A Phase 2 interventional study of E6011 and Placebo in Crohn's Disease, sponsored by EA Pharma Co., Ltd.. Completed at 46 sites in 5 countries. Open to participants aged 18 Years to 64 Years. Per ClinicalTrials.gov, last updated 2025-04-02.
Sponsored by EA Pharma Co., Ltd. (part of Eisai Co., Ltd.) · Phase 2, Interventional, and Treatment
The primary purpose of this study is to examine the efficacy and safety of E6011 at 12 weeks after administration by means of double-blind placebo-controlled trial.
Participants with moderate to severe Crohn's disease will be enrolled in this study.
The study will include screening period, remission-induction period (double-blind), rescue period (open-label), extension period (open-label), post-observation period, and a follow-up period.
At the end of remission-induction period, participants with reduction in Crohn's disease activity index (CDAI) score of 70 points or more when compared to baseline will move on to the open-label extension period, and participants with less than 70 points reduction in CDAI score will move on to the rescue period. At the end of the rescue period, participants with a reduction in the CDAI of 70 points or more will move on to the open-label extension period and with less than 70 points reduction in the CDAI score will be discontinued.
The post-observation period will include in-person assessment after the completion or discontinuation of the extension period, and participants will be contacted by telephone, etc. after the last dose of study drug administration. Participants will be contacted over phone after the last dose of study drug administration for follow up assessments.
1,992 studies on the registry are indexed under Crohn Disease; 478 are open to participants now.
This study's enrollment of 25 is below the median of 67 across 1,260 interventional studies indexed under Crohn Disease.
Browse Crohn Disease studies →EA Pharma Co., Ltd. is the lead sponsor of 13 studies on the registry; none are open to participants now.
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Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Investigational drug or device
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Drug: E6011
Drug: Placebo
E6011, infusion, intravenously.
Placebo, infusion, intravenously.
Percentage of Participants With Clinical Response (CR) 100 (CR100) at Week 12
CR100 was defined as clinical response with a reduction of greater than or equal to (\>=) 100 points in CDAI score from baseline. The CDAI system was a composite index of 8 disease activity variables: severity of abdominal pain, general well-being, very soft/liquid stool frequency, extra-intestinal symptoms, need for antidiarrheal drugs, presence of an abdominal mass, body weight and hematocrit. The sub scores of abdominal pain (0-3), general well-being (0-4, higher values mean worse well-being), and number of very soft or liquid stools were then summed. 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.
Time frame: At Week 12
Percentage of Participants With CR70 and CR100
CR70 was defined as CR with a reduction of \>=70 points in CDAI score from baseline. CR100 was defined as clinical response with a reduction of \>=100 points in CDAI score from baseline. The CDAI system was a composite index of 8 disease activity variables: severity of abdominal pain, general well-being, very soft/liquid stool frequency, extra-intestinal symptoms, need for antidiarrheal drugs, presence of an abdominal mass, body weight and hematocrit. The sub scores of abdominal pain (0-3), general well-being (0-4, higher values mean worse well-being), and number of very soft or liquid stools were then summed. 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.
Time frame: At Weeks 2, 4, 8, 12, 14, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60 and 64
Percentage of Participants With Below 150 CDAI Points
CDAI remission was defined as CDAI score below (\<) 150 points. The CDAI system was a composite index of 8 disease activity variables: severity of abdominal pain, general well-being, very soft/liquid stool frequency, extra-intestinal symptoms, need for antidiarrheal drugs, presence of an abdominal mass, body weight and hematocrit. The sub scores of abdominal pain (0-3), general well-being (0-4, higher values mean worse well-being), and number of very soft or liquid stools were then summed. 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.
Time frame: At Weeks 2, 4, 8, 12, 14, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60 and 64
Percentage of Participants With at Least 5-point and 8-point Reduction From Baseline in Patient Reported Outcome 2 (PRO2)
Patient reported outcome 2-clinical response 5 (PRO2-CR5) was defined as CR with a reduction of 5 or more points in PRO2 score from baseline. Patient reported outcome 2-clinical response 8 (PRO2-CR8) was defined as CR with a reduction of 8 or more points in PRO2 score from baseline. The PRO2 scale is a patient-reported outcome measure specifically used to assess the severity of Crohn's disease. It is derived from the CDAI and focuses on two main symptoms: abdominal pain and stool frequency. Participants rate their abdominal pain on a scale from 0 (none) to 3 (severe) and report the number of soft or liquid stools they have per day, which are then multiplied by a factor of 2 and 5, respectively. The scores from these two components are combined to give an overall PRO2 score ranging from 0 to no upper limit, with a higher score=worse outcome.
Time frame: At Weeks 2, 4, 8, 12, 14, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60 and 64
Percentage of Participants With Below 8 Points in PRO2
The PRO2 scale is a patient-reported outcome measure specifically used to assess the severity of Crohn's disease. It is derived from the CDAI and focuses on two main symptoms: abdominal pain and stool frequency. Participants rate their abdominal pain on a scale from 0 (none) to 3 (severe) and report the number of soft or liquid stools they have per day, which are then multiplied by a factor of 2 and 5, respectively. The scores from these two components are combined to give an overall PRO2 score ranging from 0 to no upper limit, with a higher score=worse outcome.
