Medical Definition of abatacept
: a protein drug that inhibits the activation of T cells and is administered by injection in the treatment of rheumatoid arthritis ◆Abatacept is a synthetic protein produced by recombinant DNA technology in which the extracellular domain of a receptor found on the surface of T cells is linked to a modified portion of IgG. Abatacept is marketed under the trademark Orencia.
Seen and Heard
What made you want to look up abatacept? Please tell us where you read or heard it (including the quote, if possible).