RecruitingPhase 1Biological interventionStudy to Evaluate the Pharmacokinetics (PK), Safety and Tolerability up to 6 Years of Intravenous (i.v.) Secukinumab in Pediatric Participants With Juvenile Psoriatic Arthritis (JPsA).The purpose of this study is to determine the PK, safety and tolerability of multiple doses of intravenous (i.v.) secukinumab in pediatric participants with JPsA