WO1997041837A3 - Microparticles - Google Patents

Microparticles Download PDF

Info

Publication number
WO1997041837A3
WO1997041837A3 PCT/EP1997/002431 EP9702431W WO9741837A3 WO 1997041837 A3 WO1997041837 A3 WO 1997041837A3 EP 9702431 W EP9702431 W EP 9702431W WO 9741837 A3 WO9741837 A3 WO 9741837A3
Authority
WO
WIPO (PCT)
Prior art keywords
particles
microparticles
organic solvent
solvent system
solvent
Prior art date
Application number
PCT/EP1997/002431
Other languages
French (fr)
Other versions
WO1997041837A2 (en
Inventor
Michael E Rickey
J Michael Ramstack
Danny H Lewis
Jean Louis Mesens
Original Assignee
Alkermes Inc
Janssen Pharmaceutica Nv
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21917114&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1997041837(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to EE9800383A priority Critical patent/EE04540B1/en
Priority to AU28972/97A priority patent/AU733199B2/en
Priority to SI9730417T priority patent/SI0904063T1/en
Priority to PL97329720A priority patent/PL188550B1/en
Priority to HU9902797A priority patent/HU223532B1/en
Priority to JP52963197A priority patent/JP3822909B2/en
Priority to EP97923063A priority patent/EP0904063B1/en
Priority to IL12650997A priority patent/IL126509A/en
Priority to CA002251987A priority patent/CA2251987C/en
Priority to NZ333196A priority patent/NZ333196A/en
Priority to DE69715191T priority patent/DE69715191T2/en
Application filed by Alkermes Inc, Janssen Pharmaceutica Nv filed Critical Alkermes Inc
Priority to DK02075905T priority patent/DK1210942T3/en
Priority to BR9709217A priority patent/BR9709217A/en
Priority to AT97923063T priority patent/ATE223206T1/en
Priority to DK97923063T priority patent/DK0904063T3/en
Priority to SK1541-98A priority patent/SK283852B6/en
Priority to SI9730762T priority patent/SI1210942T1/en
Priority to UA98115888A priority patent/UA59361C2/en
Publication of WO1997041837A2 publication Critical patent/WO1997041837A2/en
Publication of WO1997041837A3 publication Critical patent/WO1997041837A3/en
Priority to NO19984808A priority patent/NO323591B1/en
Priority to BG102854A priority patent/BG64036B1/en
Priority to HK99101960A priority patent/HK1016884A1/en
Priority to NO20065995A priority patent/NO20065995L/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02—Making microcapsules or microballoons
    • B01J13/04—Making microcapsules or microballoons by physical processes, e.g. drying, spraying
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
    • A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
    • A61K31/519—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
    • A61K9/1605—Excipients; Inactive ingredients
    • A61K9/1629—Organic macromolecular compounds
    • A61K9/1641—Organic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, poloxamers
    • A61K9/1647—Polyesters, e.g. poly(lactide-co-glycolide)
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
    • A61K9/1682—Processes
    • A61K9/1694—Processes resulting in granules or microspheres of the matrix type containing more than 5% of excipient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50—Microcapsules 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
    • A61K9/5089—Processes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00—Drugs for disorders of the nervous system
    • A61P25/24—Antidepressants
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2984—Microcapsule with fluid core [includes liposome]
    • Y10T428/2985—Solid-walled microcapsule from synthetic polymer

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Neurology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Chemical & Material Sciences (AREA)
  • Neurosurgery (AREA)
  • Biomedical Technology (AREA)
  • Psychiatry (AREA)
  • Pain & Pain Management (AREA)
  • Medicinal Preparation (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Biological Depolymerization Polymers (AREA)

Abstract

The invention provides a process for the preparation of biodegradable biocompatible microparticles, said process comprising: contacting microparticles comprising a biodegradable biocompatible polymer matrix containing an active (e.g. pharmaceutical or diagnostic) agent and an organic solvent with an aqueous solvent system whereby the content of said organic solvent in said particles is reduced to 2 % or less of the weight of said particles, said solvent system being such as to satisfy at least one of the conditions (a) that it is at an elevated temperature (e.g. from 25 to 40 °C) during at least part of the time that it is in contact with said particles, and (b) that it comprises water and water-miscible solvent for said organic solvent; and recovering said particles from said aqueous solvent system.
PCT/EP1997/002431 1996-05-07 1997-05-06 Microparticles WO1997041837A2 (en)

