View clinical trials related to Lung Diseases.
Filter by:Transbronchial cryobiopsy carries a higher chance of establishing pathological diagnosis in diffuse parenchymal lung disease (DPLD) than traditional transbronchial forceps guided biopsy. It is a novel technique capable of obtaining large, high-quality samples of lung tissue in a minimally invasive manner. This procedure may decrease the need for surgical lung biopsy in 75% of cases. However, there is an increased risk of pneumothorax and airway bleeding compared to traditional transbronchial forceps guided biopsy. Several strategies are used by practitioners of this technique to mitigate the risks of significant bleeding and pneumothorax. These include prophylactic placement of an endobronchial blocker, the use of fluoroscopy guidance, instillation of cold saline to promote vasoconstriction, and establishment of a secure airway with endotracheal tube placement or rigid bronchoscopy . Vanderbilt University Medical Center is one of the most active centers in terms of cryobiopsies performed as part of the diagnostic workup of DPLD. Currently all transbronchial cryobiopsies here are performed under fluoroscopic guidance, with endotracheal tube intubation and endobronchial blocker placement. Despite these precautions, post biopsy bleeding complications occur and can substantially lengthen the duration of the procedure and occasionally expose patients to procedural complications. Radial ultrasound has been well utilized to define anatomy of peripheral lung and localization of peripheral pulmonary nodules. We postulate that using radial ultrasound to identify peribronchial lung parenchyma with low vascularity will mitigate the risk of hemorrhage during peripheral lung cryobiopsy in patients with DPLD and hence improve patient safety.
The aim of this study is to identify whether actively induced dynamic hyperinflation can cause left-ventricular diastolic dysfunction in healthy male subjects in order to explore the mechanisms of developing cardiac dysfunctions in patients with COPD.
Chronic Obstructive Pulmonary Disease (COPD) is a chronic respiratory disease characterized by persistent airflow limitation. The patients are suffering dyspnea year by year, resulting in the decreased exercise tolerance and quality of life. Patients with COPD often have both inspiratory muscles and expiratory muscle dysfunction. Respiratory muscle training was one of the widely used pulmonary rehabilitation method in COPD patients. Respiratory muscle training include inspiratory training ,expiratory training and concurrent inspiratory and expiratory muscle training . Both of the training methods are effective. However, the effects of these different types of respiratory muscle training method on the respiratory physiology and neural respiratory drive of COPD are still unclear. Therefore, the purpose of this study was to investigate the different effects of these respiratory muscle training methods on respiratory mechanics and central drive in COPD patients. Besides,the effect of the different respiratory muscle training methods was compared between patients with and without respiratory muscle weakness.
To demonstrate differences in tidal breathing patterns measured by SLP(Structured Light Plethysmography) between healthy subjects and COPD (chronic obstructive pulmonary disease). The correlation between SLP parameters and standard lung function parameters measured by body box and spirometry will also be assessed. Trends in SLP breathing patterns between the different GOLD (Global Initiative for Chronic Obstructive Lung Disease) stages of COPD, and between those and healthy subjects, will be investigated to assess whether SLP can detect differences between groups.
Patients with COPD (chronic bronchitis and/or emphysema) are known to be at an increased risk of heart disease and death due to heart attacks. There are several possible reasons for this, one of which is an increased tendency of the blood to clot, that can give rise to blood clot formation in the coronary arteries, and lead to heart attack. Medications such as Aspirin and another new blood thinning tablet called Ticagrelor are already used for patients with heart attacks. Given that patients with COPD are at higher risk of heart attack, the investigators wish to see if these tablets that can prevent blood clot formation in heart arteries might also prevent heart attacks happening in COPD patients. The investigators hope to understand the effects by measuring clotting and inflammation in the blood. All patients will be followed up for 6-months. In addition the investigators wish to study COPD patients who do not have a high risk of developing future heart problems using the QRISK score to study their well being over a 1 year period to see if they might also benefit from blood thinning medications.
This study is designed to compare the capabilities of two novel imaging techniques: polarized perfluorinated gas mixed with oxygen, and hyperpolarized xenon mixed with N2 to detect changes in lung ventilation using MRI.
