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Efficacy and Safety of Adalimumab in Pediatric Subjects With Moderate to Severe Ulcerative Colitis

A Multicenter, Randomized, Double-Blind Study of the Human Anti-TNF Monoclonal Antibody Adalimumab in Pediatric Subjects With Moderate to Severe Ulcerative Colitis

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02065557
Enrollment
101
Registered
2014-02-19
Start date
2014-10-13
Completion date
2020-02-07
Last updated
2020-10-05

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

Conditions

Ulcerative Colitis

Keywords

Ulcerative Colitis, adalimumab

Brief summary

The purpose of the study is to demonstrate the efficacy and safety, and to assess the pharmacokinetics of adalimumab administered subcutaneously (SC) in pediatric subjects with moderate to severe ulcerative colitis (UC).

Interventions

BIOLOGICALAdalimumab

Subcutaneous (SC) injection

BIOLOGICALPlacebo

Subcutaneous (SC) injection

Sponsors

AbbVie
Lead SponsorINDUSTRY

Study design

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

Eligibility

Sex/Gender
ALL
Age
4 Years to 17 Years
Healthy volunteers
No

Inclusion criteria

* Diagnosis of UC for at least 12 weeks prior to screening, confirmed by endoscopy with biopsy. * Active ulcerative colitis with a Mayo Score of 6 - 12 points and endoscopy subscore of 2 - 3 despite concurrent treatment with oral corticosteroids or immunosuppressants or both.

Exclusion criteria

* Subject with Crohn's disease (CD) or indeterminate colitis (IC). * Current diagnosis of fulminant colitis and/or toxic megacolon. * Subjects with disease limited to the rectum (ulcerative proctitis) during the screening endoscopy. * Chronic recurring infections or active tuberculosis (TB).

Design outcomes

Primary

MeasureTime frameDescription
Co-Primary Endpoint 1: Percentage of Participants Who Achieved Clinical Remission as Measured by Partial Mayo Score (PMS) at Week 8 - Induction PeriodWeek 8The Mayo score is a tool designed to measure disease activity for ulcerative colitis. The PMS (Mayo score without endoscopy) ranges from 0 (normal or inactive disease) to 9 (severe disease) and is calculated as the sum of 3 sub scores (stool frequency, rectal bleeding and physician's global assessment), each of which ranges from 0 (normal) to 3 (severe disease). A negative change in PMS indicates improvement. Clinical remission was defined as a PMS ≤ 2 and no individual subscore \> 1.
Co-Primary Endpoint 2: Percentage of Participants With Clinical Remission Per Full Mayo Score (FMS) at Week 52 in Week 8 Responders Per PMS - Maintenance PeriodWeek 52The FMS ranges from 0 (normal or inactive disease) to 12 (severe disease) and is calculated as the sum of 4 subscores (stool frequency, rectal bleeding, endoscopy, and physician's global assessment), each of which ranges from 0 (normal) to 3 (severe disease). The PMS (Mayo score without endoscopy) ranges from 0 (normal or inactive disease) to 9 (severe disease) and is calculated as the sum of 3 subscores (stool frequency, rectal bleeding and physician's global assessment). Negative changes indicate improvement. PMS responders are defined as those with a decrease in PMS ≥ 2 points and ≥ 30% from Baseline. Clinical remission per FMS is defined as Mayo Score ≤ 2 and no individual subscore \> 1.

