Active clinical trials for "Respiratory Tract (Lung and Bronchial) Diseases"

Background: Drug resistant tuberculosis is a serious public health problem that threatens the health of human life and the development of society and economy. At present, the diagnosis of drug-resistant tuberculosis mainly depends on traditional drug susceptibility test. But it is limited in Mycobacterium tuberculosis slow growth speed, traditional solid drug sensitivity test usually need to 3 months to results, delay the development of drug resistance in patients with effective treatment. Probe melting curves resistance detection technology is the recent emergence of a new molecular biology and drug resistant tuberculosis detection technology, probe melting curves with different fluorescent labeled probe coverage detection specific to M.tuberculosis drug resistance determining region, through changes in the melting point of the probe hybridization, acquire mutation information of detection region, shorten detection time and detect nonuniform resistance. In this study, by selecting a nationally representative in different levels of hospitals jointly launched multi center, large sample clinical assessment, completed the comprehensive evaluation of sensitivity, specificity and health economics of drug resistant pulmonary tuberculosis, especially resistance to multidrug and extensively drug-resistant TB patients detection,in order to evaluate the rapid, accurate and economic and appropriate technology of drug resistance pulmonary tuberculosis detection. In order to accomplish the overall goal of the project, in the framework of the overall design, according to the principles of the core tasks are divided into four sub topics, namely: Sub topic 1 of the core mission is included in 3100 cases of smear positive pulmonary TB suspicious symptoms, from which selected more than 1000 cases of drug-resistant pulmonary tuberculosis patients, using MGIT liquid culture and drug sensitivity test as the gold standard,evaluate the sensitivity and specificity of probe melting curves in detction of resistance of four kinds of anti tuberculosis drug to Mycobacterium tuberculosis; Sub topic 2 core task is including at least 500 cases of culture positive pulmonary tuberculosis patients and treatment follow-up, using MGIT liquid culture and drug sensitivity test as the gold standard, evaluate the application value of probe melting curves for monitoring spectrum changes of drug resistance of Mycobacterium tuberculosis during pulmonary tuberculosis treatment. The core mission of sub topic 3 is to project implementation of hospital as the research site,acquire the cost-effect evaluation and analysis by comparing probe melting technology with Mycobacterium tuberculosis MGIT liquid culture, and drug sensitivity test with xpert MTB/RIF technology.

Leptomeningeal metastasis (LM) is one of the disastrous events when managing advanced Non-small cell lung cancer (NSCLC) due to a grave prognosis. Although intrathecal (IT) chemotherapy and brain and/or spinal axis irradiation show some effects for LM in advanced NSCLC, the prognosis is still poor with median survival less than 12-14 weeks. Epidermal growth factor (EGFR) tyrosine kinase inhibitors (TKIs) showed to be effective for LM in selected NSCLC patients in some retrospective research. Our single-center prospective research indicated that the incidence of EGFR sensitive mutations (EGFRm+) in NSCLC-LM patients was high and EGFR-TKIs showed a survival benefit for LM in EGFRm+ NSCLC patients. A multi-center prospective observational biomarker study will be started in 11 lung cancer center based on our single-center prospective research result. The aims of the study are to find predictive biomarkers for LM in advanced NSCLC, to establish EGFR-TKIs based comprehensive treatment for appropriate EGFRm+ LM cases, and to establish effective clinical assessment criteria for NSCLC-LM EGFR-TKIs treatment.

The purpose of this study is to prospectively evaluate the impact of sleep apnea on the cardiovascular morbidity and mortality of patients with end-stage renal disease.

The evidence for poor inhaler technique is both well established and observed worldwide. What is unclear from the evidence is why individuals demonstrate poor technique, despite the majority admitting to having previously had instruction on inhaler technique. The primary research question is 'Will there be a difference between post education inhaler technique scores when comparing structured education against informal education?' To try and establish why individuals use inhalers incorrectly a semi structured interview is proposed

Investigation of the differences between the levels of extracellular and intracellular nano-particles in workers exposed to environmental particles during their employment to enhance understanding the process of penetration of the particles to respiratory epithelial cells.

Gastro-oesophageal reflux (GOR) has been found to be prevalent in children with cystic fibrosis (CF)and may further worsen lung damage via reflex bronchospasm or pulmonary aspiration. Chest physiotherapy may result in increased episodes of GOR as demonstrated in children. Lung transplantation may worsen pre-existing GOR. This study will determine the prevalence, severity and significance of symptomatic and silent GOR in adults with CF before and after lung transplant using 24hr oesophageal pH monitoring, a valid symptom questionnaire, quality of life questionnaires and gastric emptying studies. This study will identify the extent of GOR in a large adult CF population and the impact on lung function and quality of life together with the effects of medical and physiotherapy treatment on gastro-oesophageal function.

The researchers are investigating a novel technique, the multi breath nitrogen washout technique, to measure airway changes in various respiratory diseases.

The purpose of this study is to determine whether asthmatics have different adenosine receptor expression profiles than healthy controls. We hypothesize that asthmatics will have increased adenosine receptor expression versus control subjects. We also want to study the effects of allergen inhalation on adenosine receptor expression in asthmatics. We believe that adenosine receptor expression will be upregulated after allergen inhalation. Both hypotheses are being tested in sputum and peripheral blood.

Listening to breath sounds with the stethoscope/auscultation is used by pulmonary physicians in conjunction with pulmonary function, signs and symptoms, oxygen saturation and diagnostic testing to admit, follow and discharge patients from hospital. Of these, only auscultation routinely ceases upon discharge from Hospital. Healthcare utilization statistics have shown that for more than a decade, readmission after discharge for an exacerbation of COPD or severe asthma (or chronic heart failure) remains a major problem. The Strados RESP Biosensor has been designed to extend the range of lung sound recording both geographically and temporally to improve the standard of care when access to continuous monitoring has been replaced by periodic or no monitoring. The primary purpose of this study is to assess the associations between RESP Biosensor-acquired lung findings and subjective measures of respiratory symptoms as measured by validated measurement tools, and objective measure of respiratory physiology as determined by home spirometry

A descriptive study that will quantify the mean IgG antibodies remaining in vaccinated healthy participants after their COVID booster.