tocilizumab   Click here for help

GtoPdb Ligand ID: 6881

Synonyms: Actemra® | R-1569 | RG-1569 | RHPM-1 | RoActemra®
Approved drug Immunopharmacology Ligand
tocilizumab is an approved drug (FDA (2010), EMA (2009))
Compound class: Antibody
Comment: Tocilizumab is an anti-IL-6 receptor mAb, with immunosuppressive action [11] that is approved for chronic autoimmune indications.
Annotated peptide sequences for this antibody are available from its IMGT/mAb-DB record.
Qyuns Therapeutics have a potential tocilizumab biosimilar (QX003S) in Phase 1 evaluation for rheumatoid arthritis (trial registry number ChiCTR1900021808).

SARS-CoV-2 and COVID-19: In early March 2020, China's National Health Commission issued guidance that allows use of tocilizumab to treat patients with serious COVID-19-induced lung damage. Tocilizumab is predicted to mitigate against the uncontrolled immune response that is triggered by SARS-CoV-2 infection [3,15] in some patients and which leads to potentially life-threatening damage to the lungs and other organs. Clinical trials are beginning to reveal outcomes (Oct 2020), but the level of benefit remains unclear [4-5,12-13] and requires further investigations. Differences between the studies (timing of treatment, severity of disease at initiation of treatment etc.) make it difficult to compare results and form a solid conclusion.
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Bioactivity Comments
Unfortunately, we have been unable to find publicly available data providing a binding affinity for this antibody at its molecular target.
Selectivity at catalytic receptors
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
Interleukin-6 receptor Primary target of this compound Hs Antibody Binding 8.6 pKd -
pKd 8.6 (Kd 2.54x10-9 M)