{"title":"Baricitinib for acute exacerbation in idiopathic interstitial pneumonias: A preliminary study using propensity score matching.","authors":"Hideaki Yamakawa, Shintaro Sato, Hiroki Ohta, Kenji Kusano, Moe Nomaki, Rie Kawabe, Chisa Uzuka, Hiroki Sasaki, Masako Amano, Tamiko Takemura, Jun Araya, Hidekazu Matsushima","doi":"10.1159/000547356","DOIUrl":null,"url":null,"abstract":"<p><strong>Background and objective: </strong>Acute exacerbation of interstitial lung disease (AE-ILD) is a life-threatening complication for which there are only limited treatment options, with essentially no established treatment options. Janus kinase (JAK) inhibitors, such as baricitinib, have recently emerged as potential therapeutic candidates for severe and progressive forms of ILD. This study aimed to evaluate the efficacy and safety of baricitinib in patients with AE-ILD associated with idiopathic interstitial pneumonias (IIPs).</p><p><strong>Methods: </strong>This retrospective cohort study included patients with IIPs who experienced AE-ILD, and were admitted to a single tertiary care center. Patients treated with baricitinib (Dec 2022-Jun 2024) were compared with historical controls (Jan 2021-Nov 2022). Propensity score matching (PSM) was conducted using age, PaO₂/FiO₂ ratio, and fibrosis score. The primary outcome was overall survival; secondary outcomes included 90-day survival and adverse events.</p><p><strong>Results: </strong>After PSM, 17 patients were analyzed in each group. The 90-day survival rate in the baricitinib group (82.4%) was significantly higher than in the control group (52.9%, P = 0.049), while longer-term survival did not differ to a statistically significant extent. Baricitinib was well tolerated, with only mild adverse events observed. A trend toward improved 90-day survival was also noted with anti-fibrotic therapy administered during AE-ILD (P = 0.089).</p><p><strong>Conclusions: </strong>Baricitinib may improve short-term survival in AE-ILD and was well tolerated in the acute phase. Its dual JAK1/2 inhibition suggests both anti-inflammatory and antifibrotic potential. Further prospective studies are needed to confirm these findings and explore combination therapies.</p>","PeriodicalId":21048,"journal":{"name":"Respiration","volume":" ","pages":"1-25"},"PeriodicalIF":3.8000,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Respiration","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1159/000547356","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"RESPIRATORY SYSTEM","Score":null,"Total":0}
引用次数: 0
Abstract
Background and objective: Acute exacerbation of interstitial lung disease (AE-ILD) is a life-threatening complication for which there are only limited treatment options, with essentially no established treatment options. Janus kinase (JAK) inhibitors, such as baricitinib, have recently emerged as potential therapeutic candidates for severe and progressive forms of ILD. This study aimed to evaluate the efficacy and safety of baricitinib in patients with AE-ILD associated with idiopathic interstitial pneumonias (IIPs).
Methods: This retrospective cohort study included patients with IIPs who experienced AE-ILD, and were admitted to a single tertiary care center. Patients treated with baricitinib (Dec 2022-Jun 2024) were compared with historical controls (Jan 2021-Nov 2022). Propensity score matching (PSM) was conducted using age, PaO₂/FiO₂ ratio, and fibrosis score. The primary outcome was overall survival; secondary outcomes included 90-day survival and adverse events.
Results: After PSM, 17 patients were analyzed in each group. The 90-day survival rate in the baricitinib group (82.4%) was significantly higher than in the control group (52.9%, P = 0.049), while longer-term survival did not differ to a statistically significant extent. Baricitinib was well tolerated, with only mild adverse events observed. A trend toward improved 90-day survival was also noted with anti-fibrotic therapy administered during AE-ILD (P = 0.089).
Conclusions: Baricitinib may improve short-term survival in AE-ILD and was well tolerated in the acute phase. Its dual JAK1/2 inhibition suggests both anti-inflammatory and antifibrotic potential. Further prospective studies are needed to confirm these findings and explore combination therapies.
期刊介绍:
''Respiration'' brings together the results of both clinical and experimental investigations on all aspects of the respiratory system in health and disease. Clinical improvements in the diagnosis and treatment of chest and lung diseases are covered, as are the latest findings in physiology, biochemistry, pathology, immunology and pharmacology. The journal includes classic features such as editorials that accompany original articles in clinical and basic science research, reviews and letters to the editor. Further sections are: Technical Notes, The Eye Catcher, What’s Your Diagnosis?, The Opinion Corner, New Drugs in Respiratory Medicine, New Insights from Clinical Practice and Guidelines. ''Respiration'' is the official journal of the Swiss Society for Pneumology (SGP) and also home to the European Association for Bronchology and Interventional Pulmonology (EABIP), which occupies a dedicated section on Interventional Pulmonology in the journal. This modern mix of different features and a stringent peer-review process by a dedicated editorial board make ''Respiration'' a complete guide to progress in thoracic medicine.