NCIt definition : A preparation of ex vivo expanded, autologous CD4 and CD8 positive antigen presenting
T-cells (T-APCs), genetically modified with a transgene encoding a truncated form
of human cluster of differentiation 19 (CD19t), with potential immunostimulating activity.
Upon infusion, autologous CD19t-expressing T-APCs may stimulate the proliferation
and activation of preadministered therapeutic CD19-targeted chimeric antigen receptor
T-cells (CAR-T). This may both improve the persistence of the therapeutic CAR-T-cells
and prevent relapse in patients with CD19 positive leukemia or lymphoma. CD19 is a
B-cell specific cell surface antigen that is expressed in all B-cell lineage malignancies.;