Secondary

MeasureTime frameDescription
Ranked Secondary Endpoint 1: Percentage of Participants With Clinical Response Per FMS at Week 52 in Week 8 Responders Per PMS - Maintenance PeriodWeek 52The FMS ranges from 0 (normal or inactive disease) to 12 (severe disease) and is calculated as the sum of 4 subscores (stool frequency, rectal bleeding, endoscopy, and physician's global assessment), each of which ranges from 0 (normal) to 3 (severe disease). The PMS (Mayo score without endoscopy) ranges from 0 (normal or inactive disease) to 9 (severe disease) and is calculated as the sum of 3 subscores (stool frequency, rectal bleeding and physician's global assessment). Negative changes indicate improvement. PMS responders are defined as those with a decrease in PMS ≥ 2 points and ≥ 30% from Baseline. Clinical response per FMS is defined as a decrease in FMS ≥ 3 points and ≥ 30% from Baseline.
Ranked Secondary Endpoint 2: Percentage of Participants With Mucosal Healing at Week 52 in Week 8 Responders Per PMS - Maintenance PeriodWeek 52The FMS ranges from 0 (normal or inactive disease) to 12 (severe disease) and is calculated as the sum of 4 subscores (stool frequency, rectal bleeding, endoscopy, and physician's global assessment), each of which ranges from 0 (normal) to 3 (severe disease). The PMS (Mayo score without endoscopy) ranges from 0 (normal or inactive disease) to 9 (severe disease) and is calculated as the sum of 3 subscores (stool frequency, rectal bleeding and physician's global assessment). Negative changes indicate improvement. PMS responders are defined as those participants with a decrease in PMS ≥ 2 points and ≥ 30% from Baseline. Mucosal healing per Mayo endoscopy subscore is defined as a subscore of ≤ 1.
Ranked Secondary Endpoint 3: Percentage of Participants With Clinical Remission Per FMS at Week 52 in Week 8 Remitters Per PMS - Maintenance PeriodWeek 52The FMS ranges from 0 (normal or inactive disease) to 12 (severe disease) and is calculated as the sum of 4 subscores (stool frequency, rectal bleeding, endoscopy, and physician's global assessment), each of which ranges from 0 (normal) to 3 (severe disease). The PMS (Mayo score without endoscopy) ranges from 0 (normal or inactive disease) to 9 (severe disease) and is calculated as the sum of 3 subscores (stool frequency, rectal bleeding and physician's global assessment). Negative changes indicate improvement. PMS remitters are defined as those participants with a PMS ≤ 2 and no individual subscore \> 1. Clinical remission per FMS is defined as Mayo Score ≤ 2 and no individual subscore \> 1.
Ranked Secondary Endpoint 4: Percentage of Participants With Corticosteroid-Free Clinical Remission Per FMS at Week 52 in Week 8 Responders Per PMS - Maintenance PeriodWeek 52The FMS ranges from 0 (normal or inactive disease) to 12 (severe disease) and is calculated as the sum of 4 subscores (stool frequency, rectal bleeding, endoscopy, and physician's global assessment), each of which ranges from 0 (normal) to 3 (severe disease). The PMS (Mayo score without endoscopy) ranges from 0 (normal or inactive disease) to 9 (severe disease) and is calculated as the sum of 3 subscores (stool frequency, rectal bleeding and physician's global assessment). Negative changes indicate improvement. PMS responders are defined as those with a decrease in PMS ≥ 2 points and ≥ 30% from baseline. Among participants receiving systemic corticosteroids at Baseline, corticosteroid-free clinical remission per FMS at Week 52 is defined as having discontinued systemic corticosteroids prior to Week 52 and being in FMS clinical remission at Week 52 (defined as Mayo Score ≤ 2 and no individual subscore \> 1).

Countries

Australia, Austria, Belgium, Canada, Czechia, Hungary, Israel, Japan, New Zealand, Poland, Slovakia, Spain, United Kingdom, United States

Participant flow

Recruitment details

Prior to Protocol Amendment 4, participants were randomized 3:2 at baseline to adalimumab induction high dose or adalimumab induction standard dose. At Week 8, those demonstrating a clinical response per Partial Mayo Score (PMS) were randomized 2:2:1 to adalimumab maintenance standard dose, adalimumab maintenance high dose, or maintenance placebo.

Pre-assignment details

After Protocol Amendment 4, participants received adalimumab induction high dose open-label. At Week 8, those demonstrating a clinical response per PMS were randomized in a 1:1 ratio to adalimumab maintenance standard dose or adalimumab maintenance high dose. Integrated Study data includes data from both the Main Study and the Japan Sub-Study.

