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A Study to Learn More About How Risankizumab Works in Young Participants With Ulcerative Colitis

A Phase 3, Multi-Center Study to Evaluate the Pharmacokinetics, Efficacy, and Safety of Risankizumab With Open-Label Induction, Randomized Double-Blind Maintenance, and Open-Label Long-Term Extension Periods in Pediatric Subjects (2 to < 18 Years of Age) With Moderately to Severely Active Ulcerative Colitis

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07071519
Acronym
MIGHTY
Enrollment
120
Registered
2025-07-17
Start date
2025-07-28
Completion date
2034-07-01
Last updated
2026-09-17

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

Conditions

Ulcerative Colitis

Keywords

risankizumab

Brief summary

Ulcerative colitis (UC) is a type of inflammatory bowel disease that causes inflammation and bleeding from the lining of the rectum and colon (large intestine). This study will assess how Risankizumab moves through the body as well as how safe and effective it is in treating pediatric participants with moderate to severely active UC. Adverse events and change in disease activity will be assessed. Risankizumab is an approved medication for moderate to severe UC in multiple countries and is being developed for the treatment of UC in pediatrics. This study is comprised of 3 cohorts that may participate in 3 substudies (SS). Cohort 1 will enroll participants with ages from 6 to less than 18 years. Cohort 2 will enroll participants with ages from 2 to less than 6 years. Cohort 3 will enroll participants with ages from 2 to less than 18 years. SS1 is an open-label induction period where participants will receive a weight-based induction regimen of risankizumab. SS2 is a double-blind maintenance period where participants will be randomized to receive 1 of 2 doses of weight-based maintenance regimen of risankizumab. SS3 is an open-label extension period where participants will receive risankizumab based off of their response in SS2. Around 120 pediatric participants with UC will be enrolled at around 80 sites worldwide. Participants in SS1 will receive risankizumab intravenously during the 12-week induction period. Participants in SS2 will receive risankizumab subcutaneously during the 52-week randomized maintenance period. Participants in SS3 will receive risankizumab subcutaneously during the 208-week open label period. Participants will be followed-up for approximately 140 days. There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at a hospital or clinic. The effect of the treatment will be checked by medical assessments, blood tests, checking for side effects and completing questionnaires.

Interventions

DRUGRisankizumab

Risankizumab intravenous (IV) infusion

Sponsors

AbbVie
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

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

Inclusion criteria

* Active ulcerative colitis (UC) with an modified Mayo Score (mMS) of 5 to 9 points and endoscopic subscore of 2 to 3 (confirmed by central reader). * Demonstrated intolerance or inadequate response (IR) to one or more of the following categories of drugs: aminosalicylates (except in countries where failure of this drug class is not sufficient for eligibility), oral locally acting corticosteroids, systemic steroids (prednisone or equivalent), immunomodulators (IMMs), and/or biologic therapies, as outlined in the protocol. \- Subjects must have a documented history of UC for at least 3 months prior to Baseline, confirmed by colonoscopy during the screening period, with exclusion of current infection, colonic dysplasia and/or malignancy. Documentation of pathology results consistent with the diagnosis of UC must be available.

Exclusion criteria

* Participants who have had a major surgery performed within 12 weeks prior to Baseline or planned during the conduct of the study (e.g., inguinal hernia repair, cholecystectomy, intestinal resection). * Participants who have concurrent clinically significant medical conditions other than the indication being studied or any other reason that the investigator determines would interfere with the subject's participation in this study, would make the subject an unsuitable candidate to receive study treatment, or would put the subject at risk by participating in the study.

Design outcomes

Primary

MeasureTime frameDescription
PK Lead-In Cohort 1: Maximum Observed Serum Concentration (Cmax)At Week 64Maximum observed plasma concentration (Cmax)
PK Lead-In Cohort 2: Maximum Observed Serum Concentration (Cmax)At Week 64Maximum observed plasma concentration (Cmax)
PK Lead-In Cohort 1: Time to Maximum Serum Concentration (Tmax)At Week 64Time to maximum plasma concentration (Tmax)
PK Lead-In Cohort 2: Time to Maximum Serum Concentration (Tmax)At Week 64Time to maximum plasma concentration (Tmax)
PK Lead-In Cohort 1: Area Under the Serum Concentration-Time Curve Over the Dosing Interval (AUCtau)At Week 64Area under the serum concentration-time curve over the dosing interval (AUCtau)
PK Lead-In Cohort 2: Area Under the Serum Concentration-Time Curve Over the Dosing Interval (AUCtau)At Week 64Area under the serum concentration-time curve over the dosing interval (AUCtau)
Expansion Cohort 3: Achievement of Clinical Remission per Modified Mayo Score (mMS) Among Week 12 Clinical Responders per mMSAt Week 64Clinical remission on the mMS is defined as defined as Stool Frequency Subscore (SFS) ≤ 1 and not greater than Baseline, Rectal Bleeding Subscore (RBS) = 0, and Mayo Endoscopic Subscore (MES) ≤ 1
Number of Participants With Adverse EventsUp to 292 WeeksAn adverse event (AE) is defined as any untoward medical occurrence in a patient or clinical investigation subject administered a pharmaceutical product and which does not necessarily have a causal relationship with this treatment. The investigator assessed the relationship of each event to the use of study drug as either probably related, possibly related, probably not related or not related

