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  • Title: Efficacy and safety of biosimilar infliximab in bio-naïve patients with Crohn's disease.
    Author: Oike T, Akizue N, Ohta Y, Koseki H, Saito M, Yokoyama Y, Imai Y, Taida T, Okimoto K, Saito K, Ogasawara S, Matsumura T, Nakagawa T, Arai M, Katsuno T, Fukuda Y, Kitsukawa Y, Kato J, Kato N.
    Journal: Arab J Gastroenterol; 2024 Aug; 25(3):257-262. PubMed ID: 38714472.
    Abstract:
    BACKGROUND AND STUDY AIMS: The infliximab biosimilar CT-P13 was the first biosimilar drug targeting tumor necrosis factor-α. However, its efficacy and safety in real-world clinical situations have remained insufficient. Therefore, we aimed to verify the efficacy and safety of CT-P13 in bio-naïve patients with Crohn's disease. PATIENTS AND METHODS: This retrospective multicenter study compared the remission rate at week 54 between patients with Crohn's disease who were treated with originator infliximab or CT-P13. Endoscopic and laboratory findings were assessed in both groups. A total of 184 (156 originator and 28 CT-P13) patients were analyzed. Of these, 138 originator users and 19 biosimilar users completed 54-week administration. RESULTS: The clinical remission rates in patients taking originator infliximab of CT-P13 at week 54 were 92.5 % and 100 %, respectively. The endoscopic scores of each group significantly decreased from baseline at week 54 in both groups, and the mucosal healing rate at week 54 was 53 % and 64 %, respectively. Laboratory data including C-reactive protein, serum albumin, and hemoglobin significantly improved from baseline to week 14 and 54 in both groups. Adverse events were observed more frequently in the CT-P13 group (25 % vs. 4.5 %, p = 0.0015), but severe adverse events were rare in both groups. CONCLUSION: The efficacy and safety of CT-P13 were comparable with those of originator infliximab in bio-naïve patients with Crohn's disease evaluated by clinical, endoscopic, and laboratory findings. This study establishes the needed groundwork for the development of a strategy for treatment with biologics in patients with Crohn's disease.
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