Active clinical trials for "Asthma"

In asthma, the type and importance of the inflammatory response in the airways has allows identification of different phenotypes. Of these, one of the most common is eosinophilic asthma, based on induced sputum differential cell count. Patients with severe asthma and an eosinophilic asthma phenotype have different pathophysiological characteristics than those seen in patients with with mild asthma. However, few studies have compared patients with eosinophilic phenotype according to the severity of asthma. In addition, the stability of the phenotype based on the sputum results has been criticized. This study aims to describe the characteristics of patients with eosinophilic asthma phenotype according to the severity of asthma and determine the stability of the phenotype.

This Retrospective cohort study with an overall objective of to perform a descriptive analysis of the asthma patient population in the Emirate of Dubai with respect to healthcare resource utilization, costs, and asthma-related treatment patterns and outcome.

The purpose of this study is to identify gene transcripts after initiation of mepolizumab in individuals with severe eosinophilic asthma (SEA), and to determine the composition of immune cells present in the microenvironment of individuals with SEA after initiation of mepolizumab.

The PRIME study is an observational, Real World Evidence study designed to collect the type of treatments that are currently prescribed to patients with mild asthma and to collect relevant clinical data that could reflect the control of the disease over a 6-month observational period according to the standard clinical practice.

The purpose of this study is to determine mean or median of fractional exhaled nitric oxide (FeNO) in Thai atopic asthmatic patients that divided into subgroups due to level of asthma control according to the global initiative for asthma guideline.

The main objectives of the study are to study the different T cell subtypes (Th1, Th2, Th17 and Treg) in the lower airways of healthy subjects and clinically different asthma patients, based on a non-invasive procedure of sputum induction. Patients will be different in function of age, in relation to the trigger (eg aspirin, without or with association with polyposis), without or with underlying atopic sensitization or different in the type of underlying inflammation (eosinophilic vs neutrophilic). This T cell pattern will become the basis of molecular phenotyping in the patients. to study the usefulness of asthma molecular phenotyping (by following the balance between the inflammatory markers on the one hand and the regulatory markers on the other hand) in asthma guidance (longitudinally). The final goal of this project is then to develop a sputum non-invasive biomarker array that can be used to distinguish the different inflammatory asthma phenotypes and that can predict steroid resistance and/or sensitivity to other anti-inflammatory medication, using a non-invasive technique that can be used also at young age and repetitively.

This is a six-month non-interventional prospective study of various controller therapies in children with asthma in outpatient clinical practice.

To assess asthma control in Russian patients according to the new criteria provided in the international guidelines and identify pharmacological approaches that provide a higher level of overall asthma control

The objective of this study is to compare healthcare utilization and costs in asthma patients who receive fluticasone propionate/salmeterol combination 100mcg/50mcg ("FSC 100/50") or inhaled corticosteriods in typical clinical practice using a retrospective observational cohort study design of large managed care database.

The Predictors for asthma control by stepwise treatment during 6 months in Korean elderly