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Background Maintenance anti-tumour necrosis factor-α (anti- TNFα) treatment for Crohn's disease is the standard of care for patients with an inadequate response to corticosteroids and immunomodulators. Aim To compare the efficacy and safety of infliximab and adalimumab in clinical practice and assess the value of concomitant immunomodulator therapy. Methods We performed an observational cohort study in consecutive patients with Crohn's disease qualifying for anti- TNF α treatment in Australia and New Zealand between 2007 and 2011. Demographic and clinical data were prospectively recorded to identify independent factors associated with induction and maintenance of response to infliximab or adalimumab, or to either anti- TNF α therapy. Results Three hundred and twenty-seven patients (183 infliximab, 144 adalimumab) successfully applied for treatment. Eighty-nine percent responded in all groups and median maintenance of response was similar for the two agents. Concomitant immunomodulator with infliximab, but not adalimumab, demonstrated a significantly longer response overall ( P = 0.002), and significantly fewer disease and treatment-related complications ( P = 0.017). Corticosteroids at baseline, and/or in the preceding 12 months, were associated with a 9-13 times greater risk of disease flare during maintenance treatment as compared to no corticosteroids ( P < 0.0001). Maintenance of response was similar in the anti- TNF naïve and anti- TNF experienced subgroups. Conclusions In this large, real-life study, we demonstrate infliximab and adalimumab to have similar response characteristics. However, infliximab requires concomitant immunomodulator to achieve optimal maintenance of response comparable to adalimumab monotherapy. The results of this study will assist clinicians in further optimising patient care in their day-to-day clinical practice. [ABSTRACT FROM AUTHOR] more...

Linked Content This article is linked to Doecke and Hartnell et al and Barreiro‐de Acosta and Gisbert papers. To view these articles visit https://doi.org/10.1111/apt.13880 and https://doi.org/10.1111/apt.13929. [ABSTRACT FROM AUTHOR] more...