Sustained-release preparation capable of releasing a physiologically active substance
US6699500B2 · kind B2 · utility
148Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2000 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Mar 7, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P35/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Disclosed is a sustained-release preparation comprising 1) a polymer of lactic acid having a weight-average molecular weight of about 25,000 to about 60,000 and 2) a physiologically active substance, and which releases the physiologically active substance over a period of at least about 5 months; the sustained-release preparation shows an almost continuous zero order release of the physiologically active substance over a period of as long as about 5 months.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.