Induction Study #2 of Oral Ozanimod as Induction Therapy for Moderately to Severely Active Crohn's Disease

The CDAI is a composite score that is used to measure the clinical activity of Crohn's disease (CD). The CDAI uses a questionnaire with 8 disease activity variables: number of soft/liquid stools, severity of abdominal pain, general well-being, presence of complications, need for antidiarrheal drugs, presence of an abdominal mass, hematocrit, and deviation in body weight. The sub scores of number of soft/liquid stool, severity of abdominal pain (0 [none] to 3 [Severe]), general well-being (0 [well] to 4 [terrible] were summed over the 7 days prior to each visit. Additionally, the remaining predictors were also noted and weighted to create the total CDAI score which ranged from 0-600 with a higher score indicating a worse outcome.

Abdominal pain and stool frequency clinical remission was defined as average daily abdominal pain score ≤ 1 point, and average daily stool frequency ≤ 3 with abdominal pain and stool frequency no worse than baseline at Week 12. Participants entered the responses in diaries daily. The 7 days entries prior to Week 12 visit were considered for calculating average abdominal pain score and stool frequency. The abdominal pain was graded on severity of 0 (none) to 3 (severe) scale and stool frequency was defined number of liquid or soft stools per day. Baseline was defined as the last assessment prior to the start time of the first drug administration if time of measurement is available else the last assessment prior to or on the date of the first drug administration.

The SES-CD assessed the degree of inflammation. The SES-CD assesses the following 4 components: size of ulcers, ulcerated surface, affected surface, and presence of narrowing. Each of these components was scored on a scale of 0 (none/unaffected) to 3 (worst). In the SES-CD, each of these 4 components are assessed in the five segments: ileum, right colon, transverse colon, left colon, and rectum. The SES-CD was the sum of the individual scores of each of the components across the five segments. The range of SES-CD scores was 0 - 12 for each segment, and 0 - 60 for the overall SES-CD score, with larger scores indicating greater degree of inflammation. Baseline was defined as the last assessment prior to the start time of the first drug administration if time of measurement is available else the last assessment prior to or on the date of the first drug administration.

The CDAI is a composite score that is used to measure the clinical activity of Crohn's disease (CD). The CDAI uses a questionnaire with 8 disease activity variables: number of soft/liquid stools, severity of abdominal pain, general well-being, presence of complications, need for antidiarrheal drugs, presence of an abdominal mass, hematocrit, and deviation in body weight. The sub scores of number of soft/liquid stool, severity of abdominal pain (0 [none] to 3 [Severe]), general well-being (0 [well] to 4 [terrible] were summed over the 7 days prior to each visit. Additionally, the remaining predictors were also noted and weighted to create the total CDAI score which ranged from 0-600 with a higher score indicating a worse outcome. Baseline was defined as the last assessment prior to the start time of the first drug administration if time of measurement is available else the last assessment prior to or on the date of the first drug administration.

CDAI include 8 components number of soft/liquid stools, severity of abdominal pain, wellbeing, complications, need antidiarrheal drugs, abdominal mass, hematocrit, deviation in body wt. Subscores of numbers of soft/liquid stool, severity of abdominal pain (0 [none] to 3 [Severe]), general well-being (0 [well] to 4 [terrible] were summed over the 7 days prior to visit. The others weighted to create the total CDAI score ranging 0-600 with higher score indicating worse outcome. The SES-CD has 4 components size of ulcers, ulcerated surface, affected surface, presence of narrowing. Each component was scored on scale of 0 (none) to 3 (worst). In SES-CD, each of 4 components are assessed in the five segments: ileum, right, transverse, left colon, and rectum. The SES-CD was the sum of the individual scores of each of the components across the five segments. The range of SES-CD scores was 0 - 12 for each segment, and 0 - 60 for overall, with larger scores show greater degree of inflammation.

CDAI include 8 components number of soft/liquid stools, severity of abdominal pain, wellbeing, complications, need antidiarrheal drugs, abdominal mass, hematocrit, deviation in body wt. Subscores of numbers of soft/liquid stool, severity of abdominal pain (0 [none] to 3 [Severe]), general well-being (0 [well] to 4 [terrible] were summed over the 7 days prior to visit. The others weighted to create the total CDAI score ranging 0-600 with higher score indicating worse outcome. The SES-CD has 4 components size of ulcers, ulcerated surface, affected surface, presence of narrowing. Each component was scored on scale of 0 (none) to 3 (worst). In SES-CD, each of 4 components are assessed in the five segments: ileum, right, transverse, left colon, and rectum. The SES-CD was the sum of the individual scores of each of the components across the five segments. The range of SES-CD scores was 0 - 12 for each segment, and 0 - 60 for overall, with larger scores show greater degree of inflammation.

