NCIt definition : A preparation of autologous T-lymphocytes engineered to express a chimeric antigen
receptor (CAR) that is nanobody-based and specific for the two tumor-associated antigens
(TAAs) cluster of differentiation 19 (CD19) and CD20, with potential immunostimulating
and antineoplastic activities. Upon administration, the autologous anti-CD19/CD20
bispecific nanobody-based CAR-T cells target and bind to CD19- and CD20-expressing
tumor B-cells. This induces selective toxicity in tumor B-cells expressing these TAAs.
Both CD19 and CD20 are B-cell-specific cell surface antigens overexpressed in B-cell
lineage malignancies. Targeting both CD19 and CD20 may prevent tumor cell antigen
escape and relapse.;