Bemcentinib

Bemcentinib

Clinical data
Other names	BGB324; R428
Legal status
Legal status	Investigational
Identifiers
IUPAC name 1-(6,7-Dihydro-5H-benzo[2,3]cyclohepta[2,4-d]pyridazin-3-yl)-3-N-[(7S)-7-pyrrolidin-1-yl-6,7,8,9-tetrahydro-5H-benzo[7]annulen-3-yl]-1,2,4-triazole-3,5-diamine
CAS Number	1037624-75-1
PubChem CID	46215462
UNII	0ICW2LX8AS
KEGG	D11438
CompTox Dashboard (EPA)	DTXSID70673109
Chemical and physical data
Formula	C30H34N8
Molar mass	506.658 g·mol−1
3D model (JSmol)	Interactive image
SMILES Nc1nc(Nc2ccc3c(c2)CC[C@H](N2CCCC2)CC3)nn1-c1cc2c(nn1)-c1ccccc1CCC2
InChI InChI=1S/C30H34N8/c31-29-33-30(32-24-13-10-20-11-14-25(15-12-22(20)18-24)37-16-3-4-17-37)36-38(29)27-19-23-8-5-7-21-6-1-2-9-26(21)28(23)35-34-27/h1-2,6,9-10,13,18-19,25H,3-5,7-8,11-12,14-17H2,(H3,31,32,33,36)/t25-/m1/s1 Key:KXMZDGSRSGHMMK-RUZDIDTESA-N

Bemcentinib, also known as BGB324 or R428, is an experimental oral small molecule that is an inhibitor of AXL kinase. Bemcentinib was licensed from Rigel Pharmaceuticals by BerGenBio and currently undergoing six Phase II trials in various solid and hematological tumors as monotherapy and in combination with immunotherapy, chemotherapy, and targeted therapeutics.

Function

Bemcentinib targets and binds to the intracellular catalytic kinase domain of AXL receptor tyrosine kinase and inhibits its activity. Increase in AXL function has been linked to key mechanisms of drug resistance and immune escape by tumor cells, leading to aggressive metastatic cancers. In addition, BGB324 enhances sensitivity to various therapies including chemotherapy, immunotherapy and several targeted therapeutics.

Clinical trials

Bemcentinib is currently undergoing Phase II clinical trials for non-small-cell lung cancer (NSCLC), triple-negative breast cancer (TNBC), acute myeloid leukemia /myelodysplastic syndrome (AML/MDS), melanoma and metastatic pancreatic cancer.

COVID-19

In April 2020 Bemcentinib became the first candidate to be selected as part of the UK Government's ACCORD (Accelerating COVID-19 Research & Development) for Phase II clinical trial in patients with COVID-19.