Time frame: At Weeks 2, 4, 8, 12, 14, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60 and 64
Percentage of Participants With at Least 50 Percent (%) Improvement in (Endoscopic Response) Simple Endoscopic Score for Crohn's Disease (SES-CD) Score at Week 12
Endoscopic response was defined as a improvement in SES-CD of at least 50% from baseline. 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: terminal 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 severity of disease.
Time frame: At Week 12
Percentage of Participants With Less Than or Equal to (<=) 2 (Endoscopic Remission) SES-CD Score at Week 12
Endoscopic remission was defined as 2 or less points on SES-CD. The SES-CD assesses following 4 components: size of ulcers, ulcerated surface, affected surface, and presence of narrowing. Each of these components was scored on scale of 0 (none/unaffected) to 3 (worst). In SES-CD, each of these 4 components are assessed in 5 segments: terminal 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 severity of disease.
Time frame: At Week 12
Change From Baseline in CDAI Score
The CDAI system was a composite index of 8 disease activity variables: severity of abdominal pain, general well-being, very soft/liquid stool frequency, extra-intestinal symptoms, need for antidiarrheal drugs, presence of an abdominal mass, body weight and hematocrit. The sub scores of abdominal pain (0-3), general well-being (0-4, higher values mean worse well-being), and number of very soft or liquid stools were then summed. 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.
Time frame: Baseline, at Weeks 2, 4, 8, 12, 14, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60 and 64
Percent Change From Baseline in CDAI Score
The CDAI system was a composite index of 8 disease activity variables: severity of abdominal pain, general well-being, very soft/liquid stool frequency, extra-intestinal symptoms, need for antidiarrheal drugs, presence of an abdominal mass, body weight and hematocrit. The sub scores of abdominal pain (0-3), general well-being (0-4, higher values mean worse well-being), and number of very soft or liquid stools were then summed. 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.
Time frame: Baseline, at Weeks 2, 4, 8, 12, 14, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60 and 64
Change From Baseline in PRO2
The PRO2 scale is a patient-reported outcome measure specifically used to assess the severity of Crohn's disease. It is derived from the CDAI and focuses on two main symptoms: abdominal pain and stool frequency. Participants rate their abdominal pain on a scale from 0 (none) to 3 (severe) and report the number of soft or liquid stools they have per day, which are then multiplied by a factor of 2 and 5, respectively. The scores from these two components are combined to give an overall PRO2 score ranging from 0 to no upper limit, with a higher score=worse outcome.
Time frame: Baseline, at Weeks 2, 4, 8, 12, 14, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60 and 64
Percent Change From Baseline in PRO2
The PRO2 scale is a patient-reported outcome measure specifically used to assess the severity of Crohn's disease. It is derived from the CDAI and focuses on two main symptoms: abdominal pain and stool frequency. Participants rate their abdominal pain on a scale from 0 (none) to 3 (severe) and report the number of soft or liquid stools they have per day, which are then multiplied by a factor of 2 and 5, respectively. The scores from these two components are combined to give an overall PRO2 score ranging from 0 to no upper limit, with a higher score=worse outcome.
Time frame: At Weeks 2, 4, 8, 12, 14, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60 and 64
Change From Baseline in SES-CD Score at Week 12
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: terminal 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 severity of disease.
Time frame: Baseline, at Week 12
Percent Change From Baseline in SES-CD Score at Week 12
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: terminal 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 severity of disease.
Time frame: Baseline, at Week 12
Percentage of Participants Who Achieved Steroid-free Remission up to Week 64
Steroid-free remission was defined as clinical remission (CDAI remission or PRO2-remission) in participants who became steroid free through steroid reduction. CDAI remission was defined as CDAI score below 150 points. PRO2-remission was defined as PRO2- score less than 8-points. The CDAI system was a composite index of 8 disease activity variables: severity of abdominal pain, general well-being, very soft/liquid stool frequency, extra-intestinal symptoms, need for antidiarrheal drugs, presence of an abdominal mass, body weight and hematocrit. The total CDAI score ranged from 0-600 with a higher score indicating a worse outcome. Participants for PRO2 scale rate their abdominal pain on scale from 0 (none) to 3 (severe) and report the number of soft or liquid stools they have per day, which are then multiplied by a factor of 2 and 5, respectively. Scores from two components combined to give overall score ranging from 0 to no upper limit, with higher score=worse outcome.
Time frame: Up to Week 64
Percentage of Participants Who Achieved Steroid-free Improvement up to Week 64
Steroid-free clinical improvement = clinical response (CR70 response, CR100 response, PRO2-CR5 and PRO2-CR8 responses) in participants who became steroid free through steroid reduction. CR70 and CR100 = clinical response with decrease of \>=70 point and \>=100 point from baseline, respectively in CDAI. PRO2-CR5 and PRO2-CR8 = clinical response with decrease of \>=5 point and \>=8 point from baseline, respectively in PRO2. CDAI system was composite index of 8 disease activity variables. Total CDAI score ranged 0-600; higher score = worse outcome. Participants for PRO2 scale rate their abdominal pain on scale from 0 (none) to 3 (severe); report number of soft or liquid stools they have per day, which are multiplied by factor of 2 and 5, respectively. The scores from these two components are combined to give an overall PRO2 score ranging from 0 to no upper limit, with a higher score=worse outcome.
