Effect of Adalimumab for the Treatment of Uveitis in Juvenile Idiopathic Arthritis

The investigators propose to study the efficacy of adalimumab versus placebo (double-blind randomization on inclusion into 2 equal groups) on reduction of ocular inflammation quantified by laser flare photometry after two months of treatment in patients with active uveitis despite well conducted treatment with steroid eye drops and MTX. The primary objective is to demonstrate a higher response rate at 2 months in the adalimumab arm versus the placebo arm. Will be considered as responding patients those in whom the evaluated eye, 2 months after inclusion, presents at least 30% reduction of inflammation on laser flare photometry and improvement or a stable appearance on slit lamp examination. After the second month, all patients wishing to continue the trial and presenting a satisfactory clinical state will be treated with adalimumab for a total of one year after inclusion to descriptively evaluate the efficacy and safety of treatment over 10 to 12 months.