US Patent 9757391 Neuroactive steroids and their use to facilitate neuroprotection

The present disclosure teaches generally neuroprotection and in particular the use of non-hormonal neuroactive steroids to ameliorate inflammation of the central nervous system (CNS). More specifically, the present claims define methods of treating inflammation or ameliorating a neuroinflammatory-promoting condition in the CNS by administration of a steroid with certain properties formulated in a sulfobutyl ether beta-cyclodextrin composition. The steroid is neuroactive, devoid of hormonal endocrine activity and activates a pregnane X receptor. Examples of such steroids include alphaxalone, alphadolone allopregnanolone, pregnanolone, ganaxolone, hydroxydione, minaxolone, Org20599, Org21465, CT1341 and compounds of Formula (I). Dependent claims further define the type of the neuroinflammatory-promoting conditions, the type of cyclodextrin, the molar ratio of neuroactive steroid to the cyclodextrin and the inclusion of other active agents or excipients in the composition and their nature.