Uveitis, Anterior

The goal of this clinical trial is to learn whether children and young adults with well-controlled juvenile idiopathic arthritis (JIA)-associated uveitis or chronic anterior uveitis can safely take adalimumab (or biosimilar) injections less often while maintaining control of their disease. The main question it aims to answer is: can adalimumab/biosimilar injections be given less frequently without uveitis (eye inflammation) or arthritis (joint inflammation) returning? Researchers will compare adalimumab/biosimilar injection schedules of every 2 weeks, 4 weeks, 8 weeks, and 12 weeks to determine how injection frequency affects disease control. Participants will: * Take adalimumab/biosimilar injections every 2, 4, 8, or 12 weeks. * Attend study visits every 6 weeks over 24 weeks, with an additional follow-up visit at 48 weeks for checkups, tests, and questionnaires. * Keep a diary of how often they take adalimumab/biosimilar and other drugs they take for their uveitis/arthritis.

The Use of Two YUTIQ versus Sham for Treatment of Chronic Non Infectious Intraocular Inflammation Affecting the Posterior Segment (TYNI Trial)

Spondyloarthritis (SpA) encompasses a group of inflammatory rheumatic diseases characterized by axial and/or peripheral arthritis, along with extra-articular manifestations such as enthesitis, dactylitis, uveitis, and skin lesions. Axial spondyloarthritis (axSpA), the hallmark of which is chronic sacroiliitis, can progress to vertebral fusion ("bamboo spine") in advanced cases. The prevalence of axSpA varies globally, ranging from 0.1% to 1.4%, with a higher incidence in men and a typical onset in the second or third decades of life. Diagnostic approaches include imaging techniques such as sacroiliac MRI and radiographs, alongside clinical criteria like inflammatory back pain, NSAID responsiveness, peripheral arthritis, and HLA-B27 positivity. Disease management primarily involves NSAIDs, with biologics used for refractory cases, and disease activity is monitored using indices such as BASDAI and ASDAS. Acute anterior uveitis (AAU) is the most common extra-articular manifestation of SpA, particularly associated with HLA-B27 positivity. It often presents unilaterally with redness, pain, and photophobia but can lead to severe complications if inadequately treated. Around 50% of patients with HLA-B27-positive AAU have underlying SpA, and the prevalence of uveitis increases with longer disease duration. While the link between SpA and AAU is well-established, further research is needed to determine optimal systemic treatment and follow-up protocols. This study aims to assess the prevalence and clinical characteristics of SpA in patients presenting with AAU at ophthalmology clinics.

This study seeks to describe, for children undergoing uveitis surveillance following a new diagnosis of juvenile idiopathic arthritis, the feasibility metrics of undertaking a randomised comparative study of routine slit lamp examination (SLE) versus imaging based (anterior segment optical coherence tomography, OCT) surveillance in order to inform the development of a larger multi-centre trial.