CClinicalTrials.gg
TerminatedNCT03440372Updated Nov 4, 2025Results posted

Induction Study #1 of Oral Ozanimod as Induction Therapy for Moderately to Severely Active Crohn's Disease

A Phase 3 interventional study of Ozanimod and Placebo in Crohn Disease, sponsored by Celgene. Terminated at 408 sites in 35 countries. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2025-11-04.

Sponsored by Celgene · Phase 3, Interventional, and Treatment

Why this study was terminated
Business objectives have changed.
Phase
Phase 3
Study type
Interventional
Enrollment
625
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
All
01

Study summary

This is a study to explore the effect of oral ozanimod as an induction treatment for participants with moderately to severely active Crohn's Disease.

02

Conditions studied

  • Crohn Disease

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Keywords

  • Crohn's Disease
  • Crohn Disease
  • Oral
  • Ozanimod
  • Moderately active
  • Severely active
  • RPC01
  • RPC01-3201
03

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Crohn's disease for ≥ 3 months on endoscopy and on histological exam
  • Inadequate response or loss of response to corticosteroids, immunomodulators, and/or biologic therapies
  • Crohn's Disease Activity Index (CDAI) score ≥ 220 and ≤ 450
  • An average daily stool frequency ≥ 4 points and/or an abdominal pain of ≥ 2 points
  • Has Simple Endoscopic Score for Crohn's Disease (SES-CD) score of ≥ 6 (or SES-CD ≥ 4 in participants with isolated ileal disease)

Exclusion criteria

Exclusion Criteria:

  • Has a diagnosis of ulcerative colitis, indeterminate colitis, radiation colitis, or ischemic colitis, or has strictures with prestenotic dilatation requiring procedural intervention
  • Has extensive small bowel resection (>100cm) or known diagnosis of short bowel syndrome, or requires total parenteral nutrition
  • Current stoma, ileal-anal pouch anastomosis, or fistula

Other protocol-defined inclusion/exclusion criteria apply

04

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
625 participants (actual)

Study arms

  • Experimental
    Administration of oral Ozanimod

    Drug: Ozanimod

  • Placebo comparator
    Administration of Placebo

    Other: Placebo

Interventions

  • DrugOzanimod

    Specified dose on specified days

  • OtherPlacebo

    Specified dose on specified days

05

What researchers measure

Primary outcomes

  1. Percent of Participants With a Crohn's Disease Activity Index (CDAI) Score < 150 at Week 12

    Crohn's Disease Activity Index (CDAI) is a composite score used to measure the clinical activity of Crohn's disease. CDAI uses 8 variables: number of soft/liquid stools, severity of abdominal pain (0=none to 3=severe), general well-being (0=well to 4=terrible), presence of complications, need for antidiarrheal drugs, presence of abdominal mass, hematocrit, and change in body weight. Scores for stool number, abdominal pain, and well-being are summed over the 7 days before each visit. The other factors are also recorded and weighted to create a total CDAI score, which ranges from 0-600, with higher scores indicating worse disease (score 150-219 = mild, 220-450 = moderate, \>450 = severe). This measure reports the percentage of participants whose CDAI score was below 150 at 12 weeks.

    Time frame: At Week 12

Secondary outcomes

  1. Percent of Participants With Average Daily Abdominal Pain Score ≤ 1 Point, and Average Daily Stool Frequency Score ≤ 3 Points With Abdominal Pain and Stool Frequency no Worse Than Baseline at Week 12

    Abdominal pain (AP) and stool frequency (SF) clinical remission was defined as an average daily abdominal pain score ≤1 and average daily stool frequency ≤3, with AP and SF no worse than baseline at Week 12. AP was graded on a scale from 0 (none) to 3 (severe), and SF was defined as the number of liquid or soft stools per day. This measure reports the percentage of participants who, by Week 12, had low abdominal pain (score ≤1) and three or fewer bowel movements per day, without worsening symptoms compared to when they started the study. Participants began using the diary at the first visit and continued throughout the study.

    Time frame: At Week 12

  2. Percent of Participants With a Simple Endoscopic Score for Crohn's Disease (SES-CD) Score Decrease From Baseline of ≥ 50% at Week 12

    The Simple Endoscopic Score for Crohn's Disease (SES-CD) is used to assess the degree of inflammation in patients with Crohn's disease. The SES-CD evaluates four components-size of ulcers, ulcerated surface, affected surface, and presence of narrowing-each scored from 0 (none) to 3 (severe): score ranges from 0-12 across four components and 0-60 overall across five segments (ileum, right colon, transverse colon, left colon, rectum). The total higher SES-CD score indicating greater inflammation. Baseline is defined as the last assessment prior to the first drug administration (based on the time of measurement, if available; otherwise, the last assessment prior to or on the date of first drug administration). This measure reports the percentage of participants whose SES-CD score improved by 50% or more from baseline to Week 12.

    Time frame: At Week 12

  3. Percent of Participants With Crohn's Disease Activity Index (CDAI) Reduction From Baseline of ≥ 100 Points or CDAI Score < 150 at Week 12

    The Crohn's Disease Activity Index (CDAI) is a composite score used to measure the clinical activity of Crohn's disease. CDAI is calculated using 8 variables: number of soft/liquid stools, severity of abdominal pain (0 \[none\] to 3 \[severe\]), general well-being (0 \[well\] to 4 \[terrible\]), presence of complications, use of antidiarrheal drugs, presence of an abdominal mass, hematocrit, and deviation in body weight. Scores for stool frequency, pain, and well-being are summed over the 7 days prior to each visit. The remaining variables are also weighted and included in the total CDAI score, which ranges from 0-600, with higher scores indicating worse disease activity (score 150-219 = mild, 220-450 = moderate, \>450 = severe). This measure reports the percentage of participants whose CDAI score improved by at least 100 points, or was below 150, at 12 weeks.