Participants by arm

ArmCount
Integrated Study (Main + Japan Sub- Study): I-SD
Participants randomized to receive adalimumab 2.4 mg/kg (maximum dose of 160 mg) at Baseline and matching placebo at Week 1, 1.2 mg/kg (maximum dose of 80 mg) at Week 2, followed by 0.6 mg/kg (maximum dose of 40 mg) at Week 4 and Week 6.
32
Integrated Study (Main + Japan Sub- Study): I-HD
Participants randomized to receive adalimumab 2.4 mg/kg (maximum dose of 160 mg) at Baseline and at Week 1, 1.2 mg/kg (maximum dose of 80 mg) at Week 2, followed by 0.6 mg/kg (maximum dose of 40 mg) at Week 4 and Week 6.
51
Integrated Study (Main + Japan Sub- Study): I-HD-OL
(After Amendment 4) participants assigned to open-label adalimumab 2.4 mg/kg (maximum dose of 160 mg) at Baseline and at Week 1, 1.2 mg/kg (maximum dose of 80 mg) at Week 2, followed by 0.6 mg/kg (maximum dose of 40 mg) at Week 4 and Week 6.
18
Total101

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005
Induction PeriodAdverse Event110000
Induction PeriodLack of Efficacy211000
Induction PeriodNon-Responder at Week 8440000
Induction PeriodRequires Alternative/Prohibited Therapy111000
Induction PeriodWithdrawal by Subject210000
Maintenance PeriodLack of Efficacy000052
Maintenance PeriodRequires Alternative/Prohibited Therapy000110
Maintenance PeriodSubject Non-Compliance000001
Maintenance PeriodWithdrawal by Subject000021

Baseline characteristics

CharacteristicTotalIntegrated Study (Main + Japan Sub- Study): I-SDIntegrated Study (Main + Japan Sub- Study): I-HDIntegrated Study (Main + Japan Sub- Study): I-HD-OL
Age, Continuous14.1 years
STANDARD_DEVIATION 2.9
14.7 years
STANDARD_DEVIATION 2.66
13.8 years
STANDARD_DEVIATION 3.06
13.8 years
STANDARD_DEVIATION 2.82
Endoscopy Subscore2.2 score on a scale
STANDARD_DEVIATION 0.38
2.1 score on a scale
STANDARD_DEVIATION 0.34
2.2 score on a scale
STANDARD_DEVIATION 0.4
2.2 score on a scale
STANDARD_DEVIATION 0.43
Full Mayo Score (FMS)7.8 score on a scale
STANDARD_DEVIATION 1.2
7.8 score on a scale
STANDARD_DEVIATION 1.22
7.7 score on a scale
STANDARD_DEVIATION 1.25
7.7 score on a scale
STANDARD_DEVIATION 1.09
Partial Mayo Score (PMS)5.6 score on a scale
STANDARD_DEVIATION 1.17
5.7 score on a scale
STANDARD_DEVIATION 1.14
5.5 score on a scale
STANDARD_DEVIATION 1.24
5.5 score on a scale
STANDARD_DEVIATION 1.06
Physicians Global Assessment Subscore2.2 score on a scale
STANDARD_DEVIATION 0.41
2.2 score on a scale
STANDARD_DEVIATION 0.4
2.2 score on a scale
STANDARD_DEVIATION 0.43
2.2 score on a scale
STANDARD_DEVIATION 0.38
Race/Ethnicity, Customized
Asian
9 Participants3 Participants4 Participants2 Participants
Race/Ethnicity, Customized
Black
3 Participants1 Participants2 Participants0 Participants
Race/Ethnicity, Customized
Hispanic or Latino
4 Participants1 Participants2 Participants1 Participants
Race/Ethnicity, Customized
Japanese
8 Participants2 Participants4 Participants2 Participants
Race/Ethnicity, Customized
Multiple
1 Participants0 Participants0 Participants1 Participants
Race/Ethnicity, Customized
No Ethnicity
89 Participants29 Participants45 Participants15 Participants
Race/Ethnicity, Customized
White
88 Participants28 Participants45 Participants15 Participants
Rectal Bleeding Subscore1.5 score on a scale
STANDARD_DEVIATION 0.91
1.4 score on a scale
STANDARD_DEVIATION 0.93
1.5 score on a scale
STANDARD_DEVIATION 0.88
1.4 score on a scale
STANDARD_DEVIATION 0.97
Sex: Female, Male
Female
51 Participants15 Participants23 Participants13 Participants
Sex: Female, Male
Male
50 Participants17 Participants28 Participants5 Participants
Stool Frequency Subscore1.9 score on a scale
STANDARD_DEVIATION 0.83
2.1 score on a scale
STANDARD_DEVIATION 0.78
1.8 score on a scale
STANDARD_DEVIATION 0.88
1.9 score on a scale
STANDARD_DEVIATION 0.73

