Patent attributes
The present invention provides a PEGylated IFN-β variant and a composition for preventing or treating hyperproliferative diseases, inflammatory diseases, autoimmune diseases or viral infectious diseases, the composition comprising the PEGylated IFN-β variant as an effective ingredient. The PEGylated IFN-β variant of the present invention has an excellent anti-viral efficacy, immune regulatory function and anti-cell growth efficacy by virtue of better pharmacokinetic properties compared to native IFN-β and non-PEGylated IFN-β variants, and therefore can be used usefully against various diseases. The present invention provides good patient convenience in terms of administration due to exhibition of an excellent pharmacological activity effect upon administration and a significant increase of half-life in blood over existing interferon formulations.

