| Bioactivity | Zuranolone is an orally active and potent neuroactive steroid positive allosteric modulator of GABAA receptor, with EC50s of 296 and 163 nM for α1β2γ2 and α4β3δ GABAA receptors, respectively[1]. | ||||||||||||
| Target | EC50: 296 nM (α1β2γ2 GABAA receptor), 163 nM (α4β3δ GABAA receptor) | ||||||||||||
| Invitro | Zuranolone is a potent GABAA receptor agonist with EC50s of 296 and 163 nM for α1β2γ2 and α4β3δ GABAA receptors, respectively. Zuranolone is currently being studied in parallel phase 2 clinical trials for the treatment of postpartum depression (PPD) and major depressive disorder (MDD). Zuranolone shows >30 μM inhibition in a cardiac panel of eight relevant cardiac ion channels. At 10 μM concentration of Zuranolone, only binding at the glycine (57%), sigma receptors (88%), and inhibition of the transient receptor potential vanilloid 1 (TRPV1, 95%) is noted[1]. | ||||||||||||
| In Vivo | Acute administration of Zuranolone (0.3 to 10 mg/kg, ip) effectively reduces pentylenetretazol (PTZ)-induced seizures in mice (MECplasma=85 nM) as well as produces a dose-dependent anticonvulsant effect in the mouse 6 Hz electrical stimulation model. In the rat model of status epilepticus (SE), Zuranolone (0.3 to 5 mg, iv) abolishes both behavioral and electrographic seizure activity, even when administered 60 min after induction of SE. Additional PK studies of Zuranolone in dog show low clearance (<10% of hepatic blood flow), resulting in excellent oral bioavailability (F=68%)[1]. | ||||||||||||
| Name | Zuranolone | ||||||||||||
| CAS | 1632051-40-1 | ||||||||||||
| Formula | C25H35N3O2 | ||||||||||||
| Molar Mass | 409.56 | ||||||||||||
| Appearance | Solid | ||||||||||||
| Transport | Room temperature in continental US; may vary elsewhere. | ||||||||||||
| Storage |
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| Reference | [1]. Martinez Botella G, et al. Neuroactive Steroids. 2. 3α-Hydroxy-3β-methyl-21-(4-cyano-1H-pyrazol-1'-yl)-19-nor-5β-pregnan-20-one: A Clinical Next Generation Neuroactive Steroid Positive Allosteric Modulator of the (γ-Aminobutyric Acid)A Receptor. J Med Che |
Zuranolone
CAS: 1632051-40-1 F: C25H35N3O2 W: 409.56
Zuranolone is an orally active and potent neuroactive steroid positive allosteric modulator of GABAA receptor, with EC50
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