 3. Has a diagnosis of moderately to severely active Crohns disease CD at least 3 months prior to enrollment, with a Crohns Disease Activity Index CDAI score of 220-450 during the Screening Period, a simple endoscopic score for Crohns Disease SES-CD score of 7 and presence of at least one mucosal ulceration documented by recorded ileocolonoscopy at Screening assessed by the central reader. 