View clinical trials related to Chronic Obstructive Pulmonary Disease.
Filter by:The main aim is to study correlations between Peak inspiratory flow measured during a spirometry (PIFspiro) and Peak inspiratory flow measured over a pre-set resistance (PIFresist) in COPD patients and severe asthma patients. PIFresist will be measured using 5 different resistances, representing all DPI's relevant for the treatment of obstructive lung diseases. If this shows a distinct relationship between PIFspiro and PIFresist, PIFspiro cut-off points will be sought in an attempt to predict which patients are likely to be able to produce optimal flows for DPI use. If successful, this will make the actual measurement of PIFresist redundant in clinical practice. Also the relationship between PIFresist and device internal resistance in addition to PIFspiro (which corresponds to a very low resistance) will be examined.
The effectiveness of combined bronchodilator and exercise training on improving exercise capacity has been reported in COPD. However, little is known about effect of respective treatment in a real-time monitoring. Investigators applied wearable devices in monitoring continuously in COPD patients under treatment of combined dual bronchodilator and exercise training and research on associated inflammatory biomarkers profiles change
Chronic obstructive pulmonary disease (COPD) is a public health problem with great morbidity. The main therapeutic strategy is inhalers. The objective of this study is to determine the efficacy of an educational intervention in the use of inhalers in patients with COPD including ventilatory re-education and video recordings of the patients themselves.
Hyper polarized Xenon-129 MRI will be directly compared to a radioactive Xe-133 scintigraphy to detect defects in lung ventilation from airflow limitation. This study is conducted as a pilot study with intention to conduct a larger clinical trial.
Patients with COPD, in addition to daytime symptoms, may suffer from nocturnal disturbances. The frequency of nocturnal problems has been reported to be higher in COPD than in the general population and it currently affects up to 50% of patients. The CASIS questionnaire includes 7 questions and it has been recently validated as an objective tool to evaluate nocturnal symptoms in patients with asthma and COPD. The present study aims to study the validity of the CASIS questionnaire as a predictor of sleep quality measured by objective polysomnographic parameters.
This study is to assess the prevalence of Asthma COPD Overlap in subjects with diagnosed asthma and chronic obstructive pulmonary disease (COPD). The subsequent morbidity and mortality of subjects will be followed up for 3 years.
This a single center non-randomised non-sham controlled intervention study evaluating the effectiveness and safety of endoscopic lung volume reduction by endobronchial valves
The purpose of this study is to learn about using the imaging to make images of the lungs and nose with the long-term goal of the research leading to potential treatments and new therapies for patients with cystic fibrosis.
Chronic obstructive pulmonary disease (COPD) is a frequent disease, mainly linked to tobacco smoking leading to chronic respiratory failure. It is characterized by an inflammatory spate with modification of protease-antiprotease and oxidant-antioxydant balances. Local modifications are associated with systemic changes. Many occupational factors have been associated with an excess of COPD in epidemiological studies, however without identification of any specific clinical or biological phenotype. Pathophysiological pathways involved in COPD might be different according to etiologic agents. Therefore, it is important to focus research on blood biomarkers associated with some well-characterized occupational COPD. The objectives of MB2PROF project are: 1. To build the first multicentric cohort of cases of occupational COPD, with collection of plasma and DNA samples, 2. To study the evolution of clinical and lung function parameters of occupational COPD in comparison with non occupational COPD during a follow-up study, 3. To identify biological phenotypes of COPD associated to a given etiological agent. The methodology includes: 1. The constitution of a cohort with a clinical and biological follow-up during 5 years. Subjects will be recruited in 7 occupational diseases departments, with the collaboration of Pneumology departments. Four groups of males subjects will be recruited (G1 : occupational COPD (6 groups of 60 subjects, corresponding to 6 groups of occupational agents) ; G2 : non occupational COPD (n = 60) ; G3 : subjects with similar occupational exposure to G1 subjects but without COPD (6 groups of 60 subjects) ; G4 : subjects free of occupational exposure and of COPD (n = 60)), paired on tobacco-smoking and age. For each subject, information on clinical data, lung function parameters, occupation history and blood samples will be collected. 2. The identification of biomarkers, using proteomic and genomic approaches according to subgroups (with different etiologies) of occupational COPD, 3. The study of molecular pathways identified in these subgroups, with in vitro and in vivo studies The MB2PROF project is an original and ambitious multidisciplinary and translational project. The constitution of well-characterized COPD cases cohort should allow the identification of biomarkers and molecular pathways associated with some subgroup of subjects, and improve the knowledge of mechanisms involved.
High-intensity noninvasive positive pressure ventilation (NPPV), which can well improve the gas exchange and reduce the work of breathing of patients, is a new strategy targeted at maximally reducing arterial carbon dioxide. However, no definitive conclusions have been drawn to decide whether high-intensity NPPV is the best setting for treating patients with chronic hypercapnic COPD. For now, no unified method for setting up high-pressure NPPV has been established. Most of the trials utilized gradually increased inspiratory positive airway pressure depending on the patient's tolerance. However, from a respiratory physiology point of view, excessive inspiratory positive airway pressure may lead to lung hyperinflation, increased intrinsic positive end expiratory pressures, increased oxygen consumption, and ineffective work of breathing.Therefore, seeking a method to establish individualized high-intensity NPPV is of vital importance.