Sustained-release injection formulation containing epidermal growth factor, poly-L-lactic acid filler and hyaluronic acid filler conjugate, and preparation method thereof

摘要

The present invention includes a conjugate of epidermal growth factor (EGFR) and poly-L-lactic acid (hereinafter referred to as "PLLA") filler and hyaluronic acid (hereinafter referred to as "HA"), PLLA It relates to a sustained-release injection containing double microcapsules of a biodegradable polymer capable of controlling the release rate of the drug and a method for preparing the same.