The target of votumumab is CTAA16.88, a complex of cytokeratin polypeptides in the molecular weight range of 35 to 43 kDa, which is expressed in colorectal tumors.[4]
^Hendriks BS, Gaddy DF (2017). "Radiolabeled Antibody-Based Imaging in Clinical Oncology". In Olivier Jr KJ, Hurvitz SA (eds.). Antibody-Drug Conjugates: Fundamentals, Drug Development, and Clinical Outcomes to Target Cancer. Hoboken, New Jersey: John Wiley & Sons. p. 441. ISBN978-1-119-06084-0.
^"Public Statement on HumaSPECT"(PDF). European Medicines Agency (EMA_. 23 February 2004. Archived from the original(PDF) on 2007-06-10. Non-renewal of the marketing authorisation in the European Union