Monoclonal antibody | |
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Type | Fab fragment |
Source | Mouse |
Target | 5T4 |
Clinical data | |
ATC code |
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Identifiers | |
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ChemSpider |
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UNII | |
Chemical and physical data | |
Formula | C3255H5025N855O1050S18 |
Molar mass | 73513.02 g·mol−1 |
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Naptumomab estafenatox (ABR-217620) is a drug being developed for the treatment of various types of cancer like non-small cell lung carcinoma[1] and renal cell carcinoma.[2]
Chemically, it is a fusion protein consisting of the antigen-binding fragment (Fab) of a monoclonal antibody with the superantigen staphylococcal enterotoxin A (SEA/E-120, "estafenatox").[3] The Fab binds to 5T4, an antigen expressed by various tumor cells, and the superantigen induces an immune response by activating T lymphocytes.[4]