Blood protein fingerprint may reveal lung disease secrets
NCT ID NCT00793676
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at whether a family of proteins called GPCRs, found on the surface of cells, can be used as biomarkers to diagnose or track chronic lung diseases like asthma and COPD. Researchers analyzed blood samples from 205 people (healthy volunteers and patients) to see if the GPCR profile changes with disease. The goal is to create a GPCR "identity card" for each disease, which could help doctors monitor disease progression or treatment effectiveness.
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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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205 people
The number who actually took part.
- Start date
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Sep 2008
- Finished
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Sep 2017
- 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 to 85 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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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: * Asthma group * COPD group * Control group Exclusion Criteria: * Patients with infection or inflammatory diseases
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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.
Contacts and locations
Locations
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Antoine Magnan
Nantes, 44035, France
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Hospital
Colmar, 68024, France
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Pascal Chanez
Marseille, 13008, France
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University Hospital
Montpellier, 34295, France
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University Hospital, Strasbourg, France
Strasbourg, 67000, France
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