Priority Applications (22)

Application Number Priority Date Filing Date Title
SI9730762T SI1210942T1 (en) 1996-05-07 1997-05-06 Microparticles
BR9709217A BR9709217A (en) 1996-05-07 1997-05-06 Preparation of biodegradable biocompatible microparticles with extended shelf life containing a biologically active agent
DK02075905T DK1210942T3 (en) 1996-05-07 1997-05-06 Microparticles
PL97329720A PL188550B1 (en) 1996-05-07 1997-05-06 Microparticles
AU28972/97A AU733199B2 (en) 1996-05-07 1997-05-06 Microparticles
JP52963197A JP3822909B2 (en) 1996-05-07 1997-05-06 Process for making biodegradable biocompatible particulates
EP97923063A EP0904063B1 (en) 1996-05-07 1997-05-06 Process for the preparation of microparticles
AT97923063T ATE223206T1 (en) 1996-05-07 1997-05-06 METHOD FOR PRODUCING MICROPARTICLES
CA002251987A CA2251987C (en) 1996-05-07 1997-05-06 Microparticles
NZ333196A NZ333196A (en) 1996-05-07 1997-05-06 Process for preparing microparticles from risperidone and a solvent and use
DE69715191T DE69715191T2 (en) 1996-05-07 1997-05-06 Process for the production of microparticles
EE9800383A EE04540B1 (en) 1996-05-07 1997-05-06 Method for the preparation of biologically compatible biodegradable microparticles and the use of microparticles
SI9730417T SI0904063T1 (en) 1996-05-07 1997-05-06 Process for the preparation of microparticles
HU9902797A HU223532B1 (en) 1996-05-07 1997-05-06 Microparticles
IL12650997A IL126509A (en) 1996-05-07 1997-05-06 Preparation of microparticles, compositions comprising them and uses thereof
DK97923063T DK0904063T3 (en) 1996-05-07 1997-05-06 Process for the preparation of microparticles
SK1541-98A SK283852B6 (en) 1996-05-07 1997-05-06 Process for the preparation of biodegradable biocompatible microparticles
UA98115888A UA59361C2 (en) 1996-05-07 1997-06-05 Process for preparation of biodegradable biocompatible microparticles, material contacting microparticles and pharmaceutical composition
NO19984808A NO323591B1 (en) 1996-05-07 1998-10-15 Process for the preparation and use of microparticles
BG102854A BG64036B1 (en) 1996-05-07 1998-10-15 Method for the preparation of microparticles
HK99101960A HK1016884A1 (en) 1996-05-07 1999-04-30 Process for the preparation of microparticles
NO20065995A NO20065995L (en) 1996-05-07 2006-12-22 Microparticles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US4155196P 1996-05-07 1996-05-07
US60/041,551 1996-05-07

Publications (2)

Publication Number Publication Date
WO1997041837A2 WO1997041837A2 (en) 1997-11-13
WO1997041837A3 true WO1997041837A3 (en) 1998-02-26

Family

ID=21917114

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/002431 WO1997041837A2 (en) 1996-05-07 1997-05-06 Microparticles

Country Status (23)

Country Link
US (9) US5792477A (en)
EP (1) EP0904063B1 (en)
JP (2) JP3822909B2 (en)
KR (1) KR100432677B1 (en)
CN (1) CN1224380C (en)
AR (2) AR012820A1 (en)
AU (1) AU733199B2 (en)
BG (1) BG64036B1 (en)
BR (1) BR9709217A (en)
CA (1) CA2251987C (en)
CZ (1) CZ293578B6 (en)
EE (1) EE04540B1 (en)
HU (1) HU223532B1 (en)
ID (1) ID17505A (en)
IL (1) IL126509A (en)
NO (2) NO323591B1 (en)
NZ (1) NZ333196A (en)
PL (1) PL188550B1 (en)
RU (1) RU2201214C2 (en)
SK (1) SK283852B6 (en)
UA (1) UA59361C2 (en)
WO (1) WO1997041837A2 (en)
ZA (1) ZA973891B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8877252B2 (en) 2004-04-15 2014-11-04 Alkermes Pharma Ireland Limited Polymer-based sustained release device
US9393192B2 (en) 2002-07-29 2016-07-19 Alza Corporation Methods and dosage forms for controlled delivery of paliperidone and risperidone

