Gamma-vinyl-GABA: A single-blind trial in patients with epilepsy

Abstract
The anti-epileptic effect of .gamma.-vinyl-GABA (GVG) was studied using a placebo-controlled, single-blind design in 15 patients with therapy-resistant epilepsy, the majority experiencing complex partial seizures. GVG was added to concomitant treatment, which was kept at constant serum levels. Following administration of 1, 2 and 3 g/day, significant reductions in seizure frequency were observed. A poor correlation was found between GVG serum levels and clinical effect. Only mild and transient side-effects were observed.