Asthma
Conditions
Interventions
None listed
Sponsors
National Hospital Organization Tokyo National Hospital
National Hospital Organization Mito Medical Center National Hospital Organization Ibarakihigashi National Hospital National Hospital Organization Tokyo Medical Center National Hospital Organization Disaster Medical Center National Hospital Organization Sagamihara Hospital National Hospital Organization Nagoya Medical Center National Hospital Organization Kanazawa Medical Center National Hospital Organization Wakayama National Hospital National Hospital Organization Kinki-chuo Chest Medi
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. asthma patients aged 65 years or older visiting the study institutions 2. asthma patients who have had asthma for more than 1 year 3. patients with the peripheral blood eosinophil count data taken before 65 years of age 4. patients with the data of %FEV1 taken before 65 years of age
Exclusion criteria
Exclusion criteria: 1. patients with chronic respiratory diseases other than asthma and COPD 2. patients with a history of surgery, congenital diseases, or mental disorders that may affect pulmonary function tests 3. patients with hematologic or autoimmune diseases that may affect peripheral blood eosinophil counts 4. patients with mental disorders that may affect the asthma questionnaires 5. patients with hematologic, infectious, autoimmune, malignant, or inflammatory diseases that may affect the serum biomarkers 6. patients who are judged to be inappropriate to participate in this study by primary physicion
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The phenotype transition pattern of non-elderly to elderly asthma | — |
Secondary
| Measure | Time frame |
|---|---|
| Factors related to phenotype transition pattern | — |
Countries
Japan
Contacts
Public ContactMaho Suzukawa
National Hospital Organization Tokyo National Hospital Clinical Research Center
Outcome results
None listed