Follows Korean adults with early chronic obstructive pulmonary disease over time
Observes people with mild to moderate COPD in Korea to learn how the disease progresses.
Plain-language title generated from the registry record
Registry title: KOrea COpd Subgroup Registry and Subtype Research
Key facts
- Where
- Seoul, South KoreaSee the site
Where in South Korea
- Konkuk University HospitalSeoul, South KoreaNo longer taking part
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Trial details
- Who runs it
- Konkuk University Medical Center
- Trial code
- NCT02800499
- Record updated
- 10 August 2026
- Original description
The KOrea COpd Subgroup Study team (KOCOSS) cohort is an ongoing, longitudinal, prospective, non-interventional and observational study within the Korean COPD patients. The prevalence of early COPD (mild to moderate COPD based by 2011 GOLD(the Global Initiative for Chronic Obstructive Lung Disease) guideline) is high in Korea. However, the patients with early COPD are not underdiagnosed due to mild symptom. The purpose of this study is to investigate early COPD characteristics and disease course and to form a guideline for early detection of COPD patients and prevention of progression to severe COPD.Read full original descriptionShow less
Domestic COPD Patients Registry Business and COPD Phenotype Research Based by Registry Data - Multi-centered Trial
The KOrea COpd Subgroup Study team (KOCOSS) cohort is an ongoing, longitudinal, prospective, non-interventional and observational study within the Korean COPD patients. The prevalence of early COPD (mild to moderate COPD based by 2011 GOLD(the Global Initiative for Chronic Obstructive Lung Disease) guideline) is high in Korea. However, the patients with early COPD are not underdiagnosed due to mild symptom. The purpose of this study is to investigate early COPD characteristics and disease course and to form a guideline for early detection of COPD patients and prevention of progression to severe COPD.
Inclusion: Over 40 years old South Korean COPD patients(Bronchodilator test results FEV1/FVC <0.7); COPD patients who complain of cough, sputum, dyspnea; Unrelated smoking history.
Exclusion: myocardial infarction or cerebrovascular event within the previous 3 months; other disease like asthma patients which is similar to COPD symptoms; cancer patients(including metastatic cancer, leukemia, lymphoma); irritable bowel syndrome; patients who use systemic steroids over 8 weeks due to other diseases except COPD; patients who is not suitable for pulmonary function test and communication; pregnants; patients who disagree with registration; rheumatoid patients.