A Study About Association Between Microbiome, Metabolome and Clinical Characteristics in COPD Patients

NCT ID: NCT06101459

Last Updated: 2023-10-26

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Total Enrollment

300 participants

Study Classification

OBSERVATIONAL

Study Start Date

2023-12-01

Study Completion Date

2028-12-31

Brief Summary

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The goal of this observational registry study is to compare characteristics of gut and sputum microbiome and metabolome among COPD patients with significant smoking history, COPD patients without significant smoking history and healthy smoker. Additionally, the investigators investigate the difference of blood metabolites and peripheral blood mononuclear cells level among groups.

The main questions it aims to answer are:

* Are there significant difference in fecal or sputum microbiome and metabolome between COPD patients and healthy smoker?
* Are there any distinct characteristics in microbiome and metabolome in COPD with COPD patients with significant smoking history, COPD patients without significant smoking history compared with healthy smoker?
* Are there any difference in blood metabolites and peripheral blood mononuclear cells levels among patients with significant smoking history, COPD patients without significant smoking history and healthy smoker
* Might distinct characteristics of microbiome and metabolites in COPD patients be related to worse clinical outcomes in COPD patients?

Detailed Description

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Conditions

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Chronic Obstructive Pulmonary Disease

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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COPD patient with significant smoking history

Patients with following conditions

1. smoking history more than 30 pack\*year
2. FEV1/FVC ratio \<0.7
3. No acute exacerbation history within 3 months

No interventions assigned to this group

COPD patient without significant smoking history

Patients with following conditions

1. smoking history less than 0.5 pack\*year
2. FEV1/FVC ratio \<0.7
3. No acute exacerbation history within 3 months

No interventions assigned to this group

Healthy smoker

Patients with following conditions

1. smoking history more than 30 pack\*year
2. FEV1/FVC ratio ≥0.7
3. No current use of medication for any chronic respiratory disease

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* COPD Patients, defined by FEV1/FVC \<0.7, who

* agree with informed consent
* have no history of acute exacerbation within 3 months
* Healthy smoker without airflow limitation, defined by FEV1/FVC ≥0.7, who

* have smoking history with at least 30 pack-year
* agree with informed consent
* do not use medication for chronic respiratory disease

Exclusion Criteria

* Withdrawal of informed consent
* History of acute exacerbation or antibiotics use within 3 months
* Difficulty to collect adequate stool, sputum and blood samples
Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Seoul National University College of Medicine

UNKNOWN

Sponsor Role collaborator

HEM Pharma Inc.

INDUSTRY

Sponsor Role collaborator

Asan Medical Center

OTHER

Sponsor Role lead

Responsible Party

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Sei Won Lee

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Other Identifiers

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2023-1049

Identifier Type: -

Identifier Source: org_study_id

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