Atezolizumab (1 brand name, 1 dosage form, 1 route)
Available dosage forms: INJECTABLE.
Routes of administration: INJECTION.
Brand Names
- TECENTRIQ
Contraindications
None.
Adverse Reactions
The following clinically significant adverse reactions are described elsewhere in the labeling: Severe and Fatal Immune-Mediated Adverse Reactions [see Warnings and Precautions (5.1)] Infusion-Related Reactions [see Warnings and Precautions (5.2)] Complications of Allogeneic HSCT after PD-1/PD-L1 Inhibitors [see Warnings and Precautions (5.3)]
Mechanism of Action
PD L1 may be expressed on tumor cells and/or tumor infiltrating immune cells and can contribute to the inhibition of the anti-tumor immune response in the tumor microenvironment. Binding of PD L1 to the PD 1 and B7.1 receptors found on T cells and antigen presenting cells suppresses cytotoxic T-cell activity, T-cell proliferation and cytokine production. Atezolizumab is a monoclonal antibody that binds to PD L1 and blocks its interactions with both PD 1 and B7.1 receptors. This releases the PD L1/PD 1 mediated inhibition of the immune response, including activation of the anti-tumor immune response without inducing antibody-dependent cellular cytotoxicity. In syngeneic mouse tumor models, blocking PD L1 activity resulted in decreased tumor growth. In mouse models of cancer, dual inhibition of the PD-1/PD-L1 and MAPK pathways suppresses tumor growth and improves tumor immunogenicity through increased antigen presentation and T cell infiltration and activation compared to targeted therapy alone.