- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03917485
Bio Metrology of Nonfibrous Mineral Particles in Bronchoalveolar Lavage Fluids (REACTIT)
The main purpose of this study is to update the pulmonary retention values of non-fibrous mineral particles in the general population.
This study will provide reference values for the interpretation and diagnosis of the cause of certain respiratory diseases potentially related to mineral particles.
Study Overview
Status
Conditions
Detailed Description
Some non-fibrous mineral particles are responsible for respiratory or systemic diseases, most often of occupational origin. Their use concerns multiple professional sectors.
The bio metrology of these particles, namely their quantification in a biological medium requires reference values. These are essential for clinicians to interpret pulmonary retention in patients who may have been exposed professionally or environmentally to non-fibrous mineral particles.
A comparative study conducted in 2015 by lafp showed an increase in the particulate load of nonfibrous mineral particles, including titanium, in lung parenchyma samples over time.
Bronchoalveolar lavage fluid is typically considered to be representative of the lung for the analysis of nonfibrous mineral particles. The thresholds currently used for the bio metrology of nonfibrous mineral particles in bronchoalveolar lavage fluid samples are based on reference values established more than 20 years ago. It is therefore appropriate to update these reference values by establishing a new control population from the analysis of bronchoalveolar lavage fluid from subjects not exposed to the non-fibrous mineral particles in a professional or environmental manner.
Study Type
Enrollment (Actual)
Contacts and Locations
Study Contact
- Name: Jean-Claude Pairon
- Phone Number: +33157022090
- Email: jc.pairon@chicreteil.fr
Study Locations
-
-
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Créteil, France, 94010
- Centre Hospitalier Intercommunal de Créteil
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Sampling Method
Study Population
Description
Inclusion Criteria:
- Subjects not exposed to Non-fibrous Mineral Particle in a professional and / or environmental way.
- Smokers and non-smokers (or weaners who have been weaned for at least 5 years).
- Acceptance to participate in the protocol.
- Affiliated to a social security scheme.
Exclusion Criteria:
- Suspicion of fibrosing pulmonary pathologies.
- Suspicion of pulmonary sarcoidosis ≥ stage 2, pneumoconiosis.
- Subjects with cystic fibrosis.
- Subjects chronic obstructive pulmonary disease (COPD) stage ≥ 3.
- Presence of serious comorbidities that are life-threatening in the short term.
- Refusal to participate in the study.
Study Plan
How is the study designed?
Design Details
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of non fibrous mineral particles in LBA (Bronchoalveolar lavage) (nombre of particles by ml)
Time Frame: 1 month
|
Quantitative analysis of Non Fibrous Mineral Particles on samples obtained from subjects selected free from any significant occupational or environmental exposure to Non-fibrous Mineral Particle.
|
1 month
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Name of non fibrous mineral particles in LBA (Bronchoalveolar lavage) (nombre of particules by ml)
Time Frame: 1 month
|
Identification of particles
|
1 month
|
seize of non fibrous mineral particles in LBA (Bronchoalveolar lavage)
Time Frame: 1 month
|
seize of particles
|
1 month
|
Collaborators and Investigators
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Estimated)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- REACTIT
- 2018-A00475-50 (Other Identifier: ID-RCB)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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