The PCDAI is an instrument that was developed and validated for numerical assessment of disease activity in children and adolescents with CD. The PCDAI consists of the following 11 variables: Abdominal pain, stools per day, wellbeing, weight, height velocity, abdominal tenderness, peri-rectal disease, extra-intestinal manifestation, hematocrit, erythrocyte sedimentation rate and albumin. The category of severity for each index item is assigned a score: 0=normal;5=mild abnormality; 10= severe abnormality. For hematocrit and erythrocyte SR, the maximum score =5. For albumin level, the maximum score = 10. The PCDAI score is average of 11 variables scoring range of 0 to 100. Mild disease corresponds to scores of 11 to 30; moderate to severe disease corresponds to scores > 30. Remission (no disease activity) is defined as a PCDAI score < 10.

Data was not collected as no participants completed Week 64 visit.

SES-CD assesses the degree of inflammation on the basis of 4 components: size of ulcers, ulcerated surface, affected surface, and presence of narrowing. Each of these 4 components are assessed in the five segments of the ileum and colon: ileum, right colon, transverse colon, left (descending and sigmoid) colon, and rectum, and is scored on a scale of severity 0 (Normal) to 3 (High). Sub-scores for each segment will be derived by adding component scores within segments. Total SES-CD score is the sum of the sub-scores across the five segments. The sum of each component across all segments ranges from 0 to 15, except for the presence of narrowing where it varies from 0 to 11. The range of the overall SES-CD score is 0-56, with larger scores indicating greater severity of disease.

Data was not collected as no participants completed Week 64 visit.

The PCDAI is an instrument that was developed and validated for numerical assessment of disease activity in children and adolescents with CD. The PCDAI consists of the following 11 variables: Abdominal pain, stools per day, wellbeing, weight, height velocity, abdominal tenderness, peri-rectal disease, extra-intestinal manifestation, hematocrit, erythrocyte sedimentation rate and albumin. The category of severity for each index item is assigned a score: 0=normal;5=mild abnormality; 10= severe abnormality. For hematocrit and erythrocyte SR, the maximum score =5. For albumin level, the maximum score = 10. The PCDAI score is average of 11 variables scoring range of 0 to 100. Mild disease corresponds to scores of 11 to 30; moderate to severe disease corresponds to scores > 30. Remission (no disease activity) is defined as a PCDAI score < 10.

The Intent to Treat population consist of all randomized participants that receive at least 1 dose of investigational drug. Participants who completed Week 12 visit were only included in the analysis. No participants in Ozanimod 0.46 mg arm completed Week 12 visit.

SES-CD assesses the degree of inflammation on the basis of 4 components: size of ulcers, ulcerated surface, affected surface, and presence of narrowing. Each of these 4 components are assessed in the five segments of the ileum and colon: ileum, right colon, transverse colon, left (descending and sigmoid) colon, and rectum, and is scored on a scale of severity 0 (Normal) to 3 (High). Sub-scores for each segment will be derived by adding component scores within segments. Total SES-CD score is the sum of the sub-scores across the five segments. The sum of each component across all segments ranges from 0 to 15, except for the presence of narrowing where it varies from 0 to 11. The range of the overall SES-CD score is 0-56, with larger scores indicating greater severity of disease.

Data was not collected as no participants completed Week 64 visit.

SES-CD assesses the degree of inflammation on the basis of 4 components: size of ulcers, ulcerated surface, affected surface, and presence of narrowing. Each of these 4 components are assessed in the five segments of the ileum and colon: ileum, right colon, transverse colon, left (descending and sigmoid) colon, and rectum, and is scored on a scale of severity 0 (Normal) to 3 (High). Sub-scores for each segment will be derived by adding component scores within segments. Total SES-CD score is the sum of the sub-scores across the five segments. The sum of each component across all segments ranges from 0 to 15, except for the presence of narrowing where it varies from 0 to 11. The range of the overall SES-CD score is 0-56, with larger scores indicating greater severity of disease.

The Intent to Treat population consist of all randomized participants that receive at least 1 dose of investigational drug. Only participants who completed week 12 visit are included in the analysis. No participants in Ozanimod 0.46 mg arm completed Week 12 visit.

The PCDAI is an instrument that was developed and validated for numerical assessment of disease activity in children and adolescents with CD. The PCDAI consists of the following 11 variables: Abdominal pain, stools per day, wellbeing, weight, height velocity, abdominal tenderness, peri-rectal disease, extra-intestinal manifestation, hematocrit, erythrocyte sedimentation rate and albumin. The category of severity for each index item is assigned a score: 0=normal;5=mild abnormality; 10= severe abnormality. For hematocrit and erythrocyte SR, the maximum score =5. For albumin level, the maximum score = 10. The PCDAI score is average of 11 variables scoring range of 0 to 100. Mild disease corresponds to scores of 11 to 30; moderate to severe disease corresponds to scores > 30. Remission (no disease activity) is defined as a PCDAI score < 10.

Data was not collected as no participants completed Week 64 visit.

The PCDAI is an instrument that was developed and validated for numerical assessment of disease activity in children and adolescents with CD. The PCDAI consists of the following 11 variables: Abdominal pain, stools per day, wellbeing, weight, height velocity, abdominal tenderness, peri-rectal disease, extra-intestinal manifestation, hematocrit, erythrocyte sedimentation rate and albumin. The category of severity for each index item is assigned a score: 0=normal;5=mild abnormality; 10= severe abnormality. For hematocrit and erythrocyte SR, the maximum score =5. For albumin level, the maximum score = 10. The PCDAI score is average of 11 variables scoring range of 0 to 100. Mild disease corresponds to scores of 11 to 30; moderate to severe disease corresponds to scores > 30. Remission (no disease activity) is defined as a PCDAI score < 10.

