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Drug Guide
 
 

Pembrolizumab

 
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    IV infusion
    Pembrolizumab
    Keytruda 
    • Mechanism of Action
    • A monoclonal antibody directed against programmed cell death protein 1 (PD-1), a surface co-inhibitory receptor on circulating activated T cells, B cells and NK cells.
      PD-1 binds to two ligands (PD-L1 and PD-L2) and inhibit T cell receptor signalling, downregulating immune responses and promoting tolerance
      Many tumours express or overexpress PD-L1.
      Binding of anti-PD1 monoclonal antibodies to PD-1 leaves the ligand unable to bind, and therefore stimulates an ongoing immune response.

Clinical Use

    • Indication
    • Certain solid organ and haematologic malignancies with high levels of microsatellite instability (MSI). Malignancies of particular interest are melanoma, non-small cell lung cancer, renal cancer and bladder cancer, though this is a rapidly growing field.
    • Adverse Effects
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