Search Medical Condition
Please enter condition
Please choose location from dropdown

Asthma Clinical Trials

A listing of Asthma medical research trials actively recruiting patient volunteers. Search for closest city to find more detailed information on a research study in your area.

RESULTS

Found (42) clinical trials

Effect of Anti-IgE in Non-Allergic Asthma

Asthma is a chronic inflammatory disease of the lower airways. The inflammatory process is associated with changes in airway hyperresponsiveness (irritability), and airflow limitations caused by bronchoconstriction, edema, and mucous plugging. Mast cells, basophils, eosinophils, activated T-lymphocytes, macrophages, neutrophils, and airway epithelial cells all play a role in this inflammatory ...

Phase

Sputum and Plasma Levels of Nociceptin and Substance P in Patients With Asthma COPD and Chronic Cough

Recent animal studies have found that nociceptin can inhibit cough responses induced by capsaicin. We hypothesize that sputum and plasma levels of these peptides may reflect some neurochemical alterations in airway cough reflex or neurogenic inflammation in asthma or COPD. The aims of this study are to investigate the association ...

Phase N/A

Activation and Function of Eosinophils in Conditions With Blood or Tissue Eosinophilia

Subjects admitted on this protocol will have elevated eosinophil counts in the peripheral blood or tissues or will be relatives of subjects with eosinophilia. Eosinophilic subjects will undergo an extensive clinical evaluation focused on the identification of the cause of eosinophilia and the presence of end organ manifestations. In addition, ...

Phase N/A

Role of Genetic Factors in the Development of Lung Disease

This study is designed to evaluate genetic mechanisms of lung disease by surveying polymorphic genes involved in respiratory function and examining gene expression in the lung cells of individuals with pulmonary disease (e.g., alpha 1-antitrypsin deficiency, asthma, chronic obstructive pulmonary disease, cystic fibrosis, sarcoidosis, history of infection, and genetic mutations ...

Phase N/A

Sample Collections From the Airways of Asthmatic Patients

This tissue procurement protocol proposes to perform bronchoscopy with bronchoalveolar lavage, bronchial brushings, and bronchial wall biopsies as well as to collect samples of sputum, exhaled breath condensates and blood, in order to evaluate the molecular mechanisms underlying the pathogenesis of airway inflammation, airway hyperresponsiveness, and airway remodeling in asthmatic ...

Phase N/A

Longitudinal Observational Study of Severe Asthma

Asthma is a common disease and a significant public health problem, affecting one in every 10 individuals, nearly 30 million people in the US alone. About 5-10% of asthmatics have severe disease that is difficult to control with standard therapies. Severe asthmatics are considered to be relatively resistant to corticosteroids, ...

Phase N/A

Comparative Study of Pathophysiological Mechanisms and Bronchial Response in Occupational Asthma to Wheat Flour and Quaternary Ammonium Compounds During Standardized Bronchial Provocation Tests

Occupational asthma (OA) caused by high molecular weight (HMW) substances have been shown to induce predominantly an eosinophilic inflammation. In contrast, OA caused by low molecular weight (LMW) substances results in a neutrophilic inflammation. In addition, data regarding phenotype of lymphocytes in OA caused by HMW and LMW substances are ...

Phase N/A

A Multicenter Randomized 52 Week Treatment Double-blind Triple Dummy Parallel Group Study to Assess the Efficacy and Safety of QMF149 Compared to Mometasone Furoate in Patients With Asthma

The purpose of the trial is to evaluate the efficacy and safety of two different doses of QMF149 (QMF149 150/160 g and QMF149 150/320 g via Concept1) over two respective MF doses (MF 400 g and MF 800 g via Twisthaler (total daily dose)) in poorly controlled asthmatic patients as ...

Phase

Study of Efficacy and Safety of QAW039 in Patients With Severe Asthma Inadequately Controlled With Standard of Care Asthma Treatment.

A double-blind, placebo-controlled study to evaluate the efficacy and safety of two doses (Dose 1 and Dose 2) of QAW039 compared with placebo over a 52-week treatment period in in each of the groups (patients with severe asthma and high eosinophil counts and all patients with severe asthma). Efficacy will ...

Phase

Environmental Polymorphisms Registry

We are establishing a registry-based cohort and repository of biological (e.g. blood, urine,saliva, etc.) and environmental (e.g. household dust) specimens (approximately 20,000 participants) in which the donated specimens are linked to the donor s identities, contact information, and some basic demographics through a personal identification number (PIN). Specimens are available ...

Phase N/A