Liposomes useful for drug delivery to the brain

US9737528B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9737528-B2
Application numberUS-201615296536-A
CountryUS
Kind codeB2
Filing dateOct 18, 2016
Priority dateMay 3, 2004
Publication dateAug 22, 2017
Grant dateAug 22, 2017

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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 provides liposome compositions containing substituted ammonium and/or polyanion, and optionally with a desired therapeutic or imaging entity. The present invention also provide methods of making the liposome compositions provided by the present invention. The present invention also provides for the methods and kits for the delivery of liposomal compositions to the brain.

First claim

Opening claim text (preview).

What is claimed is: 1. An injectable liquid pharmaceutical composition comprising irinotecan sucrose octasulfate encapsulated within liposomes comprising DSPC, cholesterol and PEG-DSPE in a molar ratio of 3:2:0.015, the liposomes having a diameter of 95-110 nm and encapsulating a total amount of irinotecan in 500-550 mg irinotecan hydrochloride per mmol of the total liposome phospholipids, and the pharmaceutical composition having a potency of 20-80 mg of total irinotecan per mL of the pharmaceutical composition.

Assignees

Inventors

Classifications

  • the tumour determinant being from breast cancer cell · CPC title

  • the liposome being modified on its surface by an antibody · CPC title

  • liposomes, polymersomes, e.g. immunoliposomes · CPC title

  • Synthetic bilayered vehicles, e.g. liposomes or liposomes with cholesterol as the only non-phosphatidyl surfactant · CPC title

  • Non-conventional liposomes, e.g. PEGylated liposomes or liposomes coated or grafted with polymers (liposomes as conjugates {A61K47/6911}) · CPC title

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Frequently asked questions

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What does patent US9737528B2 cover?
The present invention provides liposome compositions containing substituted ammonium and/or polyanion, and optionally with a desired therapeutic or imaging entity. The present invention also provide methods of making the liposome compositions provided by the present invention. The present invention also provides for the methods and kits for the delivery of liposomal compositions to the brain.
Who is the assignee on this patent?
Ipsen Biopharm Ltd
What technology area does this patent fall under?
Primary CPC classification A61K31/4745. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue Aug 22 2017 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).