Emicizumab

Emicizumab
Monoclonal antibody
TypeWhole antibody
SourceHumanized
TargetActivated factor IX, factor X
Clinical data
Trade namesHemlibra
Other namesACE910, RG6013, emicizumab-kxwh
AHFS/Drugs.comMonograph
MedlinePlusa622046
License data
Pregnancy
category
  • AU: B2
Routes of
administration
Subcutaneous
ATC code
Legal status
Legal status
  • AU: S4 (Prescription only)
  • CA: ℞-only / Schedule D
  • US: ℞-only
  • EU: Rx-only
  • In general: ℞ (Prescription only)
Identifiers
CAS Number
DrugBank
ChemSpider
  • none
UNII
KEGG
Chemical and physical data
FormulaC6434H9940N1724O2047S45
Molar mass145639.02 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). Emicizumab is a bispecific factor IXa- and factor X-directed antibody.

Emicizumab was first approved by the U.S. Food and Drug Administration (FDA) in November 2017 for routine prophylaxis in patients with hemophilia A who have developed factor VIII inhibitors. In October 2018, the FDA expanded approval, under the breakthrough therapy designation, to include all patients with hemophilia A, regardless of inhibitor status. The U.S. Food and Drug Administration (FDA) considers it to be a first-in-class medication. It is on the World Health Organization's List of Essential Medicines.