Time frame: Up to Week 64
Change From Baseline in Steroid Dosage in Participants Concomitantly Using Adrenocorticosteroids up to Week 64
Change from baseline in steroid dosage in participants concomitantly using adrenocorticosteroids up to Week 64 was reported.
Time frame: Baseline up to Week 64
Percent Change From Baseline in Steroid Dosage in Participants Concomitantly Using Adrenocorticosteroids up to Week 64
Percent change from baseline in steroid dosage in participants concomitantly using adrenocorticosteroids up to Week 64 was reported.
Time frame: Baseline up to Week 64
Participants took part in the study at 49 investigative sites in Japan, Czech Republic, Hungary, Poland, and Russia from 25 April 2019 to 03 April 2024.
| Milestone | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg |
|---|---|---|
| Started | 12 | 13 |
| Cdai responders at week 12 | 5 | 6 |
| Cdai non-responders at week 12 | 5 | 7 |
| Completed | 10 | 13 |
| Not completed | 2 | 0 |
| Withdrew: Withdrawal by subject | 2 | 0 |
| Milestone | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg |
|---|---|---|
| Started | 5 | 7 |
| Cdai responders at week 24 | 2 | 2 |
| Cdai non-responders at week 24 | 2 | 1 |
| Completed | 4 | 3 |
| Not completed | 1 | 4 |
| Withdrew: Withdrawal by subject | 1 | 2 |
| Withdrew: Progressive disease | 0 | 2 |
| Milestone | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg |
|---|---|---|
| Started | 7 | 8 |
| Completed | 2 | 5 |
| Not completed | 5 | 3 |
| Withdrew: Lack of efficacy | 1 | 1 |
| Withdrew: Progressive disease | 1 | 0 |
| Withdrew: Other | 3 | 2 |
| Milestone | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg |
|---|---|---|
| Started | 12 | 13 |
| Completed | 12 | 13 |
| Not completed | 0 | 0 |
CR100 was defined as clinical response with a reduction of greater than or equal to (\>=) 100 points in CDAI score from baseline. The CDAI system was a composite index of 8 disease activity variables: severity of abdominal pain, general well-being, very soft/liquid stool frequency, extra-intestinal symptoms, need for antidiarrheal drugs, presence of an abdominal mass, body weight and hematocrit. The sub scores of abdominal pain (0-3), general well-being (0-4, higher values mean worse well-being), and number of very soft or liquid stools were then summed. 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.
| percentage of participants | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg |
|---|---|---|
| Percentage of Participants With Clinical Response (CR) 100 (CR100) at Week 12 | 33.3 (9.9 to 65.1) | 23.1 (5.0 to 53.8) |
CR70 was defined as CR with a reduction of \>=70 points in CDAI score from baseline. CR100 was defined as clinical response with a reduction of \>=100 points in CDAI score from baseline. The CDAI system was a composite index of 8 disease activity variables: severity of abdominal pain, general well-being, very soft/liquid stool frequency, extra-intestinal symptoms, need for antidiarrheal drugs, presence of an abdominal mass, body weight and hematocrit. The sub scores of abdominal pain (0-3), general well-being (0-4, higher values mean worse well-being), and number of very soft or liquid stools were then summed. 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.
| percentage of participants | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg |
|---|---|---|
| CR70: Week 2 | 16.7 | 23.1 |
| CR70: Week 4 | 45.5 | 23.1 |
| CR70: Week 8 | 50.0 | 38.5 |
| CR70: Week 12 | 50.0 | 46.2 |
| CR70: Week 14 | 25.0 | 33.3 |
| CR70: Week 16 | 70.0 | 60.0 |
| CR70: Week 20 | 66.7 | 62.5 |
| CR70: Week 24 | 62.5 | 71.4 |
| CR70: Week 28 | 100.0 | 85.7 |
| CR70: Week 32 | 50.0 | 83.3 |
| CR70: Week 36 | 100.0 | 83.3 |
| CR70: Week 40 | 100.0 | 75.0 |
| CR70: Week 44 | 100.0 | 80.0 |
| CR70: Week 48 | 66.7 | 100.0 |
| CR70: Week 52 | 66.7 | 66.7 |
| CR70: Week 56 | — | 100.0 |
| CR70: Week 60 | — | 100.0 |
| CR70: Week 64 | — | 100.0 |
| CR100: Week 2 | 16.7 | 15.4 |
| CR100: Week 4 | 18.2 | 23.1 |
| CR100: Week 8 | 30.0 | 30.8 |
| CR100: Week 12 | 40.0 | 23.1 |
| CR100: Week 14 | 25.0 | 33.3 |
| CR100: Week 16 | 70.0 | 50.0 |
| CR100: Week 20 | 55.6 | 50.0 |
| CR100: Week 24 | 50.0 | 57.1 |
| CR100: Week 28 | 100.0 | 71.4 |
| CR100: Week 32 | 50.0 | 83.3 |
| CR100: Week 36 | 75.0 | 50.0 |
| CR100: Week 40 | 100.0 | 75.0 |
| CR100: Week 44 | 66.7 | 80.0 |
| CR100: Week 48 | 66.7 | 75.0 |
| CR100: Week 52 | 66.7 | 66.7 |
| CR100: Week 56 | — | 100.0 |
| CR100: Week 60 | — | 50.0 |
| CR100: Week 64 | — | 100.0 |
CDAI remission was defined as CDAI score below (\<) 150 points. The CDAI system was a composite index of 8 disease activity variables: severity of abdominal pain, general well-being, very soft/liquid stool frequency, extra-intestinal symptoms, need for antidiarrheal drugs, presence of an abdominal mass, body weight and hematocrit. The sub scores of abdominal pain (0-3), general well-being (0-4, higher values mean worse well-being), and number of very soft or liquid stools were then summed. 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.