    Time frame: At Week 12

  4. Percent of Participants With Crohn's Disease Activity Index (CDAI) Reduction From Baseline of ≥ 100 Points or CDAI Score < 150 and Simple Endoscopic Score for Crohn's Disease (SES-CD) Decrease From Baseline of ≥ 50% at Week 12

    The Crohn's Disease Activity Index (CDAI) is a composite score used to measure clinical activity in Crohn's disease. CDAI is based on 8 variables: number of soft/liquid stools, severity of abdominal pain (0 \[none\] to 3 \[severe\]), general well-being (0 \[well\] to 4 \[terrible\]), presence of complications, use of antidiarrheal drugs, abdominal mass, hematocrit, and deviation in body weight. Scores for stool frequency, pain, and well-being are summed over 7 days prior to each visit. The total CDAI score ranges from 0-600, with higher scores indicating worse disease activity (score 150-219 = mild, 220-450 = moderate, \>450 = severe). This measure reports the percentage of participants whose Crohn's disease improved at 12 weeks, defined as a CDAI decrease of at least 100 points or a score below 150, along with at least a 50% reduction in intestinal inflammation (SES-CD score).

    Time frame: At Week 12

  5. Percent of Participants With Crohn's Disease Activity Index (CDAI) Score < 150 at Week 12 and Simple Endoscopic Score for Crohn's Disease (SES-CD) Decrease From Baseline of ≥ 50% at Week 12

    This endpoint measured the percentage of participants who achieved both clinical remission and significant endoscopic improvement at Week 12. Clinical remission was defined as a Crohn's Disease Activity Index (CDAI) score of less than 150 at Week 12. Endoscopic improvement was defined as a decrease of at least 50% from baseline in the Simple Endoscopic Score for Crohn's Disease (SES-CD) at Week 12. The CDAI was a composite score assessing disease activity based on symptoms and laboratory values, while the SES-CD evaluated endoscopic findings in the intestinal mucosa. Achieving both criteria indicated substantial improvement in both symptoms and intestinal inflammation.

    Time frame: At Week 12

  6. Percent of Participants With an Average Daily Abdominal Pain Score ≤ 1 Point, and Average Daily Stool Frequency Score ≤ 3 Points With Abdominal Pain and Stool Frequency no Worse Than Baseline and an SES-CD ≤ 4 Points and Decrease ≥ 2 Points at Week 12

    This measure reports the percentage of participants whose Crohn's disease symptoms and gut inflammation improved at 12 weeks. It includes those with mild or no belly pain (score ≤1), no more than three bowel movements per day (score ≤3), and no worsening from baseline. It also includes participants whose gut inflammation, measured by SES-CD, was low (score ≤4) and improved by at least 2 points. SES-CD assesses inflammation based on four components: size of ulcers, ulcerated surface, affected surface, and presence of narrowing, each scored from 0 (none) to 3 (severe) across five segments (ileum, right colon, transverse colon, left colon, rectum). The total SES-CD score ranges from 0-12 per segment and 0-60 overall, with higher scores indicating greater inflammation.

    Time frame: At Week 12

  7. Percent of Participants With an Average Daily Abdominal Pain Score ≤ 1 Point, and Average Daily Stool Frequency Score ≤ 3 Points With Abdominal Pain and Stool Frequency Score no Worse Than Baseline and an SES-CD Decrease From Baseline of ≥ 50% at Week 12

    This measure reports the percentage of participants whose Crohn's disease symptoms and gut inflammation improved at 12 weeks. It includes those with mild or no belly pain (score ≤1), no more than three bowel movements per day (score ≤3), and no worsening from baseline. It also includes participants whose gut inflammation, measured by SES-CD, improved by at least 50% from baseline. SES-CD assesses inflammation based on four components: size of ulcers, ulcerated surface, affected surface, and presence of narrowing, each scored from 0 (none) to 3 (severe): score ranges from 0-12 across four components and 0-60 overall across five segments (ileum, right colon, transverse colon, left colon, rectum). The total higher SES-CD score indicating greater inflammation.

    Time frame: At Week 12

  8. Histologic Improvement Based on Differences Between Ozanimod and Placebo in Histologic Disease Activity Scores (ie, Global Histologic Activity Score (GHAS) Changes) at Week 12

    This measure evaluated improvement in gut inflammation at 12 wks using Global Histologic Activity Score (GHAS). GHAS was assessed for each ileal \& colonic segment (ileum, right colon, transverse colon, left colon-descending/sigmoid colon \& rectum). Segment subscores were calculated by adding scores for epithelial damage/tissue changes(0-2), cellular infiltration for mononuclear \& polymorphonuclear cells(0-2 each), presence of certain cells(0-3) \& erosion, ulcers, granulomas(0 or 1). GHAS score within each segment ranged from 0-16 \& across five segments ranged from 0-80. Higher scores indicated more inflammation. Responders with histologic remission was defined as GHAS score ≤8 (each segment) \[meeting criteria: epithelial damage(0), architectural changes(0-2), mononuclear cell infiltration(0-2), polymorphonuclear cell infiltration(0), polymorphonuclear cells in epithelium(0), erosion/ulcers(0), granuloma(0-1) \& affected biopsy specimens(0-3)\] \& ≤40 (across all segments).

