Interstitial lung disease in idiopathic inflammatory myopathy Respiratory Interstitial pulmonary disease in Inflammatory myopathy
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Aged =18 years 2. Diagnosis of dermatomyositis, polymyositis or amyopathic dermatomyositis that meets the 2017 ACR/EULAR classification criteria 3. Attending a regular outpatient visit or hospitalization in the First Affiliated Hospital, College of Medicine, Zhejiang University
Exclusion criteria
Exclusion criteria: 1. Overlap syndromes with other connective tissue diseases (CTDs) 2. Attending outpatient visit or hospitalization for reasons unrelated to myositis and its complications, such as fracture, pregnancy, acquired immunodeficiency syndrome, cataract, and etc. 3. Previous use of nintedanib, or previous/present use of pirfenidone 4. Loss to follow-up without death from any cause within 6 months after the initial outpatient visit or hospitalization
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 1. Occurrence of rapid progression of interstitial lung disease (RP-ILD), measured by the number of participants meeting the criteria of RP-ILD, assessed at the end of the follow-up. Patients with RP-ILD are defined as those presenting with progressive dyspnea and progressive hypoxemia, a worsening of interstitial change on the chest radiograph within 1 month after the initial visit or onset of respiratory symptoms. | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Time to death from any cause, measured through recording of survival or not and the length of follow-up, at the end of the follow-up. Cause of death will also be recorded in the follow-up such as exacerbation of interstitial lung disease, cardiopulmonary failure of unknown origin, pulmonary artery hypertension, etc. 2. Complications of pulmonary infection, measured and recorded in the process of follow-up, at the end of follow-up. Pulmonary infection will be identified based on International Statistical Classification of Diseases, 10th revision (ICD-10)-coded discharge diagnosis of community-acquired pneumonia (CAP), hospital-acquired pneumonia (HAP), pulmonary fungal infection or pulmonary infection. Responsible pathogens were recognized based on repeated cultures/smears of bronchoalveolar lavage fluid (BALF) or sputum before related treatment. 3. Difference in immunosuppressive regimen such as dose of steroid, whether the potent and expensive intravenous immunoglobulin was used, etc. measured and recorded in the process of follow-up, at the end of follow-up 4. Tolerability of nintedanib will be measured as the incidence of adverse events, the incidence of dose reduction, or discontinuation due to adverse events, at the end of follow-up | — |
Countries
China