In most cases, the treatment of adult's Still disease presents difficu
lties, in view of its undesirable side-effects. For this reason we, ma
de an open trial of the the effects of high-dose high-dose intravenous
immunoglobulins (IVIg), a therapy with low iatrogen risk, and whose e
ffectiveness in the treatment of other multisystemic diseases has been
acknowledged. Seven patients suffering from adult Still's disease wer
e given between one and eight IVIg infusions with a dose of 1 g/kg/day
for two consecutive days. All seven responded positively, with clinic
al improvement. It lasted between I and 90 days in three patients, who
subsequently relapsed; it has been continuing for an average of 13 mo
nths (2 to 24 months) in the other four patients. There were no clinic
al features making it possible to distinguish, after the trial the pat
ients who responded positively to intravenous immunoglobulins. This da
ta, which needs to be confirmed with a controlled trial, provides hope
of improved therapy for the one half of patients suffering from adult
Still's disease who respond positively to intravenous immunoglobulins
.