    Time frame: At Week 12

  9. Percent of Participants With Crohn's Disease Activity Index (CDAI) Reduction From Baseline of ≥ 70 Points at Week 12

    This measure reports the percentage of participants whose Crohn's disease symptoms improved meaningfully after 12 weeks of treatment, defined as a decrease of at least 70 points in their Crohn's Disease Activity Index (CDAI) score from baseline. The CDAI is a composite score used to assess clinical activity in Crohn's disease, based on 8 variables: number of soft/liquid stools, severity of abdominal pain (0 \[none\] to 3 \[severe\]), general well-being (0 \[well\] to 4 \[terrible\]), presence of complications, use of antidiarrheal drugs, presence of an abdominal mass, hematocrit, and deviation in body weight. Scores for stool frequency, pain, and well-being are summed over 7 days prior to each visit. The total CDAI score ranges from 0-600, with higher scores indicating more severe disease (score 150-219 = mild, 220-450 = moderate, \>450 = severe).

    Time frame: At Week 12

  10. Percent of Participants With Absence of Ulcers ≥ 0.5 cm With No Segment With Any Ulcerated Surface ≥ 10% at Week 12

    This measure shows the percentage of participants have no longer any large ulcers (bigger than 0.5 cm) in their gut and in any section of the gut, less than 10% of the surface has ulcers at 12 weeks. This helps to understand how well the treatment is healing the gut and reducing ulceration.

    Time frame: At Week 12

  11. Percent of Participants With a Crohn's Disease Endoscopic Index of Severity (CDEIS) Decrease From Baseline of ≥ 50% at Week 12

    CDEIS is an index used to determine Crohn's disease severity by endoscopic exam of the ileum and colon. The intestine is divided into 5 segments: rectum, sigmoid/left colon, transverse colon, right colon, and ileum. In each segment, four variables are assessed: deep ulceration, superficial ulceration, percentage of ulcerated surface, and percentage of surface affected by Crohn's disease, using 10-cm visual analogue scales. The presence of ulcerated and nonulcerated stenosis is also evaluated across the entire intestine. These factors are weighted and summed for a total score from 0-44, with higher scores indicating more severe disease. This measure reports the percentage of participants whose CDEIS score improved by at least 50% at 12 weeks, based on endoscopic exam.

    Time frame: At Week 12

06

Results

Posted Nov 4, 2025

Participant flow

Pre-Treatment
Participant flow — Pre-Treatment
MilestoneTreatment 1Treatment 2
Started417208
Completed416207
Not completed11
Treatment
Participant flow — Treatment
MilestoneTreatment 1Treatment 2
Started416207
Completed378185
Not completed3822
Withdrew: Adverse event168
Withdrew: Lack of efficacy42
Withdrew: Withdrawal by subject128
Withdrew: Lost to follow-up10
Withdrew: Pregnancy10
Withdrew: Study terminated by sponsor21
Withdrew: Other reason23

Outcome measures

PrimaryPercent of Participants With a Crohn's Disease Activity Index (CDAI) Score < 150 at Week 12

Crohn's Disease Activity Index (CDAI) is a composite score used to measure the clinical activity of Crohn's disease. CDAI uses 8 variables: number of soft/liquid stools, severity of abdominal pain (0=none to 3=severe), general well-being (0=well to 4=terrible), presence of complications, need for antidiarrheal drugs, presence of abdominal mass, hematocrit, and change in body weight. Scores for stool number, abdominal pain, and well-being are summed over the 7 days before each visit. The other factors are also recorded and weighted to create a total CDAI score, which ranges from 0-600, with higher scores indicating worse disease (score 150-219 = mild, 220-450 = moderate, \>450 = severe). This measure reports the percentage of participants whose CDAI score was below 150 at 12 weeks.

Time frame:
At Week 12
Reported as:
Number · Percentage of Participants
Percent of Participants With a Crohn's Disease Activity Index (CDAI) Score < 150 at Week 12
Percentage of ParticipantsTreatment 1Treatment 2
Responders31.320.8
Non-Responders64.473.4
Imputed Non-Responders4.35.8
Statistical analysis
  • Treatment 1 vs Treatment 2 · Mantel Haenszel · p = 0.0049 · Odds ratio (or): 1.79 · 95% CI 1.19 to 2.70Cochran-Mantel-Haenszel (CMH) test
SecondaryPercent of Participants With Average Daily Abdominal Pain Score ≤ 1 Point, and Average Daily Stool Frequency Score ≤ 3 Points With Abdominal Pain and Stool Frequency no Worse Than Baseline at Week 12

Abdominal pain (AP) and stool frequency (SF) clinical remission was defined as an average daily abdominal pain score ≤1 and average daily stool frequency ≤3, with AP and SF no worse than baseline at Week 12. AP was graded on a scale from 0 (none) to 3 (severe), and SF was defined as the number of liquid or soft stools per day. This measure reports the percentage of participants who, by Week 12, had low abdominal pain (score ≤1) and three or fewer bowel movements per day, without worsening symptoms compared to when they started the study. Participants began using the diary at the first visit and continued throughout the study.

