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  • Title: Biologic Use Patterns and Predictors for Non-persistence and Switching of Biologics in Patients with Inflammatory Bowel Disease: A Nationwide Population-Based Study.
    Author: Jung YS, Han M, Park S, Cheon JH.
    Journal: Dig Dis Sci; 2020 May; 65(5):1436-1444. PubMed ID: 31677070.
    Abstract:
    BACKGROUND: Data on real-life patterns of biologic use for inflammatory bowel disease (IBD) are scarce. AIMS: We aimed to examine the patterns of biologic use and the factors associated with non-persistence and switching of biologics in Korean IBD patients. METHODS: Using National Health Insurance claims, we collected data on patients who were diagnosed with IBD and exposed to biologics between 2010 and 2016. RESULTS: Among 1838 patients with Crohn's disease (CD), 1237 and 601 started with infliximab and adalimumab, respectively. Among 1125 patients with ulcerative colitis (UC), 774, 294, and 57 initiated infliximab, adalimumab, and golimumab, respectively. Rates of non-persistence and switching were higher in UC than in CD. One- and 3-year non-persistence rates were 14.2% and 26.5% in CD and 35.4% and 53.4% in UC, respectively. One- and 3-year switching rates were 3.7% and 10.1% in CD and 15.6% and 22.0% in UC, respectively. In both CD and UC, infliximab and adalimumab initiators showed similar persistence rates, whereas adalimumab initiators had a higher risk of switching than infliximab initiators. In UC, golimumab initiators had a higher risk of non-persistence and switching than infliximab initiators. Steroid use at biologic initiation was associated with an increased risk of non-persistence and switching in both CD and UC. UC patients who started biologic treatment at tertiary hospitals were more likely to continue treatment than those who started at general hospitals/community hospitals/clinics. CONCLUSIONS: In real-world clinical practice settings, discontinuation of biologics occurred frequently in IBD patients, and switching of biologics was common in UC patients.
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