An Efficacy and Safety Study of Intravenous Anifrolumab to Treat Systemic Lupus Erythematosus in Pediatric Participants

Inclusion Criteria: * Participant's parent/caregiver/legally authorized representative and participant (if required per local country regulation) capable of giving signed informed consent, which includes compliance with the requirements and restrictions listed in the ICF and in this protocol. Informed assent is to be provided by the participant per local country regulation. * Diagnosis of SLE according to the 2019 European League Against Rheumatism/American College of Rheumatology (EULAR/ACR) criteria for at least 3 months prior to signing the ICF. * Participant should meet all of following tuberculosis (TB) criteria: A. No signs or symptoms of active TB B. No medical history or past physical examinations suggestive of active TB C. No recent contact with a person with active TB or if there has been such contact, referral to a TB specialist for evaluation and initiation of treatment for latent TB, if warranted, prior to the first administration of study intervention in accordance with local SoC D. No history of latent TB without documented completion of treatment prior to initial screening visit * Female participants of childbearing potential must have a negative serum pregnancy test at screening and negative urine pregnancy test at randomization. * Female participants of childbearing and male participants must adhere to the contraception methods. Exclusion Criteria: * Known diagnosis of an IFN-mediated autoinflammatory interferonopathy. * History of, or current diagnosis…