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
deaths
Total, all-cause mortality
0 / 320 / 510 / 180 / 330 / 360 / 120 / 101
other
Total, other adverse events
13 / 3216 / 5114 / 1815 / 3320 / 3610 / 1265 / 101
serious
Total, serious adverse events
5 / 324 / 511 / 185 / 335 / 361 / 1222 / 101

Outcome results

Primary

Co-Primary Endpoint 1: Percentage of Participants Who Achieved Clinical Remission as Measured by Partial Mayo Score (PMS) at Week 8 - Induction Period

The Mayo score is a tool designed to measure disease activity for ulcerative colitis. The PMS (Mayo score without endoscopy) ranges from 0 (normal or inactive disease) to 9 (severe disease) and is calculated as the sum of 3 sub scores (stool frequency, rectal bleeding and physician's global assessment), each of which ranges from 0 (normal) to 3 (severe disease). A negative change in PMS indicates improvement. Clinical remission was defined as a PMS ≤ 2 and no individual subscore \> 1.

Time frame: Week 8

Population: Intent-to-Treat (ITT): all participants who received at least 1 dose of study drug during the Induction period; analyzed as enrolled/randomized. Non-responder imputation (NRI): missing data is imputed as not having met the endpoint.

ArmMeasureValue (NUMBER)
Main Study: I-SDCo-Primary Endpoint 1: Percentage of Participants Who Achieved Clinical Remission as Measured by Partial Mayo Score (PMS) at Week 8 - Induction Period43.3 percentage of participants
Main Study: I-HDCo-Primary Endpoint 1: Percentage of Participants Who Achieved Clinical Remission as Measured by Partial Mayo Score (PMS) at Week 8 - Induction Period59.6 percentage of participants
Main Study: I-SD + I-HDCo-Primary Endpoint 1: Percentage of Participants Who Achieved Clinical Remission as Measured by Partial Mayo Score (PMS) at Week 8 - Induction Period53.2 percentage of participants
Main Study: I-HD-OLCo-Primary Endpoint 1: Percentage of Participants Who Achieved Clinical Remission as Measured by Partial Mayo Score (PMS) at Week 8 - Induction Period68.8 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-SDCo-Primary Endpoint 1: Percentage of Participants Who Achieved Clinical Remission as Measured by Partial Mayo Score (PMS) at Week 8 - Induction Period40.6 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-HDCo-Primary Endpoint 1: Percentage of Participants Who Achieved Clinical Remission as Measured by Partial Mayo Score (PMS) at Week 8 - Induction Period58.8 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-SD + I-HDCo-Primary Endpoint 1: Percentage of Participants Who Achieved Clinical Remission as Measured by Partial Mayo Score (PMS) at Week 8 - Induction Period51.8 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-HD-OLCo-Primary Endpoint 1: Percentage of Participants Who Achieved Clinical Remission as Measured by Partial Mayo Score (PMS) at Week 8 - Induction Period66.7 percentage of participants
Comparison: Efficacy analysis was based on the Intent-To-Treat-Efficacy (ITT-E) population for the induction period. The ITT-E population was a subpopulation of the ITT population, which consisted of all participants who received at least one SC injection of the study medication during the induction period. Participants who received open-label high induction dose, because they enrolled after Protocol Amendment 4 was released, were excluded from the ITT-E population.p-value: <0.001rejective multiple test procedure
Comparison: Efficacy analysis was based on the Intent-To-Treat-Efficacy (ITT-E) population for the induction period. The ITT-E population was a subpopulation of the ITT population, which consisted of all participants who received at least one SC injection of the study medication during the induction period. Participants who received open-label high induction dose, because they enrolled after Protocol Amendment 4 was released, were excluded from the ITT-E population.p-value: <0.001rejective multiple test procedure
Comparison: Efficacy analysis was based on the Intent-To-Treat-Efficacy (ITT-E) population for the induction period. The ITT-E population was a subpopulation of the ITT population, which consisted of all participants who received at least one SC injection of the study medication during the induction period. Participants who received open-label high induction dose, because they enrolled after Protocol Amendment 4 was released, were excluded from the ITT-E population.p-value: 0.382rejective multiple test procedure
Comparison: Efficacy analysis was based on the Intent-To-Treat-Efficacy (ITT-E) population for the induction period. The ITT-E population was a subpopulation of the ITT population, which consisted of all participants who received at least one SC injection of the study medication during the induction period. Participants who received open-label high induction dose, because they enrolled after Protocol Amendment 4 was released, were excluded from the ITT-E population.p-value: <0.001rejective multiple test procedure
Comparison: Efficacy analysis was based on the Intent-To-Treat-Efficacy (ITT-E) population for the induction period. The ITT-E population was a subpopulation of the ITT population, which consisted of all participants who received at least one SC injection of the study medication during the induction period. Participants who received open-label high induction dose, because they enrolled after Protocol Amendment 4 was released, were excluded from the ITT-E population.p-value: <0.001rejective multiple test procedure
Comparison: Efficacy analysis was based on the Intent-To-Treat-Efficacy (ITT-E) population for the induction period. The ITT-E population was a subpopulation of the ITT population, which consisted of all participants who received at least one SC injection of the study medication during the induction period. Participants who received open-label high induction dose, because they enrolled after Protocol Amendment 4 was released, were excluded from the ITT-E population.p-value: 0.344rejective multiple test procedure
Primary

