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Efficacy and Safety Study of Mongersen (GED-0301) for the Treatment of Subjects With Active Crohn's Disease

A Phase 3, Randomized, Double-blind, Placebo-controlled, Multicenter Study to Investigate the Efficacy and Safety of Mongersen (GED-0301) for the Treatment of Subjects With Active Crohn's Disease

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02596893
Enrollment
701
Registered
2015-11-04
Start date
2015-12-08
Completion date
2018-01-05
Last updated
2019-08-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Crohn Disease

Keywords

Crohn's Disease, GED-0301, Mongersen, IBD, Safety, Efficacy

Brief summary

The purpose of study is to test the effects of an experimental medication GED-0301 (mongersen) in patients who have active Crohn's disease. The study will test GED-0301 compared to placebo for 52 weeks. The study treatment is blinded which means that patients and the study doctor will not know which treatment has been assigned. Patients in this study will be allowed treatment with stable doses of oral aminosalicylates, oral corticosteroids, immunosupressants and antibiotics for the treatment of Crohn's disease. After 12 weeks in the study until the end of the study, patients who do not have an improvement in their Crohns disease symptoms will have the option to enter a long term active treatment study. Participants who discontinued the study anytime or completed the study at Week 52 were then observed for an additional 4 weeks.

Interventions

DRUGPlacebo

Sponsors

Celgene
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Subjects must satisfy the following criteria to be enrolled in the study: * Male or female ≥ 18 years * Active Crohn's disease (CD) disease as determined by the Crohn's Disease Activity Index (CDAI) score and the Simple Endoscopic Score for Crohn's Disease (SES-CD) * Must meet a determined average minimum number of daily stools or rating of abdominal pain over a 7 day period * Subject must have failed or experienced intolerance to at least one of the following: budesonide; systemic corticosteroids; immunosuppressants (eg, azathiopurine, 6-mercaptopurine, or methotrexate); or biologics for the treatment of CD.

Exclusion criteria

The presence of any of the following will exclude a subject from enrollment: * Diagnosis of ulcerative colitis (UC), indeterminate colitis, ischemic colitis, microscopic colitis, radiation colitis or diverticular disease-associated colitis * Local manifestations of Crohn's Disease (CD) such as symptomatic/severe strictures, abscesses, short bowel syndrome; or other disease complications for which surgery might be indicated or could confound the evaluation of efficacy * Intestinal resection within 6 months or any intra-abdominal surgery within 3 months prior to the Screening Visit * Ileostomy or a colostomy * Subject has a history of any clinically significant medical condition that, in the investigator's opinion, would prevent the subject from participating in the study.

Design outcomes

Primary

MeasureTime frameDescription
The Percentage of Participants Who Achieved a Clinical Remission at Week 12Week 12Clinical remission is defined as a Crohn's Disease Activity Index (CDAI) score \< 150. The Crohn's Disease Activity Index is used to quantify the signs and symptoms of Crohn's disease and the affect on patient's quality of life. It consists of 8 variables which include patient reported outcomes over a 7 day period and physician assessments which are scored numerically and weighted. Scores range from 0 to 600, with the most severe disease defined \>450.

