Conjugate having a cleavable linkage for use in a liposome
US6984396B2 · kind B2 · utility
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10References
9Claims
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Key dates
| Filing date | Jan 25, 2002 |
| Grant date | Jan 10, 2006 |
| Priority date | — |
| Expiry date | Nov 16, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2984
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Conjugates of a hydrophobic moiety, such as a lipid, linked through a cleavable dithiobenzyl linkage to a therapeutic agent are described. The dithiobenzyl linkage is susceptible to cleavage by mild thiolysis, resulting in release of the therapeutic agent in its original form. The linkage is stable under nonreducing conditions. The conjugate can be incorporated into liposomes for administration in vivo and release of the therapeutic agent in response to endogeneous in vivo reducing conditions or in response to administration of an exogeneous reducing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.