Secondary

MeasureTime frameDescription
PK Lead-In Cohort 1: Achievement of clinical remission per mMS among Week 12 responders per mMSAt Week 64Clinical remission on the mMS is defined as defined as Stool Frequency Subscore (SFS) ≤ 1 and not greater than Baseline, Rectal Bleeding Subscore (RBS) = 0, and Mayo Endoscopic Subscore (MES) ≤ 1
PK Lead-In Cohort 2: Achievement of clinical remission per mMS among Week 12 responders per mMSAt Week 64Clinical remission on the mMS is defined as defined as Stool Frequency Subscore (SFS) ≤ 1 and not greater than Baseline, Rectal Bleeding Subscore (RBS) = 0, and Mayo Endoscopic Subscore (MES) ≤ 1
PK Lead-In Cohort 1: Achievement of clinical remission per mMSAt Week 12Clinical remission on the mMS is defined as Stool Frequency Subscore (SFS) ≤ 1 and not greater than Baseline, Rectal Bleeding Subscore (RBS) = 0, and Mayo Endoscopic Subscore (MES) ≤ 1
PK Lead-In Cohort 2: Achievement of clinical remission per mMSAt Week 12Clinical remission on the mMS is defined as Stool Frequency Subscore (SFS) ≤ 1 and not greater than Baseline, Rectal Bleeding Subscore (RBS) = 0, and Mayo Endoscopic Subscore (MES) ≤ 1
PK Lead-In Cohort 1: Achievement of clinical response per mMSAt Week 12Clinical response per mMS is defined as decrease in mMS by ≥ 2 points and ≥ 30% from Baseline with a decrease in Rectal Bleeding Subscore (RBS) of ≥ 1 or an absolute RBS of 0 or 1.
PK Lead-In Cohort 2: Achievement of clinical response per mMSAt Week 12Clinical response per mMS is defined as decrease in mMS by ≥ 2 points and ≥ 30% from Baseline with a decrease in Rectal Bleeding Subscore (RBS) of ≥ 1 or an absolute RBS of 0 or 1.
PK Lead-In Cohort 1: Achievement of endoscopic improvementAt Week 12Endoscopic improvement defined as MES ≤ 1
PK Lead-In Cohort 2: Achievement of endoscopic improvementAt Week 12Endoscopic improvement defined as MES ≤ 1
PK Lead-In Cohort 1: Symptomatic response per partial mMSAt Week 12Symptomatic response per partial mMS is defined as decrease in partial mMS by ≥ 1 points and ≥ 30% from Baseline with decrease in RBS of ≥ 1 or an absolute RBS of 0 or 1.
PK Lead-In Cohort 2: Symptomatic response per partial mMSAt Week 12Symptomatic response per partial mMS is defined as decrease in partial mMS by ≥ 1 points and ≥ 30% from Baseline with decrease in RBS of ≥ 1 or an absolute RBS of 0 or 1.
PK Lead-In Cohort 1: Achievement of clinical response per mMS among Week 12 responders per mMSAt Week 64Clinical response per mMS is defined as decrease in mMS by ≥ 2 points and ≥ 30% from Baseline with a decrease in Rectal Bleeding Subscore (RBS) of ≥ 1 or an absolute RBS of 0 or 1.
PK Lead-In Cohort 2: Achievement of clinical response per mMS among Week 12 responders per mMSAt Week 64Clinical response per mMS is defined as decrease in mMS by ≥ 2 points and ≥ 30% from Baseline with a decrease in Rectal Bleeding Subscore (RBS) of ≥ 1 or an absolute RBS of 0 or 1.
PK Lead-In Cohort 1: Achievement of endoscopic improvement among Week 12 responders per mMSAt Week 64Endoscopic improvement defined as MES ≤ 1
PK Lead-In Cohort 2: Achievement of endoscopic improvement among Week 12 responders per mMSAt Week 64Endoscopic improvement defined as MES ≤ 1
PK Lead-In Cohort 1: Achievement of corticosteroid-free (at least 90 days without corticosteroid exposure) clinical remission per mMS at Week 64 among Week 12 responders per mMSUp to Week 64
PK Lead-In Cohort 2: Achievement of corticosteroid-free (at least 90 days without corticosteroid exposure) clinical remission per mMS at Week 64 among Week 12 responders per mMSUp to Week 64
Expansion Cohort 3: Achievement of clinical remission per mMSAt Week 12
Expansion Cohort 3: Achievement of clinical response per mMSAt Week 12
Expansion Cohort 3: Achievement of endoscopic improvementAt Week 12
Expansion Cohort 3: Symptomatic response per partial mMSAt Week 12
Expansion Cohort 3: Achievement of clinical response per mMS among Week 12 responders per mMSAt Week 64
Expansion Cohort 3: Achievement of endoscopic improvement among Week 12 responders per mMSAt Week 64
Expansion Cohort 3: Achievement of corticosteroid-free clinical remission per mMS among Week 12 responders per mMSAt Week 64

Countries

Belgium, Brazil, Canada, China, Germany, Greece, Italy, Japan, Serbia, South Korea, Spain, Sweden, Taiwan, United Kingdom, United States

Contacts

CONTACTABBVIE CALL CENTER
abbvieclinicaltrials@abbvie.com844-663-3742
STUDY_DIRECTORABBVIE INC.

AbbVie

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 18, 2026