Active clinical trials for "Bronchitis, Chronic"

The Purpose of A Multicenter, Randomized, Double-blind, Placebo-controlled to Evaluate the Efficacy, Safety and Pharmacokinetics of N02RS1 600mg and 1,200mg per day in Patients With acute and acute exacerbation of chronic bronchitis for 7 days.

Bronchiectasis is a chronic pulmonary disease characterized by an irreversible dilatation of the bronchi. The current view of the pathogenesis of bronchiectasis considers initial colonization of the lower respiratory tract by different microorganisms as the first step leading to an inflammatory response characterized by neutrophil migration within the airways and secondary secretion of a variety of tissue-damaging oxidants and enzymes such as neutrophil elastase and myeloperoxidase. Persistence of microorganisms in the airways because of impairment in mucus clearance may lead to a vicious circle of events characterized by chronic bacterial colonization, persistent inflammatory reaction, and progressive tissue damage. The exact prevalence of bronchiectasis in COPD patients is not known. It would be important to assess the prevalence, the kind of bronchiectasis and the bacterial colonisation. These are all important features that can be related to the natural history of COPD and to the therapeutic management of patient with COPD and bronchiectasis. Recent data indicate that macrolide long-term treatment and inhaled steroids therapy are both associated with a reduced rate of exacerbation, bronchial colonization and inflammation The present study will address, on a relatively large number of patients, the prevalence of bronchiectasis in COPD subjects using a multislice CT scan technique applied in all the units and centrally analysed by Unit 2 and 4. This analysis will determine the presence and the morphology of bronchiectasis. Bacterial colonization and inflammatory parameters will be evaluated on blood and exhalate bronchial condensate. Concerning bacterial colonization molecular biology techniques (Qualitative PCR and quantitative real time PCR) will be applied. ELISPOT technique for the evaluation of specific immune response will be used.Electron and optical microscopy techniques will be applied on bronchial biopsy samples obtained in a subgroup of patients enrolled. During the second study year, a randomized trial on patients with bronchiectasis will be performed. Patients will be randomized to receive a macrolide or inhaled steroids or standard of care for 6 months with a follow-up of 6 months. All the inflammatory, microbiologic and functional parameters described above will be recorded. A clinical and functional evaluation will be applied looking to number of exacerbations, quality of life, respiratory function parameters.

The primary objective is to comparatively evaluate the isolated effects of a long-acting beta2-adrenergic (formoterol fumarate 12µg b.i.d. via Aeroliser) and combined with a long-acting anti-cholinergic (tiotropium bromide 18µg o.d via Handihaler) on breathlessness, dynamic hyperinflation and exercise tolerance in patients with advanced, but stable, chronic obstructive pulmonary disease. The study hypothesis is that combining long acting bronchodilators with different action mechanisms would promote synergistic effects on clinical outcomes.

The purpose of this study is to evaluate the safety and effectiveness of yoga in reducing shortness of breath in people with chronic obstructive pulmonary disease (COPD). Patients in this study must have moderate to severe COPD and be primarily limited by shortness of breath.

COPD currently afflicts 24 million US residents; the prevalence of COPD is high among Veterans. Persons with COPD have significant functional disability as a result of the disease. This project will determine whether a novel Internet-mediated walking program coupled with a pedometer can improve exercise capacity, improve health-related quality of life, and decrease the risk of acute exacerbations in persons with COPD. If successful, based on estimates that 33 to 64% of COPD patients are Internet users, the proposed exercise intervention could help over 8 million persons. The Veterans Health Administration (VHA) has a strong commitment to providing care to persons with COPD and supporting research directed at COPD-related disability. The 2012-2016 Strategic Plan of the VHA Office of Research and Development includes research in COPD rehabilitation. The proposed research addresses Rehabilitation R&D Service's current priority area of improving disabled Veterans' health-related quality of life by reducing disease burden and maximizing functional recovery.

The purpose of this research study is to examine the effects of two weeks of daily dosing of inhaled salt water mist (hypertonic saline - HS) on actual measurements of mucociliary and cough clearance in patients with the chronic bronchitis type of Chronic Obstructive Pulmonary Disease (COPD. Defective mucociliary clearance (MCC) is central to the development and/or worsening of several kinds of lung diseases, including COPD/chronic bronchitis (CB), cystic fibrosis (CF), and bronchiectasis. In each case, defective MCC leads to the development of lung infections and damage to the airways from ongoing inflammation caused by a person's inability to clear mucus from the lungs. The investigators' previous studies have shown that the administration of inhaled HS (hypertonic saline) not only acutely accelerates MCC in CF, but also that repetitive use "resets" the baseline rate of MCC within 2 weeks. It is likely that the sustained effect of HS on MCC was responsible for the ~60% reduction in the frequency of pulmonary disease exacerbations, reduced antibiotic use and improved lung function in a long-term study of HS in CF volunteers. As a result, HS has now become a standard therapy for CF lung disease and its success raises optimism that similar benefits might occur in patients with CB. In this study the investigators will use mildly radioactive particles, technetium bound to sulfur colloid, to measure and compare the sustained effects on mucus clearance of two weeks of daily dosing of 7% hypertonic saline versus a low salt control treatment for subjects with CB. We will also be collecting sputum and breath condensation to analyze for protein and inflammatory changes that might occur with exacerbations. Our long term goals are to improve our understanding of MCC in health and disease and to develop better therapies that support and/or restore MCC in patients with these diseases to reduce lung infections.

The study is a Phase 2 Study to establish the safety and efficacy of a drug called Ivacaftor (VX-770) in patients with chronic obstructive pulmonary disease (COPD), chronic bronchitis, and acquired CFTR dysfunction as detected by sweat chloride analysis. The design is a pilot, randomized (3:1, active:placebo), double-blind, placebo-controlled study. Approximately 40 subjects with COPD will be randomized.

Specific Aim: To determine the effectiveness of Roflumilast in improving i) whole right lung and ii) peripheral right lung mucociliary clearance (MCC) in patients with COPD and chronic bronchitis. Hypothesis: Roflumilast increases mucociliary clearance in patients with chronic bronchitis. Study Design: This will be a double-blinded, cross-over randomized controlled trial with 1:1 randomization of 20 individuals with chronic bronchitis. Subjects will undergo baseline MCC then will be randomized to either roflumilast or placebo x 4 weeks, then there will be a 4 week wash-out phase and a second 4 week period of roflumilast/placebo depending on initial randomization. MCC will be conducted at baseline and at the end of each 4 week medication phase.

The study will conduct with 4 comparative groups orally treated with YHD001 dose level 1(t.i.d.), YHD001 dose level 2(t.i.d.), pelargonium sidoides extract 9mL(t.i.d.) or Placebo for 7 days. The treatments will be assigned randomly to patients (n=116) with acute or chronic bronchitis.

The main purpose of this project is to establish the additional value of eccentric versus concentric exercise to optimize muscle function in patients with severe COPD. With this pilot project the investigators expect that an eccentric endurance training protocol adapted to severe COPD patients will lead to gains in muscle strength, the primary outcome, and cellular adaptation (muscle morphology and oxidative capacity, mitochondrial respiratory capacity) when compared to a concentric training approach. This information will be essential if the investigators want to design and power a randomized clinical trial that will allow assessing effectiveness of this novel rehabilitation approach.