Secondary

MeasureTime frameDescription
Percentage of Participants With Endoscopic Response-50 Centrally Read at Week 52Week 52An endoscopic response-50 is defined as a reduction of at least 50% compared with baseline in simple endoscopic score for Crohn's Disease (SES-CD). The SES-CD assesses the size of mucosal ulcers, the extent of ulcerated surface, the extent of affected surface, and the presence and type of narrowings. Scores range from 0 to 60 with higher scores reflecting more severe disease. The SES-CD calculations include: * Ulcers scored as: 0: no 1. aphthous (0.1-0.5 cm) 2. large (0.5-2 cm) 3. very large (\>2 cm) * Surface involved disease 0: 0% 1. \<50% 2. 50-75% 3. \>75% Surface involved by ulcerations: 0: 0% 1. \<10% 2. 10-30% 3. \>30% - Narrowings: 0: No 1. Single, can be passed 2. Multiple, can be passed 3. Cannot be passed Grand Total = SES-CD score
The Percentage of Participants Who Achieved a Clinical Response at Week 12Week 12A clinical response is defined as a CDAI score decrease from baseline ≥ 100 points. The CDAI is used to quantify the signs and symptoms of Crohn's disease and the effect on patient's quality of life. It consists of 8 variables which include patient reported outcomes over a 7 day period and physician assessments which are scored numerically and weighted. Scores range from 0 to 600, with the most severe disease defined \>450.
The Percentage of Participants Who Achieved a Clinical Response at Week 4Week 4A clinical response is defined as a decrease from baseline in CDAI ≥ 100 points. The Crohn's Disease Activity Index is used to quantify the signs and symptoms of Crohn's disease and the effect on patient's quality of life. It consists of 8 variables which include patient reported outcomes over a 7 day period and physician assessments which are scored numerically and weighted. Scores range from 0 to 600, with the most severe disease defined \>450.
The Percentage of Participants Who Achieved a Clinical Remission at Week 4Week 4A clinical remission is a CDAI score \< 150. The Crohn's Disease Activity Index is used to quantify the signs and symptoms of Crohn's disease and the effect on patient's quality of life. It consists of 8 variables which include patient reported outcomes over a 7 day period and physician assessments which are scored numerically and weighted. Scores range from 0 to 600, with the most severe disease defined \>450.
The Percentage of Participants Who Achieved a Corticosteroid-Free Clinical Remission at Week 52Week 52The percentage of participants who were receiving oral corticosteroids for Crohn's disease, at baseline and achieved a clinical remission (CDAI score \<150) at Week 52 without corticosteroids. The Crohn's Disease Activity Index is used to quantify the signs and symptoms of Crohn's disease and the effect on patient's quality of life. It consists of 8 variables which include patient reported outcomes over a 7 day period and physician assessments which are scored numerically and weighted. Scores range from 0 to 600, with the most severe disease defined \>450.
Percentage of Participants Who Achieved Clinical Remission at Week 52Week 52Clinical remission is defined as a CDAI score \< 150 and is used to quantify the signs and symptoms of Crohn's disease and the effect on patient's quality of life. It consists of 8 variables which include patient reported outcomes over a 7 day period and physician assessments which are scored numerically and weighted. Scores range from 0 to 600, with the most severe disease defined \>450.
Percentage of Participants With Endoscopic Response-25 Centrally Read at Week 12Week 0, Week 12An endoscopic response-25 is defined as a reduction of at least 25% compared with baseline in simple endoscopic score for Crohn's disease (SES-CD). The SES-CD assesses the size of mucosal ulcers, the extent of ulcerated surface, the extent of affected surface, and the presence and type of narrowings. Scores range from 0 to 60 with higher scores reflecting more severe disease. The SES-CD calculations include: * Ulcers scored as: 0: no 1. aphthous (0.1-0.5 cm) 2. large (0.5-2 cm) 3. very large (\>2 cm) * Surface involved disease 0: 0% 1. \<50% 2. 50-75% 3. \>75% Surface involved by ulcerations: 0: 0% 1. \<10% 2. 10-30% 3. \>30% - Narrowings: 0: No 1. Single, can be passed 2. Multiple, can be passed 3. Cannot be passed Grand Total = SES-CD score
Percentage of Participants With Endoscopic Remission Centrally Read at Week 52Week 52Endoscopic remission is defined as a simple endoscopic score for Crohn's disease (SES-CD) of ≤2 at the specified timeframe. The SES-CD assesses the size of mucosal ulcers, the extent of ulcerated surface, the extent of affected surface, and the presence and type of narrowings. Scores range from 0 to 60 with higher scores reflecting more severe disease. The SES-CD calculations include: * Ulcers scored as: 0: no 1. aphthous (0.1-0.5 cm) 2. large (0.5-2 cm) 3. very large (\>2 cm) * Surface involved disease 0: 0% 1. \<50% 2. 50-75% 3. \>75% Surface involved by ulcerations: 0: 0% 1. \<10% 2. 10-30% 3. \>30% - Narrowings: 0: No 1. Single, can be passed 2. Multiple, can be passed 3. Cannot be passed Grand Total = SES-CD score
The Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52From the first day of GED-0301 until 28 days after the last dose of investigational product (IP); maximum treatment duration was 52.6 weeksA TEAE was defined as any adverse event (AE) occurring or worsening on or after the first treatment of GED-0301 and up to 28 days after the last GED-0301 dose or the last follow-up date, whichever occurred earlier. A serious AE = any AE which results in death; is life-threatening; requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; constitutes an important medical event.
The Number of Participants Who Discontinued IP Due to an Treatment Emergent Adverse EventsFrom the first day of GED-0301 until 28 days after the last dose of IP; maximum treatment duration was 52.6 weeksA TEAE was defined as any AE occurring or worsening on or after the first dose of GED-0301 and up to 28 days after the last GED-0301 dose or the last follow-up date, whichever occurred earlier. A serious AE = any AE which results in death; is life-threatening; requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; constitutes an important medical event. The severity of AEs was assessed by the investigator and based on the following scale: Mild = asymptomatic or mild symptoms; clinical or diagnostic observations only; Moderate = Symptoms cause moderate discomfort; Severe (could be non-serious or serious) = symptoms causing severe discomfort/pain.
Percentage of Participants Who Achieved a Sustained Clinical Remission at Both Week 12 and 52Weeks 12 and 52For participants who achieved a sustained clinical remission at both week 12 and 52, the clinical remission is a CDAI score \< 150. The Crohn's Disease Activity Index is used to quantify the signs and symptoms of Crohn's disease and the effect on patient's quality of life. It consists of 8 variables which include patient reported outcomes over a 7 day period and physician assessments which are scored numerically and weighted. Scores range from 0 to 600, with the most severe disease defined \>450.

