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Details

Stereochemistry ABSOLUTE
Molecular Formula C18H31N5O6
Molecular Weight 413.4686
Optical Activity UNSPECIFIED
Defined Stereocenters 6 / 6
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of RAPASTINEL

SMILES

C[C@@H](O)[C@H](N)C(=O)N1CCC[C@H]1C(=O)N2CCC[C@H]2C(=O)N[C@@H]([C@@H](C)O)C(N)=O

InChI

InChIKey=GIBQQARAXHVEGD-BSOLPCOYSA-N
InChI=1S/C18H31N5O6/c1-9(24)13(19)18(29)23-8-4-6-12(23)17(28)22-7-3-5-11(22)16(27)21-14(10(2)25)15(20)26/h9-14,24-25H,3-8,19H2,1-2H3,(H2,20,26)(H,21,27)/t9-,10-,11+,12+,13+,14+/m1/s1

HIDE SMILES / InChI

Molecular Formula C18H31N5O6
Molecular Weight 413.4686
Charge 0
Count
MOL RATIO 1 MOL RATIO (average)
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 6 / 6
E/Z Centers 0
Optical Activity UNSPECIFIED

Description

Rapastinel (formerly known as GLYX-13) is an investigational intravenous formulation of a novel NMDA receptor partial agonist, which is being evaluated for adjunctive treatment of Major depressive disorder, and has shown a rapid onset of antidepressant efficacy 1 day after a single dose in a Phase 2 clinical trial of patients with Major depressive disorder who had an inadequate response to one or more antidepressants. No psychotomimetic or hallucinogenic side effects were observed with rapastinel. Few adverse events were reported by 5% or more of subjects and these were rated as mild or moderate. These included headache, somnolence, dizziness, dysgeusia, and fatigue. On January 29, 2016, Allergan (who acquired Naurex in July 2015) announced that rapastinel had received Breakthrough Therapy designation from the U.S. FDA for adjunctive treatment of major depressive disorder.

CNS Activity

Originator

Approval Year

Targets

Primary TargetPharmacologyConditionPotency

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Unknown
Primary
Unknown

Cmax

ValueDoseCo-administeredAnalytePopulation
5.2 μg/mL
1 mg/kg single, intravenous
RAPASTINEL plasma
Homo sapiens
182 μg/mL
20 mg/kg single, intravenous
RAPASTINEL plasma
Homo sapiens
26 μg/mL
5 mg/kg single, intravenous
RAPASTINEL plasma
Homo sapiens
100 μg/mL
10 mg/kg single, intravenous
RAPASTINEL plasma
Homo sapiens

AUC

ValueDoseCo-administeredAnalytePopulation
32 μg × min/mL
1 mg/kg single, intravenous
RAPASTINEL plasma
Homo sapiens
4030 μg × min/mL
20 mg/kg single, intravenous
RAPASTINEL plasma
Homo sapiens
288 μg × min/mL
5 mg/kg single, intravenous
RAPASTINEL plasma
Homo sapiens
1162 μg × min/mL
10 mg/kg single, intravenous
RAPASTINEL plasma
Homo sapiens

T1/2

ValueDoseCo-administeredAnalytePopulation
4.7 min
1 mg/kg single, intravenous
RAPASTINEL plasma
Homo sapiens
14 min
20 mg/kg single, intravenous
RAPASTINEL plasma
Homo sapiens
7.4 min
5 mg/kg single, intravenous
RAPASTINEL plasma
Homo sapiens
9 min
10 mg/kg single, intravenous
RAPASTINEL plasma
Homo sapiens

PubMed

Patents

Sample Use Guides

In Vivo Use Guide
450 mg weekly injections
Route of Administration: Intravenous
In Vitro Use Guide
The enhancement of burst-evoked NMDAR EPSCs produced by 100 nM–1 uM GLYX-13 and, was converted by ifenprodil into a reduction in NMDAR currents, supporting the hypothesis that GLYX-13 produces enhancement of NMDAR-mediated conductance by a selective action on the glycine site of extrasynaptically enriched NMDARs that contain NR2B subunits.
Substance Class Chemical
Record UNII
6A1X56B95E
Record Status Validated (UNII)
Record Version