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Cited by 309

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The temporal evolution of antidrug antibodies in patients with inflammatory bowel disease treated with infliximab

Ungar, Bella, Chowers, Yehuda, Yavzori, Miri, Picard, Orit, Fudim, Ella, Har-Noy, Ofir, Kopylov, Uri, Eliakim, Rami, Ben-Horin, Shomron, on behalf of ABIRISK consortium·2014·Gut

Abstract

Objective: To characterise the temporal evolution of antibodies to infliximab (ATI). Design: Prospective observational study of infliximab-treated patients with inflammatory bowel disease between 2009 and 2012. Interventions: Trough levels of infliximab and ATI were measured before each infusion by anti-λ ELISA. Patients were monitored for disease activity by clinical activity indexes and for dose-intensification or infliximab cessation. The occurrence of transient ATI disappearing spontaneously without intervention was recorded separately. Results: 125 patients were included (98 Crohn's disease, 27 ulcerative colitis, median follow-up 11.5±22 months) and 1119 sera were analysed for infliximab and ATI levels. Kaplan-Meier analysis showed that 42% of patients remained ATI-free by 4 years of treatment. Most (90%) of the patients who developed ATI did so within the first 12 months of therapy, whereas transient ATI were detected throughout the duration of infliximab therapy (p<0.001). ATI incidence was similar between patients who received infliximab previously (episodic/interrupted therapy patients, n=14) and scheduled-therapy patients (n=111). In the scheduled group, combination immunomodulator+infliximab resulted in longer ATI-free survival compared with monotherapy (p=0.003, logrank test). Survival free of clinical loss of response was enjoyed by 51% of patients, and serial measurements showed that ATI development often preceded the onset of clinical flare. Conclusions: When followed prospectively, most patients who develop ATI do so within the first 12 months of therapy. This incidence is reduced by concomitant immunomodulator even in scheduled-therapy patients. In contrast, transient ATI, which are of little clinical significance, can appear haphazardly at any time during treatment. The onset of clinical loss of response may lag behind the appearance of anti-infliximab antibodies.

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Metadata

Authors
Ungar, B., Chowers, Y., Yavzori, M., Picard, O., Fudim, E., Har-Noy, O., Kopylov, U., Eliakim, R., Ben-Horin, S., & on behalf of ABIRISK consortium
Venue
Gut
Publisher
BMJ
Published
2013-09-16
Volume
63
Issue
8
Pages
1258-1264
ISSN
  • 0017-5749 (ISSN-L)
  • 1468-3288
OpenAlex
W2106072130
Cited by
309
References
27
FWCI
18.82
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: The temporal evolution of antidrug antibodies in patients with inflammatory bowel disease treated with infliximab. https://app.cochat.ai/papers/10.1136/gutjnl-2013-305259
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Ungar, B., Chowers, Y., Yavzori, M., Picard, O., Fudim, E., Har-Noy, O., Kopylov, U., Eliakim, R., Ben-Horin, S., & on behalf of ABIRISK consortium. (2014). The temporal evolution of antidrug antibodies in patients with inflammatory bowel disease treated with infliximab. Gut. https://doi.org/10.1136/gutjnl-2013-305259

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