This was an open-label, parallel group, two-arm, multi-center, trial in pediatric subjects aged 6 years to less than 18 years, at randomization, with moderate to severe chronic, plaque psoriasis. The study consists of 3 periods: screening (up to 4 weeks), treatment (of 208 weeks) and post-treatment follow-up (of 16 weeks).~Approximately 80 subjects (at least 60 subjects with moderate psoriasis) were planned to be enrolled in about 40 centers worldwide and targeted to have at least 5 subjects in the < 25kg body weight, and at least 10 subjects in each of the other two weight groups (25-< 50 kg and ≥ 50 kg). Adolescents (12-< 18 years) and children (6-< 12 years) were included from the beginning of this study, since the DMC had approved already the enrollment of children (6-< 12 years) in the study CAIN457A2310. Subjects received the appropriate dose based on their body weight category.~If the subject moved into a higher or lower weight group at two consecutive visits with weight measurements during the maintenance (from Week 12 onwards as assessed at 4 weekly visits or during extension treatment period (as assessed at scheduled site visits), then the subject was dosed according to the new (higher or lower) weight group respectively.
This was an open-label, parallel-group, two-arm, multicenter study in pediatric subjects aged 6 years to less than 18 years, at randomization, with moderate to severe chronic plaque psoriasis. 84 subjects (most with moderate severity) were enrolled. Subjects were stratified by weight and disease severity.