Time frame:
At Week 12
Reported as:
Number · Percentage of Participants
Percent of Participants With Average Daily Abdominal Pain Score ≤ 1 Point, and Average Daily Stool Frequency Score ≤ 3 Points With Abdominal Pain and Stool Frequency no Worse Than Baseline at Week 12
Percentage of ParticipantsTreatment 1Treatment 2
Responders30.521.7
Non-Responders66.372.5
Imputed Non-Responders3.15.8
Statistical analysis
  • Treatment 1 vs Treatment 2 · Mantel Haenszel · p = 0.0179 · Odds ratio (or): 1.63 · 95% CI 1.09 to 2.43Cochran-Mantel-Haenszel (CMH) test
SecondaryPercent of Participants With a Simple Endoscopic Score for Crohn's Disease (SES-CD) Score Decrease From Baseline of ≥ 50% at Week 12

The Simple Endoscopic Score for Crohn's Disease (SES-CD) is used to assess the degree of inflammation in patients with Crohn's disease. The SES-CD evaluates four components-size of ulcers, ulcerated surface, affected surface, and presence of narrowing-each scored from 0 (none) to 3 (severe): score ranges from 0-12 across four components and 0-60 overall across five segments (ileum, right colon, transverse colon, left colon, rectum). The total higher SES-CD score indicating greater inflammation. Baseline is defined as the last assessment prior to the first drug administration (based on the time of measurement, if available; otherwise, the last assessment prior to or on the date of first drug administration). This measure reports the percentage of participants whose SES-CD score improved by 50% or more from baseline to Week 12.

Time frame:
At Week 12
Reported as:
Number · Percentage of Participants
Percent of Participants With a Simple Endoscopic Score for Crohn's Disease (SES-CD) Score Decrease From Baseline of ≥ 50% at Week 12
Percentage of ParticipantsTreatment 1Treatment 2
Responders22.118.4
Non-Responders71.677.3
Imputed Non-Responders6.34.3
Statistical analysis
  • Treatment 1 vs Treatment 2 · Mantel Haenszel · p = 0.2720 · Odds ratio (or): 1.27 · 95% CI 0.83 to 1.93Cochran-Mantel-Haenszel (CMH) test
SecondaryPercent of Participants With Crohn's Disease Activity Index (CDAI) Reduction From Baseline of ≥ 100 Points or CDAI Score < 150 at Week 12

The Crohn's Disease Activity Index (CDAI) is a composite score used to measure the clinical activity of Crohn's disease. CDAI is calculated using 8 variables: number of soft/liquid stools, severity of abdominal pain (0 \[none\] to 3 \[severe\]), general well-being (0 \[well\] to 4 \[terrible\]), presence of complications, use of antidiarrheal drugs, presence of an abdominal mass, hematocrit, and deviation in body weight. Scores for stool frequency, pain, and well-being are summed over the 7 days prior to each visit. The remaining variables are also weighted and included in the total CDAI score, which ranges from 0-600, with higher scores indicating worse disease activity (score 150-219 = mild, 220-450 = moderate, \>450 = severe). This measure reports the percentage of participants whose CDAI score improved by at least 100 points, or was below 150, at 12 weeks.

Time frame:
At Week 12
Reported as:
Number · Percentage of Participants
Percent of Participants With Crohn's Disease Activity Index (CDAI) Reduction From Baseline of ≥ 100 Points or CDAI Score < 150 at Week 12
Percentage of ParticipantsTreatment 1Treatment 2
Responders48.839.1
Non-Responders46.955.1
Imputed Non-Responders4.35.8
Statistical analysis
  • Treatment 1 vs Treatment 2 · Mantel Haenszel · p = 0.0193 · Odds ratio (or): 1.52 · 95% CI 1.07 to 2.15Cochran-Mantel-Haenszel (CMH) test
SecondaryPercent of Participants With Crohn's Disease Activity Index (CDAI) Reduction From Baseline of ≥ 100 Points or CDAI Score < 150 and Simple Endoscopic Score for Crohn's Disease (SES-CD) Decrease From Baseline of ≥ 50% at Week 12

The Crohn's Disease Activity Index (CDAI) is a composite score used to measure clinical activity in Crohn's disease. CDAI is based on 8 variables: number of soft/liquid stools, severity of abdominal pain (0 \[none\] to 3 \[severe\]), general well-being (0 \[well\] to 4 \[terrible\]), presence of complications, use of antidiarrheal drugs, abdominal mass, hematocrit, and deviation in body weight. Scores for stool frequency, pain, and well-being are summed over 7 days prior to each visit. The total CDAI score ranges from 0-600, with higher scores indicating worse disease activity (score 150-219 = mild, 220-450 = moderate, \>450 = severe). This measure reports the percentage of participants whose Crohn's disease improved at 12 weeks, defined as a CDAI decrease of at least 100 points or a score below 150, along with at least a 50% reduction in intestinal inflammation (SES-CD score).

