|Synonyms||3α-Hydroxy-3β-methyl-21-(4-cyano-1H-pyrazol-1'-yl)-19-nor-5β-pregnan-20-one; 3β-Methyl-21-(4-cyano-1H-pyrazol-1'-yl)-19-norpregnanolone; 3α-Hydroxy-3β-methyl-5β-dihydro-21-(4-cyano-1H-pyrazol-1'-yl)-19-norprogesterone|
|Drug class||Neurosteroid; GABAA receptor positive allosteric modulator|
|Chemical and physical data|
|Molar mass||409.574 g·mol−1|
|3D model (JSmol)|
Zuranolone (INN; developmental code SAGE-217) is an investigational medication which is under development by SAGE Therapeutics for the treatment of major depressive disorder, postpartum depression, essential tremor, Parkinson's disease, insomnia, and seizures. It is a synthetic, orally active, inhibitory pregnane neurosteroid, and acts as a positive allosteric modulator of the GABAA receptor. The drug was developed as an improvement of allopregnanolone (brexanolone) with high oral bioavailability and a biological half-life suitable for once-daily administration. As of February 2018, SAGE-217 is in phase II clinical trials for major depressive disorder, postpartum depression, essential tremor, and Parkinson's disease and is in phase I clinical studies for insomnia and seizures. It is also in the preclinical stage of development for dyskinesias.