The Intent to Treat population consist of all randomized participants that receive at least 1 dose of investigational drug. Participants who completed Week 12 visit were only included in the analysis. No participants in Ozanimod 0.46 mg arm completed Week 12 visit.

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 Intent to Treat population consist of all randomized participants that receive at least 1 dose of investigational drug. Participants who completed Week 12 visit were only included in the analysis. No participants in Ozanimod 0.46 mg arm completed Week 12 visit.

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.

Data was not collected as no participants in the study completed Week 64 visit.

SF was defined number of liquid or soft stools per day.

Data was not collected as no participants completed Week 64 visit. Pre-specified to assess change at Week 64.

Participants entered Reponses in diaries daily. The 7 days entries prior to visit were considered for calculating average AP score. The AP score was graded on severity of 0 (none) to 3 (severe) scale.

Data was not collected as no participants completed Week 64 visit. Pre-specified to assess change at Week 64.

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.

The Intent to Treat population consist of all randomized participants that receive at least 1 dose of investigational drug. Participants who completed week 12 visit were included in the analysis. No participants in Ozanimod 0.46 mg arm completed Week 12 visit.

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.

Data was not collected as no participants completed Week 64 visit.

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.

Data was not collected as no participants completed Week 64 visit.

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.

The Intent to Treat population consist of all randomized participants that receive at least 1 dose of investigational drug. Participants who completed week 12 visit were included in the analysis. No participants in Ozanimod 0.46 mg arm completed Week 12 visit.

The PCDAI is an instrument that was developed and validated for numerical assessment of disease activity in children and adolescents with CD. The PCDAI consists of the following 11 variables: Abdominal pain, stools per day, wellbeing, weight, height velocity, abdominal tenderness, peri-rectal disease, extra-intestinal manifestation, hematocrit, erythrocyte sedimentation rate and albumin. The category of severity for each index item is assigned a score: 0=normal;5=mild abnormality; 10= severe abnormality. For hematocrit and erythrocyte SR, the maximum score =5. For albumin level, the maximum score = 10. The PCDAI score is average of 11 variables scoring range of 0 to 100. Mild disease corresponds to scores of 11 to 30; moderate to severe disease corresponds to scores > 30. Remission (no disease activity) is defined as a PCDAI score < 10.

Data was not collected as no participants completed Week 64 visit.

The PCDAI is an instrument that was developed and validated for numerical assessment of disease activity in children and adolescents with CD. The PCDAI consists of the following 11 variables: Abdominal pain, stools per day, wellbeing, weight, height velocity, abdominal tenderness, peri-rectal disease, extra-intestinal manifestation, hematocrit, erythrocyte sedimentation rate and albumin. The category of severity for each index item is assigned a score: 0=normal;5=mild abnormality; 10= severe abnormality. For hematocrit and erythrocyte SR, the maximum score =5. For albumin level, the maximum score = 10. The PCDAI score is average of 11 variables scoring range of 0 to 100. Mild disease corresponds to scores of 11 to 30; moderate to severe disease corresponds to scores > 30. Remission (no disease activity) is defined as a PCDAI score < 10.

Data was not collected as no participants completed Week 64 visit.

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.

Data was not collected as no participants completed Week 64 visit.

SES-CD assesses the degree of inflammation on the basis of 4 components: size of ulcers, ulcerated surface, affected surface, and presence of narrowing. Each of these 4 components are assessed in the five segments of the ileum and colon: ileum, right colon, transverse colon, left (descending and sigmoid) colon, and rectum, and is scored on a scale of severity 0 (Normal) to 3 (High). Sub-scores for each segment will be derived by adding component scores within segments. Total SES-CD score is the sum of the sub-scores across the five segments. The sum of each component across all segments ranges from 0 to 15, except for the presence of narrowing where it varies from 0 to 11. The range of the overall SES-CD score is 0-56, with larger scores indicating greater severity of disease.

The Intent to Treat population consist of all randomized participants that receive at least 1 dose of investigational drug. Participants who completed week 12 visit were included in the analysis. No participants in Ozanimod 0.46 mg arm completed Week 12 visit.

Blood samples were collected to assess steady state exposure of ozanimod.

Data was not collected as no participants completed Week 64 visit.

Blood samples were collected to assess lymphocyte count.

The Intent to Treat population consist of all randomized participants that receive at least 1 dose of investigational drug. Participants who completed Week 12 visit were only considered in the analysis. No participants in Ozanimod 0.46 mg arm completed Week 12 visit.

Blood samples were collected to assess lymphocyte count.

Data was not collected as no participants completed Week 64 visit.

An Adverse Event (AE) is defined as any new untoward medical occurrence or worsening of a preexisting medical condition in a clinical investigation participant administered study treatment and that does not necessarily have a causal relationship with this treatment. Serious Adverse Events (SAEs) is any untoward medical occurrence that, at any dose: results in death; is life-threatening; requires inpatient hospitalization; results significant disability; or is a congenital anomaly/birth defect.

The Intent to Treat population consist of all randomized participants that receive at least 1 dose of investigational drug.