Active clinical trials for "Lung Diseases"

The purpose is to evaluate exercise performance in patients with Chronic Obstructive Pulmonary Disease (COPD) after supplementing with higher doses of dietary NO3-, compared to previous studies, as beetroot juice for seven days. The secondary purpose is to evaluate oxygen consumption of submaximal cycling, amendments in blood pressure, and physical activity level.

Little is known about bronchoalveolar lavages performed for cytological assessment during bronchial fibroscopy in critically ill patients. Frequency of use, indications, actual contribution to diagnosis and therapeutic decision, and complications have not been extensively assessed. The primary objective of this multi center, prospective, observational study is to describe the frequency of use of bronchoalveolar lavages for cytological assessement in critically ill patients, identify their indications, assess their contribution to diagnosis and therapeutic decisions, and estimate the frequency of induced respiratory events.

For effective drug delivery using inhalation route, it is important to use the inhalers correctly. This open-label study will evaluate the error rates during the use of ELLIPTA DPI, alone or in combination, in comparison with other DPIs. The study aims to provide clinical evidence in subjects with COPD that the reduced number of steps required to use the ELLIPTA DPI could result in fewer errors made by subjects, and therefore a more consistent treatment. Approximately 450 subjects prescribed with either of RELVAR® ELLIPTA, ANORO® ELLIPTA, INCRUSE® ELLIPTA, SYMBICORT® TURBUHALER®, SERETIDE® DISKUS®, SPIRIVA® HANDIHALER®, ULTIBRO® BREEZHALER® or SEEBRI® BREEZHALER will be included in the study and will have 2 clinical visits. At Visit 1, subjects will take their maintenance DPIs and the critical and overall errors made by subjects will be assessed. After the assessment, subjects will be instructed on correct use or informed of their correct use of their DPIs. The total duration of the study is approximately 6 weeks. ELLIPTA, SERETIDE and DISKUS are registered trademarks of the GSK group of companies. SYMBICORT and TURBUHALER are registered trademarks of the AstraZeneca group of companies. SPIRIVA and HANDIHALER are registered trademarks of Boehringer Ingelheim Pharmaceuticals. ULTIBRO, BREEZHALER and SEEBRI are registered trademarks of the Novartis group of companies.

The primary objective of this study is to to verify the feasibility of obtaining and comparing two epithelia in two populations based on the following experiments: Differentiation of an Induced Pluripotent Stem cell (iPS) clone derived from cutaneous biopsy in a population of heavy smokers (plus patients with chronic obstructive pulmonary disease) in order to obtain differentiated bronchial epithelia in vitro. For each of these same patients, generation of bronchial epithelium in vitro from bronchial biopsy using human bronchial epithelial cells (HBECs) in air-liquid interface (ALI) cultures.

In a randomized, sham-controlled trial the investigators will test whether supplemental oxygen given during cardiopulmonary exercise testing will improve exercise performance and physiological parameters in patients with chronic obstructive pulmonary disease.

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 study is an interventional, multicentre, prospective, randomized, controlled, single-blind, comparative trial of two processes for adjusting the inhibitor of calcineurin (CNI) dosage in lung transplant recipients. Recipients will be stratified by transplant center and according to the underlying lung disease (affected with cystic fibrosis or not) and will be randomized to either evaluation of calcineurin activity (CN-a) in combination with CNI blood levels versus CNI blood levels alone in a 1:1 ratio. The objective is to compare the proportion of acute rejection that has required a specific curative treatment at 6 months after transplantation between patients in the two groups.

Many children who are born medically fragile due to prematurity, multiple congenital abnormalities or an acquired insult (i.e. cardiac, neurologic, etc.) may require tracheostomy tube placement due to need of chronic respiratory support. Patients on tracheostomy tubes are often unable to vocalize, causing a delay in speech development and poor speech. To help restore normal phonation and promote language development in young pediatric patients with tracheostomies, speaking valves are used. Previously it was shown that the Passy-Muir speaking valve was safe to use during sleep in children by showing there were no adverse cardiopulmonary events seen. One objective measurement that was not evaluated was trans-tracheal pressure manometry. The purpose of this study is to continue to validate the safety of the Passy-Muir speaking valve while asleep, with the use of trans-tracheal manometry by comparing expiratory pressure manometry while the patient is awake and asleep.

It has been reported that nearly half of the patients who are hospitalized for Covid-19 pneumonia have on admission old age or comorbidities. In particular, hypertension was present in 30% of the cases, diabetes in 19%, coronary heart disease in 8% and chronic obstructive lung disease in 3% of the patients. Amazingly, in the two major studies published in the Lancet (Zhou F et al Lancet 2020) and in the New England Journal of Medicine (Guan W et al 2020), the weight of the subjects as well their body mass index (BMI) were omitted. However, obesity, alone or in association with diabetes, can be a major predisposition factor for Covid-19 infection. The primary end-point of our prospective, observational study is to assess the recovery rate in patients with diagnosis of Covid-19 pneumonia. Among the other secondary end-points, we intend to find the predictors of the time to clinical improvement or hospital discharge in patients affected by Covid-19 pneumonia.

To investigate the relation the nreural drive and intrinsic positive end-expiratory pressure(PEEPi) of the chronic obstructive pulmonary disease(COPD) patients with respiratory failure.In present study the PEEPi of COPD patients was increased by increasing the resistance of the respiratory system, the change of the neural drive was recorded.