Continuous release compositions made from hyaluronic acid, and therapeutic applications of same
US10842810B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2014 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | Aug 6, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/91
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention concerns polymer particles made from poly(lactic-co-glycolic acid) (PLGA) polymer, poly(lactic-co-glycolic acid)-polyethylene glycol-poly(lactic-co-glycolic acid) (PLGA-PEG-PLGA) copolymer, or the mixture of same, combined with hyaluronic acid molecules or hyaluronic acid salts, and the method for preparing same. The present invention also concerns injectable pharmaceutical or cosmetic compositions comprising such polymer particles, the method for preparing such compositions, and the use thereof for medical purposes, in particular for the prevention and/or treatment of musculoskeletal diseases, diseases and traumatic conditions of the skin, oral disorders, vaginal mucosa dryness and urinary infections or cystitis, dryness of the eye membrane and eye infections, obesity, and the use of same to combat ageing of the skin and/or for repairing the dermal tissue (mesotherapy).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.