INJECTABLE STERILE AQUEOUS FORMULATION BASED ON CROSSLINKED HYALURONIC ACID AND ON HYDROXYAPATITE, FOR THERAPEUTIC USE.

摘要

The subject matter of the present invention is a ready-to-use, resorbable, injectable, sterile aqueous formulation used for therapeutic purposes, in the form of a particulate cohesive viscoelastic gel comprising i) crosslinked hyaluronic acid, or a salt thereof, at a concentration of between 1% and 4% (weight/volume), the crosslinking carried out making it possible to obtain a crosslinked hyaluronic acid-based gel having a structure termed cohesive, and ii) hydroxyapatite, at a concentration of between 10% and 70% (weight/volume), said hydroxyapatite being in the form of particles having an average size of less than or equal to 650 µm; wherein said injectable sterile aqueous formulation has viscoelastic properties such that Tanδ at the frequency of 1 Hz is less than or equal to 0.60.