Skip to main content
An official website of the United States government
Government Funding Lapse
Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted.

The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov.

Updates regarding government operating status and resumption of normal operations can be found at opm.gov.

anti-CD123/CD3 BiTE antibody SAR440234

A bispecific T-cell engager (BiTE) antibody comprised of a humanized Fc-silenced immunoglobulin G1 (IgG1) backbone and two single-chain variable fragments (scFvs): one directed against the CD3 antigen expressed on T lymphocytes and another directed against the alpha-chain of the interleukin-3 receptor (IL-3RA; CD123), with potential immunostimulating and antineoplastic activities. Upon intravenous infusion, anti-CD123/CD3 BiTE antibody SAR440234 binds to both CD3 expressed on T cells and CD123 expressed on tumor cells. This activates and redirects cytotoxic T lymphocytes (CTLs) to CD123-expressing tumor cells, leading to enhanced CTL-mediated elimination of CD123-expressing tumor cells. CD123 is overexpressed in a variety of hematological malignancies; its expression is low or absent in normal hematopoietic progenitors and stem cells.
Synonym:bispecific T-cell engager antibody SAR440234
CD123xCD3 bispecific T-cell engager SAR440234
Code name:SAR 440234
SAR-440234
SAR440234
Search NCI's Drug Dictionary