Families Citing this family (161)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2236700T3 (en) * 1993-11-19 2005-07-16 Janssen Pharmaceutica N.V. 1,2-MICROENCAPSULATED BENZAZOLS.
DE19545257A1 (en) 1995-11-24 1997-06-19 Schering Ag Process for the production of morphologically uniform microcapsules and microcapsules produced by this process
US5792477A (en) * 1996-05-07 1998-08-11 Alkermes Controlled Therapeutics, Inc. Ii Preparation of extended shelf-life biodegradable, biocompatible microparticles containing a biologically active agent
TW487572B (en) * 1996-05-20 2002-05-21 Janssen Pharmaceutica Nv Aqueous suspensions of 9-hydroxyrisperidone fatty acid esters
US7923250B2 (en) 1997-07-30 2011-04-12 Warsaw Orthopedic, Inc. Methods of expressing LIM mineralization protein in non-osseous cells
EP1007673B1 (en) 1997-07-30 2008-12-17 Emory University Novel bone mineralization proteins, dna, vectors, expression systems
UA72189C2 (en) 1997-11-17 2005-02-15 Янссен Фармацевтика Н.В. Aqueous suspensions of 9-hydroxy-risperidone fatty acid esters provided in submicron form
US6194006B1 (en) * 1998-12-30 2001-02-27 Alkermes Controlled Therapeutics Inc. Ii Preparation of microparticles having a selected release profile
IL145661A0 (en) * 1999-03-31 2002-06-30 Janssen Pharmaceutica Nv Pregelatinized starch in a controlled release formulation
EP1044683A1 (en) * 1999-04-15 2000-10-18 Debio Recherche Pharmaceutique S.A. One-step dispersion method for the microencapsulation of water soluble substances
US6291013B1 (en) * 1999-05-03 2001-09-18 Southern Biosystems, Inc. Emulsion-based processes for making microparticles
US7030097B1 (en) 1999-07-14 2006-04-18 Cornell Research Foundation, Inc. Controlled nucleic acid delivery systems
FR2797784B1 (en) * 1999-08-27 2001-11-30 Mainelab PROCESS FOR THE ENCAPSULATION OF ACTIVE MATERIALS BY COACERVATION OF POLYMERS IN NON-CHLORINE ORGANIC SOLVENT
ES2162746B1 (en) * 1999-10-21 2003-02-16 Lipotec Sa MICROCAPSULES FOR THE STABILIZATION OF COSMETIC, PHARMACEUTICAL OR FOOD PRODUCTS.
US6331317B1 (en) 1999-11-12 2001-12-18 Alkermes Controlled Therapeutics Ii Inc. Apparatus and method for preparing microparticles
US6495166B1 (en) 1999-11-12 2002-12-17 Alkermes Controlled Therapeutics Inc. Apparatus and method for preparing microparticles using in-line solvent extraction
US6705757B2 (en) * 1999-11-12 2004-03-16 Alkermes Controlled Therapeutics, Inc. Ii Method and apparatus for preparing microparticles using in-line solvent extraction
GB2356386A (en) * 1999-11-17 2001-05-23 Tagra Biotechnologies Ltd Microencapsulation
US7838037B2 (en) * 1999-11-17 2010-11-23 Tagra Biotechnologies Ltd. Method of microencapsulation
AU4743601A (en) 2000-03-15 2001-09-24 Wolfgang Sadee Neutral antagonists and use thereof in treating drug abuse
GB0008411D0 (en) * 2000-04-05 2000-05-24 Vectura Ltd Pharmaceutical preparations and their manufacture
JP4361710B2 (en) 2000-04-19 2009-11-11 ジェネンテック・インコーポレーテッド Sustained release formulation
US6264987B1 (en) * 2000-05-19 2001-07-24 Alkermes Controlled Therapeutics Inc. Ii Method for preparing microparticles having a selected polymer molecular weight
US6495164B1 (en) 2000-05-25 2002-12-17 Alkermes Controlled Therapeutics, Inc. I Preparation of injectable suspensions having improved injectability
US6362308B1 (en) 2000-08-10 2002-03-26 Alkermes Controlled Therapeutics Inc. Ii Acid end group poly(d,l-lactide-co-glycolide) copolymers high glycolide content
