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Clinical data
Other namesSAGE-217; S-812217; 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
Routes of
By mouth
Drug classNeurosteroid; GABAA receptor positive allosteric modulator
  • 1-(2-((3R,5R,8R,9R,10S,13S,14S,17S)-3-Hydroxy-3,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl)-1H-pyrazole-4-carbonitrile
CAS Number
PubChem CID
Chemical and physical data
Molar mass409.574 g·mol−1
3D model (JSmol)
  • O=C(CN1N=CC(C#N)=C1)[C@H]2CC[C@@]3([H])[C@]4([H])CC[C@]5([H])C[C@](C)(O)CC[C@]5([H])[C@@]4([H])CC[C@@]32C
  • InChI=1S/C25H35N3O2/c1-24(30)9-7-18-17(11-24)3-4-20-19(18)8-10-25(2)21(20)5-6-22(25)23(29)15-28-14-16(12-26)13-27-28/h13-14,17-22,30H,3-11,15H2,1-2H3/t17-,18+,19-,20-,21+,22-,24-,25+/m1/s1

Zuranolone (INN;[1] developmental code names SAGE-217, S-812217) is an investigational medication which is under development by SAGE Therapeutics for the treatment of depressive disorders and a variety of other indications.[2][3] It is a synthetic, orally active, inhibitory pregnane neurosteroid, and acts as a positive allosteric modulator of the GABAA receptor.[2][3][4] The drug was developed as an improvement of allopregnanolone (brexanolone) with high oral bioavailability and a biological half-life suitable for once-daily administration.[3] As of October 2019, zuranolone is in phase III clinical trials for major depressive disorder, postpartum depression, and insomnia and is in phase II clinical studies for bipolar depression, essential tremor, and Parkinson's disease.[2] It is also in the preclinical stage of development for dyskinesias.[2]

See also[edit]


  1. ^ "International Nonproprietary Names for Pharmaceutical Substances" (PDF). WHO Drug Information. 32 (4). 2018.
  2. ^ a b c d "SAGE 217". AdisInsight. Retrieved 2018-02-10.
  3. ^ a b c Blanco MJ, La D, Coughlin Q, Newman CA, Griffin AM, Harrison BL, Salituro FG (2018). "Breakthroughs in neuroactive steroid drug discovery". Bioorg. Med. Chem. Lett. 28 (2): 61–70. doi:10.1016/j.bmcl.2017.11.043. PMID 29223589.
  4. ^ Martinez Botella G, Salituro FG, Harrison BL, Beresis RT, Bai Z, Blanco MJ, Belfort GM, Dai J, Loya CM, Ackley MA, Althaus AL, Grossman SJ, Hoffmann E, Doherty JJ, Robichaud AJ (2017). "Neuroactive Steroids. 2. 3α-Hydroxy-3β-methyl-21-(4-cyano-1H-pyrazol-1'-yl)-19-nor-5β-pregnan-20-one (SAGE-217): A Clinical Next Generation Neuroactive Steroid Positive Allosteric Modulator of the (γ-Aminobutyric Acid)A Receptor". J. Med. Chem. 60 (18): 7810–7819. doi:10.1021/acs.jmedchem.7b00846. PMID 28753313.