None listed
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1) Adult men and women aged 19 to 80 at the time of screening 2) Non-smokers (those who quit smoking at least 3 months prior to the screening) 3) Individuals with at least two persistent respiratory discomfort symptoms (e.g., cough, sputum, shortness of breath, or chest tightness) for more than one month prior to the screening 4) Individuals who have received a detailed explanation of the study, fully understand it, and voluntarily decide to participate by providing written consent to comply with the precautions
Exclusion criteria
Exclusion criteria: 1) Individuals showing signs of airflow limitation in pulmonary function tests (post-bronchodilator FEV1/FVC 3 times the upper limit of the reference range (Serum Creatinine > 2.0 mg/dL) 16) Women who are pregnant, breastfeeding, or planning to become pregnant 17) Women of childbearing age who do not agree to use appropriate contraception 18) Individuals deemed unsuitable for participation in the study by the principal investigator due to diagnostic laboratory results or other reasons
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Saint George’s respiratory questionnaire (SGRQ);Chronic obstructive pulmonary disease assessment test(CAT) ;Breathlessness, cough, and sputum scale(BCSS) | — |
Secondary
| Measure | Time frame |
|---|---|
| pulmonary function test (PFT); Forced vital capacity(FVC), Forced expiratory volume in 1 second(FEV1), FEV1/FVC;(Modified medical research council dyspnea scale(mMRC) ;Inflammatory Markers: hs-CRP (high-sensitivity C-reactive protein), ESR (erythrocyte sedimentation rate);Quality of Life Questionnaire (EuroQol-5 Dimensions, EQ-5D);Wisconsin upper respiratory symptom survey-21(WURSS-21) | — |
Countries
Korea, Republic of
Contacts
Jeonbuk National University Hospital