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Scientists hunt for blood clues to air pollution damage

NCT ID NCT02765529

Knowledge-focused Sponsor: Lille Catholic University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study aimed to find new blood markers that show how tiny air pollution particles affect the body. Researchers took blood samples from 101 healthy adults of different ages and exposed their white blood cells to fine particles in a lab. They measured changes in inflammation, DNA damage, and other cell activities to identify possible markers of pollution exposure.

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

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

101 people

The number who actually took part.

Start date

Nov 2015

Finished

Dec 2016

Lead sponsor

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

20 to 80 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age between 20-30 years, 45-55 years or 70-80 years * Signature of an informed consent * Non-smoker or ex-smoker for more than 10 years * Homogeneous repartition between men and women * Social insurance affiliation * Understanding or being able to speak French Exclusion Criteria: * Pregnant or breast feeding woman * Treatment with parenteral corticoids in the 30 days prior to inclusion visit, treatment with immunosuppressant drugs, radiotherapy, chemotherapy * Occupational exposure (metallurgy, petrochemistry, house painter) for more than 10 years and having ceased all activities in these areas for less than 10 years ago.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Biomarkers of air pollution exposure

Contacts and locations

Locations

  • Clinical Nutrition Center Naturalpha

    Lille, Hauts-de-France, 59000, France