Abdominal pain (AP) and stool frequency (SF) clinical remission was defined as average daily abdominal pain score ≤ 1 point, and average daily stool frequency ≤ 3 times with AP and SF no worse than baseline at Week 12. Participants entered responses in diaries daily. The 7 days entries prior to visit were considered for calculating average AP score and SF. The AP was graded on severity of 0 (none) to 3 (severe) scale and SF was defined number of liquid or soft stools per day. The SES-CD has 4 components size of ulcers, ulcerated surface, affected surface, presence of narrowing. Each component was scored on scale of 0 (none) to 3 (worst). In SES-CD, each of 4 components are assessed in the five segments: ileum, right, transverse, left colon, and rectum. The SES-CD was the sum of the individual scores of each of the components across the five segments. The range of SES-CD scores was 0 - 12 for each segment, and 0 - 60 for overall, with larger scores show greater degree of inflammation.

GHAS assesses the inflammation and mucosal damage. GHAS has 8 components Epithelial damage, Architectural changes, Infiltration of mononuclear cells in the lamina propria, Infiltration of polymorphonuclear cells in the lamina propria, Polymorphonuclear cells in epithelium, Presence of erosion and/or ulcers, Presence of granuloma and number of biopsy specimens affected. Each of these components was scored on a scale of 0 (none/unaffected) to 2 (worst). Each of these 8 components are assessed in the five segments: ileum, right colon, transverse colon, left colon, and rectum. Within each segment, the GHAS score has a range of 0 - 16, and the total GHAS score has a range of 0 - 80. Higher numbers correspond to more inflammation and more mucosal damage. Baseline was defined as the last assessment prior to the start time of the first drug administration if time of measurement is available else the last assessment prior to or on the date of the first drug administration.

The CDAI is a composite score that is used to measure the clinical activity of Crohn's disease (CD). The CDAI uses a questionnaire with 8 disease activity variables: number of soft/liquid stools, severity of abdominal pain, general well-being, presence of complications, need for antidiarrheal drugs, presence of an abdominal mass, hematocrit, and deviation in body weight. The sub scores of number of soft/liquid stool, severity of abdominal pain (0 [none] to 3 [Severe]), general well-being (0 [well] to 4 [terrible] were summed over the 7 days prior to each visit. Additionally, the remaining predictors were also noted and weighted to create the total CDAI score which ranged from 0-600 with a higher score indicating a worse outcome. Baseline was defined as the last assessment prior to the start time of the first drug administration if time of measurement is available else the last assessment prior to or on the date of the first drug administration.

The ulcerated surface were assessed via endoscopy.

CDEIS is an index for determining the severity of Crohn's disease with endoscopic localization to ileum and colon. The CDEIS divides the intestine into 5 segments: rectum, sigmoid and left colon, transverse colon, right colon, and ileum. Four variables are assessed in each segment: the presence of deep ulceration, the presence of superficial ulceration, the percentage of ulcerated surface, and the percentage of surface affected by CD, indicated on 10-cm visual analogue scales. In addition, the presence of ulcerated stenosis and the presence of nonulcerated stenosis are also assessed over the entire intestine. These factors are weighted and summed to calculate the total score ranging from 0- 44, with higher scores indicating more severe disease.

AP and SF clinical remission is average daily abdominal pain score ≤ 1 point, and average daily stool frequency ≤ 3 times with AP and SF no worse than baseline at Week 12. Participants entered responses in diaries daily. The 7 days entries prior to visit were considered for calculating average AP score and SF. AP was graded on severity of 0 (none) to 3 (severe) scale and SF was defined number of liquid or soft stools per day. SES-CD has 4 components size of ulcers, ulcerated surface, affected surface, presence of narrowing. Each component was scored on scale of 0 (none) to 3 (worst). Endoscopic Response is defined as >= 50% decrease from baseline in SES-CD. In SES-CD, each of 4 components are assessed in five segments: ileum, right, transverse, left colon, and rectum. The SES-CD was sum of individual scores of each of components across five segments. Range of SES-CD scores was 0 - 12 for each segment, and 0 - 60 for overall, with larger scores show greater degree of inflammation.

RHI mucosal healing was defined as RHI remission combined with SES-CD <= 4 points and a SES-CD decrease from baseline >= 2 points with no SES-CD sub-score >1 point. RHI Remission is defined as no active inflammation in any measured segment. The SES-CD assesses the following 4 components: size of ulcers, ulcerated surface, affected surface, and presence of narrowing. Each of these components was scored on a scale of 0 (none/unaffected) to 3 (worst). In the SES-CD, each of these 4 components are assessed in the five segments: ileum, right colon, transverse colon, left colon, and rectum. The SES-CD was the sum of the individual scores of each of the components across the five segments. The range of SES-CD scores was 0 - 12 for each segment, and 0 - 60 for the overall SES-CD score, with larger scores indicating greater degree of inflammation.