The primary purpose of this study is to evaluate lung function and health related quality of life (HRQoL) after 84 days of treatment with a single inhaler triple therapy combination of FF/UMEC /VI [100/62.5/25 microgram (mcg)] once daily via ELLIPTA® compared with a multiple inhaler combination therapy of Symbicort Metered Dose Inhaler (MDI) (budesonide/formoterol 320/9 mcg) twice daily plus Spiriva HandiHaler (tiotropium 18 mcg) once daily. The study will inform healthcare providers that subjects can be effectively and safely switched to FF/UMEC /VI single inhaler therapy from a multiple inhaler triple therapy regimen of Symbicort MDI and Spiriva Handihaler. Eligible subjects will enter a 4-week run-in period during which they will be administered budesonide/formoterol (320/9 mcg) twice daily plus tiotropium (18 mcg) once daily plus placebo via ELLIPTA. Following the run-in period, subjects will be randomized to receive one of the following study treatments for 84 days: 1) FF/UMEC /VI 100/62.5/25 mcg via ELLIPTA once daily in the morning plus two inhalations of placebo to match budesonide/formoterol via MDI, twice daily plus placebo to match tiotropium via HandiHaler once daily in the morning or 2) Budesonide/formoterol 320/9 mcg via MDI, twice daily plus tiotropium 18 mcg via HandiHaler once daily in the morning plus placebo via ELLIPTA once daily in the morning. Subjects will then enter a one week follow-up period. The total duration for a subject in the study will be approximately 17 weeks. ELLIPTA is a registered trademark of the GlaxoSmithKline group of companies.
The primary purpose of this study is to evaluate lung function and health related quality of life (HRQoL) after 84 days of treatment with a single inhaler triple therapy combination of FF/UMEC/VI [100/62.5/25 microgram (mcg)] once daily via the ELLIPTA™ compared with a multiple inhaler combination therapy of Symbicort Metered Dose Inhaler (MDI) (budesonide/formoterol 320/9 mcg) twice daily plus Spiriva HandiHaler (tiotropium 18 mcg) once daily. The study will inform healthcare providers that subjects can be effectively and safely switched to FF/UMEC/VI single inhaler therapy from a multiple inhaler triple therapy regimen of Symbicort MDI and Spiriva Handihaler. Eligible subjects will enter a 4-week run-in period during which they will be administered budesonide/formoterol (320/9 mcg) twice daily plus tiotropium (18 mcg) once daily plus placebo via ELLIPTA. Following the run-in period, subjects will be randomized to receive one of the following study treatments for 84 days: 1) FF/UMEC/VI 100/62.5/25 mcg via ELLIPTA once daily in the morning plus two inhalations of placebo to match budesonide/formoterol via MDI, twice daily plus placebo to match tiotropium via HandiHaler once daily in the morning or 2) Budesonide/formoterol 320/9 mcg via MDI, twice daily plus tiotropium 18 mcg via HandiHaler once daily in the morning plus placebo via ELLIPTA once daily in the morning. Subjects will then enter a one week follow-up period. The total duration for a subject in the study will be approximately 17 weeks. ELLIPTA is a registered trademark of the GlaxoSmithKline group of companies.
Lower respiratory tract infection is the most common cause of acute exacerbations of chronic obstructive pulmonary disease (AECOPD). Patients diagnosed with pneumonia in addition to an AECOPD experience more severe clinical and laboratory disease manifestations, increase in-hospital morbidity and worse outcome. Clinicians have sought for new biomarkers that together with clinical assessments can improve the diagnostic accuracy of pneumonia in patients with AECOPD.The aim of the present study is to compare the accuracy of calprotectin with procalcitonin (PCT), C-reactive protein (CRP) and white blood cell count (WBC).
COPD is a progressive disease characterized by increasing obstruction to airflow and the progressive development of respiratory symptoms including chronic cough, increased sputum production, dyspnea and wheezing. Once-daily triple therapy of an Inhaled Corticosteroid/ Long-acting Muscarinic Receptor Antagonists/ Long Acting Beta-Agonist (ICS/LAMA/LABA) that is combination of FF/UMEC/VI in a single device is being developed with the aim of providing a new treatment option for the management of advanced COPD. The primary purpose of this study is to evaluate lung function and health related quality of life (HRQoL) after 84 days of treatment with a single inhaler triple therapy combination of FF/ UMEC/VI once daily via the ELLIPTA® dry powder inhaler (DPI) compared with tiotropium once daily via HANDIHALER®, in subjects with COPD. Subjects will be randomized 1:1 to receive FF/UMEC/VI or tiotropium in the morning for 84 days. Subjects will also receive albuterol/salbutamol as a rescue therapy throughout the study. Approximately 848 subjects with advanced COPD will be enrolled in the study. The total study duration will be approximately 17 weeks including, 4-week run-in period, 12-week treatment period and a 1-week follow-up period. ELLIPTA is a registered trademark of GlaxoSmithKline (GSK) group of companies. HANDIHALER and RESPIMAT are registered trademarks of Boeringher Ingelheim.