View clinical trials related to Chronic Obstructive Pulmonary Disease.
Filter by:The effect of neuromuscular electrical stimulation on muscle atrophy in sedated patients on intensive care was studied. The aim of this study was to explore if electrical stimulation could prevent muscle atrophy.
To assess the infectious etiology related to acute exacerbation of COPD in Hong Kong
Guidelines recommend inhaled corticosteroids (ICS) for patients with moderate to severe chronic obstructive pulmonary disease (COPD). Most COPD patients are managed in primary care and receive ICS long-term and irrespective of severity. The effect of withdrawing ICS from COPD patients in primary care is unknown.This randomised double-blind placebo-controlled trial will evaluate the effect of withdrawal of inhaled corticosteroids in patients with COPD recruited from general practice. Participants will have a clinical and spirometric diagnosis of COPD and will have been prescribed inhaled steroids for the 6 months before entry to the trial. They will be randomised to taking a fixed dose steroid inhaler (Flixotide Accuhaler) or an identical placebo inhaler. Patients will be monitored using diary cards for a year with 3 monthly follow-up visits at their general practice. The primary outcome measures will be exacerbation frequency and severity. Other outcomes are time to first exacerbation, costs, health status, lung function and unscheduled care. We tested the hypothesis that withdrawal of ICS in this population would lead to an increased number of exacerbations, earlier onset of exacerbation, and a worsening of symptoms.
This study will investigate potential differences in how two puffs of salbutamol protects airway smooth muscle from contracting in people with asthma and chronic obstructive pulmonary disease (COPD).
This trial evaluates the rate of onset of bronchodilator action of aclidinium bromide compared to placebo and tiotropium in patients with severe COPD after a single dose treatment.
Chronic obstructive pulmonary disease (COPD) is the UK's fastest growing fatal disease and is estimated to cost the health service close to £1 billion every year. Around 80,000 people in Northern Ireland suffer from COPD. COPD is clinically defined as a slowly progressive condition characterised by airflow limitation, which is largely irreversible. Chronic inflammation and oxidative stress are key components of the underlying pathological process resulting in airflow limitation. Dietary factors and nutrients that have antioxidant or anti-inflammatory properties are therefore of interest with respect to the aetiology of COPD. The antioxidant vitamins C, E and beta-carotene are all present in the lung milieu. Such antioxidants represent the lung's first line of defence against oxygen free radicals. Observational studies indicate that a low dietary intake of antioxidant nutrients, or foods rich in antioxidants (e.g. fruit and vegetables), is associated with decreased lung function and increased risk of COPD. To date, there have been no food-based dietary interventions investigating the effect of increased fruit and vegetable intake on COPD. The investigators propose to recruit people with mild to moderate COPD and low fruit and vegetable intakes (<=2 portions daily) and randomise them to one of two study arms for 12 weeks - either to increase fruit and vegetable consumption to at least 5 portions a day, or to follow their normal diet. Airway and systemic oxidative stress and inflammation will be assessed at baseline and post-intervention in order to determine if fruit and vegetables have the potential to alleviate the oxidative stress and airway inflammation associated with COPD.
The purpose of this study is to investigate the effect of 500mcg roflumilast vs placebo on exacerbation rate and pulmonary function as well as quality of life in patients with chronic obstructive pulmonary disease (COPD).
The investigators hypothesize that continuation of non-invasive ventilation (NIV) at home after an episode of acute hypercapnic respiratory failure (AHRF) treated by NIV in COPD patients would reduce the likelihood of death and recurrent AHRF requiring NIV or intubation. The investigators designed this study in a way that recruited COPD patients would be started on home NIV or sham treatment after an episode of AHRF requiring acute NIV. The patients are acclimatised to NIV application after a few days of acute use. The investigators chose occurrence of life-threatening event (recurrent AHRF and death) as the primary endpoint.
Rationale: respiratory complications are the most frequent complications following lung resection and represent a noticeable cause of mortality. Benefits from non-invasive ventilation (NIV) in acute respiratory failure are now clearly demonstrated. The use of preventive NIV after lung resection, in the absence of acute respiratory failure and/or hypercarbia, could be justified by the physiological benefits expected. The goal of this study is to assess the efficacy of post-operative NIV in moderate-to-severe COPD, for prevention of respiratory complications. Material and Methods: This is a prospective randomised multicenter trial with an open parallel design in moderate-t-o-severe COPD patients hospitalised in thoracic surgery for lung resection. Expected results: This study will determine whether post-operative NIV decreases the incidence of acute respiratory events (acute respiratory failure) and whether some subgroups of patients benefit more from this strategy. Conclusion: This study should help evaluating the utility of post-operative NIV after lung resection.
The purpose of this study is to evaluate and compare the efficacy of arformoterol twice a day and tiotropium once a day (dosed sequentially) versus tiotropium once a day alone in subjects with Chronic Obstructive Pulmonary Disease (COPD).