Cross-linked microparticles and their use as therapeutic vehicles
US5955108A · kind A · utility
32Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1997 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Jun 16, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K47/643
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A sterile powder comprising microparticles, 0.1 to 50 .mu.m in diameter, obtainable by spray-drying and cross-linking a water-soluble material having free functional groups, is characterized in that the microparticles are hydrophilic, can be reconstituted in water to give a monodisperse suspension, and have retained said groups available for derivatization. The particles are linked to drugs or other functional molecules, and used as vehicles in therapy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.