Results: In total, 17 patients were able to continue JAKi for over 12 months, while 9 discontinued. f these 17 patients, 12 patients were analyzed using CT scores. The CT-GGO scores were significantly decreased, but the CT-fibrosis scores remained steady throughout the 12 months. (p=0.037 and p=0.813, respectively). The DAS28-CRP and prednisolone dosage were significantly decreased from the initiation to 12 months later(p<0.001 and p=0.031, respectively). Among the 26 patients, no exacerbation of existing ILD and two infections(same patient)requiring hospitalization were observed(6.4/100 person-year).