Bronchial asthma
Conditions
Interventions
None listed
Sponsors
Department of Respiratory Medicine and Allergology, Kindai University, Faculty of Medicine
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1) Diagnosed as bronchial asthma. 2) 20 or older at the time he or she gave consent. 3) Categorized into "mild and persistent" or "moderate and persistent" defined in the 2015 Asthma Prevention and Management Guideline. 4) Good control or better (20 points or more in the asthma control test (ACT)). 5) Written consent in accordance with the patient's free has been given after receiving and sufficiently understanding the explanation about enrollment in this study. 6) No problem in communication. 7) Outpatient
Exclusion criteria
Exclusion criteria: 1) Obviously has a chronic obstructive pulmonary disease (COPD). 2) Has a respiratory tract infection. 3) Determined by the investigator to be ineligible.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Deposition rate of peripheral airways calculated by FRI-based operation. | — |
Secondary
| Measure | Time frame |
|---|---|
| 1) The following indexes are calculated by FRI-based operation a. Deposition rate of airways and lobes b. Airway volume and airway resistance 2) Endpoints for respiratory function testing (after inhaling a bronchodilator) FEV1, %FEV1, FEV1%, FVC, Vdot50, Vdot25, %Vdot50, and %Vdot25 3) Endpoints for IOS measurement (after inhaling bronchodilator) R5, R20, R5-R20, X5, AX, Fres, R5 ex-in, R20 ex-in, R5-R20 ex-in, X5 ex-in, AX ex-in and Fres ex-in 4) Correlation between peripheral airway resistance and deposition rate | — |
Countries
Japan
Contacts
Public ContactMakoto Sawaguchi
Mebix, Inc. Research Promotion Division
Outcome results
None listed