Biodegradable lipids for the delivery of active agents

US11071784B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11071784-B2
Application numberUS-201916520183-A
CountryUS
Kind codeB2
Filing dateJul 23, 2019
Priority dateDec 7, 2011
Publication dateJul 27, 2021
Grant dateJul 27, 2021

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

The present invention relates to a cationic lipid having one or more biodegradable groups located in a lipidic moiety (e.g., a hydrophobic chain) of the cationic lipid. These cationic lipids may be incorporated into a lipid particle for delivering an active agent, such as a nucleic acid. The invention also relates to lipid particles comprising a neutral lipid, a lipid capable of reducing aggregation, a cationic lipid of the present invention, and optionally, a sterol. The lipid particle may further include a therapeutic agent such as a nucleic acid.

First claim

Opening claim text (preview).

What is claimed is: 1. The compound

Assignees

Inventors

Classifications

  • Natural ribonucleic acids, i.e. containing only riboses attached to adenine, guanine, cytosine or uracil and having 3'-5' phosphodiester links · CPC title

  • substituted by singly bound oxygen or sulfur atoms · CPC title

  • substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals · CPC title

  • comprising non-phosphatidyl surfactants as bilayer-forming substances, e.g. cationic lipids or non-phosphatidyl liposomes coated or grafted with polymers (lipids as modifying agents {A61K47/543}) · CPC title

  • Diamines · CPC title

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Frequently asked questions

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What does patent US11071784B2 cover?
The present invention relates to a cationic lipid having one or more biodegradable groups located in a lipidic moiety (e.g., a hydrophobic chain) of the cationic lipid. These cationic lipids may be incorporated into a lipid particle for delivering an active agent, such as a nucleic acid. The invention also relates to lipid particles comprising a neutral lipid, a lipid capable of reducing aggreg…
Who is the assignee on this patent?
Alnylam Pharmaceuticals Inc
What technology area does this patent fall under?
Primary CPC classification A61K47/18. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue Jul 27 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).