Time frame:
At Week 12
Reported as:
Number · Percentage of Participants
Percent of Participants With Crohn's Disease Activity Index (CDAI) Reduction From Baseline of ≥ 100 Points or CDAI Score < 150 and Simple Endoscopic Score for Crohn's Disease (SES-CD) Decrease From Baseline of ≥ 50% at Week 12
Percentage of ParticipantsTreatment 1Treatment 2
Responders16.613.5
Non-Responders78.684.1
Imputed Non-Responders4.82.4
Statistical analysis
  • Treatment 1 vs Treatment 2 · Mantel Haenszel · p = 0.3167 · Odds ratio (or): 1.28 · 95% CI 0.79 to 2.05Cochran-Mantel-Haenszel (CMH) test
SecondaryPercent of Participants With Crohn's Disease Activity Index (CDAI) Score < 150 at Week 12 and Simple Endoscopic Score for Crohn's Disease (SES-CD) Decrease From Baseline of ≥ 50% at Week 12

This endpoint measured the percentage of participants who achieved both clinical remission and significant endoscopic improvement at Week 12. Clinical remission was defined as a Crohn's Disease Activity Index (CDAI) score of less than 150 at Week 12. Endoscopic improvement was defined as a decrease of at least 50% from baseline in the Simple Endoscopic Score for Crohn's Disease (SES-CD) at Week 12. The CDAI was a composite score assessing disease activity based on symptoms and laboratory values, while the SES-CD evaluated endoscopic findings in the intestinal mucosa. Achieving both criteria indicated substantial improvement in both symptoms and intestinal inflammation.

Time frame:
At Week 12
Reported as:
Number · Percent of Participants
Percent of Participants With Crohn's Disease Activity Index (CDAI) Score < 150 at Week 12 and Simple Endoscopic Score for Crohn's Disease (SES-CD) Decrease From Baseline of ≥ 50% at Week 12
Percent of ParticipantsTreatment 1Treatment 2
Responders16.613.5
Non-Responders78.684.1
Imputed Non-Responders4.82.4
Statistical analysis
  • Treatment 1 vs Treatment 2 · Mantel Haenszel · p = 0.3167 · Odds ratio (or): 1.28 · 95% CI 0.79 to 2.05Cochran-Mantel-Haenszel (CMH) test
SecondaryPercent of Participants With an Average Daily Abdominal Pain Score ≤ 1 Point, and Average Daily Stool Frequency Score ≤ 3 Points With Abdominal Pain and Stool Frequency no Worse Than Baseline and an SES-CD ≤ 4 Points and Decrease ≥ 2 Points at Week 12

This measure reports the percentage of participants whose Crohn's disease symptoms and gut inflammation improved at 12 weeks. It includes those with mild or no belly pain (score ≤1), no more than three bowel movements per day (score ≤3), and no worsening from baseline. It also includes participants whose gut inflammation, measured by SES-CD, was low (score ≤4) and improved by at least 2 points. SES-CD assesses inflammation based on four components: size of ulcers, ulcerated surface, affected surface, and presence of narrowing, each scored from 0 (none) to 3 (severe) across five segments (ileum, right colon, transverse colon, left colon, rectum). The total SES-CD score ranges from 0-12 per segment and 0-60 overall, with higher scores indicating greater inflammation.

Time frame:
At Week 12
Reported as:
Number · Percentage of Participants
Percent of Participants With an Average Daily Abdominal Pain Score ≤ 1 Point, and Average Daily Stool Frequency Score ≤ 3 Points With Abdominal Pain and Stool Frequency no Worse Than Baseline and an SES-CD ≤ 4 Points and Decrease ≥ 2 Points at Week 12
Percentage of ParticipantsTreatment 1Treatment 2
Responders8.76.3
Non-Responders88.091.3
Imputed Non-Responders3.42.4
Statistical analysis
  • Treatment 1 vs Treatment 2 · Mantel Haenszel · p = 0.2978 · Odds ratio (or): 1.42 · 95% CI 0.73 to 2.77Cochran-Mantel-Haenszel (CMH) test
SecondaryPercent of Participants With an Average Daily Abdominal Pain Score ≤ 1 Point, and Average Daily Stool Frequency Score ≤ 3 Points With Abdominal Pain and Stool Frequency Score no Worse Than Baseline and an SES-CD Decrease From Baseline of ≥ 50% at Week 12

This measure reports the percentage of participants whose Crohn's disease symptoms and gut inflammation improved at 12 weeks. It includes those with mild or no belly pain (score ≤1), no more than three bowel movements per day (score ≤3), and no worsening from baseline. It also includes participants whose gut inflammation, measured by SES-CD, improved by at least 50% from baseline. SES-CD assesses inflammation based on four components: size of ulcers, ulcerated surface, affected surface, and presence of narrowing, each scored from 0 (none) to 3 (severe): score ranges from 0-12 across four components and 0-60 overall across five segments (ileum, right colon, transverse colon, left colon, rectum). The total higher SES-CD score indicating greater inflammation.

