At a symposium held in Zurich in November 1993, a series of presentati
ons covered the optimal use of cyclosporin A (CsA) in autoimmune disea
ses. Besides its immunosuppressive effects in organ transplantation, C
sA appears to be active in a variety of autoimmune disorders. Its most
pronounced and beneficial clinical effects are seen in patients with
severe rheumatoid arthritis. New clinical studies include the nephroti
c syndrome in children and patients with systemic lupus erythematodes.
The main concern remains CsA induced nephrotoxicity. For the treatmen
t of autoimmune disorders CsA can be used at lower doses (less than or
equal to 5 mg/kg per day) than in transplantation medicine. Thus, mon
itoring of CsA blood concentrations is not usually necessary. The gale
nics of CsA has been optimized recently, an achievement which will fur
ther improve the clinical use of CsA. Due to increased knowledge of in
tracellular CsA binding proteins and of effects of CsA on T-lymphocyte
s and cytokine production, it can be expected that novel immunsuppress
ive compounds will be developed.