Baxter International Inc.

Baxter Healthcare Sa

University of Nebraska

James E Kipp

Mark Joseph Doty

Christine L Rebbeck

Joseph Chung Tak Wong

Barrett E Rabinow

Sean Brynjelsen

Howard E Gendelman

Ton That Hai

Shmuel Sternberg

Jane Werling

Krishnaswamy Narayanan

Nailesh Jayswal

Chong-Son Sun

Pavlos Papadopoulos

Reagan Miller

Lakshmy Nair

Bennett Melnick

Jamie T Konkel

Joseph Chung Take Wong

Randy White

Monte Wisler

Rhonda Garcia

Neervalur V Raghavan

Rajaram Sriram

Jan Y Eilert

Richard Hammond

Glenn Wehrmann

Berthold Roessler

The present invention is concerned with delivering a pharmaceutical composition to the brain of a mammalian subject for treating brain diseases or disorders. The process includes the steps of: (i) providing a dispersion of the pharmaceutical composition as particles having an average particle size of from about 150 nm to about 100 microns, and (ii) administering the dispersion to the mammalian subject for delivery to the brain of a portion of the pharmaceutical composition by cells capable of reaching the brain. The dispersion of the pharmaceutical composition as particles, for example, can be phagocytized or adsorbed by the cells prior or subsequent to administration into the mammalian subject. The dispersion of the pharmaceutical composition can be administered to the central nervous system or the vascular system. After administration, the loaded cells transport the pharmaceutical composition as particles into the brain.

Method for delivering drugs to the brain

The present invention is concerned with delivering a pharmaceutical composition to a tissue target of a mammalian subject for treating brain diseases or disorders. The process includes the steps of: (i) providing a dispersion of the pharmaceutical composition as particles having an average particle size of from about 150 nm to about 100 microns, and (ii) administering the dispersion to the mammalian subject for delivery to the tissue target of a portion of the pharmaceutical composition by cells capable of reaching the tissue target. The dispersion of the pharmaceutical composition as particles, for example, can be phagocytized or adsorbed by the cells prior or subsequent to administration into the mammalian subject. The dispersion of the pharmaceutical composition can be administered to the central nervous system or the vascular system. After administration, the loaded cells transport the pharmaceutical composition as particles into the tissue target.

Method for delivering particulate drugs to tissues

The present invention relates to a process for preparing submicron sized nanoparticles of a poorly water soluble compound by lyophilizing a dispersion or microdispersion of a multiphase system having an organic phase and an aqueous phase, the organic phase having the poorly water soluble organic compound therein. The method is preferably used to prepare nanoparticles of a poorly water soluble, pharmaceutically active compound suitable for in vivo delivery, particularly by parenteral routes.

Preparation of submicron sized nanoparticles via dispersion lyophilization

The present invention is concerned with a method of preparing and delivering small particles of a pharmaceutically active material to a mammalian subject for treating diseases or disorders. A preferred embodiment entails: (i) the collection of tissue cells from an animal donor, (ii) selective or non-selective growth of these cells in a cell culture medium to which is added solid particles of a therapeutically active compound, mostly free of a drug carrier (about 10% or less, by weight), and having an average particle size of less than about 100 microns, (iii) contacting the cells in the cell culture medium with the solid particles of therapeutically active compound causing the particles to be taken up by the cells into either the intracellular compartment of the cultured cells, attachment of the active compound as particles to the periphery of such cells, or a combination of intracellular uptake and attachment to the cell surface, (iv) optionally, isolation and/or resuspension of the cells prepared in steps i through iii, (v) administering the cells to the mammalian subject. The pharmaceutically active material can be administered intravenously, intramuscularly, subcutaneously, intradermally, intra-articularly, intrathecally, epidurally, intracerebrally, via buccal route, rectally, topically, transdermally, orally, intranasally, via pulmonary route, intraperitoneally, or combinations thereof. After administration, the loaded cells transport the pharmaceutical composition as particles.

Ex-vivo application of solid microparticulate therapeutic agents

The present invention relates to compositions of submicron- to micron-size particles of antimicrobial agents. More particularly the invention relates to a composition of an antimicrobial agent that renders the agent potent against organisms normally considered to be resistant to the agent. The composition comprises an aqueous suspension of submicron- to micron-size particles containing the agent coated with at least one surfactant selected from the group consisting of: ionic surfactants, non-ionic surfactants, biologically derived surfactants, and amino acids and their derivatives. The particles have a volume-weighted mean particle size of less than 5 &#x3bc;m as measured by laser diffractometry.

