A Study of Ustekinumab in Pediatric Participants With Moderately to Severely Active Ulcerative Colitis (UC) (UNIFI Jr)

Janssen (J&J Innovative Medicine)

Status and phase: Active, not recruiting; Phase 3

Conditions: Colitis, Ulcerative

Treatments: Drug: Matching Placebo; Drug: Ustekinumab Dose Based on BSA and Body Weight

Study type: Interventional

Funder types: Industry

Identifiers

NCT04630028

2023-504977-19-00 (Registry Identifier)

CNTO1275PUC3001 (Other Identifier)

CR108865

2019-004224-38 (EudraCT Number)

Details and patient eligibility

About

The purpose of this study is to evaluate: a) the efficacy of ustekinumab dosing in inducing clinical remission, b) safety profile of ustekinumab, and c) ustekinumab exposure (pharmacokinetics [PK]) in pediatric participants with moderately to severely active UC.

Enrollment: 112 patients

Sex: All

Ages: 2 to 17 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Medically stable on the basis of physical examination, medical history, and vital signs, performed at screening. Any abnormalities must be consistent with the underlying illness in the study population and this determination must be recorded in the participant's source documents and acknowledged by the investigator
• Must have had UC diagnosed prior to screening
• Have moderately to severely active UC, defined as a baseline Mayo score of 6 through 12, inclusive, with a screening Mayo endoscopy subscore greater than or equal to (>=) 2 as determined by a central review of the video of the endoscopy
• A participant who has had extensive colitis for >= 8 years, or disease limited to the left side of the colon for >= 10 years, must: a) have had a full colonoscopy to assess for the presence of dysplasia within 1 year before the first administration of study intervention or b) have a full colonoscopy with surveillance for dysplasia as the baseline endoscopy during the screening period. Results from these surveillance biopsies must be negative for dysplasia (low-grade, high-grade, or indeterminant) prior to the first administration of study intervention
• Females of childbearing potential must have a negative highly sensitive urine pregnancy test at screening and at Week I-0 prior to study intervention administration

Exclusion criteria

• Have UC limited to the rectum only or to less than (<) 20 centimeter (cm) of the colon
• Presence or history of colonic or small bowel obstruction within 6 months prior to screening, confirmed by objective radiographic or endoscopic evidence of a stricture with resulting obstruction (dilation of the colon or small bowel proximal to the stricture on barium radiograph or an inability to traverse the stricture at endoscopy)
• Have a history of latent or active granulomatous infection, histoplasmosis, or coccidioidomycosis, or have had a nontuberculous mycobacterial infection prior to screening
• Presence or history of any malignancy including presence or history of lymphoproliferative disease including lymphoma, or signs and symptoms suggestive of possible lymphoproliferative disease, such as lymphadenopathy of unusual size or location (example, nodes in the posterior triangle of the neck, infraclavicular, epitrochlear, or periaortic areas) and monoclonal gammopathy of undetermined significance, or clinically significant hepatomegaly or splenomegaly
• Has known allergies, hypersensitivity, or intolerance to ustekinumab or its excipients

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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112 participants in 3 patient groups

Induction Period (I): Ustekinumab

Experimental group

Description:

All participants will receive a single intravenous (IV) administration of ustekinumab at induction Week 0 (I-0) based on body surface area (BSA) (milligram per meter square \[mg/m\^2\]) or weight-tiered induction dose (milligram per kilogram \[mg/kg\]).

Treatment:

Drug: Ustekinumab Dose Based on BSA and Body Weight

Maintenance (M) Period: Ustekinumab once every 8 Week (q8w)

Experimental group

Description:

Participants will receive subcutaneous (SC) administration of ustekinumab every 8 weeks (q8w) based on BSA (mg/m\^2) or weight-tiered induction dose (mg/kg) at Weeks M-0, M-8, M-16, M-24, M-32, M-40 and matching placebo at Weeks M-12 and M-36 to maintain the blind.

Treatment:

Drug: Ustekinumab Dose Based on BSA and Body Weight

Drug: Matching Placebo

Maintenance (M) Period: Ustekinumab once every 12 Week (q12w)

Experimental group

Description:

Participants will receive SC administration of ustekinumab every 12 weeks (q12w) based on BSA (mg/m\^2) or weight-tiered induction dose (mg/kg) at Weeks M-0, M-12, M-24, M-36 and matching placebo at Weeks M-8, M-16, M-32, and M-40 to maintain the blind.

Treatment:

Drug: Ustekinumab Dose Based on BSA and Body Weight

Drug: Matching Placebo