Atezolizumab

Atezolizumab, sold under the brand name Tecentriq among others, is a monoclonal antibody medication used to treat urothelial carcinoma, non-small cell lung cancer (NSCLC), small cell lung cancer (SCLC), hepatocellular carcinoma and alveolar soft part sarcoma, but discontinued for use in triple-negative breast cancer (TNBC). It is a fully humanized, engineered monoclonal antibody of IgG1 isotype against the protein programmed cell death-ligand 1 (PD-L1).

Atezolizumab
Antigen-binding fragment of atezolizumab (blue) in complex with PD-L1 (pink).PDB: 5X8L​.
Monoclonal antibody
TypeWhole antibody
SourceHumanized
TargetPD-L1
Clinical data
Trade namesTecentriq, Tecentriq SC
Other namesMPDL3280A, RG7446
AHFS/Drugs.comMonograph
MedlinePlusa616035
License data
Pregnancy
category
  • AU: D
Routes of
administration		Intravenous infusion, subcutaneous
Drug classAntineoplastic agent
ATC code
Legal status
Legal status
  • AU: S4 (Prescription only)
  • CA: ℞-only
  • UK: POM (Prescription only)
  • US: ℞-only
  • EU: Rx-only
Identifiers
CAS Number
DrugBank
ChemSpider
  • none
UNII
KEGG
Chemical and physical data
FormulaC6446H9902N1706O1998S42
Molar mass144612.59 g·mol−1

The most common side effects when used on its own include tiredness, reduced appetite, nausea, vomiting, cough, difficulty breathing, diarrhea, rash, fever, pain in the back, joints, muscles and bones, weakness, itching and urinary tract infection. The most common side effects when used with other cancer medicines include peripheral neuropathy (nerve damage in the hands and feet), nausea, anemia (low red blood cell counts), neutropenia (low white blood cell counts), thrombocytopenia (low platelet counts), rash, tiredness, constipation, reduced appetite, diarrhea, and cough.

Atezolizumab is the first PD-L1 inhibitor approved by the U.S. Food and Drug Administration (FDA).

In the European Union, atezolizumab is the first PD-(L)1 cancer immunotherapy for subcutaneous injection.

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