satralizumab   Click here for help

GtoPdb Ligand ID: 9093

Synonyms: Enspryng® | RG-6168 | RG6168 | SA-237 | SA237 | sapelizumab (deprecated INN) | satralizumab-mwge
Approved drug Immunopharmacology Ligand
satralizumab is an approved drug (Canada, Japan and FDA (2020), EMA (2021))
Compound class: Antibody
Comment: Satralizumab (previously referred to using the replaced INN sapelizumab) is an investigational humanized monoclonal antibody targeting the IL-6 receptor, with immunomodulatory potential. This antibody is an improved version of tocilizumab, with enhanced antigen-neutralizing ability and pharmacokinetics suitable for less frequent administration [2].
Annotated peptide sequences for this antibody are available from its IMGT/mAb-DB record. Peptide BLAST searches reveal identical matches between the heavy and light chain sequences as annotated in IMGT and SEQ IDs 26 and 29 respectively claimed in patent US8562991 [2]. This matches satralizumab to the Fv4-M73 construct in the patent.
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Selectivity at catalytic receptors
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Target Sp. Type Action Value Parameter Concentration range (M) Reference
Interleukin-6 receptor Primary target of this compound Hs Antibody Binding 8.9 pKd - 2
pKd 8.9 (Kd 1.4x10-9 M) [2]