WO2002013786A2 (en) * 2000-08-15 2002-02-21 Board Of Trustees Of The University Of Illinois Method of forming microparticles
US6824822B2 (en) 2001-08-31 2004-11-30 Alkermes Controlled Therapeutics Inc. Ii Residual solvent extraction method and microparticles produced thereby
US6471995B1 (en) 2000-09-27 2002-10-29 Alkermes Controlled Therapeutics, Inc. Ii Apparatus and method for preparing microparticles using liquid-liquid extraction
SE517421C2 (en) 2000-10-06 2002-06-04 Bioglan Ab New production of microparticles involves use of aqueous solution of purified amylopectin-based starch of reduced molecular weight
AU2001294458B2 (en) * 2000-10-06 2004-03-11 Jagotec Ag Biodegradable microparticles for controlled release administration, with purified amylopectin-based starch of reduced molecular weight
US7666445B2 (en) * 2000-10-20 2010-02-23 The Trustees Of The University Of Pennsylvania Polymer-based surgically implantable haloperidol delivery systems and methods for their production and use
CN1507357A (en) * 2000-10-31 2004-06-23 PRҩƷ���޹�˾ Method and compositions for enhanced delivery of bioactive molecules
EP1343480B2 (en) 2000-12-21 2016-02-17 Alrise Biosystems GmbH Induced phase transition method for the production of microparticles containing hydrophobic active agents
US8067032B2 (en) 2000-12-22 2011-11-29 Baxter International Inc. Method for preparing submicron particles of antineoplastic agents
US9700866B2 (en) 2000-12-22 2017-07-11 Baxter International Inc. Surfactant systems for delivery of organic compounds
US20020114843A1 (en) * 2000-12-27 2002-08-22 Ramstack J. Michael Preparation of microparticles having improved flowability
WO2002058671A1 (en) * 2001-01-26 2002-08-01 Debio Recherche Pharmaceutique S.A. Burst free pharmaceutical microparticules
US7824700B2 (en) * 2001-02-23 2010-11-02 Genentech, Inc. Erodible polymers for injection
US6949251B2 (en) * 2001-03-02 2005-09-27 Stryker Corporation Porous β-tricalcium phosphate granules for regeneration of bone tissue
AU2002320122B2 (en) * 2001-06-21 2007-07-26 Genentech, Inc. Sustained release formulation
US6730772B2 (en) 2001-06-22 2004-05-04 Venkatram P. Shastri Degradable polymers from derivatized ring-opened epoxides
US7968119B2 (en) * 2001-06-26 2011-06-28 Farrell John J Tamper-proof narcotic delivery system
CA2461349C (en) 2001-09-26 2011-11-29 Baxter International Inc. Preparation of submicron sized nanoparticles via dispersion and solvent or liquid phase removal
US20060003012A9 (en) 2001-09-26 2006-01-05 Sean Brynjelsen Preparation of submicron solid particle suspensions by sonication of multiphase systems
AU2002346960A1 (en) 2001-10-06 2003-04-22 Merial Limited Methods and compositions for promoting growth and innate immunity in young animals
SE0201599D0 (en) * 2002-03-21 2002-05-30 Skyepharma Ab microparticles
US7160551B2 (en) * 2002-07-09 2007-01-09 The Board Of Trustees Of The University Of Illinois Injectable system for controlled drug delivery
MXPA05001242A (en) * 2002-07-31 2005-06-08 Alza Corp Injectable depot compositions and uses thereof.
US6800663B2 (en) * 2002-10-18 2004-10-05 Alkermes Controlled Therapeutics Inc. Ii, Crosslinked hydrogel copolymers
WO2004064752A2 (en) * 2003-01-22 2004-08-05 Alkermes Controlled Therapeutics, Inc. Method of preparing sustained release microparticles
US7736391B2 (en) 2003-02-06 2010-06-15 Tonaba Healthscience Ii, Llc Cosmetic and reconstructive prostheses with a microencapsulated biologically compatible rupture indicator for sustained release and methods of detecting compromise of a prosthesis
