View clinical trials related to Chronic Obstructive Pulmonary Disease.
Filter by:When patients with chronic obstructive lung disease (COPD) are admitted to the hospital with a severe exacerbation they lose muscle strength. This muscle weakness predisposes these patients to further hospital admissions. Resistance training is a potent countermeasure to prevent and treat muscle weakness. In the setting of an acute exacerbation this intervention however has not been validated. The present study aims at investigating the safety and efficacy of resistance training (3x8 quadriceps extensions per day) to prevent muscle weakness. End points are quadriceps muscle strength and hospital readmission and functional status at discharge. Using the minimally invasive needle muscle biopsy technique described by Bergström the effects of resistance training on the skeletal muscle will be analyzed in detail. After giving informed consent, patients will be randomized on admission into usual care or usual care plus resistance training. Patients will be followed-up using the clinical pathway for COPD (10 days). After one month patients will attend the outpatient clinic for a follow-up visit. Besides the measurement prescribed in the clinical path for COPD (including arterial blood gas measures, lung function, functional investigation of the patients), patients will undergo muscle strength measures and venous blood will be drawn for the analysis of systemic inflammatory and growth factors. Half of the patients will receive a resistance training program. At the end of the hospital admission, a needle biopsy of the vastus lateralis muscle will be obtained.
This study is designed to collect long term safety data of indacaterol (300 µg o.d.) in Japanese patients with moderate to severe COPD. Data from this study will be used for the registration of indacaterol in Japan.
The purpose of this study is to compare differences in oxygen delivery between portable oxygen concentrators (POCs) and liquid oxygen (LOs) portable units, pose a question if POCs are equally effective as LOs in reducing exercise-induced hypoxaemia. DESIGN: Randomized, single-blind clinical trial.
This study was designed to test the following hypothesis: The benefit of electrostimulation training will be greater than sham stimulation training in term of muscle strength and mass (muscle hypertrophy), exercise tolerance, reduction of ventilation during exercise and quality of life in COPD patients
The purpose of this study is to evaluate the safety and efficacy of inhaled PT001 compared to placebo and tiotropium in patients with mild to moderate chronic obstructive pulmonary disease (COPD).
Does tiotropium effect the cough reflex in patients with COPD and chronic bronchitis.
Despite the availability of highly active antiretroviral therapy (HAART), lung diseases remain a leading cause of morbidity and mortality in those with HIV infection. There have been no large-scale studies detailing pulmonary complications in the HAART era. Substantial gaps exist in our knowledge of the spectrum and pathogenesis of pulmonary disorders in this population, particularly in women and minorities whose numbers with HIV or AIDS have increased. The Multicenter AIDS Cohort Study (MACS) and the Women's Interagency Health Study (WIHS) are prospective, multi-center cohorts that follow approximately 5000 HIV+ subjects and HIV- controls. Although pulmonary disease has not been an area of focus, these established cohorts provide a unique opportunity to systematically study pulmonary complications of HIV infection. Emphysema is of particular interest in the current HIV era because it is likely to increase as this population lives longer with chronic HIV. HIV-infected persons have an increased incidence of emphysema compared to those without HIV infection, and it has been hypothesized that this accelerated disease progression is the result of one or more latent infectious agents that amplify the pulmonary inflammation. Accelerated emphysema was described in HIV infection in a predominantly male population before HAART. The current prevalence and characteristics of HIV-associated emphysema, and the potential impact of gender, have not been rigorously defined.
The purpose of this study is to evaluate the influence of diaphragm mobility on exercise capacity and dyspnoea in patients with chronic obstructive pulmonary disease (COPD).
A. Statement of Hypotheses: HIV-infected patients have an increased incidence of emphysema compared to non-HIV-infected smokers, and it has been hypothesized that this accelerated disease progression is the result of one or more latent infections that amplifies the pulmonary inflammatory response to cigarette smoke. Pneumocystis is one infectious agent that likely plays a key role in the development of HIV-associated emphysema. Colonization with Pneumocystis has been demonstrated in HIV-infected subjects, and HIV-infected smokers are particularly susceptible to Pc colonization regardless of CD4 cell count or use of prophylaxis. Pneumocystis colonization is also increased in non-HIV-infected patients with chronic obstructive pulmonary disease (COPD) and is directly related to the severity of the disease. The presence of Pneumocystis in the lungs, even at low levels as seen in colonization, produces inflammatory changes similar to those seen in COPD, with increases in the numbers of neutrophils and cytotoxic CD8+ lymphocytes. We propose that Pneumocystis accelerates emphysema in HIV-infected smokers by stimulating inflammation and tissue destruction. We will examine the role of co-infection with Pneumocystis in the pathogenesis of HIV-associated emphysema and the mechanism by which it causes emphysema progression. These studies will lead to information that will provide a rational basis for prevention and therapy of HIV-associated emphysema and provide a model for emphysema in the general population
The main purpose of this study is to evaluate the efficacy, safety and tolerability of multiple doses of inhaled aclidinium bromide in moderate to severe COPD patients.