View clinical trials related to Chronic Obstructive Pulmonary Disease.
Filter by:To evaluate in patients with stable Chronic Obstructive Pulmonary Disease (COPD) the efficacy of statins (simvastatin) on: (1) endothelial function; (2) systemic inflammation; (3)BODE (B: body mass , O: bronchial obstruction, D: dyspnea and, E: exercise tolerance) index; (4) Uric acid; and, (5)vascular growth factors. Design: a 12 weeks randomized (1:1), double-blind, placebo control study. Population: 18 males with stable COPD between 40-80 years of age, exsmokers, with Forced expiratory volume in one second (FEV1) between 30 and 80% predicted post-bronchodilation.
Asthma and chronic obstructive pulmonary disease (COPD) are inflammatory airway diseases. Although the clinical features of asthma and COPD may be similar, the pathogenesis of these diseases differs in many aspects. The aim of this study is: - to evaluate airway inflammation in asthma and COPD, - to evaluate airway remodeling in asthma and COPD as compared to healthy subjects, - to assess the relationship between markers of airway inflammation and airway remodeling in asthma and COPD patients. Material and methods: - mild to moderate asthma patients diagnosed in accordance with Global Initiative for Asthma (GINA) guidelines, - mild to moderate COPD patients diagnosed in accordance with Global initiative for chronic Obstructive Lung Disease (GOLD) guidelines, - healthy subjects as controls. Airway inflammation is assessed in induced sputum (IS), exhaled breath condensate (EBC), bronchoalveolar lavage fluid (BALF) and specimens from endobronchial forceps biopsy. Airway wall thickness is evaluated in high resolution computed tomography (HRCT), endobronchial ultrasound (EBUS) and basement membrane thickness (BMT) in biopsy specimens. We plan to compare airway inflammation and features of airway remodeling in asthma and COPD patients.
The purpose of this study is to evaluate the safety and efficacy of roflumilast in the real-use conditions with its registered indications.
Chronic obstructive pulmonary disease (COPD) is one of the most common diseases in the world. In a recent study, we showed that administration of levofloxacin is superior to placebo in the treatment of decompensation of COPD; it is accompanied by a substantial reduction in mortality and a significant reduction in the residence time in hospital. In Tunisia, few data are available on the epidemiology of COPD decompensation. The choice of antibiotic to be used in this situation is challenging to the clinician who must choose between traditional antibiotics (cyclins, aminopenicillins, cotrimoxazole...) and new antimicrobial agents. Recently, it has been emphasized the selection of patients for treatment according to the degree of systemic inflammation (C-Reactive Protein). Indeed, there would have a correlation between the tracheobronchial infection and elevated inflammatory markers. As the elevation of these markers is proportional to the intensity of the inflammatory reaction of the body, is based on the kinetics of these biomarkers in antibiotic treatment seems logical. Thus, C-Reactive Protein allowed not only knowing when to start antibiotics, but also through their kinetic, these markers can guide the duration of therapy and shorten the duration of antibiotic therapy: a rate cut would ensure that the antibiotic treatment was adopted. Available guidelines stated that antibiotic treatment should be maintained at an average of 7 to 10 days while some studies showed no clinical inferiority of courses as short as 3 days. Further reduction of the duration of antibiotherapy was even suggested in order to reduce the risk of adverse events and the pressure that drives bacterial resistance. Hence, we conducted this study using an algorithm to comprehensively evaluate the role of CRP-guided antibiotic prescription in optimizing treatment duration in AECOPD.
1. Background Chronic Obstructive Pulmonary Disease (COPD) is an inflammatory disease of the lungs, which is most commonly caused by smoking. It is characterized as not fully reversible airflow limitation, chronic cough and dyspnoea. Being the fourth leading cause of death worldwide, COPD is an important public health challenge and can be prevented and treated. It is estimated that at least 400,000 individuals in Switzerland are affected by COPD. This number may increase in the coming years due to increasing nicotine consumption. In response to the rising trend, the Global Initiative for Chronic Obstructive Lung Disease (GOLD) has established new guidelines on the global strategy for diagnosis, management and prevention of COPD. Systematic diagnosis and stratification are crucial for effective treatment measures. As COPD is an irreversible and progressive disease, its treatment aims an early detection and better management, which leads preventing progression. Disease management programs have shown that only patients who understand their exacerbation symptoms can benefit. Moreover, it is a major goal to improve health-related quality of life by reducing symptoms and decelerating disease progression. Spirometry is the golden standard for the diagnosis of COPD, to assess the severity of the obstruction, and as a guide for optimal therapeutic measures. 2. Aim of the study The objective of this project is to establish a COPD cohort database to allow high quality research on diagnosis, treatment, complication and progression of COPD on long-term course. Spirometry should be used consistently for the diagnosis and the monitoring of the development of the disease. Using collected information such as spirometric data, disease progression's data and therapeutic measures should help improve the management and self-management of the patients. 3. Methods 3.1 Study design We are conducting a prospective cohort study, based on COPD patients from northern and western Switzerland, who are managed under primary care setting. Patients with mild to very severe COPD (GLOD stages I-IV) are enrolled in the study. Currently, 67 General practitioners (GPs) are participating in our Study. Each GP recruits 1-20 patients with presumed mild to very severe COPD according to criteria of the Global Initiative for Chronic Obstructive Lung disease [GOLD]. Patients' follow-up-visits occurs at 6-month intervals; their history, symptoms and examination status is recorded. Data is entered into an online database either by the physicians or by study team after receiving the collected data questionnaires by facsimile. Data collection includes demographic data, physical examination, spirometric parameters, medical treatment and exacerbation history besides death. A spirometer (EasyOne™, ndd Medizintechnik AG, Zürich, Switzerland) is used to assess lung function. All participating physicians were instructed on the usage of the spirometer and on how to complete spirometry according to the guidelines. For the assessment of the severity of COPD, we use the spirometric data provided by the GPs. The COPD severity is interpreted according to criteria of the GOLD committee. 