US6908484B2 (en) * 2003-03-06 2005-06-21 Spinecore, Inc. Cervical disc replacement
ES2427092T3 (en) 2003-04-10 2013-10-28 Evonik Corporation A method for the production of emulsion-based microparticles
US20060286138A1 (en) * 2003-04-10 2006-12-21 Malshe Vinod C Novel biodegradable aliphatic polyesters and pharmaceutical compositions and applications thereof
US20070207211A1 (en) * 2003-04-10 2007-09-06 Pr Pharmaceuticals, Inc. Emulsion-based microparticles and methods for the production thereof
WO2004108115A1 (en) * 2003-06-03 2004-12-16 Santen Pharmaceutical Co., Ltd. Process for producing microparticle
US7279579B2 (en) * 2003-06-04 2007-10-09 Alkermes, Inc. Polymorphic forms of naltrexone
ES2600554T3 (en) 2003-07-18 2017-02-09 Oakwood Laboratories L.L.C. Prevention of polymer molecular weight reduction, impurity formation and gelation in polymeric compositions
BRPI0412211A (en) 2003-07-23 2006-08-22 Pr Pharmaceuticals Inc controlled release compositions
US6987111B2 (en) * 2003-08-06 2006-01-17 Alkermes Controlled Therapeutics, Ii Aripiprazole, olanzapine and haloperidol pamoate salts
WO2005015160A2 (en) * 2003-08-07 2005-02-17 The Children's Hospital Of Philadelphia Functionalized polymeric colloids
US7309500B2 (en) * 2003-12-04 2007-12-18 The Board Of Trustees Of The University Of Illinois Microparticles
US8329203B2 (en) * 2004-01-12 2012-12-11 The Trustees Of The University Of Pennsylvania Drug-containing implants and methods of use thereof
JP5306599B2 (en) * 2004-01-12 2013-10-02 ザ トラスティーズ オブ ザ ユニバーシティ オブ ペンシルバニア Long-term delivery formulation
US8221778B2 (en) 2005-01-12 2012-07-17 The Trustees Of The University Of Pennsylvania Drug-containing implants and methods of use thereof
CA2552758A1 (en) * 2004-01-13 2005-08-04 Vasogenix Pharmaceuticals, Inc. Methods for treating acute myocardial infarction by administering calcitonin gene related peptide and compositions containing the same
EP1703895A2 (en) * 2004-01-13 2006-09-27 Vasogenix Pharmaceuticals, Inc. Controlled release cgrp delivery composition for cardiovascular and renal indications
JP2007517911A (en) * 2004-01-13 2007-07-05 バソジェニックス ファーマシューティカルズ， インコーポレイテッド Methods of using CGRP for cardiovascular and renal indications
US20050245461A1 (en) * 2004-03-19 2005-11-03 Elliot Ehrich Methods for treating alcoholism
US20050245541A1 (en) * 2004-03-19 2005-11-03 Elliot Ehrich Methods for treating alcoholism
US7456254B2 (en) 2004-04-15 2008-11-25 Alkermes, Inc. Polymer-based sustained release device
US7919499B2 (en) 2004-04-22 2011-04-05 Alkermes, Inc. Naltrexone long acting formulations and methods of use
US20050260272A1 (en) * 2004-05-05 2005-11-24 Alkermes Controlled Therapeutics, Inc. Method of forming microparticles that include a bisphosphonate and a polymer
US7748343B2 (en) 2004-11-22 2010-07-06 The Board Of Trustees Of The University Of Illinois Electrohydrodynamic spraying system
EP1679065A1 (en) * 2005-01-07 2006-07-12 OctoPlus Sciences B.V. Controlled release compositions for interferon based on PEGT/PBT block copolymers
EP1838305A1 (en) * 2005-01-21 2007-10-03 Richard H. Matthews Radiosensitizer formulations comprising nitrohistidine derivatives
WO2006078841A1 (en) * 2005-01-21 2006-07-27 President And Fellows Of Harvard College Systems and methods for forming fluidic droplets encapsulated in particles such as colloidal particles
