A Phase 3, Multicenter, Open-Label Extension Study to Evaluate the Long-Term Efficacy and Safety of Mirikizumab in Patients with Moderately to Severely Active Ulcerative Colitis

This study is being done to help answer the following research questions: (a) How mirikizumab, an investigational drug, could help people with ulcerative colitis over time; (b) How safe long-term use of mirikizumab is; and (c) To monitor any possible side effects of long-term use of mirikizumab.