View clinical trials related to Asthma.
Filter by:Asthma is a disease characterized by chronic inflammation in the airways. Recent research has demonstrated that one of the reasons for the chronic inflammatory state is an imbalance between oxidative stress and antioxidative defenses in patients with asthma. Green tea is a common beverage consumed by Chinese patients from all walks of life. Green tea contains chemical components that are thought to have immunomodulatory actions in chronic inflammation. The investigators propose to recruit 35 patients with stable asthma. Recruited subject will be given oral tablets containing Green tea extract (GTE) to be taken daily for three months. Clinical follow up and assessment will be done at baseline, on completion of GTE intake at three months, and at three months after GTE intake has been stopped. A questionnaire on their health status and the frequency of symptoms and use of bronchodilators and inhaled steroids will be completed, spirometry will be done and a venous blood sample will be taken during recruitment and during each reassessment at 3 and 6 months. Measurement of oxidants/antioxidants (GSH, GSSG, SOD, CAT and GPx) will be carried out on the blood samples. Oxidants/antioxidants will be compared and correlated with lung function results. This study would provide us with pilot data as to whether GTE, a strong antioxidant with immunomodulatory actions, has any effect on reducing the oxidative stress and improving the antioxidant status in patients with asthma and whether these changes are accompanied improvement in clinical status. Hypothesis Green tea extract (GTE) reduces oxidative stress and improves antioxidant defenses in Chinese patients with asthma
Clinical response, as defined by improvement in asthma quality of life, to bronchial thermoplasty in patients with severe refractory asthma can be predicted through the use of clinical, physiologic, biologic and imaging markers.
Sulforaphane (SFN) is a naturally occurring isothiocyanate that is a potent inducer of Phase II enzymes which play a critical role in preventing oxidative stress (via activation of Nrf2). Broccoli sprouts (BS) contain the richest source of SFN. The main objectives of this study are to test the effect of broccoli sprouts (BS) on biomarkers of oxidative stress (OS), inflammation, basophil activation, and clinical outcomes in mouse allergen-induced asthma by (1) determining if BS improves lung function and airways symptom responses in mouse-sensitized adults with asthma undergoing environmental mouse allergen challenge (EMAC), (2) examining the effect of BS on OS, inflammation, and basophil activation, and (3) examining the effect of BS on changes in OS, inflammation, and basophil activation after EMAC.
The objective of this study is to evaluate the efficacy and safety of vilanterol inhalation powder administered once daily in the evening in adolescent and adult subjects 12 years of age and older with persistent asthma over a 12-week treatment period.
Due to the complexity of orally inhaled products (combination of a formulation and a device)and the topical nature of drug delivery to the lung for efficacy in vitro-in vivo correlation(IVIVC) for inhaled dosage forms is not generally known. The rationale of this pilot study is to gain in vivo data of the Budesonide/formoterol EH product variants under development and compare pulmonary deposition (administration with charcoal) of different product variants of Budesonide/formoterol EH with Symbicort TH.
Curcumin has antioxidant properties and in animal models has numerous molecular targets, many of which are intracellular, such as transcription factors AP-1 and NF. As such, it inhibits the secretion of both pro-inflammatory (TNF-, IL-6) and anti-inflammatory (IL-10) cytokines, possibly by inhibiting transcription factors such as nuclear factor-B (NF-B) and activator protein-1 (AP-1) (Wong et al).
During the second week of September( week 38 of the year)there are recorded data of exacerbation of asthma all over the world, including Israel. A short preventive treatment of 6 weeks may reduce asthma exacerbation in children,reduce primary care and ER visiting and hospitalization.
The purpose of this study is to investigate the lung deposition and distribution pattern of Beclometasone and Formoterol using a gamma-scintigraphic technique after inhalation of a single dose of 99mTc-radiolabelled BDP/formoterol fixed combination administered Via the NEXT DPI in healthy volunteers, asthmatic and COPD patients. Additionally, the systemic exposures to formoterol, BDP and its monopropionate metabolite (B17MP) will be investigated.
The goal of this new translational project is to test the feasibility and effectiveness of implementing school-based directly observed therapy of preventive asthma medications in a real-world setting, using state-of-the-art web-based technology for systematic screening, electronic report generation, and communication between nurses, caregivers, and primary care providers. With the use of a novel method to improve adherence and subsequently reduce morbidity, the investigators hypothesize that this novel adaptation of school-based asthma care will; 1) be feasible and acceptable among this population and among school and community stakeholders, and 2) yield reduced asthma morbidity (symptom-free days, absenteeism, and emergency room / urgent care use for asthma care). The investigators anticipate that enhancing preventive healthcare for young urban children with asthma through partnerships with the schools using a novel technology will yield improved health, prevention of suffering, decreased absenteeism from school, and reduced healthcare costs.
Asthma is the most common chronic illness of childhood, and hospitalization rates are increasing. In the US, impoverished children and children from minority ethnic and racial backgrounds suffer disproportionately from asthma. While National Heart, Lung, and Blood Institute (NHLBI) guidelines recommend daily preventive medications for all children with mild persistent to severe persistent asthma, studies indicate that many children in the US who should receive preventive medications are not receiving them. The overall goal of this project is to target an ethnically diverse population of inner-city schoolchildren with asthma and explore a school-based program to reduce asthma morbidity. We hypothesize that children receiving a comprehensive school-based intervention will experience less asthma-related morbidity compared to children receiving usual care. Our comprehensive school-based intervention consists of both administration of recommended preventive asthma medications in school (with dose adjustments according to NHLBI guidelines) and an environmental tobacco smoke (ETS) reduction program in the home for smoke-exposed children. Our secondary hypothesis is that, among the subgroup of smoke-exposed children, those who receive the school-based intervention with ETS reduction will experience less asthma morbidity than those who receive usual care.