| percentage of participants | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg |
|---|---|---|
| CDAI <150 points: Week 2 | 0.0 | 7.7 |
| CDAI <150 points: Week 4 | 0.0 | 15.4 |
| CDAI <150 points: Week 8 | 20.0 | 30.8 |
| CDAI <150 points: Week 12 | 10.0 | 15.4 |
| CDAI <150 points: Week 14 | 0.0 | 16.7 |
| CDAI <150 points: Week 16 | 20.0 | 30.0 |
| CDAI <150 points: Week 20 | 11.1 | 37.5 |
| CDAI <150 points: Week 24 | 12.5 | 42.9 |
| CDAI <150 points: Week 28 | 100.0 | 42.9 |
| CDAI <150 points: Week 32 | 50.0 | 83.3 |
| CDAI <150 points: Week 36 | 25.0 | 33.3 |
| CDAI <150 points: Week 40 | 66.7 | 50.0 |
| CDAI <150 points: Week 44 | 33.3 | 60.0 |
| CDAI <150 points: Week 48 | 0.0 | 50.0 |
| CDAI <150 points: Week 52 | 33.3 | 66.7 |
| CDAI <150 points: Week 56 | — | 100.0 |
| CDAI <150 points: Week 60 | — | 50.0 |
| CDAI <150 points: Week 64 | — | 100.0 |
Patient reported outcome 2-clinical response 5 (PRO2-CR5) was defined as CR with a reduction of 5 or more points in PRO2 score from baseline. Patient reported outcome 2-clinical response 8 (PRO2-CR8) was defined as CR with a reduction of 8 or more points in PRO2 score from baseline. The PRO2 scale is a patient-reported outcome measure specifically used to assess the severity of Crohn's disease. It is derived from the CDAI and focuses on two main symptoms: abdominal pain and stool frequency. Participants rate their abdominal pain on a scale from 0 (none) to 3 (severe) and report the number of soft or liquid stools they have per day, which are then multiplied by a factor of 2 and 5, respectively. The scores from these two components are combined to give an overall PRO2 score ranging from 0 to no upper limit, with a higher score=worse outcome.
| percentage of participants | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg |
|---|---|---|
| >=5-point reduction: Week 2 | 25.0 | 38.5 |
| >=5-point reduction: Week 4 | 45.5 | 38.5 |
| >=5-point reduction: Week 8 | 60.0 | 53.8 |
| >=5-point reduction: Week 12 | 50.0 | 53.8 |
| >=5-point reduction: Week 14 | 25.0 | 50.0 |
| >=5-point reduction: Week 16 | 70.0 | 60.0 |
| >=5-point reduction: Week 20 | 77.8 | 75.0 |
| >=5-point reduction: Week 24 | 62.5 | 71.4 |
| >=5-point reduction: Week 28 | 100.0 | 85.7 |
| >=5-point reduction: Week 32 | 50.0 | 100.0 |
| >=5-point reduction: Week 36 | 75.0 | 83.3 |
| >=5-point reduction: Week 40 | 100.0 | 50.0 |
| >=5-point reduction: Week 44 | 100.0 | 60.0 |
| >=5-point reduction: Week 48 | 100.0 | 75.0 |
| >=5-point reduction: Week 52 | 100.0 | 66.7 |
| >=5-point reduction: Week 56 | — | 100.0 |
| >=5-point reduction: Week 60 | — | 100.0 |
| >=5-point reduction: Week 64 | — | 100.0 |
| >=8-point reduction: Week 2 | 16.7 | 15.4 |
| >=8-point reduction: Week 4 | 27.3 | 30.8 |
| >=8-point reduction: Week 8 | 40.0 | 30.8 |
| >=8-point reduction: Week 12 | 40.0 | 30.8 |
| >=8-point reduction: Week 14 | 25.0 | 16.7 |
| >=8-point reduction: Week 16 | 60.0 | 40.0 |
| >=8-point reduction: Week 20 | 55.6 | 62.5 |
| >=8-point reduction: Week 24 | 50.0 | 57.1 |
| >=8-point reduction: Week 28 | 100.0 | 57.1 |
| >=8-point reduction: Week 32 | 50.0 | 66.7 |
| >=8-point reduction: Week 36 | 75.0 | 33.3 |
| >=8-point reduction: Week 40 | 100.0 | 50.0 |
| >=8-point reduction: Week 44 | 100.0 | 60.0 |
| >=8-point reduction: Week 48 | 100.0 | 75.0 |
| >=8-point reduction: Week 52 | 66.7 | 66.7 |
| >=8-point reduction: Week 56 | — | 100.0 |
| >=8-point reduction: Week 60 | — | 50.0 |
| >=8-point reduction: Week 64 | — | 100.0 |
The PRO2 scale is a patient-reported outcome measure specifically used to assess the severity of Crohn's disease. It is derived from the CDAI and focuses on two main symptoms: abdominal pain and stool frequency. Participants rate their abdominal pain on a scale from 0 (none) to 3 (severe) and report the number of soft or liquid stools they have per day, which are then multiplied by a factor of 2 and 5, respectively. The scores from these two components are combined to give an overall PRO2 score ranging from 0 to no upper limit, with a higher score=worse outcome.
