Observing lung health in early COPD patients

Lung Health of Early Chronic Obstructive Pulmonary Disease: A Multi-center Cohort Study

China-Japan Friendship Hospital · NCT05466396

This study looks at how lung health changes in people with early COPD and how smoking and other factors might affect that decline.

Quick facts

Study typeObservational
Enrollment1550 (estimated)
Ages35 Years to 75 Years
SexAll
SponsorChina-Japan Friendship Hospital (other)
Locations2 sites (Beijing, Beijing Municipality and 1 other locations)
Trial IDNCT05466396 on ClinicalTrials.gov

What this trial studies

This multi-center, prospective cohort study focuses on patients with early Chronic Obstructive Pulmonary Disease (COPD). It aims to investigate the decline in lung function and its relationship with smoking and other risk factors. The study will analyze various biomarkers and imaging results from chest CT scans to better understand lung health in these patients. By gathering data from multiple centers, the study seeks to provide a comprehensive view of early COPD progression.

Who should consider this trial

Good fit: Ideal candidates for this study are individuals aged 35-75 with early COPD characterized by specific spirometry results.

Not a fit: Patients with other significant lung diseases or conditions that could affect lung function may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved understanding and management of early COPD, potentially enhancing patient outcomes.

How similar studies have performed: While there have been studies on COPD, this specific approach focusing on early COPD and its risk factors is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Gender: male or female
2. Age: 35-75 years old
3. post-bronchodilator spirometry: FEV1/FVC \< 0.8 and FEV1%pred ≥80%

Exclusion Criteria:

1. Other diseases may affect lung function, like lung cancer, bronchiectasis, interstitial lung disease or chest surgery.
2. BMI \> 35 kg/m2
3. Dementia or other severe neurological disease
4. Pregnancy
5. Conditions that contraindicated lung function test

Where this trial is running

Beijing, Beijing Municipality and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: COPD, early COPD, spirometry, lung health

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.