Sorrento Therapeutics, Inc.
Engineered Variant Antibodies that Bind CD38

Abstract:

The present disclosure provides anti-CD38 antigen-binding proteins such as fully human anti-CD38 IgG class antibodies each having an altered amino acid sequence in their heavy chain variable region and/or light chain variable region compared to their wild type parent antibody. The present disclosure provides engineered CD38 binding proteins, particularly anti-CD38 variant antibodies, or antigen-binding portions thereof, that specifically bind CD38, and uses thereof. The disclosed anti-CD38 antigen-binding proteins and antibodies have been engineered to exhibit improved characteristics compared to the parent antibody, such as improved binding to CD38 antigen, improved binding to CD38-expressing cells, and/or higher levels of cytotoxicity. The anti-CD38 variant antibodies can cross-react (bind) with cynomolgus CD38.