Research Study in Patients With COPD in High Risk Population in Japan: Proportion of Overlap Between COPD and Asthma, and the Relationship With COPD Exacerbatio
- Conditions
- COPD
- Registration Number
- JPRN-UMIN000018244
- Lead Sponsor
- AstraZeneca K.K.
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Complete: follow-up complete
- Sex
- All
- Target Recruitment
- 1100
Patients with a diagnosis of COPD (FEV1/FVC<0.7 confirmed based on the past medical records)
-Patients aged 40 years and over at the diagnosis of COPD
-Outpatient
-10 or more pack-years of current or former smokers
-Patients who have traceable medical records of COPD (including the results of spirometry) going back more than a year
-Patients who meet any of the following two criteria
1.Patients who have medical records of the results of spirometry at more than two different time points excluding the time point of COPD exacerbations* for the past 3 years
2.Patients who can provide the results of reversibility testing for respiratory tract
-Patients who give written informed consent regarding the participation in this study
-Patients currently with COPD exacerbations
-Patients who currently enroll in the other interventional study including clinical trials
-Patients who concurrently develop or have a history of lung cancer
-Patients who are disabled to understand the study procedure or answer the questionnaire (i.e. due to the history of alcohol or drug abuse)
Study & Design
- Study Type
- Observational
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method
- Secondary Outcome Measures
Name Time Method