Elapegademase

Elapegademase is a PEGylated recombinant adenosine deaminase. It can be defined molecularly as a genetically modified bovine adenosine deaminase with a modification in cysteine 74 for serine and with about 13 methoxy polyethylene glycol chains bound via carbonyl group in alanine and lysine residues. Elapegademase is generated in E. coli, developed by Leadiant Biosciences and FDA approved on October 5, 2018.

Elapegademase is approved for the treatment of adenosine deaminase severe combined immune deficiency (ADA-SCID) in pediatric and adult patients. This condition was previously treated by the use of bovine pegamedase as part of an enzyme replacement therapy.

ADA-SCID is a genetically inherited disorder that is very rare and characterized by a deficiency in the adenosine deaminase enzyme. The patients suffering from this disease often present with a compromised immune system. This condition is characterized by very low levels of white blood cells and immunoglobulin levels which results in severe and recurring infections.