View clinical trials related to Asthma.
Filter by:The purpose is to characterize the change of respiratory admittance induced by salbutamol inhalation in children and young adults. A variation threshold will be fixed to distinguish asthmatic and healthy subjects. This project could allow a better identification of asthmatic individuals needing a treatment, a reduction of morbidity of asthma, a reduction of unnecessary treatments administered in individuals with respiratory but not asthmatic symptoms, a better comprehension of bronchial hyperreactivity and its role in asthmatic disease.
The current study aims to explore the role of prebiotic supplementation in adults with and without Asthma/Exercise-Induced Bronchoconstriction (A/EIB). All participants will be asked to consume a prebiotic supplement, and a placebo, each for a total duration of four weeks, separated by a two-week wash out period. The investigators hypothesise that improvements in pulmonary function observed in adults with Asthma following prebiotic supplementation. We hypothesise that improvements in pulmonary function will be attributed, at least in part, to gut microbiota mediated improvements in human immune function.
It is recommended that patients with asthma owned a written action plan which must include the names, doses and dosing of the treatment they should take when acute respiratory symptoms occur. Current written action plans must be short to be readily used (1 page) and, therefore, cannot fit all acute situations. Moreover, they may not be available where and when required. The investigators sought that a digital action plan, available through Smartphone or tablet computer connected to the internet, could adequately provide suitable action plans according to the severity of the described exacerbation, and would be more easily available when useful. The aim of the study is to study the effect of the use of a digital action plan for asthma exacerbation, on the frequency of unscheduled medical contacts (phone calls, visits to physicians or to emergency departments, hospitalizations) in children and in adults with asthma. The investigators hypothesized that the use of the digital action plan could reduce avoidable unscheduled visits due to mild or moderate exacerbations that could successfully be managed by the patient or his/her caregivers.
The purpose of this study is to investigate the onset and maintenance of effect of benralizumab on lung function, blood eosinophils, asthma control metrics and quality of life during 12-week treatment in patients with uncontrolled, severe asthma with eosinophilic inflammation. A subset of patients will take part in body plethysmography substudy to further investigate the effect on lung function.
This study is aimed to evaluate the effectiveness of Asthma Control Test (ACT) guided treatment compared with usual care in asthma subjects in China. It is designed to assist Chinese subjects and physicians improving adherence to the guidelines through the inclusion of the ACT in the patient's asthma management plan. This is a prospective, multicentre, cluster-randomized, open-label 24-week study. In this cluster-randomization design, each study center, considered as a cluster, will be randomized to either ACT guided treatment group or control group (usual care group). For the subjects who are recruited in the ACT centers, they will be treated based on the ACT score. If ACT score are equal to (=) 25 for more than equal to (>=) 3 months then the treatment will stepped-down; if ACT score >=20, less than (<) 25 or ACT=25 for <3 months then there will be no change and if ACT score less than (<=) 19 then the treatment will stepped-up. For subjects who are recruited in the control centers, they will be treated based on doctor's subjective judgment. Assignment to a treatment will not occur, as no treatment intervention is provided for this study. A total of 528 asthma subjects are planned in the study. The randomization will be stratified according to the Tier of the hospitals (Tier 3 verses Tier 2).
A new influenza vaccine, known as LAIV (Live Attenuated Intranasal Vaccine) has recently been approved by a number of licensing boards and is given by a spray into the nose. In the United Kingdom (UK), the vaccine has been demonstrated to be highly effective against influenza infection. Further, despite concerns that LAIV can cause wheezing in children under age 2 years, the previous SNIFFLE studies have demonstrated it to be safe in children over 2 years with mild-moderate asthma. The objective of this multicentre study is to further assess the safety of intranasal LAIV in children with asthma and recurrent wheeze, including those with severe symptoms.
The investigators will evaluate sensitization to animal allergens and allergic symptom during contacting animal allergens in Korean veterinary researchers who attend their annual conference. The investigators will compare sensitization to animal allergen and other clinical and occupational factors between subjects who suffer from allergic symptom during contacting animal and those who do not.
The pattern of lower airway inflammation in asthma is heterogeneous, but in many patients, the polymorphonuclear neutrophil (PMN) is the predominant granulocyte infiltrating the airspaces. Although it is known to have an important function in innate immune defense, the role of the PMN in asthma has not been well elucidated. In work in progress, the investigators have identified the receptor for IL-5 on the surface of bronchoalveolar lavage (BAL) PMNs in a subset of children with severe, treatment-resistant asthma, a characteristic that is not found in peripheral blood neutrophils. While the function of this IL-5 receptor has yet to be determined, preliminary evidence strongly supports a mechanism linking neutrophilic with type 2 inflammation in the lower airways of children with asthma, a discovery that has exciting potential to modify the treatment of asthma. The primary objective of this observational cross-sectional study is to test the overall hypothesis that therapeutic intervention directed against the IL-5R on lung PMNs will decrease inflammation and improve clinical outcomes in patients with poorly controlled asthma. The secondary study objective is to demonstrate that IL-5R expression on lung-infiltrating PMNs is functional, will activate known IL-5R-induced signaling pathways, and will lead to enhanced PMN pro-inflammatory activity including increased PMN recruitment, prolonged survival, degranulation, and release of reactive oxygen species.
Asthma is the most common chronic condition in children and one of the five most burdensome diseases in the United States. Despite this, research and care for childhood asthma are limited by inefficient utilization of electronic medical records (EMRs) to facilitate large-scale studies and care. The primary goal of this clinical trial is to implement the asthma-Guidance and Prediction System (a-GPS) on the Asthma Management Program (AMP, a current care coordination program for asthma care of children aged 5-17 years at Mayo Clinic). Primary hypothesis: The implementation of a-GPS in the current care is logistically feasible.
Poor function of the right side of the heart and rise in pressure of the blood vessels leading to the lungs are two main heart-related factors that are associated with worsening of airway disease. A relatively new method which uses magnetic field to create images of the heart called cardiac magnetic resonance (CMR) imaging shows immense promise in detailed and accurate assessment of the heart in patients with airway diseases. This project aims to assess the heart in patients with asthma and chronic obstructive pulmonary disease (COPD) as well as healthy participants using CMR to help us determine features on CMR that are different is patients with asthma and COPD compared to healthy participants. This may help with early identification of patients who are at risk of episodes of acute worsening of airway disease, called exacerbation, and potentially halt the progression of the heart dysfunction with currently available or new treatments. Study involves one visit at Glenfiled Hospital, Leicester, lasting approximately 4 hours. The visit will include following assessments: clinical history, health status, physical examination, electrocardiogram (ECG), blood tests, lung function testing, echocardiogram and CMR. Part of the study will involve a participant questionnaire in which the participants will rate their CMR experience. The results will potentially change the way CMR is undertaken. A sub-set of the participants will also be invited back to do a one off focus group discussing the CMR experience further.