Patent 11389541 was granted and assigned to Novartis on July, 2022 by the United States Patent and Trademark Office.
Described herein are drug delivery systems for delivering biologically active agents comprising primary or secondary amines, or a ring nitrogen atom of an azaheteroaryl ring, pharmaceutically acceptable salts thereof, drug delivery reagents related thereto, pharmaceutical compositions comprising the drug delivery systems, and the use of the drug delivery systems as sustained release therapeutics.