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Blood cells linked to lung scarring in COPD

NCT ID NCT01196832

Knowledge-focused Sponsor: University Hospital, Bordeaux 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 explores whether certain blood cells called fibrocytes play a role in the airway remodeling seen in chronic obstructive pulmonary disease (COPD). Researchers will compare blood samples and lung function between people with COPD and healthy volunteers, including smokers and non-smokers. The goal is to better understand why airway damage becomes permanent in COPD.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If fibrocytes are found to play a key role in COPD airway remodeling, this could point toward new targets for treatments that slow disease progression.
What could go wrong
This is an observational study focused on understanding disease mechanisms, not testing a treatment. It may not lead directly to new therapies.

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

115 people

The number who actually took part.

Started

Mar 2011

Finished

May 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

40 years and older

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: * Patients: diagnostic of Chronic obstructive pulmonary disease (COPD) exacerbation. * Control group: subjects without any history of lung disease and with normal lung function testing. Subjects will be separated in 2 sub-groups according to smoking history (Never smokers, smokers (former or current) and paired to patients according to age and sex. * Written informed consent Exclusion Criteria: * Subject without any social security or health insurance * Asthma, lung fibrosis or idiopathic pulmonary hypertension * Chronic viral infections (hepatitis, HIV)

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Conditions

The condition(s) this trial relates to.

chronic obstructive pulmonary disease

As listed by the trial registrant

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

Chronic obstructive pulmonary disease

Contacts and locations

Locations

  • CHU de Bordeaux

    Pessac, 33604, France

More trials for these conditions

Other studies related to the condition(s) this trial covers.