Active clinical trials for "Asthma"

Title: Phenotyping circulating and lung resident eosinophils in severe asthma (3 years). Background: Asthma is a long-term condition that affects the airways. When a person with asthma comes into contact with something that irritates their sensitive airways, the lungs respond with contracting the muscles around the airway tubes, an inflammation process and mucus production. The airway will become narrower and inflamed making it hard to breathe and results in symptoms such as wheezing and coughing. The treatment of asthma consists of using inhalers that work to widen the airway to relief these symptoms. Often severe asthmatics have difficulty in controlling their disease, despite good medical care and taking asthma medicines. At the moment there is no cure for asthma. A new medicine called Mepolizumab (anti-Interleukin(IL)-5 therapy) has now shown to improve the symptoms of asthma particularly patients with severe asthma in whom the normal medicines prescribed for asthma are not highly effective in controlling their disease. You have been chosen receive this new medicine as we believe it will improve the control of your disease. The aim for this study is to understand the effect of Mepolizumab on a particular type of cell, called an eosinophil, which in present lungs and blood of all people but is increased in asthma patients. Rationale: The relationship between subsets of circulating and lung resident eosinophils in severe asthma and Mepolizumab (anti-IL-5 therapy) efficacy has not been explored. Objectives: To determine the gene expression and release of inflammatory proteins (mediator profiles) of eosinophils from the circulation and the lung, specifically blood and tissue resident, in patients with severe asthma at baseline and on Mepolizumab therapy. Study 1: Phenotype subsets of circulating eosinophils in patients with severe asthma at one time-point Recruit: 15 biologic naïve SA and 15 SA currently on Mepo therapy. Blood eosinophils will be isolated by negative selection. Single-cell RNA-seq 10xGenomics and bulk-RNA-seq to be used to simultaneously measure gene and cell surface protein expression in the same cell to understand cellular heterogeneity in asthmatic eosinophils and identify novel targets and biomarkers for non-responsiveness Study 2: Phenotype subsets of circulating and lung eosinophils in patients with severe asthma on Mepolizumab therapy over one year. Treat 30 appropriately characterised severe asthmatics (Eos>300/ul) with Mepolizumab Blood eosinophils will be isolated by negative selection. Single-cell RNA-seq 10xGenomics and bulk -RNA -seq to be used to understand cellular heterogeneity in asthmatic eosinophils post Mepo Therapy. Sampling at baseline, 3 and 12 months post Mepo Therapy. Bronchoscopy performed on 30 patients, sampling endobronchial lung biopsy at baseline and 1 yr post Mepo Therapy. Single-cell RNA-seq 10xGenomics on lung resident eosinophils at baseline and 1yr post Mepolizumab therapy. Immunohistochemistry will also be performed to characterise cellular content and structure.

Four novel biologic therapies (benralizumab, dupilumab, mepolizumab, reslizumab) have been recently approved for moderate-to-severe, eosinophilic or oral steroid-dependent asthma. The efficacy and safety of these therapies have been determined primarily by randomized clinical trials that compared annualized rates of significant asthma exacerbations (SAEs), lung function changes, and standardized symptom survey score changes in therapy-treated subjects in comparison to placebo matched controls. Yet, there is increasing interest to assess the efficacy, health benefits, and safety in medical therapies using real-world evidence (RWE). Further, home monitoring of asthma using mobile health (mHealth) technology may help scientists develop new and more sensitive indicators of asthma control that could improve clinical care. The hypothesis is that real world evidence, collected at home using several mobile health technologies, will help determine the efficacy, health benefits, and side effects of these therapies. Objectives Assess real-world evidence (RWE) indicators of worsening and improving asthma. Scientists will measure steps per day, duration and vigor of exercise per day, sleep quality, and the number of awakenings per night using Fitbit activity trackers. Scientists will measure symptoms using once-monthly custom survey delivered to participant smartphones via Twilio. Rescue medication use and adherence to maintenance medications may be measured using digital inhaler devices. Adherence to biologic use using HealthBeacon smart sharps containers may be measured. Measures collected will be correlated to patient-reported significant asthma exacerbations (SAEs), lung function (FEV1), and the asthma control test (ACT) collected in clinic every 3 months. Use RWE to determine responses to biologic therapies. Scientists will combine at-home and clinic data to determine responses to biologics.

Most of clinical cohorts focused on the course of asthma over time and on the different phenotypes of asthma have investigated children and adults separately. The passage from childhood to adulthood is scarcely explored. In this context, we decided to explore the course of asthma severity from teenage to adulthood in children with severe asthma. The secondary objectives are to assess the quality of life and socioeconomic status in adulthood. This study will be both retrospective (data collected during childhood) and prospective (data collected during adulthood), multicentric and observational

The aims of this study are to investigate the association between sputum and plasma levels of nociceptin and substance P with cough severity and airway hyperreactivity in patients with asthma, COPD and chronic cough.

The purpose of this study is to assess the blood and urine concentrations of terbutaline and to evaluate the difference between inhaled and oral terbutaline in order to distinguish treatment with terbutaline from doping with terbutaline in a doping control.

The aim of this study was to evaluate exercise capacity and activity role adequacy in patients with adult bronchial asthma.

Asthma is a heterogeneous disease characterized by chronic airway inflammation characterized by time-varying respiratory symptoms such as wheezing, shortness of breath, chest tightness and cough, with limitation of expiratory airflow. These variations are often triggered by exercise, exposure to allergens or an irritation, weather changes or viral respiratory diseases (Karakış, 2018). Increased respiratory distress decreases the patient's activity, decreases the condition and makes the individual dependent in daily life. In the studies conducted in asthma patients, the cases stated that they perceived their illness as an obstacle against physical activity and thus they were pushed to immobility (Kırtay & Oğuz, 2011). In the literature, no study on the variable of kinesiophobia in asthma was found. The aim of this study was to investigate the relationship between kinesiophobia and physical activity level and quality of life in asthma patients.

Daily physical activity in adult patients with asthma remains overlooked. Limited evidence demonstrates reduced levels of daily physical activity in asthma populations but studies examining the potential effect of available therapies are missing. This study aims to investigate the overall levels of daily physical activity in patients with severe eosinophilic asthma and whether anti-interleukin-5 therapy with mepolizumab, on top of existing, maximal, and optimised asthma treatment, may improve patient's daily physical activity.

The Russian Severe Asthma Registry is a Russian initiative to collect anonymous long-term evidence for patients with severe asthma in Russia

This is an ambispective multicenter longitudinal observational study to evaluate the efficacy and safety profile of biological therapies in patients diagnosed with severe asthma in real life conditions.