AT257698T - Hydrophilic microparticles and methods for their preparation - Google Patents

Hydrophilic microparticles and methods for their preparation

Info

Publication number
AT257698T
AT257698T AT97910783T AT97910783T AT257698T AT 257698 T AT257698 T AT 257698T AT 97910783 T AT97910783 T AT 97910783T AT 97910783 T AT97910783 T AT 97910783T AT 257698 T AT257698 T AT 257698T
Authority
AT
Austria
Prior art keywords
preparation
methods
hydrophilic microparticles
microparticles
hydrophilic
Prior art date
Application number
AT97910783T
Other languages
German (de)
Inventor
Dmitri Kirpotin
Daniel C F Chan
Paul Bunn
Original Assignee
Hermes Biosciences Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US2759496P priority Critical
Application filed by Hermes Biosciences Inc filed Critical Hermes Biosciences Inc
Priority to PCT/US1997/017872 priority patent/WO1998014180A1/en
Publication of AT257698T publication Critical patent/AT257698T/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/48Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/51Nanocapsules; Nanoparticles
    • A61K9/5107Excipients; Inactive ingredients
    • A61K9/513Organic macromolecular compounds; Dendrimers
    • A61K9/5161Polysaccharides, e.g. alginate, chitosan, cellulose derivatives; Cyclodextrin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/14Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • A61K9/16Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
    • A61K9/1605Excipients; Inactive ingredients
    • A61K9/1629Organic macromolecular compounds
    • A61K9/1652Polysaccharides, e.g. alginate, cellulose derivatives; Cyclodextrin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/48Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5005Wall or coating material
    • A61K9/5021Organic macromolecular compounds
    • A61K9/5036Polysaccharides, e.g. gums, alginate; Cyclodextrin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/48Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/51Nanocapsules; Nanoparticles
    • A61K9/5192Processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02Making microcapsules or microballoons
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y5/00Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/14Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • A61K9/19Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles lyophilised, i.e. freeze-dried, solutions or dispersions
AT97910783T 1996-10-03 1997-10-02 Hydrophilic microparticles and methods for their preparation AT257698T (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US2759496P true 1996-10-03 1996-10-03
PCT/US1997/017872 WO1998014180A1 (en) 1996-10-03 1997-10-02 Hydrophilic microparticles and methods to prepare same

Publications (1)

Publication Number Publication Date
AT257698T true AT257698T (en) 2004-01-15

Family

ID=21838625

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97910783T AT257698T (en) 1996-10-03 1997-10-02 Hydrophilic microparticles and methods for their preparation

Country Status (10)

Country Link
US (1) US6048550A (en)
EP (1) EP0951280B1 (en)
AT (1) AT257698T (en)
AU (1) AU4807197A (en)
CA (1) CA2267973C (en)
DE (2) DE69727244D1 (en)
DK (1) DK0951280T3 (en)
ES (1) ES2212083T3 (en)
PT (1) PT951280E (en)
WO (1) WO1998014180A1 (en)

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US20030096013A1 (en) * 2000-12-22 2003-05-22 Jane Werling Preparation of submicron sized particles with polymorph control
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US20040256749A1 (en) * 2000-12-22 2004-12-23 Mahesh Chaubal Process for production of essentially solvent-free small particles
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US6607784B2 (en) * 2000-12-22 2003-08-19 Baxter International Inc. Microprecipitation method for preparing submicron suspensions
US9700866B2 (en) 2000-12-22 2017-07-11 Baxter International Inc. Surfactant systems for delivery of organic compounds
US6951656B2 (en) * 2000-12-22 2005-10-04 Baxter International Inc. Microprecipitation method for preparing submicron suspensions
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US7981600B2 (en) * 2003-04-17 2011-07-19 3M Innovative Properties Company Methods and devices for removal of organic molecules from biological mixtures using an anion exchange material that includes a polyoxyalkylene
EP1625333A1 (en) 2003-05-21 2006-02-15 Alexza Pharmaceuticals, Inc. Self-contained heating unit and drug-supply unit employing same
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US7165839B2 (en) * 2003-12-19 2007-01-23 Novartis Ag Method for producing tinted contact lenses
US7939249B2 (en) * 2003-12-24 2011-05-10 3M Innovative Properties Company Methods for nucleic acid isolation and kits using a microfluidic device and concentration step
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EP2023813A4 (en) * 2006-05-15 2013-03-13 Dmitri B Kirpotin Magnetic microparticles comprising organic substances
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US8426467B2 (en) * 2007-05-22 2013-04-23 Baxter International Inc. Colored esmolol concentrate
US8722736B2 (en) * 2007-05-22 2014-05-13 Baxter International Inc. Multi-dose concentrate esmolol with benzyl alcohol
US20080293814A1 (en) * 2007-05-22 2008-11-27 Deepak Tiwari Concentrate esmolol
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US8323615B2 (en) * 2008-08-20 2012-12-04 Baxter International Inc. Methods of processing multi-phasic dispersions
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Also Published As

Publication number Publication date
DK0951280T3 (en) 2004-05-17
AU4807197A (en) 1998-04-24
US6048550A (en) 2000-04-11
CA2267973C (en) 2006-12-19
CA2267973A1 (en) 1998-04-09
PT951280E (en) 2004-05-31
DK951280T3 (en)
ES2212083T3 (en) 2004-07-16
DE69727244D1 (en) 2004-02-19
EP0951280A4 (en) 2001-08-29
WO1998014180A1 (en) 1998-04-09
DE69727244T2 (en) 2004-11-25
EP0951280A1 (en) 1999-10-27
EP0951280B1 (en) 2004-01-14

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