NCIt definition : A bispecific T-cell engager (BiTE) antibody composed of two single-chain variable
fragments (scFv), one directed against the tumor-associated antigen (TAA) human B-cell
maturation antigen (BCMA; TNFRSF17), and one that is directed against the CD3 antigen
found on T-lymphocytes, with potential immunostimulating and antineoplastic activities.
Upon administration of anti-BCMA/CD3 T-cell engaging antibody CC-93269, this bispecific
antibody binds to both CD3 on cytotoxic T-lymphocytes (CTLs) and BCMA found on BCMA-expressing
tumor cells. This activates and redirects CTLs to BCMA-expressing tumor cells, which
results in the CTL-mediated death of BCMA-expressing tumor cells. BCMA, a member of
the tumor necrosis factor receptor superfamily that is specifically overexpressed
on malignant plasma cells, plays a key role in promoting plasma cell survival.;