A Phase III, Multicenter, Double-Blind, Placebo-Controlled Study to Assess the Efficacy and Safety of Induction Therapy With RO7790121 in Patients With Moderately to Severely Active Crohn's Disease

Inclusion Criteria: * Confirmed diagnosis of CD * Moderately to severely active CD * Bodyweight \>= 40 kilogram (kg) * Demonstrated inadequate response, loss of response and/or intolerance to at least one protocol-specified conventional or advanced CD therapy * Males and females of childbearing potential must meet protocol criteria for contraception requirements Exclusion Criteria: * Current diagnosis of ulcerative colitis (UC) or indeterminate colitis, ischemic colitis, infectious colitis, radiation colitis, microscopic colitis * Participant with a history of \>= 3 bowel resections (\> 2 m…