 CDAI is a recognized scoring system to categorize disease severity with scores of >= 000 to <= 000 describing the moderately-to-severely active population. The score was algorithmically derived from the sum of participant reported Crohn's disease symptoms recorded over 0 days and investigator recorded assessments of the participant's condition, laboratory parameters and use of anti-diarrhoeal medication. Both participants and investigators made their entries via IVRS each evening before going to bed. Percentage of participants with CDAI decrease from baseline of >=