| percentage of participants | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg |
|---|---|---|
| PRO2 <8 points: Week 2 | 8.3 | 7.7 |
| PRO2 <8 points: Week 4 | 9.1 | 7.7 |
| PRO2 <8 points: Week 8 | 20.0 | 23.1 |
| PRO2 <8 points: Week 12 | 10.0 | 15.4 |
| PRO2 <8 points: Week 14 | 0.0 | 16.7 |
| PRO2 <8 points: Week 16 | 10.0 | 30.0 |
| PRO2 <8 points: Week 20 | 0.0 | 37.5 |
| PRO2 <8 points: Week 24 | 12.5 | 28.6 |
| PRO2 <8 points: Week 28 | 25.0 | 14.3 |
| PRO2 <8 points: Week 32 | 25.0 | 33.3 |
| PRO2 <8 points: Week 36 | 0.0 | 16.7 |
| PRO2 <8 points: Week 40 | 33.3 | 25.0 |
| PRO2 <8 points: Week 44 | 0.0 | 40.0 |
| PRO2 <8 points: Week 48 | 0.0 | 50.0 |
| PRO2 <8 points: Week 52 | 33.3 | 66.7 |
| PRO2 <8 points: Week 56 | — | 100.0 |
| PRO2 <8 points: Week 60 | — | 50.0 |
| PRO2 <8 points: Week 64 | — | 100.0 |
Endoscopic response was defined as a improvement in SES-CD of at least 50% from baseline. 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: terminal 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 severity of disease.
| percentage of participants | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg |
|---|---|---|
| Percentage of Participants With at Least 50 Percent (%) Improvement in (Endoscopic Response) Simple Endoscopic Score for Crohn's Disease (SES-CD) Score at Week 12 | 8.3 (0.2 to 38.5) | 15.4 (1.9 to 45.4) |
Endoscopic remission was defined as 2 or less points on SES-CD. The SES-CD assesses following 4 components: size of ulcers, ulcerated surface, affected surface, and presence of narrowing. Each of these components was scored on scale of 0 (none/unaffected) to 3 (worst). In SES-CD, each of these 4 components are assessed in 5 segments: terminal 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 severity of disease.
| percentage of participants | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg |
|---|---|---|
| Percentage of Participants With Less Than or Equal to (<=) 2 (Endoscopic Remission) SES-CD Score at Week 12 | 8.3 (0.2 to 38.5) | 0.0 (0.0 to 24.7) |
The CDAI system was a composite index of 8 disease activity variables: severity of abdominal pain, general well-being, very soft/liquid stool frequency, extra-intestinal symptoms, need for antidiarrheal drugs, presence of an abdominal mass, body weight and hematocrit. The sub scores of abdominal pain (0-3), general well-being (0-4, higher values mean worse well-being), and number of very soft or liquid stools were then summed. 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.
| score on a scale | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg |
|---|---|---|
| Change at Week 2 | -38.0 ± 96.1 | -50.3 ± 56.7 |
| Change at Week 4 | -60.5 ± 102.7 | -64.5 ± 91.0 |
| Change at Week 8 | -92.8 ± 109.8 | -70.5 ± 113.3 |
| Change at Week 12 | -92.4 ± 109.0 | -69.6 ± 107.0 |
| Change at Week 14 | -22.0 ± 78.1 | -25.8 ± 100.8 |
| Change at Week 16 | -102.8 ± 95.2 | -89.3 ± 120.1 |
| Change at Week 20 | -115.4 ± 66.1 | -119.1 ± 136.4 |
| Change at Week 24 | -115.5 ± 90.1 | -100.0 ± 120.3 |
| Change at Week 28 | -160.7 ± 28.1 | -153.1 ± 93.5 |
| Change at Week 32 | -97.3 ± 95.1 | -183.7 ± 79.1 |
| Change at Week 36 | -136.0 ± 44.2 | -143.0 ± 109.8 |
| Change at Week 40 | -173.7 ± 49.0 | -157.0 ± 84.0 |
| Change at Week 44 | -147.3 ± 75.8 | -185.2 ± 102.9 |
| Change at Week 48 | -127.3 ± 56.1 | -209.8 ± 99.2 |
| Change at Week 52 | -103.7 ± 102.8 | -171.3 ± 162.4 |
| Change at Week 56 | — | -211.0 ± NA |
| Change at Week 60 | — | -145.0 ± 97.6 |
| Change at Week 64 | — | -240.0 ± NA |
The CDAI system was a composite index of 8 disease activity variables: severity of abdominal pain, general well-being, very soft/liquid stool frequency, extra-intestinal symptoms, need for antidiarrheal drugs, presence of an abdominal mass, body weight and hematocrit. The sub scores of abdominal pain (0-3), general well-being (0-4, higher values mean worse well-being), and number of very soft or liquid stools were then summed. 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.
