Journal
BIOLOGICALS
Volume 47, Issue -, Pages 81-85Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.biologicals.2017.03.002
Keywords
Exit strategy; TSL (trough serum level); Infliximab
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Funding
- Registered Society for Science and Education in the ambulant Internal Medicine
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Background and aims: The aim of the study was to evaluate, if the strategy to stop anti-TNF treatment after determination of low trough serum levels and exclusion of inflammation is associated with lower relapse rates. Methods: Since 2013 we followed an exit strategy in patients treated with anti-TNF treatment for inflammatory bowel disease based on trough serum levels. The relapse rates were observed prospectively, data analysis was performed in a retrospective manner of the collected clinical data. Results: Forty patients were enrolled, who stopped anti-TNF therapy. 13 Patients followed the clinical algorithm, 27 patients were used as control group (13 patients with ulcerative colitis and 14 patients with Crohn's disease). 19 patients received Infliximab, 21 Adalimumab. The median follow-up time after discontinuation was 19 months (IQR 18). Relapses were observed in 22/40 patients (55%). Among the 13 patients with a targeted discontinuation of therapy based on the algorithm, three relapses were observed (23%), compared to 19/27 (70%) from the non-algorithm group (OR: 7.9; 95%-CI: 1.7-36.5). Relapse-free survival after anti-TNF discontinuation was significantly higher in patients treated by the algorithm compared to the non-algorithm group (p = 0.032). Conclusion: An exit strategy based on trough serum levels significantly reduces the relapse rate. (C) 2017 International Alliance for Biological Standardization. Published by Elsevier Ltd. All rights reserved.
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