A Pharmacokinetic Study of Ustekinumab in Pediatric Subjects With Moderately to Severely Active Crohn's Disease

A Randomized Double-blind Pharmacokinetic Study of Ustekinumab in Pediatric Subjects With Moderately to Severely Active Crohn's Disease

The purpose of this study is to evaluate the pharmacokinetics (PK) of ustekinumab in subjects from 2 through less than (<) 18 years old in the USA, or 6 through less than (<) 18 years old in other countries and determine if it is similar to that observed in adults with moderately to severely active Crohn's disease (CD). Also to assess the safety, immunogenicity and efficacy of ustekinumab in the treatment of moderately to severely active CD. The main part of the study continues to Week 16, at which point all subjects who are receiving benefit from ustekinumab maintenance therapy (as determined by the investigator) are eligible to enter the long-term extension (LTE) and continue to receive ustekinumab. The study extension ends at Week 268 or upon availability of the LTE basket study (CNTO1275ISD3001) whichever occurs first. If participants do not consent/assent to the LTE basket study, they will continue safety follow-up for approximately 20 weeks after the last study agent administration.

A Pharmacokinetic Study of Ustekinumab in Pediatric Subjects With Moderately to Severely Active Crohn's Disease

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