Fig.5. Neurosteroid drug development.
(A) Structure-activity relationship for identification and optimization of novel neurosteroid analogs as modulators of synaptic and extrasynaptic GABA-A receptors. (B) Novel neurosteroid analogs with potential clinical use in neurological disorders. Ganaxolone and SGE-516 are clinical trials for epilepsy and brain conditions. Alfaxolone is available for veterinary clinical use as anesthetic agent.