Co-Primary Endpoint 2: Percentage of Participants With Clinical Remission Per Full Mayo Score (FMS) at Week 52 in Week 8 Responders Per PMS - Maintenance Period

The FMS ranges from 0 (normal or inactive disease) to 12 (severe disease) and is calculated as the sum of 4 subscores (stool frequency, rectal bleeding, endoscopy, and physician's global assessment), each of which ranges from 0 (normal) to 3 (severe disease). The PMS (Mayo score without endoscopy) ranges from 0 (normal or inactive disease) to 9 (severe disease) and is calculated as the sum of 3 subscores (stool frequency, rectal bleeding and physician's global assessment). Negative changes indicate improvement. PMS responders are defined as those with a decrease in PMS ≥ 2 points and ≥ 30% from Baseline. Clinical remission per FMS is defined as Mayo Score ≤ 2 and no individual subscore \> 1.

Time frame: Week 52

Population: Modified intent-to-treat (mITT): all Week 8 PMS responders who were re-randomized at Week 8 and received at least 1 dose of study drug during the Maintenance period; analyzed as randomized at the beginning of the Maintenance phase. NRI: missing data is imputed as not having met the endpoint.

ArmMeasureValue (NUMBER)
Main Study: I-SDCo-Primary Endpoint 2: Percentage of Participants With Clinical Remission Per Full Mayo Score (FMS) at Week 52 in Week 8 Responders Per PMS - Maintenance Period33.3 percentage of participants
Main Study: I-HDCo-Primary Endpoint 2: Percentage of Participants With Clinical Remission Per Full Mayo Score (FMS) at Week 52 in Week 8 Responders Per PMS - Maintenance Period29.0 percentage of participants
Main Study: I-SD + I-HDCo-Primary Endpoint 2: Percentage of Participants With Clinical Remission Per Full Mayo Score (FMS) at Week 52 in Week 8 Responders Per PMS - Maintenance Period45.2 percentage of participants
Main Study: I-HD-OLCo-Primary Endpoint 2: Percentage of Participants With Clinical Remission Per Full Mayo Score (FMS) at Week 52 in Week 8 Responders Per PMS - Maintenance Period37.1 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-SDCo-Primary Endpoint 2: Percentage of Participants With Clinical Remission Per Full Mayo Score (FMS) at Week 52 in Week 8 Responders Per PMS - Maintenance Period33.3 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-HDCo-Primary Endpoint 2: Percentage of Participants With Clinical Remission Per Full Mayo Score (FMS) at Week 52 in Week 8 Responders Per PMS - Maintenance Period27.3 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-SD + I-HDCo-Primary Endpoint 2: Percentage of Participants With Clinical Remission Per Full Mayo Score (FMS) at Week 52 in Week 8 Responders Per PMS - Maintenance Period42.9 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-HD-OLCo-Primary Endpoint 2: Percentage of Participants With Clinical Remission Per Full Mayo Score (FMS) at Week 52 in Week 8 Responders Per PMS - Maintenance Period35.3 percentage of participants
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: <0.001rejective multiple test procedure
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: <0.001rejective multiple test procedure
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: 0.382rejective multiple test procedure
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: <0.001rejective multiple test procedure
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: <0.001rejective multiple test procedure
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: 0.344rejective multiple test procedure
Secondary

