View clinical trials related to Chronic Bronchitis.
Filter by:Cigarette smoking is the major risk factor for chronic obstructive pulmonary disease (COPD, commonly known as chronic bronchitis and emphysema). Despite this clear link, only 15-20% of smokers develop COPD suggesting that genetic factors affect the lung's susceptibility to the stress of cigarette smoke. The cells lining the airways (epithelium) and cells that help defend the lung (alveolar macrophages) of smokers develop gene expression changes that are different from that of nonsmokers. In the investigators' previous studies they have demonstrated that there are greater than 200 genes that are responsive to cigarette smoke in these cells. But the investigators do not know whether the gene expression is static or changes as a function of time. Genes that show significant changes over time may be relevant to the progression of the disease. Even though quitting smoking reduces the rate at which the lungs decline, many-smokers still go on to develop COPD. This study will provide insights into the natural history of smoking-related gene expression of the lung cells in health and disease.
The observation period for each patient covered an initial treatment period with Avelox® plus optional 2 long-term follow-up periods (6 and 12 months).For each patient, the physician documented data at any initial visit (baseline) and at least one short-term follow-up visit (=initial treatment period).Optionally, long-term follow-ups (6 and 12 months) were documented, and a patient questionnaire was filled in.
The purpose of this research is to understand the properties of mucus in persons with COPD, specifically Chronic Bronchitis. We hypothesize that those with Chronic Bronchitis have dehydrated mucus, and thus have a harder time coughing it out of their lungs. This leads to a greater vulnerability for lung infection, inflammation and airflow obstruction. Ultimately, our goal is to understand how mucus dehydration contributes to the progression of COPD/Chronic Bronchitis so that better therapies and interventions can be developed for future generations.
In this study data of patients with moderate or severe acute exacerbations of chronic bronchitis (AECB) were collected. There were two different cohorts which were compared (Moxifloxacin and other antibiotics) concerning effectiveness and tolerance. It was a prospective study which was accomplished in 100 ambulatory practice offices.
This study is a local, prospective, open-label, company-sponsored, non interventional, multi-center study. Patients documented must suffer from an acute exacerbation of chronic bronchitis and take at least one dose of Moxifloxacin injection.The primary objective is to obtain clinical effectiveness and safety data of Moxifloxacin injection in the treatment of acute exacerbations of chronic bronchitis in patients in whom Moxifloxacin was routinely prescribed. The secondary objective is to find out the possible correlation between the risk factors (sex, smoking, number of previous exacerbations, etc) and AECB, the different treatment effectiveness according to Anthonisen classification. This study will also collect the data of pathogens by sputum culture and the defervescence time of Moxifloxacin injection in treating Acute Exacerbations of Chronic Bronchitis (AECB).
Airway macrophage impairment is a central feature in the immunopathogenesis of chronic obstructive pulmonary disease, regardless of smoking status.
Does tiotropium effect the cough reflex in patients with COPD and chronic bronchitis.
The objective of this global non-interventional study is to evaluate the impact of Acute Exacerbation of Chronic Bronchitis(AECB) on the patient and the community as well as the safety and effect of a treatment with Moxifloxacin tablets in daily life clinical practice. This includes data on the course of symptom relief, speed of return to normal daily life activities as well as records on adverse events. This study will be performed in accordance with international guidelines like EMEA (EMEA, EUDRALEX Volume 9A, Pharmacovigilance for Medicinal Products for Human Use) as well as local laws.
The purpose of this study is to create a patient registry to collect and analyze information on subjects treated with the CryoSpray Ablation™ System post-510K approval.
The research plan proposes to develop translational studies in humans that will identify host susceptibility factors that confer vulnerability to the prototypal air pollutant, ozone. Ozone is a ubiquitous urban air pollutant and associated with increased emergency room visits, and co-associates with other air pollutants, to increase mortality in high risk groups (cardio-pulmonary disease) of the population.The results will have significant impact upon and aid in understanding mechanisms of pro-oxidant lung injury, airway hyperresponsiveness, and adverse health effects, that occur during and following exposure to inhalable airborne irritants.