Countries

Australia, Austria, Belgium, Bulgaria, Canada, Croatia, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Israel, Italy, Latvia, Malaysia, Netherlands, New Zealand, Norway, Poland, Portugal, Romania, Russia, Serbia, Slovakia, South Korea, Spain, Sweden, Switzerland, Turkey (Türkiye), Ukraine, United Kingdom, United States

Participant flow

Recruitment details

Participants were enrolled at study centers within the United States and Canada, Australia, Eastern and Western Europe, Korea and Russia.

Pre-assignment details

Treatment assignment at baseline (Week 0) was stratified based on concomitant use of corticosteroids (yes/no), concomitant use of immunosuppressants (yes/no) or and previous exposure to biologics (yes/no),

Participants by arm

ArmCount
Placebo
Participants received placebo daily up to week 52.
174
GED-0301 160 mg / GED-0301 40 mg 4 Week Alt
Participants received GED-0301 160 mg daily for 12 weeks, followed by alternating placebo daily for 4 weeks and GED-0301 40 mg daily for 4 weeks, up to week 52.
176
GED-0301 160 mg / GED-0301 40 mg
Participants received GED-0301 160 mg daily for 12 weeks, followed by continuous GED-0301 40 mg daily, up to week 52.
176
GED-0301 160 mg / GED-0301 160 mg 4 Week Alt
Participants received GED-0301 160 mg daily for 12 weeks, followed by alternating placebo daily for 4 weeks and GED-0301 160 mg daily for 4 weeks, up to week 52.
175
Total701

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall Double-Blind Period Weeks 0-52Adverse Event11151512
Overall Double-Blind Period Weeks 0-52Death0010
Overall Double-Blind Period Weeks 0-52Early Escape66766970
Overall Double-Blind Period Weeks 0-52Lack of Efficacy15141413
Overall Double-Blind Period Weeks 0-52Lost to Follow-up0111
Overall Double-Blind Period Weeks 0-52Miscellaneous1202
Overall Double-Blind Period Weeks 0-52Non-Compliance with Study Drug0012
Overall Double-Blind Period Weeks 0-52Pregnancy0001
Overall Double-Blind Period Weeks 0-52Protocol Violation0002
Overall Double-Blind Period Weeks 0-52Study Terminated by Sponsor61564858
Overall Double-Blind Period Weeks 0-52Withdrawal by Subject104135

Baseline characteristics

CharacteristicTotalGED-0301 160 mg / GED-0301 160 mg 4 Week AltGED-0301 160 mg / GED-0301 40 mgGED-0301 160 mg / GED-0301 40 mg 4 Week AltPlacebo
Age, Continuous38.5 Years
STANDARD_DEVIATION 12.77
38.2 Years
STANDARD_DEVIATION 12.47
39.6 Years
STANDARD_DEVIATION 12.9
37.6 Years
STANDARD_DEVIATION 12.84
38.5 Years
STANDARD_DEVIATION 12.88
Baseline Crohn's Disease Activity (CDAI) Score304.7 Units on a Scale
STANDARD_DEVIATION 66.61
309.9 Units on a Scale
STANDARD_DEVIATION 66.32
308.3 Units on a Scale
STANDARD_DEVIATION 65.5
292.8 Units on a Scale
STANDARD_DEVIATION 69.33
307.9 Units on a Scale
STANDARD_DEVIATION 64.31
Baseline Endoscopic Score for Crohn's Disease (Central Read)14.2 Units on a Scale
STANDARD_DEVIATION 8.06
14.5 Units on a Scale
STANDARD_DEVIATION 8.3
13.8 Units on a Scale
STANDARD_DEVIATION 7.69
14.3 Units on a Scale
STANDARD_DEVIATION 8.41
14.4 Units on a Scale
STANDARD_DEVIATION 7.88
Duration of Crohn's Disease9.54 Years
STANDARD_DEVIATION 8.786
10.15 Years
STANDARD_DEVIATION 9.353
9.84 Years
STANDARD_DEVIATION 8.746
8.63 Years
STANDARD_DEVIATION 7.877
9.57 Years
STANDARD_DEVIATION 9.106
Race/Ethnicity, Customized
American Indian or Alaska Native
2 Participants0 Participants1 Participants0 Participants1 Participants
Race/Ethnicity, Customized
Asian
29 Participants8 Participants8 Participants2 Participants11 Participants
Race/Ethnicity, Customized
Black or African American
12 Participants2 Participants2 Participants4 Participants4 Participants
Race/Ethnicity, Customized
Not Collected or Reported
23 Participants5 Participants9 Participants4 Participants5 Participants
Race/Ethnicity, Customized
Other (No classification)
10 Participants2 Participants4 Participants1 Participants3 Participants
Race/Ethnicity, Customized
White
625 Participants158 Participants152 Participants165 Participants150 Participants
Sex: Female, Male
Female
346 Participants80 Participants92 Participants98 Participants76 Participants
Sex: Female, Male
Male
355 Participants95 Participants84 Participants78 Participants98 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 1740 / 1761 / 1761 / 175
other
Total, other adverse events
78 / 17472 / 17674 / 17663 / 175
serious
Total, serious adverse events
16 / 17428 / 17622 / 17615 / 175