US8598092B2 (en) 2005-02-02 2013-12-03 Halliburton Energy Services, Inc. Methods of preparing degradable materials and methods of use in subterranean formations
US11246913B2 (en) 2005-02-03 2022-02-15 Intarcia Therapeutics, Inc. Suspension formulation comprising an insulinotropic peptide
MX2008000573A (en) * 2005-07-18 2008-03-14 Univ Pennsylvania Drug-containing implants and methods of use thereof.
US8852638B2 (en) 2005-09-30 2014-10-07 Durect Corporation Sustained release small molecule drug formulation
US7669732B2 (en) * 2005-10-25 2010-03-02 Imi Cornelius Inc. Cup lid dispenser
ES2643140T3 (en) * 2005-12-22 2017-11-21 Oakwood Laboratories L.L.C. Sublimable slow release delivery system and procedure for carrying it out
US8747870B2 (en) 2006-04-20 2014-06-10 University Of Utah Research Foundation Polymeric compositions and methods of making and using thereof
AU2007240613B2 (en) * 2006-04-20 2013-11-28 University Of Utah Research Foundation Polymeric compositions and methods of making and using thereof
KR100781604B1 (en) * 2006-06-13 2007-12-03 한불화장품주식회사 Method of stabilization of active ingredients that have low solubility, using hollow type multi-layered microcapsule made of hydrophobic polymer/polyhydric alcohols and preparation method thereof, and cosmetic composition containing the microcapsules
KR101200728B1 (en) 2006-08-09 2012-11-13 인타르시아 세라퓨틱스 인코포레이티드 Osmotic delivery system and piston assemblies
CN101511347B (en) * 2006-08-31 2012-11-28 Sk化学株式会社 Method for producing microspheres loaded with drugs and microspheres loaded with drugs produced thereby
WO2008070118A1 (en) * 2006-12-05 2008-06-12 Landec Corporation Drug delivery
US20090263346A1 (en) * 2006-12-05 2009-10-22 David Taft Systems and methods for delivery of drugs
CN101636480B (en) 2007-01-11 2014-04-09 诺维信公司 Particles comprising active compounds
WO2008118712A1 (en) * 2007-03-22 2008-10-02 Alkermes, Inc. Coacervation process
AU2008244523B2 (en) 2007-04-23 2012-02-16 Intarcia Therapeutics, Inc. Suspension formulations of insulinotropic peptides and uses thereof
MX337286B (en) 2007-05-25 2016-02-22 Indivior Uk Ltd Sustained delivery formulations of risperidone compounds.
US20080317865A1 (en) * 2007-06-20 2008-12-25 Alkermes, Inc. Quench liquids and washing systems for production of microparticles
US8748448B2 (en) 2007-10-18 2014-06-10 Aiko Biotechnology Combination analgesic employing opioid agonist and neutral antagonist
JP2011500686A (en) 2007-10-18 2011-01-06 アイコ バイオテクノロジー Combined analgesics using opioids and neutral antagonists
ES2718612T3 (en) 2007-12-20 2019-07-03 Evonik Corp Procedure for preparing microparticles that have a low volume of residual solvent
WO2009109993A1 (en) * 2008-02-04 2009-09-11 Torrent Pharmaceuticals Ltd. Extended release dosage form of paliperidone
JP5718058B2 (en) * 2008-02-08 2015-05-13 キューピーエス リミテッド ライアビリティ カンパニー Composition for slow broadcast of protein or peptide
EP2240155B1 (en) 2008-02-13 2012-06-06 Intarcia Therapeutics, Inc Devices, formulations, and methods for delivery of multiple beneficial agents
WO2010005726A2 (en) 2008-06-16 2010-01-14 Bind Biosciences Inc. Therapeutic polymeric nanoparticles with mtor inhibitors and methods of making and using same
JP2012501966A (en) * 2008-06-16 2012-01-26 バインド バイオサイエンシズ インコーポレイテッド Vinca alkaloid-containing therapeutic polymer nanoparticles and methods for making and using the same
