NCIt definition : An orally bioavailable, small-molecule inhibitor of Bruton's tyrosine kinase (BTK)
with potential antineoplastic activity. Upon oral administration, ibrutinib binds
to and irreversibly inhibits BTK activity, thereby preventing both B-cell activation
and B-cell-mediated signaling. This leads to an inhibition of the growth of malignant
B cells that overexpress BTK. BTK, a member of the src-related BTK/Tec family of cytoplasmic
tyrosine kinases, is required for B cell receptor signaling, plays a key role in B-cell
maturation, and is overexpressed in a number of B-cell malignancies. The expression
of BTK in tumor cells is also associated with increased proliferation and survival.;
UNII : 1X70OSD4VX;
InChIKey : XYFPWWZEPKGCCK-GOSISDBHSA-N;
CAS number : 936563-96-1;
Drug name : Imbruvica;
Molecule name : PCI-32765; CRA-032765; CRA 032765; PCI 32765;