Outcome results

Primary

The Percentage of Participants Who Achieved a Clinical Remission at Week 12

Clinical remission is defined as a Crohn's Disease Activity Index (CDAI) score \< 150. The Crohn's Disease Activity Index is used to quantify the signs and symptoms of Crohn's disease and the affect on patient's quality of life. It consists of 8 variables which include patient reported outcomes over a 7 day period and physician assessments which are scored numerically and weighted. Scores range from 0 to 600, with the most severe disease defined \>450.

Time frame: Week 12

Population: ITT population; includes participants who had either completed that timepoint visit or discontinued at any time due to reasons other than study terminated by sponsor; the Non-responder Imputation (NRI)

ArmMeasureValue (NUMBER)
PlaceboThe Percentage of Participants Who Achieved a Clinical Remission at Week 1225.0 Percentage of Participants
GED-0301 160 mg / GED-0301 40 mg 4 Week AltThe Percentage of Participants Who Achieved a Clinical Remission at Week 1225.3 Percentage of Participants
GED-0301 160 mg / GED-0301 40 mgThe Percentage of Participants Who Achieved a Clinical Remission at Week 1221.3 Percentage of Participants
GED-0301 160 mg / GED-0301 160 mg 4 Week AltThe Percentage of Participants Who Achieved a Clinical Remission at Week 1221.7 Percentage of Participants
p-value: 0.914195% CI: [-8.9, 10]Cochran-Mantel-Haenszel
p-value: 0.428695% CI: [-12.8, 5.6]Cochran-Mantel-Haenszel
p-value: 0.559195% CI: [-12, 6.6]Cochran-Mantel-Haenszel
Secondary

Percentage of Participants Who Achieved a Sustained Clinical Remission at Both Week 12 and 52

For participants who achieved a sustained clinical remission at both week 12 and 52, the clinical remission is a CDAI score \< 150. The Crohn's Disease Activity Index is used to quantify the signs and symptoms of Crohn's disease and the effect on patient's quality of life. It consists of 8 variables which include patient reported outcomes over a 7 day period and physician assessments which are scored numerically and weighted. Scores range from 0 to 600, with the most severe disease defined \>450.

Time frame: Weeks 12 and 52

Population: ITT population; includes participants who had either completed that timepoint visit or discontinued at any time due to reasons other than study terminated by sponsor. NRI.

ArmMeasureValue (NUMBER)
PlaceboPercentage of Participants Who Achieved a Sustained Clinical Remission at Both Week 12 and 522.7 percentage of participants
GED-0301 160 mg / GED-0301 40 mg 4 Week AltPercentage of Participants Who Achieved a Sustained Clinical Remission at Both Week 12 and 522.5 percentage of participants
GED-0301 160 mg / GED-0301 40 mgPercentage of Participants Who Achieved a Sustained Clinical Remission at Both Week 12 and 523.9 percentage of participants
GED-0301 160 mg / GED-0301 160 mg 4 Week AltPercentage of Participants Who Achieved a Sustained Clinical Remission at Both Week 12 and 521.7 percentage of participants
p-value: 0.803195% CI: [-6.7, 5.9]Cochran-Mantel-Haenszel
p-value: 0.558395% CI: [-5.1, 7.3]Cochran-Mantel-Haenszel
p-value: 0.612395% CI: [-7.2, 6.8]Cochran-Mantel-Haenszel
Secondary

Percentage of Participants Who Achieved Clinical Remission at Week 52

Clinical remission is defined as a CDAI score \< 150 and is used to quantify the signs and symptoms of Crohn's disease and the effect on patient's quality of life. It consists of 8 variables which include patient reported outcomes over a 7 day period and physician assessments which are scored numerically and weighted. Scores range from 0 to 600, with the most severe disease defined \>450.

Time frame: Week 52

Population: ITT population; Includes participants who had either completed that timepoint visit or discontinued at any time due to reasons other than study terminated by sponsor. NRI.

