Clinical outcomes of weekly adalimumab in refractory non-infectious paediatric uveitis and the role of serum drug levels and anti-adalimumab antibodies

BACKGROUND/OBJECTIVES: Adalimumab (ADA) is a well-established treatment for refractory paediatric uveitis; however, some patients remain inadequately controlled on standard biweekly dosing. Weekly ADA injections are increasingly used, though evidence in paediatric cohorts remains limited. This study evaluates outcomes of escalation to weekly ADA in children with refractory uveitis and explores the relevance of serum drug levels and anti-ADA antibodies (AAA). SUBJECTS/METHODS: Patients with idiopathic uveitis at two tertiary centres in the UK treated with weekly adalimumab were retrospectively reviewed. Demographic, clinical and laboratory data were collected, including age at escalation, systemic diagnosis, serum ADA levels, AAA titres pre- and post-escalation, clinical response and complications. Treatment success was defined as ≤0.5+ anterior chamber cells and