Composition and method for the controlled release of metal cation-stabilized interferon
US5711968A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 1994 |
| Grant date | Jan 27, 1998 |
| Priority date | — |
| Expiry date | Jul 25, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07K14/56
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
This invention relates to a composition, and method of forming said composition, for the controlled release of interferon. The controlled release composition of this invention comprises a biocompatible polymer and particles of metal cation-stabilized interferon, wherein the particles are dispersed within the biocompatible polymer. The method of the invention, for producing a composition for the controlled release of interferon, includes dissolving a polymer in a polymer solvent to form a polymer solution, dispersing particles of metal cation stabilized-interferon particles in the polymer solution, and then solidifying the polymer to form a polymeric matrix containing a dispersion of the interferon particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.