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.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
120
Risankizumab intravenous (IV) infusion
Risankizumab subcutaneous (SC) injection
Phoenix Children's Hospital /ID# 273015
Phoenix, Arizona, United States
RECRUITINGRady Children's Hospital /ID# 271873
San Diego, California, United States
RECRUITINGUniversity of California San Francisco - Mission Bay /ID# 273022
San Francisco, California, United States
RECRUITINGNicklaus Children's Hospital - Miami - Southwest 62nd Avenue /ID# 271585
Miami, Florida, United States
PK Lead-In Cohort 1: Maximum Observed Serum Concentration (Cmax)
Maximum observed plasma concentration (Cmax)
Time frame: At Week 64
PK Lead-In Cohort 2: Maximum Observed Serum Concentration (Cmax)
Maximum observed plasma concentration (Cmax)
Time frame: At Week 64
PK Lead-In Cohort 1: Time to Maximum Serum Concentration (Tmax)
Time to maximum plasma concentration (Tmax)
Time frame: At Week 64
PK Lead-In Cohort 2: Time to Maximum Serum Concentration (Tmax)
Time to maximum plasma concentration (Tmax)
Time frame: At Week 64
PK Lead-In Cohort 1: Area Under the Serum Concentration-Time Curve Over the Dosing Interval (AUCtau)
Area under the serum concentration-time curve over the dosing interval (AUCtau)
Time frame: At Week 64
PK Lead-In Cohort 2: Area Under the Serum Concentration-Time Curve Over the Dosing Interval (AUCtau)
Area under the serum concentration-time curve over the dosing interval (AUCtau)
Time frame: At Week 64
Expansion Cohort 3: Achievement of Clinical Remission per Modified Mayo Score (mMS) Among Week 12 Clinical Responders per mMS
Clinical 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
Time frame: At Week 64
Number of Participants With Adverse Events
An 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
Time frame: Up to 292 Weeks
PK Lead-In Cohort 1: Achievement of clinical remission per mMS among Week 12 responders per mMS
Clinical 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
Time frame: At Week 64
PK Lead-In Cohort 2: Achievement of clinical remission per mMS among Week 12 responders per mMS
Clinical 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
Time frame: At Week 64
PK Lead-In Cohort 1: Achievement of clinical remission per mMS
Clinical 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
Time frame: At Week 12
PK Lead-In Cohort 2: Achievement of clinical remission per mMS
Clinical 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
Time frame: At Week 12
PK Lead-In Cohort 1: Achievement of clinical response per mMS
Clinical 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.
Time frame: At Week 12
PK Lead-In Cohort 2: Achievement of clinical response per mMS
Clinical 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.
Time frame: At Week 12
PK Lead-In Cohort 1: Achievement of endoscopic improvement
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Childrens Center For Digestive Health Care /ID# 273228
Atlanta, Georgia, United States
RECRUITINGUniversity of Chicago Medical Center /ID# 271588
Chicago, Illinois, United States
RECRUITINGGoryeb Children's Hospital /ID# 271801
Morristown, New Jersey, United States
RECRUITINGUniversity Hospitals Cleveland Medical Center /ID# 271831
Cleveland, Ohio, United States
RECRUITINGThe Children's Hospital of Philadelphia /ID# 273222
Philadelphia, Pennsylvania, United States
RECRUITINGUpmc Children'S Hospital Of Pittsburgh /ID# 272328
Pittsburgh, Pennsylvania, United States
RECRUITING...and 55 more locations
Endoscopic improvement defined as MES ≤ 1
Time frame: At Week 12
PK Lead-In Cohort 2: Achievement of endoscopic improvement
Endoscopic improvement defined as MES ≤ 1
Time frame: At Week 12
PK Lead-In Cohort 1: Symptomatic response per partial mMS
Symptomatic 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.
Time frame: At Week 12
PK Lead-In Cohort 2: Symptomatic response per partial mMS
Symptomatic 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.
Time frame: At Week 12
PK Lead-In Cohort 1: Achievement of clinical response per mMS among Week 12 responders per mMS
Clinical 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.
Time frame: At Week 64
PK Lead-In Cohort 2: Achievement of clinical response per mMS among Week 12 responders per mMS
Clinical 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.
Time frame: At Week 64
PK Lead-In Cohort 1: Achievement of endoscopic improvement among Week 12 responders per mMS
Endoscopic improvement defined as MES ≤ 1
Time frame: At Week 64
PK Lead-In Cohort 2: Achievement of endoscopic improvement among Week 12 responders per mMS
Endoscopic improvement defined as MES ≤ 1
Time frame: At Week 64
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 mMS
Time frame: Up 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 mMS
Time frame: Up to Week 64
Expansion Cohort 3: Achievement of clinical remission per mMS
Time frame: At Week 12
Expansion Cohort 3: Achievement of clinical response per mMS
Time frame: At Week 12
Expansion Cohort 3: Achievement of endoscopic improvement
Time frame: At Week 12
Expansion Cohort 3: Symptomatic response per partial mMS
Time frame: At Week 12
Expansion Cohort 3: Achievement of clinical response per mMS among Week 12 responders per mMS
Time frame: At Week 64
Expansion Cohort 3: Achievement of endoscopic improvement among Week 12 responders per mMS
Time frame: At Week 64
Expansion Cohort 3: Achievement of corticosteroid-free clinical remission per mMS among Week 12 responders per mMS
Time frame: At Week 64