[Mycophenol acid in ocular automimmune disorders--can we optimise this therapy?]

Mycophenolate mofetil (MMF) has gained acceptance as an immune modulatory agent in the treatment of autoimmune disorders such as uveitis. It represented a major advance, although optimal use may be limited, in particular, by gastrointestinal (GI) side effects in up to 50 % patients. This prospective study was undertaken to evaluate the effect of conversion from mycophenolate mofetil (MMF) to an enteric-coated mycophenolate sodium (EC-MPS).

Within a cohort of 143 patients treated with MMF we prospectively followed 19 individuals who developed gastrointestinal side effects. Because of limited treatment alternatives, conversion to an enteric-coated mycophenolate sodium (EC-MPS) was undertaken. A standardised questionnaire (GSRS) was completed by each patient regarding GI adverse events, at predefined intervals during the study.

The spectrum of underlying disorders included uveitis (n = 16) and ocular cicatricial pemphigoid (n = 3) that were initially treated with MMF (1000 mg BID). All patients could be kept on EC-MPS treatment and followed with a mean follow-up of 44 weeks (median +/- 12). The maximum of scores on GSRS was reached at baseline (conversion to EC-MPS) in all but 3 patients. However, GSRS scores improved significantly between baseline and visit 4 (3 months) and remained stable further on (p < 0.03). In all but one (uveitis) patient the underlying disorders were under control demonstrating the similar efficacies of MMF and EC-MPS treatments.

The use of EC-MPS appears to be a valid treatment option in ocular autoimmune disorders. In particular. patients with gastrointestinal problems may profit from a significantly reduced frequency of adverse events.