ArmMeasureValue (NUMBER)
PlaceboPercentage of Participants Who Achieved Clinical Remission at Week 525.3 percentage of participants
GED-0301 160 mg / GED-0301 40 mg 4 Week AltPercentage of Participants Who Achieved Clinical Remission at Week 522.5 percentage of participants
GED-0301 160 mg / GED-0301 40 mgPercentage of Participants Who Achieved Clinical Remission at Week 529.4 percentage of participants
GED-0301 160 mg / GED-0301 160 mg 4 Week AltPercentage of Participants Who Achieved Clinical Remission at Week 523.4 percentage of participants
p-value: 0.252395% CI: [-9.7, 3.9]Cochran-Mantel-Haenszel
p-value: 0.162695% CI: [-3, 11.8]Cochran-Mantel-Haenszel
p-value: 0.44295% CI: [-9.1, 5.3]Cochran-Mantel-Haenszel
Secondary

Percentage of Participants With Endoscopic Remission Centrally Read at Week 52

Endoscopic remission is defined as a simple endoscopic score for Crohn's disease (SES-CD) of ≤2 at the specified timeframe. The SES-CD assesses the size of mucosal ulcers, the extent of ulcerated surface, the extent of affected surface, and the presence and type of narrowings. Scores range from 0 to 60 with higher scores reflecting more severe disease. The SES-CD calculations include: * Ulcers scored as: 0: no 1. aphthous (0.1-0.5 cm) 2. large (0.5-2 cm) 3. very large (\>2 cm) * Surface involved disease 0: 0% 1. \<50% 2. 50-75% 3. \>75% Surface involved by ulcerations: 0: 0% 1. \<10% 2. 10-30% 3. \>30% - Narrowings: 0: No 1. Single, can be passed 2. Multiple, can be passed 3. Cannot be passed Grand Total = SES-CD score

Time frame: Week 52

Population: ITT population; includes participants who had either completed that timepoint visit or discontinued at any time due to reasons other than study terminated by sponsor. NRI.

ArmMeasureValue (NUMBER)
PlaceboPercentage of Participants With Endoscopic Remission Centrally Read at Week 522.7 percentage of participants
GED-0301 160 mg / GED-0301 40 mg 4 Week AltPercentage of Participants With Endoscopic Remission Centrally Read at Week 520.8 percentage of participants
GED-0301 160 mg / GED-0301 40 mgPercentage of Participants With Endoscopic Remission Centrally Read at Week 520.8 percentage of participants
GED-0301 160 mg / GED-0301 160 mg 4 Week AltPercentage of Participants With Endoscopic Remission Centrally Read at Week 520.9 percentage of participants
p-value: 0.357395% CI: [-8.3, 5.9]Cochran-Mantel-Haenszel
p-value: 0.222195% CI: [-8.7, 5.1]Cochran-Mantel-Haenszel
p-value: 0.257895% CI: [-8.7, 5.6]Cochran-Mantel-Haenszel
Secondary

Percentage of Participants With Endoscopic Response-25 Centrally Read at Week 12

An endoscopic response-25 is defined as a reduction of at least 25% compared with baseline in simple endoscopic score for Crohn's disease (SES-CD). The SES-CD assesses the size of mucosal ulcers, the extent of ulcerated surface, the extent of affected surface, and the presence and type of narrowings. Scores range from 0 to 60 with higher scores reflecting more severe disease. The SES-CD calculations include: * Ulcers scored as: 0: no 1. aphthous (0.1-0.5 cm) 2. large (0.5-2 cm) 3. very large (\>2 cm) * Surface involved disease 0: 0% 1. \<50% 2. 50-75% 3. \>75% Surface involved by ulcerations: 0: 0% 1. \<10% 2. 10-30% 3. \>30% - Narrowings: 0: No 1. Single, can be passed 2. Multiple, can be passed 3. Cannot be passed Grand Total = SES-CD score

Time frame: Week 0, Week 12

Population: ITT population; includes participants who had either completed that timepoint visit or discontinued at any time due to reasons other than study terminated by sponsor. NRI.