Method for treating infectious organisms normally considered to be resistant to an antimicrobial drug

Stable pharmaceutical formulations and methods of making same are provided. In a general embodiment, the present disclosure provides a method of making a stable pharmaceutical formulation comprising adding one or more vitrifying additives to an aqueous pharmaceutical solution to raise the glass transition temperature of the aqueous pharmaceutical solution. The aqueous pharmaceutical solution can be cooled to a temperature of about &#x2212;50&#xb0; C. to about &#x2212;10&#xb0; C. The vitrifying additive enhances the formation of a glass or amorphous solid of the aqueous pharmaceutical solution at cryogenic temperatures (&#x2212;50 to &#x2212;10&#xb0; C.), and the pharmaceutical formulation can be thawed to liquid form and administered to a mammalian subject.

Stable pharmaceutical formulations

The present invention is directed to novel compounds, methods of manufacture and methods of use. The present invention is also directed to solid drug/active agent particles having one or more of the compounds of the present invention associated with the surface thereof. The compounds of the present invention are comprised of a non-polar polyether covalently linked to an anionic sulfonate group. The compounds have an amphipathic quality and preferably, are surface active. Such compounds are preferably useful as surface-active agents to coat and stabilize dispersions of particles in a continuous liquid medium. These surface-active agents may be applied in the stabilization of suspensions, emulsions, or liposome formulations intended for pharmaceutical, medical, cosmetic, or agricultural use. The particles that can be prepared by a variety of methods and will preferably comprise a pharmaceutical agent. Pharmaceutical compositions of the present invention can be used to treat a myriad of conditions and can be administered by many routes, including intravenous, intramuscular, subcutaneous, intrathecal, subdural, intracameral, intracerebral, intralesional, topical, oral, buccal, rectal, transcutaneous, pulmonary, and nasal.

(Polyalkoxy)sulfonate surface modifiers

Methods and apparatuses for comminuting and stabilizing small particles are provided. In one embodiment, an apparatus moves an organic compound dissolved in a solvent to form a suspension of particles in a first fluid stream and moves the suspension in a second fluid stream, wherein the second fluid stream is oriented and positioned with respect to the first stream to cause shearing between the streams and mixing of at least some of the particles in the first and second streams.

Methods and apparatuses for the comminution and stabilization of small particles

The present invention provides a polymorphic form of itraconazole.

Polymorphic form of itraconazole

The present invention discloses a composition of a stable suspension of a poorly water soluble pharmaceutical agent or cosmetic in the form of particles of the pharmaceutical agent or cosmetic suspended in a frozen aqueous matrix and method for its preparation. The composition is stable for a prolonged period of time, preferably six months or longer and is suitable for parenteral, oral, or non-oral routes such as pulmonary (inhalation), ophthalmic, or topical administration.

Compositions of and method for preparing stable particles in a frozen aqueous matrix

A premix parenteral solution for intravenous administration having amiodarone, as an active ingredient, solubilized in a solution of water for injection and about 0.4-12 mg/ml of a non-ionic surfactant to a concentration range of from 0.2 to 6 mg/ml is disclosed. The solution optionally may include an osmotic agent. No dilution of the solution is required before administering to a patient and the sterile packaged solution has an initial pH within the range of from about 2.9 to about 3.2, preferably about 3.1. Additionally, a method for producing an amiodarone solution suitable for intravenous administration is further disclosed.

Premixed amiodarone parenteral solution and method for making the same

The present invention provides a method for preparing submicron sized particles of an organic compound, the solubility of which is greater in a water-miscible first solvent than in a second solvent which is aqueous, the process including the steps of: (i) dissolving the organic compound in the water-miscible first solvent to form a solution, (ii) mixing the solution with the second solvent to define a pre-suspension; and (iii) adding energy to the pre-suspension to form particles having an average effective particle size of 400 nm to 2 microns.

Microprecipitation method for preparing submicron suspensions

The present invention provides a method for preparing a suspension of a pharmaceutically-active compound, the solubility of which is greater in a water-miscible first organic solvent than in a second solvent which is aqueous. The process includes the steps of: (i) dissolving a first quantity of the pharmaceutically-active compound in the water-miscible first organic solvent to form a first solution; (ii) mixing the first solution with the second solvent to precipitate the pharmaceutically-active compound; and (iii) seeding the first solution or the second solvent or the pre-suspension.

Method for preparing submicron suspensions with polymorph control

The present invention provides a method for preparing submicron sized particles of an organic compound, the solubility of which is greater in a water-miscible first solvent than in a second solvent which is aqueous, the process including the steps of: (i) dissolving the organic compound in the water-miscible first solvent to form a solution, (ii) mixing the solution with the second solvent to define a pre-suspension; and (iii) adding energy to the pre-suspension to form particles having an average effective particle size of less than about 2 &#x3bc;m.

Growing community of inventors

Wauconda, IL, United States of America

James E Kipp