| percent change | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg |
|---|---|---|
| Percent Change at Week 2 | -8.9 ± 24.6 | -16.7 ± 21.1 |
| Percent Change at Week 4 | -16.0 ± 26.1 | -20.6 ± 26.6 |
| Percent Change at Week 8 | -25.8 ± 27.7 | -23.1 ± 37.1 |
| Percent Change at Week 12 | -25.3 ± 27.1 | -21.8 ± 33.9 |
| Percent Change at Week 14 | -8.3 ± 28.4 | -9.3 ± 36.6 |
| Percent Change at Week 16 | -29.3 ± 23.6 | -27.5 ± 37.0 |
| Percent Change at Week 20 | -34.5 ± 17.5 | -36.6 ± 45.4 |
| Percent Change at Week 24 | -34.8 ± 25.3 | -32.6 ± 44.1 |
| Percent Change at Week 28 | -53.6 ± 3.4 | -48.3 ± 26.2 |
| Percent Change at Week 32 | -31.4 ± 29.3 | -60.1 ± 28.3 |
| Percent Change at Week 36 | -43.3 ± 10.3 | -43.5 ± 30.2 |
| Percent Change at Week 40 | -53.9 ± 15.7 | -50.2 ± 23.7 |
| Percent Change at Week 44 | -45.7 ± 23.1 | -56.8 ± 27.1 |
| Percent Change at Week 48 | -39.6 ± 17.8 | -63.7 ± 25.5 |
| Percent Change at Week 52 | -33.0 ± 32.4 | -53.8 ± 48.2 |
| Percent Change at Week 56 | — | -77.0 ± NA |
| Percent Change at Week 60 | — | -51.9 ± 37.1 |
| Percent Change at Week 64 | — | -87.6 ± NA |
The PRO2 scale is a patient-reported outcome measure specifically used to assess the severity of Crohn's disease. It is derived from the CDAI and focuses on two main symptoms: abdominal pain and stool frequency. Participants rate their abdominal pain on a scale from 0 (none) to 3 (severe) and report the number of soft or liquid stools they have per day, which are then multiplied by a factor of 2 and 5, respectively. The scores from these two components are combined to give an overall PRO2 score ranging from 0 to no upper limit, with a higher score=worse outcome.
| score on a scale | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg |
|---|---|---|
| Change at Week 2 | -3.1 ± 6.5 | -4.3 ± 4.0 |
| Change at Week 4 | -5.3 ± 6.6 | -4.9 ± 6.5 |
| Change at Week 8 | -6.9 ± 7.3 | -5.8 ± 7.1 |
| Change at Week 12 | -6.5 ± 6.2 | -5.5 ± 6.7 |
| Change at Week 14 | -3.0 ± 6.7 | -2.7 ± 5.4 |
| Change at Week 16 | -8.1 ± 5.7 | -6.1 ± 7.6 |
| Change at Week 20 | -7.9 ± 4.2 | -8.3 ± 9.2 |
| Change at Week 24 | -6.5 ± 6.4 | -6.9 ± 7.4 |
| Change at Week 28 | -9.0 ± 1.0 | -9.6 ± 5.7 |
| Change at Week 32 | -5.5 ± 6.1 | -12.0 ± 6.2 |
| Change at Week 36 | -9.0 ± 7.0 | -9.0 ± 6.1 |
| Change at Week 40 | -13.0 ± 1.7 | -6.3 ± 6.8 |
| Change at Week 44 | -11.0 ± 2.0 | -9.4 ± 7.7 |
| Change at Week 48 | -8.7 ± 0.6 | -11.8 ± 6.6 |
| Change at Week 52 | -8.3 ± 3.1 | -11.0 ± 8.5 |
| Change at Week 56 | — | -13.0 ± NA |
| Change at Week 60 | — | -9.5 ± 6.4 |
| Change at Week 64 | — | -15.0 ± NA |
The PRO2 scale is a patient-reported outcome measure specifically used to assess the severity of Crohn's disease. It is derived from the CDAI and focuses on two main symptoms: abdominal pain and stool frequency. Participants rate their abdominal pain on a scale from 0 (none) to 3 (severe) and report the number of soft or liquid stools they have per day, which are then multiplied by a factor of 2 and 5, respectively. The scores from these two components are combined to give an overall PRO2 score ranging from 0 to no upper limit, with a higher score=worse outcome.
| percent change | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg |
|---|---|---|
| Percent Change at Week 2 | -13.5 ± 31.3 | -20.9 ± 20.0 |
| Percent Change at Week 4 | -23.0 ± 29.8 | -22.9 ± 28.4 |
| Percent Change at Week 8 | -30.1 ± 33.0 | -29.2 ± 34.6 |
| Percent Change at Week 12 | -29.4 ± 28.0 | -25.8 ± 31.0 |
| Percent Change at Week 14 | -13.4 ± 28.6 | -17.6 ± 32.7 |
| Percent Change at Week 16 | -36.8 ± 25.0 | -27.9 ± 34.4 |
| Percent Change at Week 20 | -36.2 ± 16.8 | -37.6 ± 46.7 |
| Percent Change at Week 24 | -30.0 ± 28.0 | -35.9 ± 41.1 |
| Percent Change at Week 28 | -47.7 ± 9.2 | -46.2 ± 23.7 |
| Percent Change at Week 32 | -25.1 ± 32.7 | -58.3 ± 30.3 |
| Percent Change at Week 36 | -37.1 ± 25.5 | -42.9 ± 24.6 |
| Percent Change at Week 40 | -56.4 ± 14.3 | -31.2 ± 32.6 |
| Percent Change at Week 44 | -46.9 ± 9.1 | -45.3 ± 32.5 |
| Percent Change at Week 48 | -37.3 ± 7.2 | -57.2 ± 26.7 |
| Percent Change at Week 52 | -38.4 ± 22.2 | -56.1 ± 34.6 |
| Percent Change at Week 56 | — | -81.3 ± NA |
| Percent Change at Week 60 | — | -59.4 ± 39.8 |
| Percent Change at Week 64 | — | -93.8 ± NA |
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: terminal 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 severity of disease.
