In vitro IL-2 binding blockade on T-lymphocytes (human/primate cells) and human tissue binding; no in vivo model
“Receptor blocking profiles of Simulect and its murine progenitor RFT5 were comparable; they demonstrate equal potency in their ability to inhibit the binding of radiolabelled IL-2 on the IL-2 receptor expressed on T-lymphocytes.”
IL-2 binding and lymphocyte proliferation completely inhibited at clinically achieved concentrations
“The binding of IL-2 and consequentially lymphocyte proliferation are completely inhibited at concentrations achieved in the clinical setting, thus indicating the successful grafting and expression of the variable regions of the heavy and light chain.”