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Details

Stereochemistry ACHIRAL
Molecular Formula C25H27N3O2S
Molecular Weight 433.566
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of BREXPIPRAZOLE

SMILES

O=C1NC2=C(C=C1)C=CC(OCCCCN3CCN(CC3)C4=CC=CC5=C4C=CS5)=C2

InChI

InChIKey=ZKIAIYBUSXZPLP-UHFFFAOYSA-N
InChI=1S/C25H27N3O2S/c29-25-9-7-19-6-8-20(18-22(19)26-25)30-16-2-1-11-27-12-14-28(15-13-27)23-4-3-5-24-21(23)10-17-31-24/h3-10,17-18H,1-2,11-16H2,(H,26,29)

HIDE SMILES / InChI

Molecular Formula C25H27N3O2S
Molecular Weight 433.566
Charge 0
Count
MOL RATIO 1 MOL RATIO (average)
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Description

Brexpiprazole is a novel D2 dopamine and serotonin 1A partial agonist, called serotonin-dopamine activity modulator (SDAM), and a potent antagonist of serotonin 2A receptors, noradrenergic alpha 1B and 2C receptors. Brexpiprazole is approved for the treatment of schizophrenia, and as an adjunctive treatment for major depressive disorder (MDD). Although it failed Phase II clinical trials for ADHD, it has been designed to provide improved efficacy and tolerability (e.g., less akathisia, restlessness and/or insomnia) over established adjunctive treatments for major depressive disorder (MDD).Brexpiprazole is sold under the brand name Rexulti. Although the mechanism of action of brexpiprazole in the treatment of MDD and schizophrenia is unclear, the efficacy of brexpiprazole may be attributed to partial agonist activity at serotonin 1A and dopamine D2 receptors, and antagonist activity at serotonin 2A receptors.

CNS Activity

Originator

Approval Year

Targets

Primary TargetPharmacologyConditionPotency
0.12 nM [Ki]
0.47 nM [Ki]
0.3 nM [Ki]
1.1 nM [Ki]
1.9 nM [Ki]
0.59 nM [Ki]
0.17 nM [Ki]

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
REXULTI
Primary
REXULTI

Cmax

ValueDoseCo-administeredAnalytePopulation
29.3 ng/mL
1 mg 1 times / day multiple, oral
BREXPIPRAZOLE plasma
Homo sapiens
165 ng/mL
4 mg 1 times / day multiple, oral
BREXPIPRAZOLE plasma
Homo sapiens
206 ng/mL
6 mg 1 times / day multiple, oral
BREXPIPRAZOLE plasma
Homo sapiens

AUC

ValueDoseCo-administeredAnalytePopulation
537 ng × h/mL
1 mg 1 times / day multiple, oral
BREXPIPRAZOLE plasma
Homo sapiens
3238 ng × h/mL
4 mg 1 times / day multiple, oral
BREXPIPRAZOLE plasma
Homo sapiens
3738 ng × h/mL
6 mg 1 times / day multiple, oral
BREXPIPRAZOLE plasma
Homo sapiens

T1/2

ValueDoseCo-administeredAnalytePopulation
91.9 h
1 mg 1 times / day multiple, oral
BREXPIPRAZOLE plasma
Homo sapiens
70.6 h
4 mg 1 times / day multiple, oral
BREXPIPRAZOLE plasma
Homo sapiens
51.9 h
6 mg 1 times / day multiple, oral
BREXPIPRAZOLE plasma
Homo sapiens

Funbound

ValueDoseCo-administeredAnalytePopulation
1%
unknown, unknown
BREXPIPRAZOLE plasma
Homo sapiens

Doses

AEs

Drug as perpetrator​

Drug as victim

PubMed

Sample Use Guides

In Vivo Use Guide
Treatment of Schizophrenia The recommended starting dosage for REXULTI (Brexpiprazole) is 1 mg once daily on Days 1 to 4, taken orally with or without food The recommended target REXULTI dosage is 2 mg to 4 mg once daily. Titrate to 2 mg once daily on Day 5 through Day 7, then to 4 mg on Day 8 based on the patient’s clinical response and tolerability. The maximum recommended daily dosage is 4 mg.
Route of Administration: Oral
In Vitro Use Guide
Brexpiprazole (1.0 uM) increased the number of cells with neurites in PC12 cells. Treatment with brexpiprazole (0.001, 0.01, 0.1 or 1.0 uM) in conjunction with NGF (2.5 ng/ml) increased the number of cells with neurites, in a concentration-dependent manner.
Substance Class Chemical
Record UNII
2J3YBM1K8C
Record Status Validated (UNII)
Record Version