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Clin. Gastroenterol. Hepatol. · Aug 2017
Comparative StudyComparison of Infliximab and Adalimumab in Biologic-Naive Patients With Ulcerative Colitis: A Nationwide Danish Cohort Study.
- Siddharth Singh, Andersen Nynne Nyboe NN Department of Epidemiology Research, Statens Serum Institute, Copenhagen, Denmark., Mikael Andersson, Edward V Loftus, and Tine Jess.
- Division of Gastroenterology, University of California San Diego, La Jolla, California. Electronic address: sis040@ucsd.edu.
- Clin. Gastroenterol. Hepatol. 2017 Aug 1; 15 (8): 1218-1225.e7.
Background & AimsThis study compares the effectiveness and safety of infliximab and adalimumab in biologic-naive patients with ulcerative colitis (UC), in a nationwide register-based propensity score-matched cohort study.MethodsFrom 1719 adults with UC, between ages 15 and 75 years in Denmark treated with either infliximab or adalimumab as their first biologic agent, we compared rates of all-cause hospitalization, UC-related hospitalization, major abdominal surgery, and serious infections after a variable 2:1 propensity score matching, accounting for baseline clinical characteristics, disease severity, health care utilization, and use of UC-related medications.ResultsAs compared with infliximab-treated patients, adalimumab-treated patients had higher rate of all-cause hospitalization (hazard ratio [HR], 1.84; 95% CI, 1.18-2.85) and a trend toward higher rate of UC-related hospitalization (HR, 1.71; 95% CI, 0.95-3.07), particularly in a stratum of patients on concomitant immunomodulator therapy. However, risk of abdominal surgery (HR, 1.35; 95% CI, 0.62-2.94) was not different between the 2 treatment groups. Risk of serious infection requiring hospitalization was significantly higher in adalimumab-treated patients (HR, 5.11; 95% CI, 1.20-21.80).ConclusionsIn this nationwide propensity score matched-cohort study of biologic-naive adults with UC, use of adalimumab as first-line biologic over infliximab was associated with higher risk of hospitalization and serious infections, although risk of surgery was not different. In the absence of head-to-head trials, this evidence may assist patients, health care providers, purchasers, and policy makers to make informed decisions that may improve health care in UC.Copyright © 2017 AGA Institute. Published by Elsevier Inc. All rights reserved.
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