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NCI Dictionary of Cancer Terms

yttrium Y 90 epratuzumab tetraxetan  listen  (IH-tree-um … eh-pruh-TOO-zoo-mab teh-TRAK-seh-tan)

  A substance being studied in the treatment of certain types of B-cell cancer. Epratuzumab is a monoclonal antibody that binds to a protein called CD22, which is found on the surface of B cells. It is linked to a radioactive substance called yttrium Y 90, which may help kill cancer cells. Yttrium Y 90 epratuzumab tetraxetan is a type of radioimmunoconjugate.