A Study Testing How BI 655130 Works in Patients With Fistulizing Crohn's Disease

Spesolimab 1200 milligram intravenously every 4 weeks (week 0, 4, 8, 12, 16 and 20). At week 12 Placebo patients without combined perianal fistula remission were switched to spesolimab and were treated with spesolimab 1200 milligram intravenously every 4 weeks (week 12, 16 and 20).

Placebo intravenously every 4 weeks (week 0, 4, 8). At week 12 achievement of combined perianal fistula remission was determined, patients without combined perianal fistula remission were switched to spesolimab and were treated with spesolimab 1200 milligram intravenously every 4 weeks (week 12, 16 and 20). Patients with combined perianal fistula remission remained on Placebo and were treated with placebo intravenously every 4 weeks (week 12, 16 and 20).