The World Health Organization's ATC classification organizes medical drugs based on therapeutic properties, chemical composition, and anatomy. It helps make essential medicines readily available globally and is widely used in the pharmaceutical industry.
| Level | Code | Title | |
|---|---|---|---|
1
|
L | Antineoplastic and immunomodulating agents | |
2
|
L01 | Antineoplastic agents | |
3
|
L01F | Monoclonal antibodies and antibody drug conjugates | |
4
|
L01FD | HER2 (Human Epidermal Growth Factor Receptor 2) inhibitors | |
5
|
L01FD07 |
| Active Ingredient |
|---|
|
Zanidatamab is a dual HER2-targeted bispecific antibody that simultaneously binds extracellular domains 2 and 4 on separate HER2 monomers (binding in trans). Binding of zanidatamab with HER2 results in internalization leading to a reduction of the receptor on the cell surface. Zanidatamab induces complement-dependent cytotoxicity (CDC), antibody-dependent cellular cytotoxicity (ADCC) and antibody-dependent cellular phagocytosis (ADCP). These mechanisms result in tumour growth inhibition and tumour cell death. |