3.2 Patient population Patients with newly diagnosed or existing COPD, who are managed in primary-care practices. 3.3 Inclusion criteria - Tiffenau (FEV17FVC) < 70 without reversibility (Increase in FEV1 after inhalation of a bronchodilator <200 ml and <12%). - Age: > 40 years - Both genders - Smokers or ex-smokers of at least 20 pack years. - Informed consent. 3.4 Archiving and Data Retention All study-related records such as medical records, informed consent documents, information regarding participants who discontinued, and other pertinent data will be maintained and therefore retained as long as required by the applicable Swiss regulatory requirements (10 Years). 3.5 Data security The complete data of the study will be entered anonymously into a database. The data is password-protected and can only be accessed by investigators and study members. 4. Publication and authorship 4.1 Publication policy Authorship credit is based on: 1. Substantial contribution to conception and design, acquisition of data, or analysis and interpretation of data. 2. Drafting the article or revising it critically for important intellectual content. 3. Final approval of the version to be published. Each author should have participated sufficiently in the work to take public responsibility for appropriate portions of the content.
Cognitive impairment is a known consequence of cerebral small-vessel disease. Moderate to severe cognitive impairment has been shown in up to 60% of certain individuals with COPD and is likely to profoundly influence an individual's ability to manage their disease. In addition to cerebral small vessel damage and cognitive dysfunction, other organs such as the heart, kidneys, and retina are likely to be susceptible to small-vessel damage in COPD. Several large population studies have shown that COPD is a significant independent risk factor for myocardial infarction, with the effect most marked in early, mild disease. We propose to compare non-invasive MR brain imaging of white matter microstructure (diffusion tensor), cerebral perfusion (arterial spin labelling) and accumulated cerebral small vessel disease (cerebral microbleeds), in COPD patients to smokers without COPD. In addition we plan to explore mechanisms of cerebral small vessel disease in COPD by looking for associations between arterial stiffness, end organ vascular damage and cognitive function.
The purpose of this study is to assess the safety and tolerability of single doses of LAS190792 administered by inhalation to patients with mild persistent asthma and moderate to severe chronic obstructive pulmonary disease (COPD) and also to assess the ability of LAS190792 to produce bronchodilation (opening of the airways).
This study will assess Specialized Community Disease Management (SCDM), an intervention which employs various evidence-based strategies to engage substance using co-morbid patients while in the hospital and follow them into the community via an empirically validated telephone approach as well as contact with a trained community health worker peer specialist. The investigators will first adapt and refine the core SCDM intervention with patient, provider, and stakeholder input through an active community advisory board. The investigators will then conduct a three-year, randomized controlled trial of 222 patients enrolled prior to hospital discharge who are diagnosed with congestive heart failure, pneumonia, acute myocardial infarction, chronic obstructive pulmonary disease, diabetes mellitus, or end-stage renal disease, and a substance use disorder (SUD). Patients will be randomized to either the SCDM intervention or Treatment as Usual (TAU), in which a team of nurse navigators and community health workers follow patients (primarily by telephone) for 90 days post-discharge, but do not address the specific needs of SUDs. The investigators will test the following four hypotheses: (1) patients randomized to SCDM will demonstrate larger reductions in substance use measured by urine-confirmed self-reported days using over the 6-month follow-up compared to patients randomized to TAU, (2) patients randomized to SCDM will attend more specialty substance abuse intervention and treatment sessions over the 6 month follow-up than patients randomized to TAU, (3) patients randomized to SCDM will demonstrate reduced HIV transmission risk behaviors and greater rates of HIV testing over the 6 month follow-up than patients randomized to TAU, and (4) patients randomized to SCDM will experience fewer days of rehospitalization and use of acute emergency services than patients randomized to TAU.
This study plans to learn more about pulmonary complications of human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS). Even though antiretroviral therapy (ART) has dramatically decreased the number of opportunistic infections and deaths in HIV infected patients, pulmonary complications (including chronic obstructive pulmonary disease (COPD) development and pneumonias resulting in decreased lung function) of HIV/AIDS continue to be a major cause of morbidity and mortality in this population. The mechanisms underlying the increased risk of COPD and decreased lung function in HIV infected individuals is not well understand and needs to be studied. The investigators hypothesize that the immunoregulatory consequences and immunosuppressive lung milieu secondary to HIV and cigarette smoke combine to increase the risk of lung infection and injury in HIV infected smokers, hastening the development of COPD. The mechanisms will be directly tested using blood and bronchial alveolar lavage (BAL) cells from smokers and nonsmokers with and without HIV infection.
The purpose of this study is to evaluate safety of Targeted Lung Denervation (or TLD) in patients suffering from moderate to severe COPD. It is hypothesized that TLD will have a similar safety profile and improved physiological and functional outcomes to a sham-control.