Technetium (99mTc) votumumab
| Monoclonal antibody | |
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| Type | Whole antibody |
| Source | Human |
| Target | tumor antigen CTAA16.88 |
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Technetium (99mTc) votumumab (trade name HumaSPECT) is a human monoclonal antibody labelled with the radionuclide technetium-99m. It was developed for the detection of colorectal tumors, but has never been marketed.
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.