by a specialist nurse can reduce unscheduled use of health service resources. In the United Kingdom (UK), a randomised, controlled trial in primary care has shown that, compared to face to face consultations, use of the telephone can enable greater numbers of patients with asthma to be reviewed. Another of the study investigators has undertaken a feasibility study in a general respiratory clinic and has shown the concept of alternating face to face consultation with telephone consultation to be acceptable to over 80% of patients. Over one third were assessed to be suitable in that they did not need to attend the clinic for either physical examination or for investigations. It is therefore proposed to evaluate the feasibility, acceptability, time savings and safety of the use of telephone consultation in 3 respiratory clinics in the Department of Respiratory Medicine at Charing Cross Hospital.
Some five million people in the United Kingdom (U.K.) have asthma. The British Guidelines on Asthma recommend self management education and the issuing of written personal asthma action plans. The use of such self management education has been shown to be associated with an up to 40% reduction in hospitalisation rates and a 20% reduction in Emergency Department attendances and similar benefits in terms of symptoms and time off work. In asthma, the results are best when the patients are provided with a personalised written action plan explaining how to alter their medications according to a variety of circumstances. Chronic obstructive pulmonary disease is a major cause of hospitalisation in the U.K. and is the fourth biggest single cause of death. A recent Cochrane review regarding the value of self management education in COPD has led to equivocal results although it has shown that those with COPD are willing to take control of their own conditions. The reasons for the different outcomes in asthma and COPD may reflect an inadequate number of trials of the wrong type; interventions that were not appropriate or do not work; lack of the use of written action plans; or assessment of benefit using the wrong outcomes. Given the importance attached to the written action plan, it is essential that such advice is available to all. However, studies of outpatients attending hospitals in the U.K. have shown that 15% may be functionally illiterate and in studies of adults with asthma in the United States (U.S.), 13% have similarly shown to be functionally illiterate. Pictorial advice may therefore be advantageous and, when tested amongst those who are literate, it has been also shown to enhance the recall of spoken medical instructions. The investigators have therefore prepared some pictorial representations which are designed to give advice to those with asthma and COPD about how to recognise the worsening of their conditions and what treatments to alter or initiate as a result. The investigators now need to assess the comprehensibility of those materials amongst a selection of patients with asthma and COPD.
Many studies have shown a high non-attendance rate in hospital outpatient clinics. The investigators have found a non-attendance rate of 25% in their asthma clinics and would like to investigate whether a reminder phone call will improve attendance rates. Patients will be randomised into two groups; one group will receive a reminder phone call one week prior to their hospital consultation and the other group will be managed in the standard manner (i.e. no reminder of any sort). The phone calls will be carried out on a Friday afternoon by a respiratory nurse specialist and a research officer for two asthma clinics based on a Wednesday morning and a Thursday afternoon.
The purpose of this study is to determine the effect of four weeks of treatment with two investigational drugs (oral versus inhaled administration) plus an inhaled medication in the treatment of airway constriction brought on by exercise in participants with asthma.
Acute exposure to diesel exhaust under normal city conditions leads to a worsening of symptoms of asthma, with reduction in lung function in asthmatic nonsmoking adults, dependent on the exposure dose and on the background severity of asthma. The worsening asthma is accompanied by increased oxidative stress and inflammation in the lungs.
Statins are the most common type of cholesterol-lowering drugs used in clinical practice. Recent research suggests that they may also have anti-inflammatory properties, in particular by inhibition of an important inflammatory cell called a T lymphocyte. Asthma is characterised by chronic inflammation in the airways, which is thought to be regulated by the activity of T lymphocytes. The investigators have found the anti-inflammatory activity of a statin drug in an experimental model of allergic asthma and they have recently shown the beneficial effects of a statin, atorvastatin, in patients with rheumatoid arthritis. These findings demonstrate the therapeutic potential of statin-sensitive pathways in allergic airways disease. The investigators plan to perform a "proof of concept" study to determine the effectiveness of statin therapy in asthma. This randomised controlled trial will test the hypothesis that statins improve asthma control of patients with chronic asthma. The study will be a 22-week randomised controlled trial comparing the effect on asthma control of oral atorvastatin with that of a matched placebo. Each treatment will be administered for 8 weeks separated by a 6-week washout period. A total of 52 allergic asthmatic patients will be recruited to ensure that 44 patients complete the study. The investigators will examine the effect of statin therapy on lung function, symptom scores, exacerbation rates, as well as on the measurement of airway inflammation in sputum and in the blood. This study will determine the benefit of atorvastatin as an add-on therapy in asthma and establish if statins might have a role in asthma management.
This study will use a randomized, double-blind, controlled trial design in order to assess the safety and efficacy of levalbuterol (LEV) compared to racemic albuterol (RAC) when delivered continuously in a high-dose regimen for children with severe exacerbations of asthma. Primary hypothesis - Children with severe asthma receiving continuous levalbuterol will have a shorter duration of continuous therapy as compared to racemic albuterol. Secondary hypotheses - Children receiving continuous levalbuterol will have improved lung function measured by forced expiratory volume at 1 second (FEV1) as compared to racemic albuterol. - Children receiving continuous levalbuterol will have improved clinical asthma score as compared to racemic albuterol.
This is a health services demonstration project that evaluates three methods of health care delivery for the management of individuals with symptoms of asthma. This study will evaluate the impact of a telephonic asthma disease management process, with and without a home intervention program, on preventing asthma-related morbidity through patient/family asthma education. The investigators' central thesis is that comprehensive clinical disease management protocols for the management of asthma will improve clinical outcomes; reduce fiscal resource consumption; and improve both patient satisfaction and patient quality of life. Additionally, individualized, in-home patient education and environmental assessment, when added to the telephonic protocol, will further improve these measures. However, incremental improvement will vary according to the population's access to care.
Asthmatic smokers display a blunted response to both inhaled and oral corticosteroid treatments and are at increased risk for exacerbations and near fatal asthma. The prevalence of smoking in asthmatics runs between 20-30%. Therefore, new, more efficacious treatments are required. Recent work has demonstrated a mechanism which may explain steroid resistance. A commonly used drug called theophylline can reverse this steroid resistance in laboratory studies. Another commonly used drug, rosiglitazone can reverse smoking induced lung inflammation in laboratory studies. The investigators aim to study the effects of these drugs on smoking asthmatics' lung function and other parameters including quality of life and asthma control.