PEG-poly(ortho ester) graft copolymers and pharmaceutical compositions
US7456213B2 · kind B2 · utility
2Cited by
2References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2006 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Apr 24, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2650/42
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
This invention relates to graft copolymer delivery vehicles comprising a polyethyleneglycol-poly(ortho ester), and to controlled release pharmaceutical compositions comprising the delivery vehicle and an active agent. The graft copolymer delivery vehicles may be thermogels graft copolymers. The pharmaceutical compositions may be in the form of a topical, syringable, or injectable formulation for local controlled delivery of the active agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.