Etranacogene dezaparvovec

Etranacogene dezaparvovec, sold under the brand name Hemgenix is a gene therapy used for the treatment of hemophilia B. Etranacogene dezaparvovec is an adeno-associated virus vector-based gene therapy which consists of a viral vector carrying a gene for clotting Factor IX. The gene is expressed in the liver to produce Factor IX protein, to increase blood levels of Factor IX and thereby limit bleeding episodes. Hemophilia B is a genetic bleeding disorder resulting from missing or insufficient levels of blood clotting Factor IX, a protein needed to produce blood clots to stop bleeding.

The most common adverse reactions include liver enzyme elevations, headache, mild infusion-related reactions and flu-like symptoms.

Etranacogene dezaparvovec was approved for medical use in the United States in November 2022, in the European Union in February 2023. and in Canada in October 2023.