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The investigators assess the prevalence of airway disease associated with idiopathic pulmonary fibrosis in Korea, and evaluate the effect of these airway diseases on the symptoms and quality of life of patients with idiopathic pulmonary fibrosis.
Idiopathic pulmonary fibrosis (IPF) is defined as a specific form of chronic, progressive fibrosing interstitial pneumonia of unknown cause, occurring primarily in older adults, and limited to the lungs. It is characterized by progressive worsening of dyspnea and lung function and is associated with a poor prognosis.
The main symptoms of patients with IPF are dyspnea on exertion and a persistent dry cough or mildly productive cough.
In many IPF patients, cough is often the first symptom, preceding dyspnea on exertion sometimes by years. It affects upwards of 70-85% of patients with IPF.
Chronic obstructive pulmonary disease (prevalence rate 4-18%) and asthma (prevalence rate 5.9-9.9%) are the airway disease whose main symptoms are also dyspnea and cough.
To date, the effect of airway disease has not been well studied in patients with idiopathic pulmonary fibrosis, and the prevalence is unknown in Korea.
Unlike idiopathic pulmonary fibrosis, airway disease is a treatable, modifiable disease, so treatment of these diseases may improve QOL in IPF patients.
Therefore, this study's purpose is A. Identify the prevalence of airway disease in IPF patients B. Identify differences in QOL and symptoms according to presence of airway disease C. Identify the symptomatic improvement after active treatment for the airway diseases
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Confirmation of Airway Disease combined with IPF | Diagnostic Test | To confirm the airway disease combined with IPF, PFT+BDR+DLCO, MBPT, Induced sputum exam, MAST, Total IgE, serum Eosinophil count, FENO will be done at the time of registration and 6~8 weeks later. |
| Measure | Description | Time Frame |
|---|---|---|
| Number of participants who have asthma combined with idiopathic pulmonary fibrosis | Confirmation of asthma : pulmonary function test with bronchodilator response or Methacholine provocation test | Through study completion, an average of 2 year |
| Number of participants who have COPD combined with idiopathic pulmonary fibrosis | Confirmation of COPD : pulmonary function test with bronchodilator response | Through study completion, an average of 2 year |
| Number of participants who have Eosinophilic bronchitis combined with idiopathic pulmonary fibrosis | Confirmation of Eosinophilic bronchitis : pulmonary function test with bronchodilator response, induced sputum | Through study completion, an average of 2 year |
| Measure | Description | Time Frame |
|---|---|---|
| The difference of CAT scores between patients with airway disease and those without airway disease. | Quality of life : COPD assessment test(CAT) | baseline and after treating the airway disease for 6~8 weeks |
| The difference of SGRQ scores to assess quality of life between patients with airway disease and those without airway disease. |
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Inclusion Criteria:
Exclusion Criteria:
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ILD registry(Seoul National University IRB, IRB No. 1312-048-542), outpatient department, ward
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Choi Sun Mi | Contact | 02-2072-4915 | sunmich81@gmail.com | |
| PARK HEEMOON | Contact | coramdeo33@gmail.com |
| Name | Affiliation | Role |
|---|---|---|
| Choi Sun Mi | Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine and Lung institute, Seoul National University College of Medicine, Seoul, Korea | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Seoul National University Hospital | Recruiting | Seoul | South Korea |
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| ID | Term |
|---|---|
| D054990 | Idiopathic Pulmonary Fibrosis |
| ID | Term |
|---|---|
| D011658 | Pulmonary Fibrosis |
| D017563 | Lung Diseases, Interstitial |
| D008171 | Lung Diseases |
| D012140 | Respiratory Tract Diseases |
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Quality of life : St George's Respiratory Questionnaire(SGRQ) |
| baseline and after treating the airway disease for 6~8 weeks |
| The difference of mMRC scores to assess symptom severity between patients with airway disease and those without airway disease. | Symptom severity : mMRC | baseline and after treating the airway disease for 6~8 weeks |
| The difference of distance of 6MWT to assess symptom severity between patients with airway disease and those without airway disease. | Symptom severity : 6 minute walking test(6MWT) | baseline and after treating the airway disease for 6~8 weeks |
| The difference of EQ-5D-VAS scores to assess symptom severity between patients with airway disease and those without airway disease. | Symptom severity : EQ-5D-VAS | baseline and after treating the airway disease for 6~8 weeks |
| The difference of CQLQ scores to assess symptom severity between patients with airway disease and those without airway disease. | Symptom severity : Cough Quality-of-Life Questionnaire(CQLQ) | baseline and after treating the airway disease for 6~8 weeks |
| Checking the improvement of CAT score to assess the quality of life between patients with airway disease and those without airway disease | Quality of life : COPD assessment test(CAT) | After treating the airway disease for 6~8 weeks |
| Checking the improvement of SGRQ score to assess the quality of life between patients with airway disease and those without airway disease | Quality of life : St George's Respiratory Questionnaire(SGRQ) | After treating the airway disease for 6~8 weeks |
| Checking the improvement of mMRC scores to assess symptom severity between patients with airway disease and those without airway disease | Symptom severity : mMRC | After treating the airway disease for 6~8 weeks |
| Checking the improvement of distance of 6MWT to assess symptom severity between patients with airway disease and those without airway disease | Symptom severity : 6 minute walking test(6MWT) | After treating the airway disease for 6~8 weeks |
| Checking the improvement of EQ-5D-VAS score to assess symptom severity between patients with airway disease and those without airway disease | Symptom severity : EQ-5D-VAS | After treating the airway disease for 6~8 weeks |
| Checking the improvement of CQLQ to assess symptom severity between patients with airway disease and those without airway disease | Symptom severity : Cough Quality-of-Life Questionnaire(CQLQ) | After treating the airway disease for 6~8 weeks |