Time frame:
At Week 12
Reported as:
Number · Percentage of Participants
Percent of Participants With an Average Daily Abdominal Pain Score ≤ 1 Point, and Average Daily Stool Frequency Score ≤ 3 Points With Abdominal Pain and Stool Frequency Score no Worse Than Baseline and an SES-CD Decrease From Baseline of ≥ 50% at Week 12
Percentage of ParticipantsTreatment 1Treatment 2
Responders11.17.7
Non-Responders85.689.9
Imputed Non-Responders3.42.4
Statistical analysis
  • Treatment 1 vs Treatment 2 · Mantel Haenszel · p = 0.1895 · Odds ratio (or): 1.49 · 95% CI 0.82 to 2.72Cochran-Mantel-Haenszel (CMH) test
SecondaryHistologic Improvement Based on Differences Between Ozanimod and Placebo in Histologic Disease Activity Scores (ie, Global Histologic Activity Score (GHAS) Changes) at Week 12

This measure evaluated improvement in gut inflammation at 12 wks using Global Histologic Activity Score (GHAS). GHAS was assessed for each ileal \& colonic segment (ileum, right colon, transverse colon, left colon-descending/sigmoid colon \& rectum). Segment subscores were calculated by adding scores for epithelial damage/tissue changes(0-2), cellular infiltration for mononuclear \& polymorphonuclear cells(0-2 each), presence of certain cells(0-3) \& erosion, ulcers, granulomas(0 or 1). GHAS score within each segment ranged from 0-16 \& across five segments ranged from 0-80. Higher scores indicated more inflammation. Responders with histologic remission was defined as GHAS score ≤8 (each segment) \[meeting criteria: epithelial damage(0), architectural changes(0-2), mononuclear cell infiltration(0-2), polymorphonuclear cell infiltration(0), polymorphonuclear cells in epithelium(0), erosion/ulcers(0), granuloma(0-1) \& affected biopsy specimens(0-3)\] \& ≤40 (across all segments).

Time frame:
At Week 12
Reported as:
Number · Percentage of Participants
Histologic Improvement Based on Differences Between Ozanimod and Placebo in Histologic Disease Activity Scores (ie, Global Histologic Activity Score (GHAS) Changes) at Week 12
Percentage of ParticipantsTreatment 1Treatment 2
Responders14.99.2
Non-Responders78.485.5
Imputed Non-Responders6.75.3
Statistical analysis
  • Treatment 1 vs Treatment 2 · Mantel Haenszel · p = 0.0452 · Odds ratio (or): 1.73 · 95% CI 1.00 to 2.97Cochran-Mantel-Haenszel (CMH) test
SecondaryPercent of Participants With Crohn's Disease Activity Index (CDAI) Reduction From Baseline of ≥ 70 Points at Week 12

This measure reports the percentage of participants whose Crohn's disease symptoms improved meaningfully after 12 weeks of treatment, defined as a decrease of at least 70 points in their Crohn's Disease Activity Index (CDAI) score from baseline. The CDAI is a composite score used to assess clinical activity in Crohn's disease, based on 8 variables: number of soft/liquid stools, severity of abdominal pain (0 \[none\] to 3 \[severe\]), general well-being (0 \[well\] to 4 \[terrible\]), presence of complications, use of antidiarrheal drugs, presence of an abdominal mass, hematocrit, and deviation in body weight. Scores for stool frequency, pain, and well-being are summed over 7 days prior to each visit. The total CDAI score ranges from 0-600, with higher scores indicating more severe disease (score 150-219 = mild, 220-450 = moderate, \>450 = severe).

Time frame:
At Week 12
Reported as:
Number · Percentage of Participants
Percent of Participants With Crohn's Disease Activity Index (CDAI) Reduction From Baseline of ≥ 70 Points at Week 12
Percentage of ParticipantsTreatment 1Treatment 2
Responders55.345.4
Non-Responders40.448.8
Imputed Non-Responders4.35.8
Statistical analysis
  • Treatment 1 vs Treatment 2 · Mantel Haenszel · p = 0.0173 · Odds ratio (or): 1.52 · 95% CI 1.08 to 2.14Cochran-Mantel-Haenszel (CMH) test
SecondaryPercent of Participants With Absence of Ulcers ≥ 0.5 cm With No Segment With Any Ulcerated Surface ≥ 10% at Week 12

This measure shows the percentage of participants have no longer any large ulcers (bigger than 0.5 cm) in their gut and in any section of the gut, less than 10% of the surface has ulcers at 12 weeks. This helps to understand how well the treatment is healing the gut and reducing ulceration.

Time frame:
At Week 12
Reported as:
Number · Percentage of Participants
Percent of Participants With Absence of Ulcers ≥ 0.5 cm With No Segment With Any Ulcerated Surface ≥ 10% at Week 12
Percentage of ParticipantsTreatment 1Treatment 2
Responders26.920.3
Non-Responders66.875.4
Imputed Non-Responders6.34.3
Statistical analysis
  • Treatment 1 vs Treatment 2 · Mantel Haenszel · p = 0.0670 · Odds ratio (or): 1.46 · 95% CI 0.97 to 2.20Cochran-Mantel-Haenszel (CMH) test
SecondaryPercent of Participants With a Crohn's Disease Endoscopic Index of Severity (CDEIS) Decrease From Baseline of ≥ 50% at Week 12

CDEIS is an index used to determine Crohn's disease severity by endoscopic exam of the ileum and colon. The intestine is divided into 5 segments: rectum, sigmoid/left colon, transverse colon, right colon, and ileum. In each segment, four variables are assessed: deep ulceration, superficial ulceration, percentage of ulcerated surface, and percentage of surface affected by Crohn's disease, using 10-cm visual analogue scales. The presence of ulcerated and nonulcerated stenosis is also evaluated across the entire intestine. These factors are weighted and summed for a total score from 0-44, with higher scores indicating more severe disease. This measure reports the percentage of participants whose CDEIS score improved by at least 50% at 12 weeks, based on endoscopic exam.

