Budesonide

The primary efficacy endpoint is clinical remission at 8 weeks, defined as a Ulcerative Colitis Disease Activity Index score of \< or = 1 with a score of 0 for both rectal bleeding and stool frequency, and \> or = 1 point reduction from baseline in endoscopy score, without any sign of mucosal friability (a score of 0 for mucosal appearance). The UCDAI has 4 components. Each component is scored on scale of 0 to 3 (total maximum \[worst\] score = 12). Definitions of component scores are as follows: stool frequency: 0 = normal frequency, 1 = 1 - 2 stools per day greater than normal frequency, 2 = 3 - 4 stools per day greater than normal frequency, and 3 = \> 4 stools per day greater than normal frequency; rectal bleeding: 0 = none, 1 = streaks of blood, 2 = obvious blood, 3 = mostly blood; physician's rating of disease activity: 0 = normal, 1 = mild, 2 = moderate, 3 = severe; mucosal appearance: 0 = normal, 1 = mild friability, 2 = moderate friability, 3 = exudation, spontaneous bleeding.

Remission was a combined assessment of clinical and endoscopic variables, defined as an endoscopy score of less than or equal to (\<=) 1, a rectal bleeding score of 0, and an improvement or no change from baseline in stool frequency subscales of the Modified Mayo Disease Activity Index (MMDAI) at the end of 6 weeks of treatment. MMDAI was used to assess the overall disease activity for each participant. MMDAI evaluated 4 indices: stool frequency, rectal bleeding, physician's global assessment (PGA) and endoscopy findings each on a scale of 0 to 3 with a maximum total score of 12. Stool frequency MMDAI subscore ranged from 0-3, where 0 indicated normal number of stools per day and 3 indicated 5 or more stools than normal. Rectal bleeding MMDAI subscore ranged from 0-3, where 0 indicated no blood seen and 3 indicated blood alone passed. Endoscopy MMDAI subscore ranged from 0-3, where 0 indicated normal or inactive disease and 3 indicated severe disease (spontaneous bleeding, ulceration).