Active clinical trials for "Asthma"

An extended replication of Jaen & Dalton (2014), the investigators aim to investigate the role of odors and associated trigger beliefs on symptom perception and airway inflammation in individuals with asthma

The investigators will compare the circulating fibrocyte proportion in asthmatic patients with obstructive sleep apnea (OSA) and not with OSA In addition, the investigators will compare the expression of epidermal growth factor receptor (EGFR), endothelin A receptor (ETAR) and connective tissue growth factor (CTGF) The association of those factors and annual decline of forced expiratory volume in 1 second (FEV1) will be performed

To determine whether LTD4-BPT could be an effective indicator for predicting efficacy of anti-leukotriene therapy, allowing objective proofs for the use of LTRA among asthmatics in a specific sensitive to leukotriene population of asthma. Hypothesis ：Monteluakst can better improve pre-challenge FEV1 from baseline in leukotriene-sensitive group than leukotriene-insensitive group.

The objective of this study was to investigate the relationship between single nucleotide polymorphism of chitinase 3-like 1 and human asthma.

In this study will be consecutive enrolled children with asthma (classified according to GINA guidelines) and rhinitis (classified by ARIA guidelines); the investigators will research clinical personal and parental history regarding allergic diseases, exposition to passive smoking and interpretate hematochemical parameters markers of atopy. Skin Prick Tests will be performed. In this study the investigators will evaluate lung function parameters (spirometry with bronchial reversibility test and exercise induced bronchoconstriction, oscillometry, respiratory plethysmography, etc.), airway inflammatory indices such as exhaled nitric oxide at different flows, exhaled and nasal temperature, nasal cytology. The aim of the study will be to evaluate possible correlation between these different parameters and clinical status of the patients.

OBJECTIVE: Determine whether home asthma telemonitoring using store-and-forward technology improves outcomes when compared to in-person, office-based visits.

Asthma can be caused by many factors, including mold, pollen, and other airborne pollutants. The purpose of this study is to evaluate the effect that air pollution has on the long-term severity of asthma symptoms and lung function in children.

To explore the relationship between blood eosinophil counts, asthma exacerbations and patient asthma control using a large primary care based research database

The primary objective is to assess the clinical effectiveness of long-term omalizumab therapy in 240 patients treated over an 8 year period in a real-life clinical setting and to compare the pre- and post-treatment clinical characteristics to identify and better understand the markers of response to omalizumab. To date, there are no established criteria for identifying 'response' to omalizumab therapy. Currently, the commonly accepted clinical criterion for omalizumab treatment response is the physician's overall assessment, GETE (Global Evaluation of Treatment Effectiveness). Most clinical trials have evaluated the efficacy of omalizumab treatment after a 16 week treatment period and lack the impact of long-term omalizumab therapy. Investigators propose multiple approach modules to better assess and identify 'response' and to define 'responders' to omalizumab and evaluate the long-term impact in a real-world clinical practice. Besides evaluating individual outcome variables, it is important to attempt the 'clustering of variables' to further investigate if any baseline clinical phenotypes are predictive of better response enabling us to refine the patient population who will gain most benefit from therapy.

This will be a two-year prospective study to characterize the nature of the remaining asthma exacerbations in patients treated with mepolizumab. Participants will be assessed every six months from pre- until two years of treatment in addition to whenever they experience an exacerbation of asthma during the study period. During these visits, various clinical, physiological and inflammatory outcomes will be assessed.