| Recruiting | N/A | 4100 | Europe, Canada | | The Hospital for Sick Children, Canadian Institutes of Health Research (CIHR), Genome Canada, Genome Alberta, The Arthritis Society, Canada, ReumaNederland, ZonMw: The Netherlands Organisation for Health Research and Development, Alberta Children's Hospital, Ontario Genomics | Juvenile Idiopathic Arthritis | 03/25 | 03/27 | | |