AU2009268923B2 (en) * 2008-06-16 2015-09-17 Pfizer Inc. Drug loaded polymeric nanoparticles and methods of making and using same
WO2010030763A2 (en) * 2008-09-10 2010-03-18 Bind Biosciences, Inc. High throughput fabrication of nanoparticles
US8703843B2 (en) * 2008-09-11 2014-04-22 Evonik Corporation Solvent extraction microencapsulation with tunable extraction rates
WO2010033776A1 (en) * 2008-09-18 2010-03-25 Surmodics Pharmaceuticals, Inc. Microencapsulation process with solvent and salt
CN102209531B (en) * 2008-11-14 2014-08-27 梨花女子大学校产学协力团 Method for preparing microspheres and microspheres produced thereby
US20100143479A1 (en) * 2008-12-04 2010-06-10 Oakwood Laboratories, Llc Method of making sustained release microparticles
WO2010068866A2 (en) 2008-12-12 2010-06-17 Bind Biosciences Therapeutic particles suitable for parenteral administration and methods of making and using same
JP2012512175A (en) 2008-12-15 2012-05-31 バインド バイオサイエンシズ インコーポレイテッド Long-circulating nanoparticles for sustained release of therapeutic agents
ES2319158B1 (en) * 2008-12-23 2010-01-26 Grifols, S.A COMPOSITION OF BIOCOMPATIBLE ALGINIC ACID MICROPARTICLES FOR THE CONTROLLED RELEASE OF ACTIVE PRINCIPLES BY INTRAVENOUS VIA.
CA2749993C (en) * 2009-01-23 2016-12-20 Surmodics Pharmaceuticals, Inc. Continuous double emulsion process for making microparticles
US20100196436A1 (en) * 2009-01-30 2010-08-05 Gooberman Lance L Implants containing disulfiram and an anti-inflammatory agent
US8791093B2 (en) * 2009-05-29 2014-07-29 Lance L. Gooberman Pharmaceutical delivery systems for treatment of substance abuse and other addictions
SI2462246T1 (en) 2009-09-28 2018-01-31 Intarcia Therapeutics, Inc. Rapid establishment and/or termination of substantial steady-state drug delivery
US8641900B2 (en) * 2009-11-05 2014-02-04 Taiwan Biotech Co., Ltd Method and device for continuously preparing microspheres, and collection unit thereof
ES2721898T3 (en) 2009-12-11 2019-08-06 Pfizer Stable formulations to lyophilize therapeutic particles
WO2011084513A2 (en) 2009-12-15 2011-07-14 Bind Biosciences, Inc. Therapeutic polymeric nanoparticle compositions with high glass transition temperature or high molecular weight copolymers
WO2011119262A1 (en) 2010-03-26 2011-09-29 Cerulean Pharma Inc. Methods and systems for generating nanoparticles
CA3048850A1 (en) 2010-05-11 2011-11-17 Howmedica Osteonics Corp. Organophosphorous, multivalent metal compounds, & polymer adhesive interpenetrating network compositions & methods
GB2481017B (en) 2010-06-08 2015-01-07 Rb Pharmaceuticals Ltd Microparticle buprenorphine suspension
US9272044B2 (en) 2010-06-08 2016-03-01 Indivior Uk Limited Injectable flowable composition buprenorphine
KR20120011344A (en) * 2010-07-21 2012-02-08 에스케이케미칼주식회사 Method for preparing microspheres and microspheres produced thereby
US20120083444A1 (en) * 2010-09-30 2012-04-05 Brenda Perkins Emulsion Method For Preparing Low Residual Solvent Microparticles
US20120082731A1 (en) * 2010-09-30 2012-04-05 Adrian Raiche Method For Removing Residual Organic Solvent From Microparticles
SG191414A1 (en) * 2010-12-29 2013-08-30 Medincell Biodegradable drug delivery compositions
US8546521B2 (en) 2011-01-28 2013-10-01 Cerulean Pharma Inc. Method for fabricating nanoparticles
US20120208755A1 (en) 2011-02-16 2012-08-16 Intarcia Therapeutics, Inc. Compositions, Devices and Methods of Use Thereof for the Treatment of Cancers
US8765189B2 (en) 2011-05-13 2014-07-01 Howmedica Osteonic Corp. