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US5407683A Expired / Lapsed US ⏱️ 0.0 years remaining

Pharmaceutical solutions and emulsions containing taxol

Assignee: Research Corp Technologies Inc
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Filing: 1992-10-01
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Granted: 1995-04-18
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Expires: 2012-10-01
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Abstract

Abstract Compositions of matter are provided comprising a pharmaceutically effective amount of taxol or a tumor-active analog thereof solubilized in a pharmaceutically acceptable carrier comprising an oil having a dipole moment of between about 0.5 Debyes and about 2.0 Debyes, and preferably between about 1.6 and about 1.7 Debyes. Oils from marine organisms having an ether lipid as a major component thereof are preferred. Methods of solubilizing taxol or tumor-active taxol analogs in the pharmaceutically acceptable oils of this invention are provided comprising forming a first solution by dissolving taxol in a preliminary solvent such as an anhydrous alcohol, then adding sufficient oil to solubilize said first solution. Taxol-in-oil solutions are used to prepare oil-in-water emulsions for pharmaceutical use in anti-tumor therapy by means known to the art using known surfactants. Self-emulsifying glasses comprising taxol or tumor-active taxol analogs are also provided comprising a water-soluble, nonsurface active matrix compound and taxol-oil solutions. Emulsions are readily formed from such glasses by contacting the glass with an aqueous phase.

Inventors

  • 👤 Merrick L. Shively

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 17:17
CPC Classifications
A; A23; A23D; A23D7/00; A61; A61K; A61K31/00; A61K31/33; A61K31/335; A61K47/00; A61K47/06; A61K47/44; A61K9/00; A61K9/0012; A61K9/0019; A61K9/10; A61K9/107

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 24 words
A composition of matter comprising a pharmaceutically effective amount of taxol or a tumor-active analog thereof, completely solubilized in a squalene or squalane oil.
Claim 2
Dependent Claim 24 words
A composition of matter comprising a pharmaceutically effective amount of taxol or a tumor-active analog thereof, completely solubilized in a squalene or squalane oil.
Claim 3
Dependent Claim 22 words
The composition of matter of claim 1 comprising a pharmaceutically effective amount of taxol completely solubilized in said squalene or squalane oil.
Claim 4
Dependent Claim 15 words
The composition of matter of claim 2 which contains at least about 0.5 mg/ml taxol.
Claim 5
Dependent Claim 10 words
The composition of matter of claim 3 in emulsion form.
Claim 6
Dependent Claim 11 words
The emulsion of claim 4 which does not contain a surfactant.
Claim 7
Dependent Claim 21 words
A composition of matter consisting essentially of a pharmaceutically effective amount of taxol completely solubilized in a squalene or squalane oil.
Claim 8
Dependent Claim 21 words
A composition of matter consisting essentially of a pharmaceutically effective amount of taxol completely solubilized in a squalene or squalane oil.
Claim 9
Dependent Claim 13 words
The composition of matter of claim 6 containing about 10 mg/ml of taxol.
Claim 10
Independent Claim 98 words
A method for solubilizing taxol or a tumor-active taxol analog in a pharmaceutically acceptable carrier which is a squalene or squalane oil comprising the steps of: (a) solubilizing taxol or said taxol analog in an anhydrous alcohol; (b) mixing the alcohol solution of (a) with a sufficient amount of said pharmaceutically acceptable carrier to solubilize said alcohol solution therein; and (c) removing said anhydrous alcohol from said carrier solution formed in step (b) by rotary evaporation thereby resulting in a carrier solution in which said taxol or taxol analog is completely solubilized in said squalene or squalane oil.
Claim 11
Independent Claim 98 words
A method for solubilizing taxol or a tumor-active taxol analog in a pharmaceutically acceptable carrier which is a squalene or squalane oil comprising the steps of: (a) solubilizing taxol or said taxol analog in an anhydrous alcohol; (b) mixing the alcohol solution of (a) with a sufficient amount of said pharmaceutically acceptable carrier to solubilize said alcohol solution therein; and (c) removing said anhydrous alcohol from said carrier solution formed in step (b) by rotary evaporation thereby resulting in a carrier solution in which said taxol or taxol analog is completely solubilized in said squalene or squalane oil.

References Cited (Backward Citations)

US3723134A Cited
US5011532A Cited
US5032400A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1998-04-17 1998-10-17 1999-04-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2002-04-17 2002-10-17 2003-04-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2006-04-17 2006-10-17 2007-04-18 $7700.00 Window Closed / Lapsed

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