View clinical trials related to Asthma.
Filter by:This is a 12-week treatment, multicenter, open-label, randomized, parallel group comparison feasibility study to evaluate the effectiveness of the Albuterol eMDPI Digital System (DS), including inhaler, App, digital health platform (DHP) (Cloud solution), and dashboard, to optimize outcomes in participants at least 13 years of age or older with asthma. The study will consist of a screening visit, a 12-week open-label treatment period, and a follow-up telephone call (2 weeks following treatment completion). Participants with suboptimal asthma control will be enrolled in the study and randomized in a 1:1 ratio to 1 of 2 parallel groups stratified by investigational center: DS group participants utilizing the Albuterol eMDPI DS, including inhaler, App, DHP (Cloud solution), and dashboard, and CC group participants who will be treated with their standard of care albuterol-administering rescue inhalers and will not use the DS during the treatment period.
The overall objective of the study is to determine the efficacy of corticosteroids in preventing recurrent wheezing and asthma in high-risk, first-time severe wheezing children with rhinovirus infection, stratified by rhinovirus genome load. The secondary objectives are to determine duration and severity of each acute episode with acute expiratory breathing difficulty, the number of episodes with acute expiratory breathing difficulty, degree of pulmonary hyperreactivity and quality of life within 24 months after study entry.
Patients with obese late onset (after childhood) asthma can have lower FeNO levels, yet be highly symptomatic and poorly responsive to inhaled steroids. This is a common asthma phenotype, particularly among females. This reduction of NO occurs through increased arginase activity and uncoupling of NO synthase (NOS), by accumulation of asymmetric di-methyl arginine (ADMA), which further lowers the L-arginine/ADMA ratio, preferentially promoting reactive oxygen species (ROS) formation and inflammation at the expense of NO. Indeed, in patients with obese late onset asthma, lower L-arginine/ADMA plasma ratios are associated with reduced FeNO, increased bronchial hyperreactivity, and greater asthma morbidity. In our pilot studies, the administration of L-citrulline, as an L-arginine donor, to patients with obese late onset asthma increased the L-arginine/ADMA ratio, FeNO levels, and improved asthma control and lung function. Therefore, the objectives of the protocol are to: a) determine the efficacy of L-citrulline, as an add-on treatment to improve the asthma control and lung function in obese late onset asthmatics; b) leverage the use of asthmatic and control cells to further understand obesity-related changes in epithelial airway NO metabolism, and how these changes relate to bronchoconstriction and lung function, c) determine airway epithelial changes in mitochondrial function and bioenergetics in obese late onset asthmatics and how these are modified by L-citrulline. To do this, 54 obese late onset asthmatics with suboptimal control will be blindly randomized, in a cross over study, comparing 15g/day of L-citrulline vs. placebo, in two 8-week treatment periods with a 6-week washout in between. The co-primary study outcomes are asthma control (ACQ, ACT) and FeNO, and secondary endpoints plasma L-arginine/ADMA, FEV1 and PC20 methacholine. Parallel to this study, a small study of 10 healthy obese controls will receive open label L-citrulline for 7 weeks to establish comparative reference values for the study aims. During the initial treatment phase, 50% of study participants will be randomly allocated to undergo pre and post L-citrulline treatment bronchoscopy to obtain BAL and airway epithelial cells. The research group proposing this study is highly experience in asthma clinical trials, implementation of cross over design studies, and in the use of research bronchoscopies.
In asthmatics with airway hyperresponsiveness and a "T2 immune signature" (type 2), Dupilumab will suppress airway hyperresponsiveness (assessed by methacholine PC20 ≤ 4 mg/mL (PC20: provocative concentration causing a 20% fall in FEV1) OR ≥15% decreased in forced expired volume in 1 second (FEV1) during saline inhalation for sputum induction OR ≥25% improvement in FEV1 after bronchodilator) and airway eosinophilia (assessed by sputum eosinophils) and this will be associated with greater asthma control and improved ventilation heterogeneity.
The purpose of this study is to see if a medicine called Cysteamine, given along with standard asthma care, will improve asthma symptoms and lung function.
The overall goal of this project is to demonstrate the feasibility, implementation, and preliminary efficacy of a technology-assisted stepped care (TASC) adherence-promotion intervention in adolescents with asthma. This is the third phase (Phase 3) of a three-phase project to test the preliminary efficacy of a technology-assisted stepped care (TASC) intervention. In Phase 1, we developed the intervention using patient and provider feedback from focus groups. In Phase 2 we refined the developed intervention by having five adolescents from the focus groups test the intervention for feasibility. In this third phase, we will enroll up to 50 adolescents to pilot-test the refined intervention for preliminary efficacy.
Vitamin D3 supplementation doen not change lung functions and exercise tolerance in vitamin D3 deficient ACO patient was the null hypothesis of the research.
A Randomized, Blinded, Parallel Group, Placebo-Controlled, Multiple Dose, Multicenter Study to Compare the Therapeutic Equivalence of Fluticasone Propionate Pressurized Metered Dose Inhaler, 110 mcg, to Flovent® HFA 110 mcg, in Adult Subjects with Asthma.
This study evaluated the efficacy of doxophylline as a steroid sparing treatment in Mexican children with asthma treated with medium ir high doses of inhaled corticosteroids (ICS). It is a cross over study in which both groups of patients will receive doxophylline plus a lower steroid dose maintaining the same treatment step according to GINA guidelines, one group will maintain the same treatment dose while the other will start with doxophylline with the lower ICS dose, and by the middle of the study both groups will interchange treatment schemes.
Multicenter, cross-sectional study to recruit a random sample of 6000 children via school class registers: 3000 children aged 13-14 years and 3000 children aged 6-7 years.