Ranked Secondary Endpoint 1: Percentage of Participants With Clinical Response Per FMS at Week 52 in Week 8 Responders Per PMS - Maintenance Period

The FMS ranges from 0 (normal or inactive disease) to 12 (severe disease) and is calculated as the sum of 4 subscores (stool frequency, rectal bleeding, endoscopy, and physician's global assessment), each of which ranges from 0 (normal) to 3 (severe disease). The PMS (Mayo score without endoscopy) ranges from 0 (normal or inactive disease) to 9 (severe disease) and is calculated as the sum of 3 subscores (stool frequency, rectal bleeding and physician's global assessment). Negative changes indicate improvement. PMS responders are defined as those with a decrease in PMS ≥ 2 points and ≥ 30% from Baseline. Clinical response per FMS is defined as a decrease in FMS ≥ 3 points and ≥ 30% from Baseline.

Time frame: Week 52

Population: Modified intent-to-treat (mITT): all Week 8 PMS responders who were re-randomized at Week 8 and received at least 1 dose of study drug during the Maintenance period; analyzed as randomized at the beginning of the Maintenance phase. NRI: missing data is imputed as not having met the endpoint.

ArmMeasureValue (NUMBER)
Main Study: I-SDRanked Secondary Endpoint 1: Percentage of Participants With Clinical Response Per FMS at Week 52 in Week 8 Responders Per PMS - Maintenance Period33.3 percentage of participants
Main Study: I-HDRanked Secondary Endpoint 1: Percentage of Participants With Clinical Response Per FMS at Week 52 in Week 8 Responders Per PMS - Maintenance Period61.3 percentage of participants
Main Study: I-SD + I-HDRanked Secondary Endpoint 1: Percentage of Participants With Clinical Response Per FMS at Week 52 in Week 8 Responders Per PMS - Maintenance Period67.7 percentage of participants
Main Study: I-HD-OLRanked Secondary Endpoint 1: Percentage of Participants With Clinical Response Per FMS at Week 52 in Week 8 Responders Per PMS - Maintenance Period64.5 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-SDRanked Secondary Endpoint 1: Percentage of Participants With Clinical Response Per FMS at Week 52 in Week 8 Responders Per PMS - Maintenance Period33.3 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-HDRanked Secondary Endpoint 1: Percentage of Participants With Clinical Response Per FMS at Week 52 in Week 8 Responders Per PMS - Maintenance Period57.6 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-SD + I-HDRanked Secondary Endpoint 1: Percentage of Participants With Clinical Response Per FMS at Week 52 in Week 8 Responders Per PMS - Maintenance Period65.7 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-HD-OLRanked Secondary Endpoint 1: Percentage of Participants With Clinical Response Per FMS at Week 52 in Week 8 Responders Per PMS - Maintenance Period61.8 percentage of participants
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: <0.001rejective multiple test procedure
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: <0.001Chi-squared
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: 0.008Chi-squared
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: <0.001rejective multiple test procedure
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: <0.001rejective multiple test procedure
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: 0.038rejective multiple test procedure
Secondary

Ranked Secondary Endpoint 2: Percentage of Participants With Mucosal Healing at Week 52 in Week 8 Responders Per PMS - Maintenance Period

The FMS ranges from 0 (normal or inactive disease) to 12 (severe disease) and is calculated as the sum of 4 subscores (stool frequency, rectal bleeding, endoscopy, and physician's global assessment), each of which ranges from 0 (normal) to 3 (severe disease). The PMS (Mayo score without endoscopy) ranges from 0 (normal or inactive disease) to 9 (severe disease) and is calculated as the sum of 3 subscores (stool frequency, rectal bleeding and physician's global assessment). Negative changes indicate improvement. PMS responders are defined as those participants with a decrease in PMS ≥ 2 points and ≥ 30% from Baseline. Mucosal healing per Mayo endoscopy subscore is defined as a subscore of ≤ 1.

Time frame: Week 52

Population: Modified intent-to-treat (mITT): all Week 8 PMS responders who were re-randomized at Week 8 and received at least 1 dose of study drug during the Maintenance period; analyzed as randomized at the beginning of the Maintenance phase. NRI: missing data is imputed as not having met the endpoint.

