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.

yttrium Y 90 epratuzumab

A radioimmunoconjugate consisting of the anti-CD22 monoclonal antibody epratuzumab chelated to the radioisotope yttrium-90 (Y 90). Yttrium Y 90 epratuzumab binds to tumor cells expressing CD22, delivering a cytotoxic dose of beta radiation. Epratuzumab is a humanized version of the murine monoclonal antibody LL2; CD22 is a B cell-restricted antigen present on the surfaces of mature B cells.
Synonym:Y 90 Humanized Monoclonal Antibody LL2
Yttrium Y 90 Humanized Monoclonal Antibody LL2
Search NCI's Drug Dictionary