T. Molnar and P. L. Lakatos contributed equally.
Predictors of relapse in patients with Crohn's disease in remission after 1 year of biological therapy
Article first published online: 26 NOV 2012
© 2012 Blackwell Publishing Ltd
Alimentary Pharmacology & Therapeutics
Volume 37, Issue 2, pages 225–233, January 2013
How to Cite
Molnár, T., Lakatos, P. L., Farkas, K., Nagy, F., Szepes, Z., Miheller, P., Horváth, G., Papp, M., Palatka, K., Nyári, T., Bálint, A., Lőrinczy, K. and Wittmann, T. (2013), Predictors of relapse in patients with Crohn's disease in remission after 1 year of biological therapy. Alimentary Pharmacology & Therapeutics, 37: 225–233. doi: 10.1111/apt.12160
- Issue published online: 17 DEC 2012
- Article first published online: 26 NOV 2012
- Manuscript Accepted: 3 NOV 2012
- Manuscript Revised: 28 OCT 2012
- Manuscript Revised: 24 JUN 2012
- Manuscript Received: 8 JUN 2012
- TAMOP. Grant Number: 4.2.1/B-09/1/KONV-2010-0005
Some of the most important questions relating to the use of biological therapy in inflammatory bowel diseases concern the duration of maintenance therapy.
To assess the disease course and frequency of relapse of Crohn's disease (CD) following discontinuation of biological therapy, and to determine predictive factors for relapse.
One hundred twenty-one CD patients who had achieved clinical remission following 1 year of biological therapy and for whom biological therapy was then discontinued participated in this prospective observational study. Eighty-seven CD patients had received infliximab and 34 adalimumab. The definition of relapse was an increase of >100 points in CDAI to at least a CDAI of 150 points.
Biological therapy was restarted within 1 year of treatment cessation in 45% of patients. Logistic regression analysis revealed that previous biological therapy (P = 0.011) and dose intensification during the 1-year course of biological therapy (P = 0.024) were associated with the need for and the time to the restarting of biological therapy. Smoking was observed to have an effect that was not statistically significant (P = 0.053).
Biological therapy was restarted a median of 6 months after discontinuation in almost half of Crohn's disease patients in who had been in clinical remission following 1 year of biological therapy. These results suggest that, in the event of the presence of certain predictive factors, biological therapy should probably be continued for more than 1 year by most patients.