Emicizumab
| Monoclonal antibody | |
|---|---|
| Type | Whole antibody | 
| Source | Humanized | 
| Target | Activated factor IX, factor X | 
| Clinical data | |
| Trade names | Hemlibra | 
| Other names | ACE910, RG6013, emicizumab-kxwh | 
| AHFS/Drugs.com | Monograph | 
| License data | 
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| Pregnancy category | 
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| Routes of administration | Subcutaneous | 
| ATC code | |
| Legal status | |
| Legal status | |
| Identifiers | |
| CAS Number | |
| DrugBank | |
| ChemSpider | 
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| UNII | |
| KEGG | |
| Chemical and physical data | |
| Formula | C6434H9940N1724O2047S45 | 
| Molar mass | 145639.02 g·mol−1 | 
Emicizumab, sold under the brand name Hemlibra, is a humanized bispecific monoclonal antibody for the treatment of haemophilia A, developed by Genentech and Chugai (both organizations are subsidiaries of Hoffmann-La Roche). A Phase I clinical trial found that it was well tolerated by healthy subjects.
In November 2017, it was approved in the United States for treatment of haemophilia A in those who had developed resistance to other treatments. It was subsequently approved by the US FDA in April 2018 under the breakthrough therapy designation for treatment of haemophila A in those who have not developed resistance to other treatments. The U.S. Food and Drug Administration (FDA) considers it to be a first-in-class medication.
Studies indicate that emicizumab is a better therapy compared to the previous generations, due to subcutaneous administration and fewer injections, which reduces injection site reactions and makes therapy less troublesome.