| score on a scale | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg |
|---|---|---|
| Change From Baseline in SES-CD Score at Week 12 | 1.4 ± 4.9 | -3.5 ± 4.9 |
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: terminal 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 severity of disease.
| percent change | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg |
|---|---|---|
| Percent Change From Baseline in SES-CD Score at Week 12 | -0.3 ± 45.6 | -19.2 ± 33.2 |
Steroid-free remission was defined as clinical remission (CDAI remission or PRO2-remission) in participants who became steroid free through steroid reduction. CDAI remission was defined as CDAI score below 150 points. PRO2-remission was defined as PRO2- score less than 8-points. The CDAI system was a composite index of 8 disease activity variables: severity of abdominal pain, general well-being, very soft/liquid stool frequency, extra-intestinal symptoms, need for antidiarrheal drugs, presence of an abdominal mass, body weight and hematocrit. The total CDAI score ranged from 0-600 with a higher score indicating a worse outcome. Participants for PRO2 scale rate their abdominal pain on scale from 0 (none) to 3 (severe) and report the number of soft or liquid stools they have per day, which are then multiplied by a factor of 2 and 5, respectively. Scores from two components combined to give overall score ranging from 0 to no upper limit, with higher score=worse outcome.
| percentage of participants | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg |
|---|---|---|
| Percentage of Participants Who Achieved Steroid-free Remission up to Week 64 | 0 | 0 |
Steroid-free clinical improvement = clinical response (CR70 response, CR100 response, PRO2-CR5 and PRO2-CR8 responses) in participants who became steroid free through steroid reduction. CR70 and CR100 = clinical response with decrease of \>=70 point and \>=100 point from baseline, respectively in CDAI. PRO2-CR5 and PRO2-CR8 = clinical response with decrease of \>=5 point and \>=8 point from baseline, respectively in PRO2. CDAI system was composite index of 8 disease activity variables. Total CDAI score ranged 0-600; higher score = worse outcome. Participants for PRO2 scale rate their abdominal pain on scale from 0 (none) to 3 (severe); report number of soft or liquid stools they have per day, which are multiplied by factor of 2 and 5, respectively. The scores from these two components are combined to give an overall PRO2 score ranging from 0 to no upper limit, with a higher score=worse outcome.
| percentage of participants | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg |
|---|---|---|
| Percentage of Participants Who Achieved Steroid-free Improvement up to Week 64 | 0 | 0 |
Change from baseline in steroid dosage in participants concomitantly using adrenocorticosteroids up to Week 64 was reported.
| milligram per day (mg/day) | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg |
|---|---|---|
| Change From Baseline in Steroid Dosage in Participants Concomitantly Using Adrenocorticosteroids up to Week 64 | 0 ± 0 | 0 ± 0 |
Percent change from baseline in steroid dosage in participants concomitantly using adrenocorticosteroids up to Week 64 was reported.
| percent change | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg |
|---|---|---|
| Percent Change From Baseline in Steroid Dosage in Participants Concomitantly Using Adrenocorticosteroids up to Week 64 | 0 ± 0 | 0 ± 0 |
Collected over Remission induction period: From the first dose of the study drug (Week 0) up to Week 12; Rescue period: From Week 12 up to Week 24; Extension period: Week 12 up to Week 64; Post-observation period: Up to 70 days after last dose of study drug. Non-serious events are listed at a 0% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Remission Induction Period: E6011 10 mg/kg | 0/12 (0%) | 0/12 (0%) | 6/12 (50%) |
| Remission Induction Period: Placebo | 0/13 (0%) | 1/13 (7.7%) | 5/13 (38.5%) |
| Rescue Period: E6011 10 mg/kg | 0/5 (0%) | 0/5 (0%) | 3/5 (60%) |
| Rescue Period: Placebo to E6011 10 mg/kg | 0/7 (0%) | 2/7 (28.6%) | 4/7 (57.1%) |
| Extension Period: E6011 10 mg/kg | 0/7 (0%) | 0/7 (0%) | 1/7 (14.3%) |
| Extension Period: Placebo to E6011 10 mg/kg | 0/8 (0%) | 0/8 (0%) | 5/8 (62.5%) |
| Post-observation Period: E6011 10 mg/kg | 0/12 (0%) | 0/12 (0%) | 2/12 (16.7%) |
