emicizumab   Click here for help

GtoPdb Ligand ID: 9744

Synonyms: ACE-910 | ACE910 | emicizumab-kxwh | Hemlibra® | RG6013
Approved drug
emicizumab is an approved drug (FDA (2017), EMA (2018))
Compound class: Antibody
Comment: Emicizumab, is a humanised bispecific antibody that binds blood coagulation factors IXa and X and acts as a factor VIII mimetic to bring about activation of factor X, and promote coagulation [2-3,5]. In essence, emicizumab works by bridging between coagulation factors IX and X and is the first-in-class drug for haemophilia A prevention with this mechanism of action.
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Bioactivity Comments
Binds activated factor IX (IXa) with an affinity constant (KD) of 1.52 μM, and activated factor X (Xa) with a KD of 0.98 μM [2].
Selectivity at enzymes
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
coagulation factor IX Hs Antibody Binding 5.8 pKd - 2
pKd 5.8 (Kd 1.58x10-6 M) [2]
Description: Determined by surface plasmon resonance analysis.
coagulation factor X Hs Antibody Binding 5.7 pKd - 2
pKd 5.7 (Kd 1.85x10-6 M) [2]
Description: Determined by surface plasmon resonance analysis.