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 | L01FX | Other monoclonal antibodies | |
| 5 | L01FX25 |
| Active Ingredient | Description | |
|---|---|---|
| Mosunetuzumab |
Mosunetuzumab is an anti-CD20/CD3 T-cell engaging bispecific antibody targeting CD20-expressing B-cells. It is a conditional agonist; targeted B-cell killing is observed only upon simultaneous binding to CD20 on B-cells and CD3 on T-cells. Engagement of both arms of mosunetuzumab results in the formation of an immunologic synapse between a target B cell and a cytotoxic T cell leading to T-cell activation. Subsequent directed release of perforin and granzymes from T-cell activation through the immunologic synapsis induce B-cell lysis leading to cell death. |