Time frame:
At Week 12
Reported as:
Number · Percentage of Participants
Percent of Participants With a Crohn's Disease Endoscopic Index of Severity (CDEIS) Decrease From Baseline of ≥ 50% at Week 12
Percentage of ParticipantsTreatment 1Treatment 2
Responders25.519.3
Non-Responders68.376.3
Imputed Non-Responders6.34.3
Statistical analysis
  • Treatment 1 vs Treatment 2 · Mantel Haenszel · p = 0.0835 · Odds ratio (or): 1.43 · 95% CI 0.95 to 2.16Cochran-Mantel-Haenszel (CMH) test

Adverse events

Collected over Participants were assessed for All-Cause Mortality, Serious Adverse Events (SAEs) and Other Adverse Events (AEs) were assessed from first dose of study medication until study completion (assessed up to approximately 79 months).. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Treatment 10/416 (0%)27/416 (6.5%)22/416 (5.3%)
Treatment 20/207 (0%)10/207 (4.8%)22/207 (10.6%)
Most frequent serious events
Showing 10 of 28
Most frequent serious events
EventTreatment 1Treatment 2
Crohn's diseaseGastrointestinal disorders10/4164/207
SubileusGastrointestinal disorders0/4161/207
Abdominal abscessInfections and infestations0/4161/207
Pneumonia aspirationInfections and infestations0/4161/207
Incision site haemorrhageInjury, poisoning and procedural complications0/4161/207
Skin lacerationInjury, poisoning and procedural complications0/4161/207
Heart rate irregularInvestigations0/4161/207
MalnutritionMetabolism and nutrition disorders0/4161/207
ArthritisMusculoskeletal and connective tissue disorders0/4161/207
Anal abscessInfections and infestations2/4160/207
Most frequent other events
Most frequent other events
EventTreatment 1Treatment 2
Crohn's diseaseGastrointestinal disorders9/41611/207
ArthralgiaMusculoskeletal and connective tissue disorders13/41611/207

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Treatment 1Treatment 2Total
<=18 years000
Between 18 and 65 years394199593
>=65 years23932
Sex: Female, Male
Sex: Female, Male(Participants)Treatment 1Treatment 2Total
Female21097307
Male207111318
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Treatment 1Treatment 2Total
Hispanic or Latino201434
Not Hispanic or Latino391190581
Unknown or Not Reported6410
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Treatment 1Treatment 2Total
American Indian or Alaska Native011
Asian21930
Native Hawaiian or Other Pacific Islander000
Black or African American246
White378188566
More than one race000
Unknown or Not Reported16622
07

