Asthma Clinical Trial
Official title:
Evaluation of Mechanism(s)Limiting Expiratory Airflow in Chronic, Stable Asthmatics Who Are Non-smokers
The purpose of this study is to evaluate the site and mechanisms responsible for expiratory airflow limitation in chronic, treated, non-smoking, stable asthmatics with moderate to severe persistent expiratory airflow obstruction. Treatment will include inhaled corticosteroids and long acting beta2agonists. The investigators are interested in determining whether the large and/or small airways are the predominant site of airflow limitation. The investigators are also interested in determining whether intrinsic small airways obstruction and/or loss of lung elastic recoil is responsible for expiratory airflow limitation. The investigators are also interested to evaluate the role of varying doses of inhaled corticosteroids to suppress large and small airway inflammation using exhaled nitric oxide as surrogate markers of inflammation. For comparison purposes, spirometry and measurements of exhaled nitric oxide will also be obtained if possible during a naturally occurring exacerbation of asthma.
In addition we will also obtain above studies in asthmatics during naturally occuring exacerbation of asthma and following treatment. If available, results of lung function studies including measurements of lung elastic recoil will be compared to pathologic analyses of formalin fixed, air inflated lungs obtained at autopsy in asthmatics who die from asthma related or non-asthma related death. This kind of lung structure-function study will provide potential mechanism(s) to explain the loss of lung elastic recoil in acute and chronic asthmatics who are non-smokers. We will also obtain voxel quantification of high resolution thin section CT of lung obtained without IV contrast. Also, we will use fiberoptic bronchoscopy to obtain optical coherence tomography in stable asthmatics with mild to moderate to severe expiratory airflow limitation to assess integrity of the lung parenchyma. ;
| Status | Clinical Trial | Phase | |
|---|---|---|---|
| Terminated |
NCT04410523 -
Study of Efficacy and Safety of CSJ117 in Patients With Severe Uncontrolled Asthma
|
Phase 2 | |
| Completed |
NCT04624425 -
Additional Effects of Segmental Breathing In Asthma
|
N/A | |
| Active, not recruiting |
NCT03927820 -
A Pharmacist-Led Intervention to Increase Inhaler Access and Reduce Hospital Readmissions (PILLAR)
|
N/A | |
| Completed |
NCT04617015 -
Defining and Treating Depression-related Asthma
|
Early Phase 1 | |
| Recruiting |
NCT03694158 -
Investigating Dupilumab's Effect in Asthma by Genotype
|
Phase 4 | |
| Terminated |
NCT04946318 -
Study of Safety of CSJ117 in Participants With Moderate to Severe Uncontrolled Asthma
|
Phase 2 | |
| Completed |
NCT04450108 -
Vivatmo Pro™ for Fractional Exhaled Nitric Oxide (FeNO) Monitoring in U.S. Asthmatic Patients
|
N/A | |
| Completed |
NCT03086460 -
A Dose Ranging Study With CHF 1531 in Subjects With Asthma (FLASH)
|
Phase 2 | |
| Completed |
NCT01160224 -
Oral GW766944 (Oral CCR3 Antagonist)
|
Phase 2 | |
| Completed |
NCT03186209 -
Efficacy and Safety Study of Benralizumab in Patients With Uncontrolled Asthma on Medium to High Dose Inhaled Corticosteroid Plus LABA (MIRACLE)
|
Phase 3 | |
| Completed |
NCT02502734 -
Effect of Inhaled Fluticasone Furoate on Short-term Growth in Paediatric Subjects With Asthma
|
Phase 3 | |
| Completed |
NCT01715844 -
L-Citrulline Supplementation Pilot Study for Overweight Late Onset Asthmatics
|
Phase 1 | |
| Terminated |
NCT04993443 -
First-In-Human Study to Evaluate the Safety, Tolerability, Immunogenicity, and Pharmacokinetics of LQ036
|
Phase 1 | |
| Completed |
NCT02787863 -
Clinical and Immunological Efficiency of Bacterial Vaccines at Adult Patients With Bronchopulmonary Pathology
|
Phase 4 | |
| Recruiting |
NCT06033833 -
Long-term Safety and Efficacy Evaluation of Subcutaneous Amlitelimab in Adult Participants With Moderate-to-severe Asthma Who Completed Treatment Period of Previous Amlitelimab Asthma Clinical Study
|
Phase 2 | |
| Completed |
NCT03257995 -
Pharmacodynamics, Safety, Tolerability, and Pharmacokinetics of Two Orally Inhaled Indacaterol Salts in Adult Subjects With Asthma.
|
Phase 2 | |
| Completed |
NCT02212483 -
Clinical Effectiveness and Economical Impact of Medical Indoor Environment Counselors Visiting Homes of Asthma Patients
|
N/A | |
| Recruiting |
NCT04872309 -
MUlti-nuclear MR Imaging Investigation of Respiratory Disease-associated CHanges in Lung Physiology
|
||
| Withdrawn |
NCT01468805 -
Childhood Asthma Reduction Study
|
N/A | |
| Recruiting |
NCT05145894 -
Differentiation of Asthma/COPD Exacerbation and Stable State Using Automated Lung Sound Analysis With LungPass Device
|