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  • Title: Infliximab Originator, Infliximab Biosimilar, and Adalimumab Are More Effective in Crohn's Disease Than Ulcerative Colitis: A Real-Life Cohort Study.
    Author: Barberio B, Zingone F, D'Incà R, Rovigo L, Bertani L, Bodini G, Ghisa M, Gubbiotti A, Massimi D, Lorenzon G, Savarino EV.
    Journal: Clin Transl Gastroenterol; 2020 May; 11(5):e00177. PubMed ID: 32677808.
    Abstract:
    INTRODUCTION: There are no real-life studies comparing the efficacy and safety of the different antitumor necrosis factor (TNF)-α drugs available in patients with ulcerative colitis (UC) and Crohn's disease (CD). To verify the effectiveness and tolerability of different anti-TNF-α agents (infliximab [IFX] originator, biosimilar CTP13, and adalimumab [ADA]) in patients with moderate-to-severe CD and UC. METHODS: Retrospectively, patients with moderate-to-severe inflammatory bowel disease who completed induction with either ADA, IFX originator, or biosimilar from 2015 to 2017 were included. Patients were evaluated after induction at 30 and 52 weeks. We performed an intention-to-treat analysis to evaluate clinical response and remission, steroid-free clinical remission, and endoscopy response according to different time points. At every time point, the need for dose escalation and occurrence of adverse events have been reported. RESULTS: Eighty-nine patients with UC (31 ADA, 30 IFX originator, and 28 IFX biosimilar) and 90 patients with CD (30 for each drug groups) were enrolled. After induction at week 30 and 52, clinical response was obtained by the following: 84.3%, 86.5%, and 82% of UC and 93.3%, 88.9%, and 80% of CD. Clinical steroid-free remission rates were significantly higher in the CD group compared with the UC group at every time point (P < 0.05). At week 52, 31.1% of ADA, 16.7% of IFX originator, and 36.2% of biosimilar patients needed treatment optimization. At week 52, 13 patients had suspended therapy because of severe adverse events, including 3 cases of malignant disease. DISCUSSION: Anti-TNF-α treatment was more effective in patients with CD compared to patients with UC, independently of the drug used.
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