Ixekizumab Associated New-Onset Inflammatory Bowel Disease

Abstract

Ixekizumab is a monoclonal antibody targeting interleukin-17 approved for the treatment of psoriasis. In a recent post hoc meta-analysis of Phase-I to Phase-III clinical trials of anti-interleukin-17 agents for the treatment of plaque psoriasis, there was a rare association (<1%) with induction or exacerbation of inflammatory bowel disease. We report a case of new-onset ileal Crohn's disease in a 48-year-old woman on ixekizumab for psoriasis.