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Details

Stereochemistry ABSOLUTE
Molecular Formula C27H29N5O3
Molecular Weight 471.5509
Optical Activity UNSPECIFIED
Defined Stereocenters 1 / 1
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of ZANUBRUTINIB

SMILES

NC(=O)C1=C2NCC[C@@H](C3CCN(CC3)C(=O)C=C)N2N=C1C4=CC=C(OC5=CC=CC=C5)C=C4

InChI

InChIKey=RNOAOAWBMHREKO-QFIPXVFZSA-N
InChI=1S/C27H29N5O3/c1-2-23(33)31-16-13-18(14-17-31)22-12-15-29-27-24(26(28)34)25(30-32(22)27)19-8-10-21(11-9-19)35-20-6-4-3-5-7-20/h2-11,18,22,29H,1,12-17H2,(H2,28,34)/t22-/m0/s1

HIDE SMILES / InChI

Molecular Formula C27H29N5O3
Molecular Weight 471.5509
Charge 0
Count
MOL RATIO 1 MOL RATIO (average)
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 1 / 1
E/Z Centers 0
Optical Activity UNSPECIFIED

Description

Zanubrutinib (formerly known as BGB-3111) was developed by BeiGene as a small-molecule inhibitor of Bruton's tyrosine kinase (BTK). The drug forms a covalent bond with a cysteine residue in the BTK active site, leading to inhibition of BTK activity. BTK signaling results in activation of pathways necessary for B-cell proliferation, trafficking, chemotaxis, and adhesion, thus Zanubrutinib inhibits malignant B-cell proliferation and reduces tumor growth. Zanubrutinib was granted accelerated approval by the FDA in November 2019 based on clinical trial results that demonstrated an 84% overall response rate from zanubrutinib therapy in patients with mantle cell lymphoma (MCL). On August 31, 2021, the Food and Drug Administration approved zanubrutinib for adult patients with Waldenström’s macroglobulinemia (WM).

CNS Activity

Originator

Approval Year

Targets

Primary TargetPharmacologyConditionPotency
0.3 nM [IC50]

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Unknown
Primary
Unknown
Primary
Unknown
Primary
BRUKINSA
Primary
Brukinsa

Cmax

ValueDoseCo-administeredAnalytePopulation
543 ng/mL
320 mg 1 times / day steady-state, oral
ZANUBRUTINIB plasma
Homo sapiens
346 ng/mL
160 mg 2 times / day multiple, oral
ZANUBRUTINIB plasma
Homo sapiens

AUC

ValueDoseCo-administeredAnalytePopulation
2180 ng × h/mL
320 mg 1 times / day steady-state, oral
ZANUBRUTINIB plasma
Homo sapiens
1405 ng × h/mL
160 mg 2 times / day multiple, oral
ZANUBRUTINIB plasma
Homo sapiens

T1/2

ValueDoseCo-administeredAnalytePopulation
4 h
320 mg 1 times / day steady-state, oral
ZANUBRUTINIB plasma
Homo sapiens
3.31 h
160 mg 2 times / day multiple, oral
ZANUBRUTINIB plasma
Homo sapiens

Funbound

ValueDoseCo-administeredAnalytePopulation
6%
320 mg 1 times / day steady-state, oral
ZANUBRUTINIB plasma
Homo sapiens

Sample Use Guides

In Vivo Use Guide
160 mg orally twice daily or 320 mg orally once daily; swallow whole with water and with or without food
Route of Administration: Oral
In Vitro Use Guide
The in vitro cell-based activity of zanubrutinib on BTK was evaluated in mantle cell lymphoma (MCL) cell lines and showed that BTK was inhibited with an IC50 of 1.8 nM. In vitro activity was evaluated on a panel of 23 hematologic cancer cell lines. Zanubrutinib demonstrated the most prominent growth inhibitory activity on 3 MCL cell lines and a diffuse large B-cell lymphoma (DLBCL) cell line.
Substance Class Chemical
Record UNII
AG9MHG098Z
Record Status Validated (UNII)
Record Version