ArmMeasureValue (NUMBER)
PlaceboPercentage of Participants With Endoscopic Response-25 Centrally Read at Week 1228.1 percentage of participants
GED-0301 160 mg / GED-0301 40 mg 4 Week AltPercentage of Participants With Endoscopic Response-25 Centrally Read at Week 1217.3 percentage of participants
GED-0301 160 mg / GED-0301 40 mgPercentage of Participants With Endoscopic Response-25 Centrally Read at Week 1227.4 percentage of participants
GED-0301 160 mg / GED-0301 160 mg 4 Week AltPercentage of Participants With Endoscopic Response-25 Centrally Read at Week 1224.2 percentage of participants
p-value: 0.023995% CI: [-19.6, -1.4]Cochran-Mantel-Haenszel
p-value: 0.833495% CI: [-10.8, 8.7]Cochran-Mantel-Haenszel
p-value: 0.438395% CI: [-13.5, 5.8]Cochran-Mantel-Haenszel
Secondary

Percentage of Participants With Endoscopic Response-50 Centrally Read at Week 52

An endoscopic response-50 is defined as a reduction of at least 50% compared with baseline in simple endoscopic score for Crohn's Disease (SES-CD). The SES-CD assesses the size of mucosal ulcers, the extent of ulcerated surface, the extent of affected surface, and the presence and type of narrowings. Scores range from 0 to 60 with higher scores reflecting more severe disease. The SES-CD calculations include: * Ulcers scored as: 0: no 1. aphthous (0.1-0.5 cm) 2. large (0.5-2 cm) 3. very large (\>2 cm) * Surface involved disease 0: 0% 1. \<50% 2. 50-75% 3. \>75% Surface involved by ulcerations: 0: 0% 1. \<10% 2. 10-30% 3. \>30% - Narrowings: 0: No 1. Single, can be passed 2. Multiple, can be passed 3. Cannot be passed Grand Total = SES-CD score

Time frame: Week 52

Population: ITT population; Includes participants who had either completed that timepoint visit or discontinued at any time due to reasons other than study terminated by sponsor. NRI.

ArmMeasureValue (NUMBER)
PlaceboPercentage of Participants With Endoscopic Response-50 Centrally Read at Week 523.5 percentage of participants
GED-0301 160 mg / GED-0301 40 mg 4 Week AltPercentage of Participants With Endoscopic Response-50 Centrally Read at Week 520.8 percentage of participants
GED-0301 160 mg / GED-0301 40 mgPercentage of Participants With Endoscopic Response-50 Centrally Read at Week 521.6 percentage of participants
GED-0301 160 mg / GED-0301 160 mg 4 Week AltPercentage of Participants With Endoscopic Response-50 Centrally Read at Week 521.7 percentage of participants
p-value: 0.179995% CI: [-9.5, 5]Cochran-Mantel-Haenszel
p-value: 0.230995% CI: [-9.4, 4.9]Cochran-Mantel-Haenszel
p-value: 0.326495% CI: [-9.1, 4.6]Cochran-Mantel-Haenszel
Secondary

The Number of Participants Who Discontinued IP Due to an Treatment Emergent Adverse Events

A TEAE was defined as any AE occurring or worsening on or after the first dose of GED-0301 and up to 28 days after the last GED-0301 dose or the last follow-up date, whichever occurred earlier. A serious AE = any AE which results in death; is life-threatening; requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; constitutes an important medical event. The severity of AEs was assessed by the investigator and based on the following scale: Mild = asymptomatic or mild symptoms; clinical or diagnostic observations only; Moderate = Symptoms cause moderate discomfort; Severe (could be non-serious or serious) = symptoms causing severe discomfort/pain.

Time frame: From the first day of GED-0301 until 28 days after the last dose of IP; maximum treatment duration was 52.6 weeks

Population: The safety population consisted of all participants who were randomized and received at least 1 dose of IP

ArmMeasureValue (NUMBER)
PlaceboThe Number of Participants Who Discontinued IP Due to an Treatment Emergent Adverse Events11 participants
GED-0301 160 mg / GED-0301 40 mg 4 Week AltThe Number of Participants Who Discontinued IP Due to an Treatment Emergent Adverse Events15 participants
GED-0301 160 mg / GED-0301 40 mgThe Number of Participants Who Discontinued IP Due to an Treatment Emergent Adverse Events16 participants
GED-0301 160 mg / GED-0301 160 mg 4 Week AltThe Number of Participants Who Discontinued IP Due to an Treatment Emergent Adverse Events12 participants
Secondary

The Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52

A TEAE was defined as any adverse event (AE) occurring or worsening on or after the first treatment of GED-0301 and up to 28 days after the last GED-0301 dose or the last follow-up date, whichever occurred earlier. A serious AE = any AE which results in death; is life-threatening; requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; constitutes an important medical event.

