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Efficacy and Safety of Adalimumab After Infliximab Failure in Pediatric Crohn Disease

Abstract : OBJECTIVES: The objective of the present study was to evaluate the effectiveness and safety of adalimumab (ADA) in children with Crohn disease (CD) who experienced infliximab (IFX) failure at the population level. METHODS: The present retrospective study included all of the children with CD from a pediatric-onset population-based cohort who received ADA before 18 years because of IFX failure or intolerance. Efficacy of ADA was evaluated using the physician's global assessment score, C-reactive protein and orosomucoid, and nutritional and growth indicators. RESULTS: A total of 27 children with CD received ADA. Median age at CD diagnosis and at ADA initiation was 11 years (Q1 = 9; Q3 = 12) and 15 years (12; 15), respectively. After a median follow-up of 16 (8; 26) months after ADA initiation, ADA had clinical benefit as measured by the physical global assessment score in 19 patients (70%). Cumulative probability of failure to ADA treatment was 38% at 6 months and 55% at 1 year. Eight patients had a primary failure (30%) and 5 of 19 (26%) a secondary failure to ADA. Furthermore, 11 patients (40%) experienced a total of 19 adverse effects. No serious adverse effects were observed and none resulted in ADA discontinuation. There was no significant change in growth and nutritional patterns during the study period, but we found a significant decrease in median C-reactive protein (15 mg/L [4; 44] vs 9 mg/L [3; 19]; P = 0.05) and orosomucoid (1.6 g/L [1.5; 2.6] vs 1.1 g/L [0.8; 1.9]; P = 0.001) from ADA initiation to maximal follow-up in patients responding to ADA. CONCLUSIONS: In the present population-based cohort of pediatric-onset CD with IFX failure, treatment with ADA was safe and effective in two-thirds of patients.
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Submitted on : Wednesday, December 20, 2017 - 4:19:29 PM
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Mathurin Fumery, Anne Jacob, Hélène Sarter, Laurent Michaud, Claire Spyckerelle, et al.. Efficacy and Safety of Adalimumab After Infliximab Failure in Pediatric Crohn Disease. Journal of Pediatric Gastroenterology and Nutrition, Lippincott, Williams & Wilkins, 2015, 60 (6), pp.744 - 748. ⟨10.1097/MPG.0000000000000713⟩. ⟨hal-01669218⟩



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