Environmental Exposure Clinical Trial
— ExpoCFOfficial title:
Real World Environmental Exposure Study With Healthy and Cystic Fibrosis Subjects
Cystic fibrosis (CF) is the most common autosomal recessive disease that leads to early mortality in Caucasians and affects around 7500 patients in France. Progression of the disease depends on pulmonary exacerbations defined as acute deterioration of respiratory symptoms which ultimately impair lung function and quality of life. Most frequently caused by lung bacterial infections, exacerbations' effects include increased cough, increased sputum production, increased use of antibiotics, dyspnea and decreased lung function. The phenotypic variability of CF suggests the implication of other contributors especially to the CF airway disease. Beside genetic and epigenetic alterations, environmental factors - e.g tobacco smoke, air pollution, temperature changes, food intake - appear as relevant candidates. A previous review has discussed current knowledge on the effects of air pollution on the course of CF disease. Although scarce, the existing epidemiological andexperimental literature suggests a link between exposure to air pollutants and adverse health effects.Although scarce, the existing epidemiological and experimental literature suggests a link between exposure to air pollutants and adverse health effects. The EU sponsored REMEDIA project (Impact of exposome on the course of lung diseases, Grant agreement ID 874753) contributes to the understanding of the influence of the exposome on chronic obstructive pulmonary disease (COPD) and CF. Objective of work package 3 within the REMEDIA project is the development of a mobile environmental sensor toolbox that is capable to assess the external exposome. The biomarkertoolbox was developed and tested in a proof-of-concept study carried out in healthy volunteers. The next step is to validate the collectionof exhaled breath condensate (EBC) in a real-life study. In this aim, the objective of the present study will be to assess the feasibility of EBC collection in CF patients and healthy individuals
Status | Not yet recruiting |
Enrollment | 16 |
Est. completion date | December 31, 2027 |
Est. primary completion date | July 1, 2025 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 18 Years to 65 Years |
Eligibility | Inclusion Criteria: - Normal blood test - Negative Cotinine test - Protocole (RiPH2) - Normal ECG - Normal alcohol test - Lung function with FEV1 predicted = 40% at spirometry. Exclusion Criteria: - None |
Country | Name | City | State |
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n/a |
Lead Sponsor | Collaborator |
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Centre Hospitalier Intercommunal Creteil |
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Collection of exhaled breath condensate (EBC) for biomarker analysis | Levels of 3-Nitrotyrosin, Hexanal, Neutrophil Elastase in EBC | day 1 | |
Primary | Collection of exhaled breath condensate (EBC) for biomarker analysis | Levels of 3-Nitrotyrosin, Hexanal, Neutrophil Elastase in EBC | days 3 | |
Primary | Collection of exhaled breath condensate (EBC) for biomarker analysis | Levels of 3-Nitrotyrosin, Hexanal, Neutrophil Elastase in EBC | days 5 | |
Primary | Collection of exhaled breath condensate (EBC) for biomarker analysis | Levels of 3-Nitrotyrosin, Hexanal, Neutrophil Elastase in EBC | days 6 | |
Primary | Collection of exhaled breath condensate (EBC) for biomarker analysis | Levels of 3-Nitrotyrosin, Hexanal, Neutrophil Elastase in EBC | days 8 | |
Primary | Collection of exhaled breath condensate (EBC) for biomarker analysis | Levels of 3-Nitrotyrosin, Hexanal, Neutrophil Elastase in EBC | days 10 | |
Secondary | Dysfunction or misused, failure, of EBC and sensor device | rate of Dysfunction or misused, failure, of EBC and sensor device | days 10 | |
Secondary | Show correlation of biomarker signal with environmental sensor system in a clinical challenge setting in healthy and CF patients. | Correlation of environmental exposome signal biomark | days 5 | |
Secondary | Describe differences in CF subjects vs. healthy controls | Comparison of environmental exposome signal biomarker and environmental sensor measures in healthy individuals and CF patients | days 5 | |
Secondary | Impact of environment exposome on health status and lung function | Lung function testing and health questionnaire score before and after working trial in urban and green zone | days 5 | |
Secondary | Show correlation of biomarker signal with environmental sensor system in a clinical challenge setting in healthy and CF patients. | Correlation of environmental exposome signal biomark | days 10 | |
Secondary | Describe differences in CF subjects vs. healthy controls | Comparison of environmental exposome signal biomarker and environmental sensor measures in healthy individuals and CF patients | days 10 |
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