ArmMeasureValue (NUMBER)
Main Study: I-SDRanked Secondary Endpoint 2: Percentage of Participants With Mucosal Healing at Week 52 in Week 8 Responders Per PMS - Maintenance Period33.3 percentage of participants
Main Study: I-HDRanked Secondary Endpoint 2: Percentage of Participants With Mucosal Healing at Week 52 in Week 8 Responders Per PMS - Maintenance Period38.7 percentage of participants
Main Study: I-SD + I-HDRanked Secondary Endpoint 2: Percentage of Participants With Mucosal Healing at Week 52 in Week 8 Responders Per PMS - Maintenance Period51.6 percentage of participants
Main Study: I-HD-OLRanked Secondary Endpoint 2: Percentage of Participants With Mucosal Healing at Week 52 in Week 8 Responders Per PMS - Maintenance Period45.2 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-SDRanked Secondary Endpoint 2: Percentage of Participants With Mucosal Healing at Week 52 in Week 8 Responders Per PMS - Maintenance Period33.3 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-HDRanked Secondary Endpoint 2: Percentage of Participants With Mucosal Healing at Week 52 in Week 8 Responders Per PMS - Maintenance Period36.4 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-SD + I-HDRanked Secondary Endpoint 2: Percentage of Participants With Mucosal Healing at Week 52 in Week 8 Responders Per PMS - Maintenance Period48.6 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-HD-OLRanked Secondary Endpoint 2: Percentage of Participants With Mucosal Healing at Week 52 in Week 8 Responders Per PMS - Maintenance Period42.6 percentage of participants
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: <0.001rejective multiple test procedure
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: <0.001rejective multiple test procedure
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: 0.382rejective multiple test procedure
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: <0.001rejective multiple test procedure
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: <0.001rejective multiple test procedure
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: 0.344rejective multiple test procedure
Secondary

Ranked Secondary Endpoint 3: Percentage of Participants With Clinical Remission Per FMS at Week 52 in Week 8 Remitters Per PMS - Maintenance Period

The FMS ranges from 0 (normal or inactive disease) to 12 (severe disease) and is calculated as the sum of 4 subscores (stool frequency, rectal bleeding, endoscopy, and physician's global assessment), each of which ranges from 0 (normal) to 3 (severe disease). The PMS (Mayo score without endoscopy) ranges from 0 (normal or inactive disease) to 9 (severe disease) and is calculated as the sum of 3 subscores (stool frequency, rectal bleeding and physician's global assessment). Negative changes indicate improvement. PMS remitters are defined as those participants with a PMS ≤ 2 and no individual subscore \> 1. Clinical remission per FMS is defined as Mayo Score ≤ 2 and no individual subscore \> 1.

Time frame: Week 52

Population: Modified intent-to-treat (mITT): all Week 8 PMS responders who were re-randomized at Week 8 and received at least 1 dose of study drug during the Maintenance period; analyzed as randomized at the beginning of the Maintenance phase. Participants who were also Week 8 remitters. NRI: missing data is imputed as not having met the endpoint.

ArmMeasureValue (NUMBER)
Main Study: I-SDRanked Secondary Endpoint 3: Percentage of Participants With Clinical Remission Per FMS at Week 52 in Week 8 Remitters Per PMS - Maintenance Period37.5 percentage of participants
Main Study: I-HDRanked Secondary Endpoint 3: Percentage of Participants With Clinical Remission Per FMS at Week 52 in Week 8 Remitters Per PMS - Maintenance Period42.9 percentage of participants
Main Study: I-SD + I-HDRanked Secondary Endpoint 3: Percentage of Participants With Clinical Remission Per FMS at Week 52 in Week 8 Remitters Per PMS - Maintenance Period45.5 percentage of participants
Main Study: I-HD-OLRanked Secondary Endpoint 3: Percentage of Participants With Clinical Remission Per FMS at Week 52 in Week 8 Remitters Per PMS - Maintenance Period44.2 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-SDRanked Secondary Endpoint 3: Percentage of Participants With Clinical Remission Per FMS at Week 52 in Week 8 Remitters Per PMS - Maintenance Period37.5 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-HDRanked Secondary Endpoint 3: Percentage of Participants With Clinical Remission Per FMS at Week 52 in Week 8 Remitters Per PMS - Maintenance Period42.9 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-SD + I-HDRanked Secondary Endpoint 3: Percentage of Participants With Clinical Remission Per FMS at Week 52 in Week 8 Remitters Per PMS - Maintenance Period44.0 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-HD-OLRanked Secondary Endpoint 3: Percentage of Participants With Clinical Remission Per FMS at Week 52 in Week 8 Remitters Per PMS - Maintenance Period43.5 percentage of participants
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: <0.001rejective multiple test procedure
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: <0.001rejective multiple test procedure
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: 0.292rejective multiple test procedure
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: <0.001rejective multiple test procedure
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: <0.001rejective multiple test procedure
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: 0.292rejective multiple test procedure
Secondary

