Pre-made Sulesomab benchmark antibody (Radiolabelled antibody, anti-NCA-90 (nonspecific cross- reacting antigens 90kDa glycoproteins, granulocyte cell antigen) therapeutic antibody) is a biosimilar expressed by mammalian cell line as a benchmark reference therapeutic antibody for biological drug disovery items including cell culture, assay development, animal model development, PK/PD model development (Pharmacokinetics & Pharmacodynamic) and mechanism of action (MOA) research.
Technetium (99mTc) sulesomab (trade name LeukoScan) is a radio-pharmaceutical composed of anti-human mouse monoclonal antibody[1] that targets the granulocyte associated NCA-9 cell antigen and a conjugated technetium-99m radionuclide. After intravenous administration, Leukoscan enables sensitive and specific whole body measurement of granulocyte infiltration and activation by gamma camera imaging of 99mTc-antibody bound cells.[2] Total clearance of LeukoScan from blood samples after administration and imaging has been reported at 48 hour time points indicating limited retention of the agent in circulation[3]