Medical Dictionary


noun aba·tac·ept \ˌab-ə-ˈta-ˌsept\

Medical Definition of abatacept

  1. :  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.

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