Active clinical trials for "Respiratory Tract Diseases"

The investigators expect to reveal the association between air pollution and childhood respiratory diseases through a multi-center observational study, and summarize the relationship between air pollution and childhood respiratory diseases.

Patients receiving dialysis are one of the highest risk groups for serious illness with SARS-CoV-2 infection. In addition to the inherent risks of travel to and dialysis within indoor facilities, patients receiving dialysis are more likely to be older, non-white, from disadvantaged backgrounds, and have impaired immune responses to viral infections and vaccinations. Universal testing offered at hemodialysis facilities could shield this vulnerable population from exposure, enable early identification and treatment for those affected, and reduce transmission to other patients and family members. In this pragmatic cluster randomized controlled trial as part of NIH RADx-UP Consortium, we will randomize 62 US Renal Care facilities with an estimated 2480 patients to static versus dynamic universal screening testing strategies. Static universal screening will involve offering patients SARS-CoV-2 screening tests every two weeks; the dynamic universal screening strategy will vary the frequency of testing from once every week to once every four weeks, depending on community COVID-19 case rates. We hypothesize that patients dialyzing at facilities randomized to a dynamic testing frequency responsive to community case rates will have higher test acceptability (primary outcome), experience lower rates of COVID-19 death and hospitalization, and report better experience-of-care metrics.

This study will collect fluid and tissue specimens from the lungs and nose of healthy people and people with a history of lung infections. The specimens will be examined for differences between the two groups that may be associated with susceptibility to certain infections. Healthy normal volunteers and people with a history of lung infections between 18 and 75 years of age who are followed at NIH may be eligible for this study. Participants undergo the following procedures: Medical history and physical examination. Blood and urine tests. Electrocardiogram (ECG) and chest x-ray. Treadmill exercise stress test (for people over 45 years old with a history of chest pain or ECG abnormalities). Bronchoscopy: The subject s nose and throat are numbed with lidocaine and a sedative is given for comfort. A thin flexible tube called a bronchoscope is advanced through the nose or mouth into the lung airways to examine the airways carefully. Fluid collection during the bronchoscopy using one of the following methods: Bronchoalveolar lavage: Salt water is injected through the bronchoscope into the lung and immediately suctioned out, washing off cells lining the airways. Bronchial brushings: A brush-tipped wire enclosed in a sheath is passed through the bronchoscope and a small area of the airway tissue is gently brushed. The brush is withdrawn with some tissue adhering to it. Endobronchial biopsies: Small pinchers on a wire are passed through the bronchoscope and about 1 to 2 millimeters of tissue is removed. Nasal scrape: A small device is used to scrape along the inside of the nose to collect some cells.

To demonstrate the clinical performance of the NeuMoDx™ FluA/FluB/RSV/SARS-CoV-2 Assay on the NeuMoDx Systems by determining clinical sensitivity and specificity of the Assay.

The primary objective of this study is to evaluate the performance of the Ion Endoluminal System with real-world use for pulmonary lesion localization or biopsy.

NSHDS (Northern Sweden Health and Disease Study) is an umbrella term for a prospective biobank with related survey data. The sample collection consists of three subcohorts, Västerbotten Intervention Programme (VIP), Mammography Screening Project (MA) and MONICA (MONItoring of Trends and Determinants in CArdiovascular Disease). The blood samples are stored at the Northern Sweden Biobank.

People who may be at increased risk of lung cancer due to age and smoking history will be invited to participate in this international study to determine the best way of using computed tomography (CT) of the chest to screen for early lung cancer. Overseas data show that CT screening (screening tests can find diseases early, when they're easier to treat) can reduce deaths from lung cancer and this study will help determine who is most likely benefit from screening.

It is widely described in the literature that exercise training improves patients' exercise tolerance, quality of life, symptoms, anxiety and depression, regardless of the location. Despite overwhelming evidence of the benefits of exercise training, only a very small percentage of eligible people have ever completed a program. Alternative modes of exercise training are needed to improve equity of access for patients with chronic respiratory disease. So TeleRehabilitation, using information and communication technologies to provide distance exercise training services, may be an answer.

This is a prospective, observational cohort registry that aims to collect data on pulmonary structure and function in healthy people and those with respiratory disease, using structural and functional pulmonary 1H-MRI and hyperpolarized 129Xe-MRI. Outcome measures generated from MRI may include but are not limited to measures of regional ventilation, pulmonary microarchitecture, and regional gas exchange. Additionally, one of the goals of the registry is to facilitate the development of novel image analysis techniques that have not yet been invented. These data will be stored along with demographic data, clinical data, and pulmonary function testing (PFT) data. This is an open registry. Eligible local and international investigators/institutions can apply for access.

Development of a new patient reported outcome measure (PROM) that will measure the daily burden of gastrointestinal symptoms over the previous 24 hour period for people with cystic fibrosis.