Clinical outcome of newly diagnosed Crohn’s disease: a comparative, retrospective study before and after infliximab availability

Summary Background Infliximab (IFX) could change the course of Crohn’s disease (CD) by reducing steroid use, surgery or prompting earlier introduction of immunomodulators (IMM). Aim To evaluate the impact of IFX availability on the course of early CD. Methods Two cohorts of newly diagnosed CD patients were identified: The first cohort included patients diagnosed from January 1994 to December 1997 and the second from January 2000 to December 2003. All patients were diagnosed, treated and followed up in the same centre until December 1999 (first cohort) or December 2005 (second cohort). Development of disease‐related complications, steroid, IMM or IFX requirements and intestinal resections during follow‐up were registered. Results A total of 328 patients were included (146 first cohort, 182 second cohort). A similar proportion of patients in both cohorts received steroids, but steroid exposure resulted significantly more intense in the first cohort (P = 0.001). In the second cohort, 14% of patients received IFX. Thiopurines were used more (P = 0.001) and earlier (P = 0.012) in the second cohort. No differences in surgical requirements or the development of disease‐related complications were found. Conclusions Following a step‐up therapeutic algorithm, IFX availability did not reduce surgical requirements or the development of disease‐related complications. Aliment Pharmacol Ther 31, 233–239