Time frame: From the first day of GED-0301 until 28 days after the last dose of investigational product (IP); maximum treatment duration was 52.6 weeks

Population: The safety population consisted of all participants who were randomized and received at least 1 dose of IP.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
PlaceboThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any Severe TEAE14 Participants
PlaceboThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any TEAE Leading to Death0 Participants
PlaceboThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any Serious IP-Related TEAE3 Participants
PlaceboThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any Serious TEAE (SAE)16 Participants
PlaceboThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any IP-Related TEAE31 Participants
PlaceboThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any TEAE124 Participants
PlaceboThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any TEAE Leading to IP Interruption4 Participants
PlaceboThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any TEAE Leading to IP Withdrawal11 Participants
GED-0301 160 mg / GED-0301 40 mg 4 Week AltThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any TEAE Leading to Death0 Participants
GED-0301 160 mg / GED-0301 40 mg 4 Week AltThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any TEAE128 Participants
GED-0301 160 mg / GED-0301 40 mg 4 Week AltThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any IP-Related TEAE35 Participants
GED-0301 160 mg / GED-0301 40 mg 4 Week AltThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any Severe TEAE22 Participants
GED-0301 160 mg / GED-0301 40 mg 4 Week AltThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any Serious TEAE (SAE)28 Participants
GED-0301 160 mg / GED-0301 40 mg 4 Week AltThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any Serious IP-Related TEAE2 Participants
GED-0301 160 mg / GED-0301 40 mg 4 Week AltThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any TEAE Leading to IP Withdrawal15 Participants
GED-0301 160 mg / GED-0301 40 mg 4 Week AltThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any TEAE Leading to IP Interruption4 Participants
GED-0301 160 mg / GED-0301 40 mgThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any Severe TEAE21 Participants
GED-0301 160 mg / GED-0301 40 mgThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any Serious IP-Related TEAE2 Participants
GED-0301 160 mg / GED-0301 40 mgThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any TEAE Leading to IP Withdrawal16 Participants
GED-0301 160 mg / GED-0301 40 mgThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any IP-Related TEAE30 Participants
GED-0301 160 mg / GED-0301 40 mgThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any TEAE129 Participants
GED-0301 160 mg / GED-0301 40 mgThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any TEAE Leading to IP Interruption5 Participants
GED-0301 160 mg / GED-0301 40 mgThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any TEAE Leading to Death1 Participants
GED-0301 160 mg / GED-0301 40 mgThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any Serious TEAE (SAE)22 Participants
GED-0301 160 mg / GED-0301 160 mg 4 Week AltThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any Severe TEAE15 Participants
GED-0301 160 mg / GED-0301 160 mg 4 Week AltThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any TEAE Leading to Death1 Participants
GED-0301 160 mg / GED-0301 160 mg 4 Week AltThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any Serious IP-Related TEAE0 Participants
GED-0301 160 mg / GED-0301 160 mg 4 Week AltThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any IP-Related TEAE20 Participants
GED-0301 160 mg / GED-0301 160 mg 4 Week AltThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any Serious TEAE (SAE)15 Participants
GED-0301 160 mg / GED-0301 160 mg 4 Week AltThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any TEAE Leading to IP Interruption4 Participants
GED-0301 160 mg / GED-0301 160 mg 4 Week AltThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any TEAE Leading to IP Withdrawal12 Participants
GED-0301 160 mg / GED-0301 160 mg 4 Week AltThe Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAE) From Week 0 to Week 52Any TEAE113 Participants
Secondary

The Percentage of Participants Who Achieved a Clinical Remission at Week 4

A clinical remission is a CDAI score \< 150. The Crohn's Disease Activity Index is used to quantify the signs and symptoms of Crohn's disease and the effect on patient's quality of life. It consists of 8 variables which include patient reported outcomes over a 7 day period and physician assessments which are scored numerically and weighted. Scores range from 0 to 600, with the most severe disease defined \>450.

Time frame: Week 4

Population: ITT population; includes participants who had either completed that timepoint visit or discontinued at any time due to reasons other than study terminated by sponsor. NRI.

ArmMeasureValue (NUMBER)
PlaceboThe Percentage of Participants Who Achieved a Clinical Remission at Week 420.1 percentage of participants
GED-0301 160 mg / GED-0301 40 mg 4 Week AltThe Percentage of Participants Who Achieved a Clinical Remission at Week 418.6 percentage of participants
GED-0301 160 mg / GED-0301 40 mgThe Percentage of Participants Who Achieved a Clinical Remission at Week 416.5 percentage of participants
GED-0301 160 mg / GED-0301 160 mg 4 Week AltThe Percentage of Participants Who Achieved a Clinical Remission at Week 415.4 percentage of participants
p-value: 0.754195% CI: [-9.8, 7.1]Cochran-Mantel-Haenszel
p-value: 0.378495% CI: [-12, 4.6]Cochran-Mantel-Haenszel
p-value: 0.286595% CI: [-12.6, 3.8]Cochran-Mantel-Haenszel
Secondary

The Percentage of Participants Who Achieved a Clinical Response at Week 12

A clinical response is defined as a CDAI score decrease from baseline ≥ 100 points. The CDAI is used to quantify the signs and symptoms of Crohn's disease and the effect on patient's quality of life. It consists of 8 variables which include patient reported outcomes over a 7 day period and physician assessments which are scored numerically and weighted. Scores range from 0 to 600, with the most severe disease defined \>450.

