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Buisson A, Nachury M, Reymond M, Yzet C, Wils P, Payen L, Laugie M, Manlay L, Mathieu N, Pereira B, Fumery M. Effectiveness of Switching From Intravenous to Subcutaneous Infliximab in Patients With Inflammatory Bowel Diseases: the REMSWITCH Study. Clin Gastroenterol Hepatol 2023; 21:2338-2346.e3. [PMID: 35987302 DOI: 10.1016/j.cgh.2022.08.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 07/26/2022] [Accepted: 08/11/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIMS We assessed the effectiveness of switching from intravenous to subcutaneous infliximab in patients with inflammatory bowel diseases (IBDs) treated with or without intensified intravenous regimen. METHODS In this multicenter observational study, IBD patients in clinical remission (partial Mayo score ≤2 or Harvey-Bradshaw index ≤4) were switched to a unique dose of subcutaneous infliximab (120 mg every other week). Pharmacological and biological data were collected at baseline, visit 1 (4-8 weeks postswitch), visit 2 (8-16 weeks postswitch), and visit 3 (16-24 weeks postswitch). Relapse was defined as clinical relapse or fecal calprotectin increase ≥150 μg/g compared with baseline. RESULTS Among 184 eligible patients, 72.3% (n = 133 of 184) agreed to switch to subcutaneous infliximab. At visit 3, a relapse occurred in 10.2% (n = 6 of 59), 7.3% (n = 3 of 38), 16.7% (n = 3 of 18), and 66.7% (n = 10 of 15) (P < .001) of patients receiving 5 mg/kg every 8 weeks, 10 mg/kg every 8 weeks, 10 mg/kg every 6 weeks, and 10 mg/kg every 4 weeks, respectively. Dose escalation to 240 mg every other week led to recapture clinical remission in 93.3% (n = 14 of 15). Infliximab serum levels increased after the switch (P < .0001) except for patients receiving 10 mg/kg every 4 weeks. In multivariable analysis, 10 mg/kg every 4 weeks regimen (odds ratio, 12.4; 95% confidence interval, 1.6-98.4; P = .017) and fecal calprotectin >250 μg/g at baseline (odds ratio, 5.4; 95% confidence interval, 1.1-27.6; P = .042) had a higher risk of relapse as well as reduced (41.7%) or stable (36.8%) infliximab serum levels between baseline and visit 1 compared with increased serum levels (12.7%) (P = .020 and P = .019, respectively). Patients' acceptability (10-point scale) was improved by the switch (6.9 ± 1.6 vs 8.6 ± 1.4; P < .0001). No severe adverse event was reported. CONCLUSIONS Switching from intravenous to subcutaneous infliximab 120 mg every other week is safe and well accepted, leading to a low risk of relapse in IBD patients except for those receiving 10 mg/kg every 4 weeks requiring 240 mg every other week.
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Affiliation(s)
- Anthony Buisson
- Service d'Hépato-Gastro Entérologie, 3iHP, INSERM, Centre Hospitalier Universitaire de Clermont-Ferrand, Université Clermont Auvergne, Clermont-Ferrand, France; M2iSH, USC-INRA 2018, INSERM U1071, 3iHP, Université Clermont Auvergne, Clermont-Ferrand, France.
| | - Maria Nachury
- INSERM U1286 - INFINITE - Institute for Translational Research in Inflammation, Centre Hospitalier Universitaire de Lille, Université de Lille, Lille, France
| | - Maud Reymond
- Service d'Hépato-Gastro Entérologie, 3iHP, INSERM, Centre Hospitalier Universitaire de Clermont-Ferrand, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Clara Yzet
- Unité Peritox, Centre Hospitalier Universitaire de Amiens, Université de Picardie Jules Verne, Amiens, France
| | - Pauline Wils
- INSERM U1286 - INFINITE - Institute for Translational Research in Inflammation, Centre Hospitalier Universitaire de Lille, Université de Lille, Lille, France
| | - Laure Payen
- Service d'Hépato-Gastro Entérologie, 3iHP, INSERM, Centre Hospitalier Universitaire de Clermont-Ferrand, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Marie Laugie
- Service d'Hépato-Gastro Entérologie, 3iHP, INSERM, Centre Hospitalier Universitaire de Clermont-Ferrand, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Luc Manlay
- Service d'Hépato-Gastro Entérologie, 3iHP, INSERM, Centre Hospitalier Universitaire de Clermont-Ferrand, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Nicolas Mathieu
- Department of Hepato-Gastroenterology and Digestive Oncology, Grenoble Alpes University Hospital, Grenoble, France
| | - Bruno Pereira
- Unité de Biostatistiques, Direction de la Recherche Clinique et de l'Innovation, Centre Hospitalier Universitaire de Clermont-Ferrand, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Mathurin Fumery
- Unité Peritox, Centre Hospitalier Universitaire de Amiens, Université de Picardie Jules Verne, Amiens, France
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