Examining the microbiological diversity in exhaled air of COPD and non-COPD patients
Official title: Study of Microbiological Diversity in Exhaled Air in Adult Subjects With Chronic Obstructive Pulmonary Disease (COPD) and Subjects Free of COPD
Run by Centre Hospitalier Intercommunal Creteil · NCT05437198 · Data updated 2026-11-12
This study is trying to see how the germs in the breath of people with COPD compare to those without the condition to better understand their health.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years to 70 Years |
| Sex | All |
| Enrollment | 240 (estimated) |
| Sponsor | Centre Hospitalier Intercommunal Creteil Academic / other |
| Locations | 1 site (Créteil) |
| Status | Recruiting |
| Started | March 26, 2024 |
| Main results expected | March 2028 |
| Study ends | March 2029 |
| Registry record updated | June 16, 2026 |
| Trial ID | NCT05437198 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates include adults over 18 with a diagnosis of COPD or healthy individuals aged 18-30 and 45-70 without COPD.
✕Probably not a fit
Patients with chronic infectious pulmonary conditions or those on specific medications may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This observational study aims to analyze the microbiological diversity present in the exhaled air of patients with chronic obstructive pulmonary disease (COPD) and those without the condition. Participants will be recruited during medical visits in the Departments of Pneumology and Occupational and Environmental Pathologies, where their clinical data, health status, and smoking history will be collected. Exhalation samples will be taken from different groups based on their health status, age, and smoking habits, with a follow-up collection scheduled for one year later.
Why it matters
Potential benefit: If successful, this study could enhance understanding of the microbiome's role in COPD, potentially leading to improved diagnostic and therapeutic strategies.
How similar studies have gone: While studies on microbiological diversity in respiratory conditions exist, this specific approach focusing on exhaled air in both COPD and non-COPD patients is relatively novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: For COPD: * Patients with chronic obstructive pulmonary disease * Age: over 18 For non-COPD * Absence of chronic obstructive pulmonary disease * Age: between 18 and 30 years old and between 45 and 70 years old Exclusion Criteria: * Taking certain medications in the month preceding the sample (antibiotics, systemic corticosteroids, immunosuppressants) * Person under guardianship or curatorship * Pregnant or breastfeeding women * Person unable to express his/her opposition, person deprived of liberty * Existence of a chronic infectious pulmonary pathology such as (dilation of the bronchi, cystic fibrosis)
Where it's running
-
Centre Hospitalier Intercommunal de Créteil
Créteil, France Recruiting
Study contacts
- Principal investigator: Jean Claude PAIRON, PhD — CHI créteil
- Study coordinator: Jean-Claude PAIRON, PhD
- Email: jc.pairon@chicreteil.fr
- Phone: 01 45 02 20 93
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Flutter therapy added to chest physiotherapy after CABG in COPD patients
This study tests whether adding Flutter therapy to standard chest physiotherapy helps post-CABG patients with mild-to-moderate COPD improve breathing more than chest physiotherapy alone.
-
TPB-based cadence exercise and breathing training for COPD patients
A TPB-based program tests whether breathing training, cadence-guided walking, or both can improve lung function, exercise capacity, and quality of life in adults with COPD.
-
See how dynamic chest X-rays relate to COPD patterns and progression risk
This study looks at existing dynamic chest radiography data to see if new imaging measurements can identify COPD patterns, gauge severity, and predict who may experience faster progression.
-
Personalized mobile app warnings to reduce COPD flares
A personalized mobile app tests whether providing temperature-related risk warnings and protective tips, in addition to usual COPD care, can lower COPD flare-ups over 12 months.
-
CLEAR model to predict when people with severe COPD can be taken off ventilatory support
This project will see if the CLEAR model can predict which adults with severe COPD on invasive or non‑invasive ventilation can be safely taken off ventilatory support.
-
Long-term safety of Tozorakimab in COPD patients with prior exacerbations
This study tests two long-term dosing regimens of tozorakimab in people with COPD who have a history of flare-ups and who completed earlier studies.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.