View clinical trials related to Respiratory Tract Diseases.
Filter by:The purpose of this study is to evaluate the safety and effectiveness of Hyeonggaeyeongyo-Tang for chronic rhinitis according to pattern identification in Korean medicine.
The BREATHE (Behavioral Research of Environment and Air Pollution Through Education) study is a pilot randomized control trial comparing the efficacy of a classroom-based intervention to no intervention in helping middle-school students understand and make behavioral decisions about air pollution. This study is designed to evaluate the effectiveness of the classroom-based intervention on knowledge of air pollution, understanding of air pollution sources, and behavioral choices made to reduce both contributions to air pollution and personal exposure to air pollution. It has been well established that pollution is a racial and economic issue. Low-income areas with populations of predominantly people of color tend to be those with the highest rates of pollution and the largest particulate exposure. Creation of and exposure to this pollution is a key issue for the health of inhabitants of these areas, and of those in the broader surrounding areas. By developing, and assessing the effectiveness of, the investigators hope that the BREATHE study will give the investigators insights into how to better combat this higher exposure and reduce the health risks for those in high pollution areas. The study will take place in 4 visits over a period of 12 months. The hypothesis is that the classroom-based intervention will be effective in leading to behaviors that will reduce exposure to air pollution.
The environmental pollutants and endogenous reactive oxygen metabolites from inflammatory cells exert substantial pathological effects on the lung cells [1]. Oxidative stress (OS) is a major factor that plays a significant role in lung cancer (LC) [2], chronic obstructive pulmonary disease (COPD) [3] and obstructive sleep apnea syndrome (OSAS) [4, 5]. The current evidence suggests that OS takes part in the mechanisms involved in initiation, promotion and progression of respiratory diseases. The major exposures that cause OS can be summarized as smoking, and ambient air pollution that contains particulate matter smaller than aerodynamic diameter of 2.5 µm [6-8]. Epidemiological and clinical studies showed that the overall outcome of pulmonary OS is increased mortality due to increased incidence of respiratory diseases [9].
The purpose of this study is to determine whether treating upper airway with intranasal corticosteroids in children with allergic rhinitis and no asthma may bring favors in reducing lower airway inflammation and improving small airway function.
To investigate whether nasal high frequency oscillation ventilation (nHFOV) immediately after extubation reduces the arterial partial pressure of carbon dioxide (paCO2) at 72 hours after extubation in comparison with nasal continuous positive airway pressure (nCPAP) in very low birth weight infants (VLBWs).
This study is designed to estimate the bioavailability of montelukast from the 5 milligrams (mg) montelukast sodium (GW483100) test formulations relative to 5 mg montelukast sodium reference chewable tablets (innovator product). It is an open-label, randomized, single dose, three-way cross over, six sequence study in 18 healthy human subjects. Each subject will participate in all three treatment periods. Subjects will be randomized to one of six sequences and administered one of the three treatments A, B or C in each treatment period, where Treatment A is 5mg chewable tablet of reference 5 mg montelukast sodium reference chewable tablets (innovator product), Treatment B is test formulation 1: 5mg montelukast sodium (GW483100) chewable tablet and Treatment C is test formulation 2: 5mg montelukast sodium (GW483100) chewable tablet. The treatment periods will be separated by a washout period of 7 to 14 days. Total duration in the study for each subject will be approximately 8 weeks from screening to the follow-up visit.
The goal of this study is to evaluate the usefulness of hyperpolarized (HP) 129Xe (xenon) gas MRI for regional assessment of lung function in a normal population of adults for the purposes of obtaining optimal images through MRI.
The aim of this study is to evaluate the effects of the use of breathing exercises with inspiratory loading on respiratory muscle strength and endurance, lung volumes and capacities and thoracoabdominal mobility in patients after bariatric surgery. It is believed that the use of inspiratory load may mitigate the negative effects of surgical trauma on respiratory muscle dysfunction, preserving respiratory muscle strength, lung volumes and diaphragm mobility, thus reducing the risk of pulmonary complications in the postoperative period.
A preliminary study to evaluate a new nasal interface and portable ventilator system in comparison to standard oxygen therapy in patients with severe chronic lung disease.
The goal of this study is to evaluate the usefulness of hyperpolarized (HP) 129Xe (xenon) gas MRI for regional assessment of lung function in a normal population of children and adults and in adults and also in children with respiratory compromise due to a variety of diseases.