A prospective study of the OSA of airway pathogens with COPD in the aetiology of exacerbations in COPD

Status

Recruiting

Phases

Early Phase 1

Study type

Observational

Source

ChiCTR

Registry ID

ChiCTR2000039636

Enrollment

Unknown

Registered

2020-11-04

Start date

2020-11-01

Completion date

Unknown

Last updated

2021-02-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

COPD

Interventions

COPD patients with OSA vs. COPD patients without OSA:Nil

Eligibility

Sex/Gender

All

Age

40 Years to 85 Years

Inclusion criteria

Inclusion criteria: 1. Subjects with written informed consent. 2. Subjects aged 40-85 years. 3. Patients with FEV1 / predictive value = 10 pack years. Smoking cessation means having stopped smoking for at least 6 months. Package years = (daily smoking / 20) x smoking years. 5. Subjects with a history of COPD more than 1 year. 6. Subjects without acute exacerbation of COPD in at least one month and stable condition at present, and subjects without any antibiotics and oral hormones in recent one month.

Exclusion criteria

Exclusion criteria: 1. Subjects who have been definitely diagnosed with asthma, interstitial lung disease, bronchiectasis or other respiratory diseases (such as tuberculosis, lung cancer, etc.). 2. Subjects with lung surgery. 3. Subjects receiving immunotherapy. 4. Pregnant or lactating subjects.

Design outcomes

Primary

Measure	Time frame
Colonizing bacteria in sputum;	—

Countries

China

Contacts

Public ContactLai Yan-ping

The second hospital of Tianjin Medical University

laintianyun@163.com+86 13802071635

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026