Patent 7547675 was granted and assigned to Kyowa Hakko Kirin on June, 2009 by the United States Patent and Trademark Office.
The present invention relates to a chemically modified polypeptide in which at least one of hydroxyl groups in the polypeptide molecule is modified with a polyalkylene glycol derivative; a method for producing the modified polypeptide; a method of treatment using the modified polypeptide; use of the modified polypeptide; a pharmaceutical preparation comprising the modified polypeptide; and a composition for treatment comprising the modified polypeptide.