CompletedNot Applicable

Bio Metrology of Nonfibrous Mineral Particles in Bronchoalveolar Lavage Fluids

France105 participantsStarted 2018-12-05

Plain-language summary

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.

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

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.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Number of non fibrous mineral particles in LBA (Bronchoalveolar lavage) (nombre of particles by ml)

Timeframe: 1 month

Trial details

NCT IDNCT03917485

SponsorCentre Hospitalier Intercommunal Creteil

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2023-06-02

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