Ranked Secondary Endpoint 4: Percentage of Participants With Corticosteroid-Free Clinical Remission Per FMS at Week 52 in Week 8 Responders Per PMS - Maintenance Period

The FMS ranges from 0 (normal or inactive disease) to 12 (severe disease) and is calculated as the sum of 4 subscores (stool frequency, rectal bleeding, endoscopy, and physician's global assessment), each of which ranges from 0 (normal) to 3 (severe disease). The PMS (Mayo score without endoscopy) ranges from 0 (normal or inactive disease) to 9 (severe disease) and is calculated as the sum of 3 subscores (stool frequency, rectal bleeding and physician's global assessment). Negative changes indicate improvement. PMS responders are defined as those with a decrease in PMS ≥ 2 points and ≥ 30% from baseline. Among participants receiving systemic corticosteroids at Baseline, corticosteroid-free clinical remission per FMS at Week 52 is defined as having discontinued systemic corticosteroids prior to Week 52 and being in FMS clinical remission at Week 52 (defined as Mayo Score ≤ 2 and no individual subscore \> 1).

Time frame: Week 52

Population: mITT: all Week 8 PMS responders who were re-randomized at Week 8 and received at least 1 dose of study drug during the Maintenance period; analyzed as randomized at the beginning of the Maintenance phase. Participants receiving systemic corticosteroids at baseline. NRI: missing data is imputed as not having met the endpoint.

ArmMeasureValue (NUMBER)
Main Study: I-SDRanked Secondary Endpoint 4: Percentage of Participants With Corticosteroid-Free Clinical Remission Per FMS at Week 52 in Week 8 Responders Per PMS - Maintenance Period40.0 percentage of participants
Main Study: I-HDRanked Secondary Endpoint 4: Percentage of Participants With Corticosteroid-Free Clinical Remission Per FMS at Week 52 in Week 8 Responders Per PMS - Maintenance Period30.8 percentage of participants
Main Study: I-SD + I-HDRanked Secondary Endpoint 4: Percentage of Participants With Corticosteroid-Free Clinical Remission Per FMS at Week 52 in Week 8 Responders Per PMS - Maintenance Period31.3 percentage of participants
Main Study: I-HD-OLRanked Secondary Endpoint 4: Percentage of Participants With Corticosteroid-Free Clinical Remission Per FMS at Week 52 in Week 8 Responders Per PMS - Maintenance Period31.0 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-SDRanked Secondary Endpoint 4: Percentage of Participants With Corticosteroid-Free Clinical Remission Per FMS at Week 52 in Week 8 Responders Per PMS - Maintenance Period40.0 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-HDRanked Secondary Endpoint 4: Percentage of Participants With Corticosteroid-Free Clinical Remission Per FMS at Week 52 in Week 8 Responders Per PMS - Maintenance Period26.7 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-SD + I-HDRanked Secondary Endpoint 4: Percentage of Participants With Corticosteroid-Free Clinical Remission Per FMS at Week 52 in Week 8 Responders Per PMS - Maintenance Period35.3 percentage of participants
Integrated Study (Main + Japan Sub-Study): I-HD-OLRanked Secondary Endpoint 4: Percentage of Participants With Corticosteroid-Free Clinical Remission Per FMS at Week 52 in Week 8 Responders Per PMS - Maintenance Period31.3 percentage of participants
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: 0.382rejective multiple test procedure
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: 1rejective multiple test procedure
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: 1rejective multiple test procedure
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: 0.344rejective multiple test procedure
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: 0.559rejective multiple test procedure
Comparison: Efficacy analysis was based on the modified Intent-To-Treat-Efficacy (mITT-E) population for the maintenance period. The mITT-E population was a subpopulation of the mITT population, where participants in M-PL arm were excluded.p-value: 0.815rejective multiple test procedure

Source: ClinicalTrials.gov · Data processed: Feb 22, 2026