A Study on the Safety of TAK-279 and Whether it Can Reduce Inflammation in the Bowel of Participants With Moderately to Severely Active Crohn's Disease

Inclusion Criteria: 1. Male or female aged 18-75 years old with diagnosis of CD for at least 30 days. In South Korea, the age requirement for adult participants is \>=19 years of age. 2. Confirmed diagnosis of moderately to severely active CD assessed by SES-CD and CDAI. 3. Participants must have had an inadequate response to, loss of response to, or intolerance to at least one or more conventional, biologic, or advanced therapy for CD. Exclusion Criteria: 1. Participants with indeterminate colitis, microscopic colitis, ischemic colitis, infectious colitis, radiation colitis, and diverticular disease associated with colitis, and/or ulcerative colitis. 2. Have complications of CD that might require surgery during the study. 3. Participants with a current ostomy. 4. Participants who have failed 3 or more classes of advanced therapies.