4.5 Article

The PROSIT Cohort of Infliximab Biosimilar in IBD: A Prolonged Follow-up on the Effectiveness and Safety Across Italy

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INFLAMMATORY BOWEL DISEASES
卷 25, 期 3, 页码 568-579

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OXFORD UNIV PRESS INC
DOI: 10.1093/ibd/izy264

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Crohn's disease; ulcerative colitis; inflammatory bowel disease; Infliximab; Remsima; Inflectra; biosimilar; CT-P13

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Background We report a prospective, nationwide cohort evaluating the safety and effectiveness of CT-P13. Methods A structured database was used to record serious adverse events (SAEs), clinical remission/response, inflammatory biomarkers (CRP and calprotectin), and endoscopic findings. Results Eight hundred ten patients with inflammatory bowel disease (IBD) (452 Crohn's disease [CD]) were enrolled. Four hundred fifty-nine patients were naive to anti-TNF (group A), 196 had a previous exposure (group B), and the remaining 155 were switched to CT-P13 (group C). All patients were included in the safety evaluation with a mean follow-up of 345 215 days and a total number of 6501 infusions. One hundred fifty-four SAEs were reported (19%), leading to cessation of the biosimilar in 103 subjects (12.7%). Infusion reactions were 71, leading to cessation of the biosimilar in 53 subjects (6.5%), being significantly more frequent in patients pre-exposed to anti-TNF (P = 0.017). The efficacy of therapy was calculated in 754 IBD patients, with a mean follow-up of 329 +/- 202 days. Forty-eight patients had a primary failure (6.4%), and 188 (25.6%) lost response during follow-up. Six hundred twenty-eight (364 CD) and 360 IBD patients (222 CD) completed the follow-up at 6 and 12 months, respectively. At 12 months, patients without loss of response were 71%, 64%. and 82% in groups A, B, and C, respectively (log rank P = 0.01). Clinical/endoscopic scores and inflammatory biomarkers dropped significantly in CD and UC patients (P = 0.01 and P < 0.0001) compared with baseline. Conclusions In this large prospective cohort, no further signals of difference in safety and effectiveness of CT-P13 in IBD has been observed.

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