Study locations

408 sites
  • Holland Center for Family Health
    Peoria, Arizona 85381, United States
  • Local Institution - 026
    North Little Rock, Arkansas 72117, United States
  • Local Institution - 284
    Camarillo, California 93012, United States
  • Local Institution - 165
    Chula Vista, California 91911, United States
  • Local Institution - 039
    Garden Grove, California 92843, United States
  • San Diego Clinical Trials
    La Mesa, California 91942, United States
  • Local Institution - 061
    Los Angeles, California 90027, United States
  • Local Institution - 110
    Los Angeles, California 90067, United States
  • Local Institution - 140
    Mission Viejo, California 92691, United States
  • Alliance Clinical Research
    Oceanside, California 92056, United States
  • Local Institution - 027
    Orange, California 92868, United States
  • Palo Alto Center-Palo Alto Medical Foundation Research Institute
    Palo Alto, California 94304, United States
  • Local Institution - 006
    Rialto, California 92377, United States
  • Local Institution - 003
    San Diego, California 92123, United States
  • Local Institution - 297
    Lakewood, Colorado 80228, United States
  • Local Institution - 225
    Bristol, Connecticut 06010, United States
  • Local Institution - 091
    New Haven, Connecticut 06510, United States
  • Local Institution - 062
    Clearwater, Florida 33756-3839, United States
  • Local Institution - 218
    Gainesville, Florida 32608, United States
  • Local Institution - 203
    Hialeah, Florida 33010, United States
  • Harmony Medical Research Institute
    Hialeah, Florida 33016, United States
  • Local Institution - 078
    Hialeah, Florida 33016, United States
  • Local Institution - 179
    Hollywood, Florida 33021, United States
  • Local Institution - 101
    Homestead, Florida 33033, United States
  • Local Institution - 016
    Largo, Florida 33777, United States
  • Local Institution - 199
    Miami, Florida 33125, United States
  • LCC Medical Research Institute, LLC
    Miami, Florida 33126, United States
  • Local Institution - 169
    Miami, Florida 33156, United States
  • Local Institution - 090
    Naples, Florida 34109, United States
  • Local Institution - 214
    New Smyrna Beach, Florida 32168, United States
  • Local Institution - 076
    Orlando, Florida 32819, United States
  • Local Institution - 098
    Port Orange, Florida 32127, United States
  • Local Institution - 226
    Tampa, Florida 33612, United States
  • Local Institution - 149
    Tampa, Florida 33614, United States
  • Local Institution - 114
    Weeki Wachee, Florida 34607, United States
  • Local Institution - 205
    Atlanta, Georgia 30308, United States
  • Local Institution - 222
    Atlanta, Georgia 30322, United States
  • Local Institution - 019
    Atlanta, Georgia 30342, United States
  • Local Institution - 063
    Atlanta, Georgia 30342, United States
  • Local Institution - 074
    Columbus, Georgia 31904, United States
  • Local Institution - 028
    Macon, Georgia 31201, United States
  • Local Institution - 194
    Chicago, Illinois 60612, United States
  • Local Institution - 036
    Chicago, Illinois 60622, United States
  • Local Institution - 146
    Urbana, Illinois 61801, United States
  • Iowa Digestive Disease Center
    Clive, Iowa 50325, United States
  • Local Institution - 155
    Lexington, Kentucky 40536-0298, United States
  • CroNOLA LLC
    Houma, Louisiana 70360, United States
  • Local Institution - 053
    Lake Charles, Louisiana 70601, United States
  • Local Institution - 104
    New Orleans, Louisiana 70125, United States
  • Local Institution - 278
    Baltimore, Maryland 21224, United States
  • Local Institution - 129
    Catonsville, Maryland 21228, United States
  • Local Institution - 282
    Glen Burnie, Maryland 21061, United States
  • Local Institution - 142
    Chestnut Hill, Massachusetts 02467, United States
  • Local Institution - 228
    North Worcester, Massachusetts 01655, United States
  • Local Institution - 286
    Springfield, Massachusetts 01199, United States
  • Local Institution - 191
    Caro, Michigan 48723, United States
  • Local Institution - 108
    Southfield, Michigan 48034, United States
  • Local Institution - 301
    Wyoming, Michigan 49519, United States
  • Local Institution - 300
    Ypsilanti, Michigan 48197, United States
  • Local Institution - 274
    Jackson, Mississippi 39216, United States
  • Local Institution - 029
    St Louis, Missouri 63110, United States
  • Local Institution - 215
    Englewood, New Jersey 07631, United States
  • Local Institution - 144
    Brooklyn, New York 11235, United States
  • Local Institution - 009
    Great Neck, New York 11021, United States
  • Local Institution - 105
    New York, New York 10021, United States
  • Local Institution - 043
    New York, New York 10075, United States
  • Local Institution - 094
    Orchard Park, New York 14127, United States
  • Advantage Clinical Trials
    The Bronx, New York 10468, United States
  • Local Institution - 017
    Asheville, North Carolina 28801, United States
  • Local Institution - 152
    Charlotte, North Carolina 28204, United States
  • Local Institution - 055
    Charlotte, North Carolina 28207, United States
  • Local Institution - 133
    Greenville, North Carolina 27834, United States
  • Local Institution - 302
    Raleigh, North Carolina 27612, United States
  • Local Institution - 210
    Beachwood, Ohio 44122, United States
  • Local Institution - 291
    Cincinnati, Ohio 45219, United States
  • Local Institution - 018
    Cleveland, Ohio 44195, United States
  • Local Institution - 177
    Mentor, Ohio 44060, United States
  • Local Institution - 211
    Warren, Ohio 44483, United States
  • Local Institution - 208
    Oklahoma City, Oklahoma 73104, United States
  • Local Institution - 131
    Oklahoma City, Oklahoma 73112, United States
  • Local Institution - 113
    Portland, Oregon 97239, United States
  • Local Institution - 197
    Hershey, Pennsylvania 17033, United States
  • Penn State University Milton S Hershey Medical Center
    State College, Pennsylvania 16803, United States
  • Local Institution - 253
    Providence, Rhode Island 02904, United States
  • Local Institution - 289
    Charleston, South Carolina 29425, United States
  • Local Institution - 121
    Nashville, Tennessee 37211, United States
  • Vanderbilt University Medical Center
    Nashville, Tennessee 37212, United States
  • Advanced Gastroenterology
    Union City, Tennessee 38261, United States
  • Local Institution - 158
    Austin, Texas 78742, United States
  • Local Institution - 056
    Houston, Texas 77030, United States
  • Local Institution - 150
    Houston, Texas 77030, United States
  • Local Institution - 102
    Houston, Texas 77043, United States
  • Local Institution - 082
    Houston, Texas 77070, United States
  • Local Institution - 303
    Houston, Texas 77074, United States
  • Local Institution - 088
    Houston, Texas 77084, United States
  • Local Institution - 085
    San Antonio, Texas 78215, United States
  • Local Institution - 223
    San Antonio, Texas 78229, United States
  • Local Institution - 007
    Southlake, Texas 76092, United States
  • Local Institution - 073
    Tyler, Texas 75701, United States
  • Local Institution - 025
    Salt Lake City, Utah 84132, United States

Showing the first 100 of 408 sites across 35 countries.

08

References and documents

Publications

  • Feagan BG, Schreiber S, Afzali A, Rieder F, Hyams J, Kollengode K, Pearlman J, Son V, Marta C, Wolf DC, D'Haens GG. Ozanimod as a novel oral small molecule therapy for the treatment of Crohn's disease: The YELLOWSTONE clinical trial program. Contemp Clin Trials. 2022 Nov;122:106958. doi: 10.1016/j.cct.2022.106958. Epub 2022 Oct 5. PubMed 36208720 ↗

Study documents

  • Protocol and statistical analysis plan · Jun 14, 2021

Documents are hosted by the registry — open the source record to download them.

09

Registry details

Key details

Study ID
NCT03440372
Lead sponsor
Celgene
Responsible party
Sponsor
First posted
Feb 22, 2018
Start date
Feb 27, 2018
Primary completion
Oct 1, 2024
Completion
Oct 1, 2024
Results posted
Nov 4, 2025
Last update
Nov 4, 2025

Study contacts

Bristol-Myers Squibb
study director · Bristol-Myers Squibb

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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