| Post-observation Period: Placebo to E6011 10 mg/kg | 0/13 (0%) | 1/13 (7.7%) | 1/13 (7.7%) |
| Event | Remission Induction Period: E6011 10 mg/kg | Remission Induction Period: Placebo | Rescue Period: E6011 10 mg/kg | Rescue Period: Placebo to E6011 10 mg/kg | Extension Period: E6011 10 mg/kg | Extension Period: Placebo to E6011 10 mg/kg | Post-observation Period: E6011 10 mg/kg | Post-observation Period: Placebo to E6011 10 mg/kg |
|---|---|---|---|---|---|---|---|---|
| Crohn's DiseaseGastrointestinal disorders | 0/12 | 0/13 | 0/5 | 1/7 | 0/7 | 0/8 | 0/12 | 1/13 |
| Lower Gastrointestinal HaemorrhageGastrointestinal disorders | 0/12 | 0/13 | 0/5 | 1/7 | 0/7 | 0/8 | 0/12 | 0/13 |
| HypokalaemiaMetabolism and nutrition disorders | 0/12 | 1/13 | 0/5 | 0/7 | 0/7 | 0/8 | 0/12 | 0/13 |
| Event | Remission Induction Period: E6011 10 mg/kg | Remission Induction Period: Placebo | Rescue Period: E6011 10 mg/kg | Rescue Period: Placebo to E6011 10 mg/kg | Extension Period: E6011 10 mg/kg | Extension Period: Placebo to E6011 10 mg/kg | Post-observation Period: E6011 10 mg/kg | Post-observation Period: Placebo to E6011 10 mg/kg |
|---|---|---|---|---|---|---|---|---|
| PyrexiaGeneral disorders | 1/12 | 0/13 | 1/5 | 2/7 | 0/7 | 0/8 | 0/12 | 0/13 |
| Muscle SpasmsMusculoskeletal and connective tissue disorders | 0/12 | 0/13 | 1/5 | 0/7 | 0/7 | 0/8 | 0/12 | 0/13 |
| DysuriaRenal and urinary disorders | 0/12 | 0/13 | 1/5 | 0/7 | 0/7 | 0/8 | 0/12 | 0/13 |
| Blood Creatine Phosphokinase IncreasedInvestigations | 0/12 | 0/13 | 1/5 | 0/7 | 0/7 | 0/8 | 0/12 | 0/13 |
| Covid-19Infections and infestations | 1/12 | 0/13 | 0/5 | 1/7 | 0/7 | 0/8 | 0/12 | 0/13 |
| Upper Respiratory Tract InfectionInfections and infestations | 0/12 | 0/13 | 0/5 | 1/7 | 0/7 | 1/8 | 0/12 | 0/13 |
| Weight DecreasedInvestigations | 0/12 | 0/13 | 0/5 | 1/7 | 0/7 | 0/8 | 0/12 | 0/13 |
| Immunisation ReactionImmune system disorders | 0/12 | 0/13 | 0/5 | 0/7 | 1/7 | 0/8 | 1/12 | 0/13 |
| ConjunctivitisInfections and infestations | 0/12 | 0/13 | 0/5 | 0/7 | 0/7 | 1/8 | 0/12 | 0/13 |
| Respiratory Tract InfectionInfections and infestations | 0/12 | 0/13 | 0/5 | 0/7 | 0/7 | 1/8 | 0/12 | 0/13 |
The full analysis set (FAS) included participants to whom the investigational medicinal product (IMP) has been administered after randomization, and who had 1 or more evaluable, post-IMP administration primary efficacy endpoint (that is, to have an evaluable CDAI value at baseline and any other post baseline).
| Age, Continuous(years) | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg | Total |
|---|---|---|---|
| Mean | 29.8 ± 8.7 | 33.2 ± 12.0 | 31.5 ± 10.5 |
| Sex: Female, Male(Participants) | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg | Total |
|---|---|---|---|
| Female | 2 | 5 | 7 |
| Male | 10 | 8 | 18 |
| Ethnicity (NIH/OMB)(Participants) | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg | Total |
|---|---|---|---|
| Hispanic or Latino | 0 | 0 | 0 |
| Not Hispanic or Latino | 12 | 13 | 25 |
| Unknown or Not Reported | 0 | 0 | 0 |
| Race (NIH/OMB)(Participants) | E6011 10 mg/kg | Placebo Then E6011 10 mg/kg | Total |
|---|---|---|---|
| American Indian or Alaska Native | 0 | 0 | 0 |
| Asian | 11 | 9 | 20 |
| Native Hawaiian or Other Pacific Islander | 0 | 0 | 0 |
| Black or African American | 0 | 0 | 0 |
| White | 1 | 4 | 5 |
| More than one race | 0 | 0 | 0 |
| Unknown or Not Reported | 0 | 0 | 0 |
PDFs hosted by the registry, ClinicalTrials.gov.
Plan to share: Yes — Eisai's data sharing commitment and further information on how to request data can be found on our website http://eisaiclinicaltrials.com/.
Ran from Apr 2019 to primary completion in Mar 2022, 34 months.
Results were first posted in Apr 2025, 3 years after primary completion.
Of 55 industry-sponsored phase 2 interventional studies under Crohn Disease, half reached primary completion within 33 months of starting (the median), counting those still running; a quarter within 20 and three quarters within 45. This study's 34 months is close to that.
Counting every sponsor, half of 82 studies reached it within 34 months; a quarter within 23 and three quarters within 51.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Apr 2025. You cannot join it, but the record below documents what was studied.
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Studies of the drug tested here: Quetmolimab