New blood test may spot silica lung damage before symptoms appear
NCT ID NCT07376291
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether a specific antibody in the blood, called anti-CD146, can help doctors diagnose lung diseases caused by breathing in silica dust at work. Silica exposure can lead to serious lung problems like scarring, inflammation, and cancer, but there is currently no simple blood test to catch these diseases early. Researchers will compare 110 people with and without silica exposure to see if the antibody levels differ and relate to lung health.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Anti-CD146 autoantibodies (AACD146) as a blood biomarker
- What this could lead to
- If successful, this could lead to a simple blood test for early detection of silica-related lung diseases, allowing earlier treatment.
- What could go wrong
- This is an early-stage diagnostic study, not a treatment trial. The biomarker may not prove accurate enough for clinical use, and results may not apply to all exposed workers.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 110 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jun 2026
An estimate. Start dates often move.
- Expected to finish
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Jun 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria for non-exposed group: * Subject, male or female, aged 18 or over * Subject with low exposure to silica \<0.1 mg/m3 in the course of their professional activity, quantified during an occupational health consultation using an employment-exposure matrix * Subjects capable of consenting to participate in the study by signing a written informed consent form * Subjects who are beneficiaries of or affiliated with a social security system Inclusion Criteria for exposed group: * Subject, male or female, aged 18 or over * Subject with moderate or high exposure to silica (\>= 0.1 mg/m3) in the course of their professional activity, quantified during an occupational health consultation using an employment-exposure matrix. * Subjects capable of consenting to participate in the study by signing a written informed consent form * Subjects who are beneficiaries of or affiliated with a social security system Exclusion Criteria for each group: * Minor subject * Subject refusing to undergo the examinations required by the protocol * Contraindications to respiratory function tests: Recent eye or throat surgery, recent myocardial infarction or pulmonary embolism, poorly controlled high blood pressure, recent pneumothorax. * Pregnant or breastfeeding women, patients under guardianship or curatorship, deprived of liberty
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The official record
The full official record for this study. This one lists no contact details, but it is the first place any would appear.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
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