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DrugPatentWatch concentrates deep knowledge on more than 6,400 small-molecule drugs and 2,300 generic ingredients from 1,700 branded and generic pharmaceutical companies and 700 suppliers, and more than 4,400 active and expired US patents and 74,000 international patents spanning 93 countries and regional patent offices. |
Patent: 6,749,868
Summary for Patent: 6,749,868
| Title: | Protein stabilized pharmacologically active agents, methods for the preparation thereof and methods for the use thereof |
| Abstract: | In accordance with the present invention, there are provided compositions and methods useful for the in vivo delivery of substantially water insoluble pharmacologically active agents (such as the anticancer drug paclitaxel) in which the pharmacologically active agent is delivered in the form of suspended particles coated with protein (which acts as a stabilizing agent). In particular, protein and pharmacologically active agent in a biocompatible dispersing medium are subjected to high shear, in the absence of any conventional surfactants, and also in the absence of any polymeric core material for the particles. The procedure yields particles with a diameter of less than about 1 micron. The use of specific composition and preparation conditions (e.g., addition of a polar solvent to the organic phase), and careful election of the proper organic phase and phase fraction, enables the reproducible production of unusually small nanoparticles of less than 200 nm diameter, which can be sterile-filtered. The particulate system produced according to the invention can be converted into a redispersible dry powder comprising nanoparticles of water-insoluble drug coated with a protein, and free protein to which molecules of the pharmacological agent are bound. This results in a unique delivery system, in which part of the pharmacologically active agent is readily bioavailable (in the form of molecules bound to the protein), and part of the agent is present within particles without any polymeric matrix therein. |
| Inventor(s): | Desai; Neil P. (Los Angeles, CA), Tao; Chunlin (Beverly Hills, CA), Yang; Andrew (Rosemead, CA), Louie; Leslie (Montebello, CA), Yao; Zhiwen (Culver City, CA), Soon-Shiong; Patrick (Los Angeles, CA), Magdassi; Shlomo (Jerusalem, IL) |
| Assignee: | American BioScience, Inc. (Santa Monica, CA) |
| Application Number: | 09/316,642 |
| Patent Claim Types: see list of patent claims | Delivery; |
Glossary
| Applicant | Tradename | Generic Name | Dosage | NDA | Approval Date | Type | RLD | Patent No. | Product | Substance | Delist_Flag | Patent Expiration | Patented / Exclusive Use | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Abraxis Bioscience | ABRAXANE | paclitaxel | FOR SUSPENSION; IV (INFUSION) | 021660 | Jan 7, 2005 | RX | Yes | 6,749,868 | Y | <disabled> | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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International Patent Family for Patent: 6,749,868
| Country | Document Number | Publication Date | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Austria | 264671 | May 15, 2004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Austria | 427739 | Apr 15, 2009 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Australia | 2002303626 | Apr 24, 2008 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Australia | 2003229084 | Dec 02, 2003 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| The preview shows a limited data set. Complete access is available with a Subscription | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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