RecruitingPhase 3Drug trialA Study of Guselkumab in Pediatric Participants With Moderately to Severely Active Crohn's DiseaseThe purpose of this study is to evaluate the clinical and endoscopic efficacy of guselkumab in pediatric participants with Crohn's Disease (CD) at the end of maintenance therapy (Week 52) among participants who were in clinical response to guselkumab at Week 12.