Higher infliximab trough levels are associated with perianal fistula healing in patients with Crohn's disease

Infliximab has been found to be efficacious in the treatment of fistulas in the setting of Crohn's disease, even though some patients do not benefit from therapy.To assess the correlation between perianal fistula healing and trough levels of infliximab.In this cross-sectional study, we identified patients with Crohn's disease who had perianal fistulas and were treated with infliximab for at least 24 weeks. We excluded patients who underwent a...