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        Safety and effectiveness of adalimumab in the treatment of ulcerative colitis: results from a large-scale, prospective, multicenter, observational study

        ( Haruhiko Ogata ),( Takashi Hagiwara ),( Takeshi Kawaberi ),( Mariko Kobayashi ),( Toshifumi Hibi ) 대한장연구학회 2021 Intestinal Research Vol.19 No.4

        Background/Aims: Adalimumab has been shown to induce and maintain clinical remission in patients with moderate to se-vere ulcerative colitis (UC). However, no large-scale population-based studies have been performed in Japan. This study was conducted to evaluate the safety and effectiveness of adalimumab in clinical practice in Japanese patients with UC. Methods: In this 52-week, prospective, multicenter, single-cohort, noninterventional, observational, postmarketing surveillance study, patients with moderate to severe UC received an initial subcutaneous injection of adalimumab 160 mg, followed by 80 mg at 2 weeks, and then 40 mg every other week. Safety assessments were the incidence of adverse drug reactions (ADRs) and seri-ous ADRs. Effectiveness assessments were clinical remission, corticosteroid-free remission, mucosal healing, and change in C-reactive protein (CRP) levels from baseline. Results: Of 1,593 registered patients, 1,523 (male, 57.6%; mean age, 41.8 years) and 1,241 patients were included in the safety and effectiveness populations, respectively. ADRs were reported in 18.1% and serious ADRs in 4.9% of patients. Clinical remission was achieved in 49.7% of patients at week 4, increasing to 74.4% at week 52. Corticosteroid-free remission rates increased over time, from 10.4% at week 4 to 53.1% at week 52. More than 60% of patients demonstrated mucosal healing at weeks 24 and 52. Mean CRP levels (mg/dL) decreased from 1.2 at baseline to 0.6 at week 4 and 0.3 at week 52. Conclusions: This large real-world study confirmed the safety and effectiveness of adalimumab in patients with UC in Japan. No new safety concerns were identified. (Intest Res 2021;19:419-429)

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        Long-term safety and effectiveness of adalimumab in Japanese patients with Crohn’s disease: 3-year results from a real-world study

        ( Tadakazu Hisamatsu ),( Yasuo Suzuki ),( Mariko Kobayashi ),( Takashi Hagiwara ),( Takeshi Kawaberi ),( Haruhiko Ogata ),( Toshiyuki Matsui ),( Mamoru Watanabe ),( Toshifumi Hibi ) 대한장연구학회 2021 Intestinal Research Vol.19 No.4

        Background/Aims: Crohn’s disease is a chronic disorder; therefore, it is essential to investigate long-term safety and efficacy of treatments. This study assessed the safety and effectiveness of adalimumab for up to 3 years in Japanese patients with Crohn’s disease in real-world settings. Methods: This was a multicenter, single-cohort, observational study of patients with Crohn’s disease. Safety assessments included incidence of adverse drug reactions. Effectiveness assessments included clinical remis-sion, mucosal healing, and Work Productivity and Activity Impairment (WPAI). Results: The safety and effectiveness analysis populations comprised 389 and 310 patients, respectively. Mean (standard deviation) exposure to adalimumab in the safety analysis population was 793.4 (402.8) days, with a 58.1% retention rate. A total of 105 patients (27.0%) and 43 patients (11.1%) experienced adverse drug reactions and serious adverse drug reactions, respectively, with no patient reporting tuberculosis or hepatitis B. Infections and serious infections were reported in 37 patients (9.5%) and 17 patients (4.4%), respectively. Malig-nancy was reported as an adverse drug reaction in 2 patients (0.5%). Remission rate increased from 37.8% (98/259) at baseline to 73.9% (167/226) at week 4 and remained >70% over 3 years. Proportion of patients without mucosal ulcerations increased from 2.7% (2/73) at baseline to 42.3% (11/26) between years >2 to ≤3. WPAI improvement started at 4 weeks, with the overall work impairment score improving from 42.7 (n=102) at baseline to 26.9 (n=84) at 4 weeks. Conclusions: Results from this study confirm the long-term safety and effectiveness of adalimumab treatment in Japanese patients with Crohn’s disease in the real-world setting. (Intest Res 2021;19:408-418)

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