Journal
ALIMENTARY PHARMACOLOGY & THERAPEUTICS
Volume 28, Issue 2, Pages 221-227Publisher
WILEY
DOI: 10.1111/j.1365-2036.2008.03734.x
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Background Little is known about long-term outcomes in patients who experience infusion reactions while receiving infliximab. Aim To investigate long-term outcomes in patients who experience infusion reactions while receiving infliximab. Methods Retrospective electronic chart review of long-term clinical outcomes. Results Clinical data on 287 patients who received infliximab infusions for Crohn's disease were reviewed, of whom 51 developed at least one infusion reaction (18%). Ileo-colonic disease (OR 2.2, 95% CI 1.1-4.4) and episodic infliximab (OR 2.4, 95% CI 1.2-4.7) were associated with a higher risk of infusion reactions in univariate analysis, but concomitant azathioprine/mercaptopurine therapy at the initiation of infliximab was associated with a reduced risk (OR 0.4, 95% CI 0.2-0.8). Only the effect of concomitant immunomodulators persisted on multivariate analysis. Patients who experienced infusion reactions were less likely to be in remission at 1 year (OR 0.6, 95% CI 0.3-1.2), 2 years (OR 0.4, 95% CI 0.2-0.8, P = 0.01), or 5 years (OR 0.4, 95% CI 0.1-1.3) and more likely to require surgery (OR 2.2, 95% CI 1.1-4.1, P = 0.01) than those who did not experience such reactions. Conclusions Patients who experienced infusion reactions to infliximab had a high rate of discontinuation of therapy in this cohort. Concomitant immunomodulators and maintenance therapy reduced the risk of infusion reactions.
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