Time frame: Week 12

Population: ITT population; Includes participants who had either completed that timepoint visit or discontinued at any time due to reasons other than study terminated by sponsor. NRI.

ArmMeasureValue (NUMBER)
PlaceboThe Percentage of Participants Who Achieved a Clinical Response at Week 1244.4 percentage of participants
GED-0301 160 mg / GED-0301 40 mg 4 Week AltThe Percentage of Participants Who Achieved a Clinical Response at Week 1232.1 percentage of participants
GED-0301 160 mg / GED-0301 40 mgThe Percentage of Participants Who Achieved a Clinical Response at Week 1234.1 percentage of participants
GED-0301 160 mg / GED-0301 160 mg 4 Week AltThe Percentage of Participants Who Achieved a Clinical Response at Week 1233.8 percentage of participants
p-value: 0.029995% CI: [-22, -1.1]Cochran-Mantel-Haenszel
p-value: 0.058295% CI: [-20.3, 0.7]Cochran-Mantel-Haenszel
p-value: 0.074195% CI: [-20.1, 1]Cochran-Mantel-Haenszel
Secondary

The Percentage of Participants Who Achieved a Clinical Response at Week 4

A clinical response is defined as a decrease from baseline in CDAI ≥ 100 points. The Crohn's Disease Activity Index is used to quantify the signs and symptoms of Crohn's disease and the effect on patient's quality of life. It consists of 8 variables which include patient reported outcomes over a 7 day period and physician assessments which are scored numerically and weighted. Scores range from 0 to 600, with the most severe disease defined \>450.

Time frame: Week 4

Population: ITT Population; includes participants who had either completed that timepoint visit or discontinued at any time due to reasons other than study terminated by sponsor. NRI.

ArmMeasureValue (NUMBER)
PlaceboThe Percentage of Participants Who Achieved a Clinical Response at Week 434.3 percentage of participants
GED-0301 160 mg / GED-0301 40 mg 4 Week AltThe Percentage of Participants Who Achieved a Clinical Response at Week 428.5 percentage of participants
GED-0301 160 mg / GED-0301 40 mgThe Percentage of Participants Who Achieved a Clinical Response at Week 432.4 percentage of participants
GED-0301 160 mg / GED-0301 160 mg 4 Week AltThe Percentage of Participants Who Achieved a Clinical Response at Week 427.8 percentage of participants
p-value: 0.249395% CI: [-15.5, 4]Cochran-Mantel-Haenszel
p-value: 0.71695% CI: [-11.8, 8.2]Cochran-Mantel-Haenszel
p-value: 0.245295% CI: [-15.5, 4.1]Cochran-Mantel-Haenszel
Secondary

The Percentage of Participants Who Achieved a Corticosteroid-Free Clinical Remission at Week 52

The percentage of participants who were receiving oral corticosteroids for Crohn's disease, at baseline and achieved a clinical remission (CDAI score \<150) at Week 52 without corticosteroids. The Crohn's Disease Activity Index is used to quantify the signs and symptoms of Crohn's disease and the effect on patient's quality of life. It consists of 8 variables which include patient reported outcomes over a 7 day period and physician assessments which are scored numerically and weighted. Scores range from 0 to 600, with the most severe disease defined \>450.

Time frame: Week 52

Population: ITT population; includes participants who received oral corticosteroids at baseline and had either completed that timepoint visit or discontinued at any time due to reasons other than study terminated by sponsor. NRI.

ArmMeasureValue (NUMBER)
PlaceboThe Percentage of Participants Who Achieved a Corticosteroid-Free Clinical Remission at Week 522.2 percentage of participants
GED-0301 160 mg / GED-0301 40 mg 4 Week AltThe Percentage of Participants Who Achieved a Corticosteroid-Free Clinical Remission at Week 520.0 percentage of participants
GED-0301 160 mg / GED-0301 40 mgThe Percentage of Participants Who Achieved a Corticosteroid-Free Clinical Remission at Week 527.0 percentage of participants
GED-0301 160 mg / GED-0301 160 mg 4 Week AltThe Percentage of Participants Who Achieved a Corticosteroid-Free Clinical Remission at Week 522.4 percentage of participants
Comparison: 2-sided 95% CI were based on the unstratified Newcombe method.p-value: 0.357295% CI: [-11.3, 7]Cochran-Mantel-Haenszel
p-value: 0.282395% CI: [-8.8, 18.9]Cochran-Mantel-Haenszel
p-value: >0.999995% CI: [-12.8, 13.7]Cochran-Mantel-Haenszel

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026