Emicizumab
Emicizumab (trade name Hemlibra) is a humanized bispecific antibody for the treatment of haemophilia A, developed by Chugai (a subsidiary of Roche).[1] A Phase I clinical trial found that it was well tolerated by healthy subjects.[2]
Monoclonal antibody | |
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Type | Whole antibody |
Source | Humanized |
Target | Activated factor IX, factor X |
Clinical data | |
Trade names | Hemlibra |
Other names | ACE910, emicizumab-kxwh |
Routes of administration | Subcutaneous injection |
ATC code | |
Legal status | |
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Identifiers | |
CAS Number | |
ChemSpider |
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UNII | |
KEGG | |
Chemical and physical data | |
Formula | C6434H9940N1724O2047S45 |
Molar mass | 145639.02 g·mol−1 |
In November 2017, it was approved in the United States for treatment of haemophilia A in those who had developed resistance to other treatments.[3] 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.[4]
Mechanism of action
Emicizumab binds to both the activated coagulation factor IX and to factor X, mediating the activation of the latter. This is normally the function of coagulation factor VIII, which is missing in haemophilia A patients.[1][5]
References
- Spreitzer H (4 July 2016). "Neue Wirkstoffe - Emicizumab". Österreichische Apothekerzeitung (in German) (14/2016).
- Uchida N, Sambe T, Yoneyama K, Fukazawa N, Kawanishi T, Kobayashi S, Shima M (March 2016). "A first-in-human phase 1 study of ACE910, a novel factor VIII-mimetic bispecific antibody, in healthy subjects". Blood. 127 (13): 1633–41. doi:10.1182/blood-2015-06-650226. PMC 4817308. PMID 26626991.
- "Roche hemophilia drug wins FDA nod, with a warning". Reuters. 17 November 2017.
- "FDA Grants Roche Breakthrough Therapy Designation on Hemophilia Drug". BioPharm International. UBM. 19 April 2018. Retrieved 20 April 2018.
- Shima M, Hanabusa H, Taki M, Matsushita T, Sato T, Fukutake K, et al. (May 2016). "Factor VIII-Mimetic Function of Humanized Bispecific Antibody in Hemophilia A". The New England Journal of Medicine. 374 (21): 2044–53. doi:10.1056/NEJMoa1511769. PMID 27223146.