View clinical trials related to Lung Diseases, Obstructive.
Filter by: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.
Study title - A randomized, open label, multicenter, phase 4 study for the comparison of efficacy of tiotropium plus salmeterol/ fluticasone propionate compared with tiotropium alone in COPD patients Study objectives - To investigate clinical outcomes of combining tiotropium with fluticasone propionate/salmeterol (FSC) 250/50μg bid compared with tiotropium alone in patients with moderate or severe COPD in Korea Study Design - Randomized, open-label, multicenter, parallel-group, two group study Study assessment - FEV1 - Inspiratory capacity (IC) - History of COPD exacerbation - History of hospitalization for COPD exacerbation and all causes - QoL (SGRQ-C)
Multiple dose safety and pharmacokinetics in healthy male subjects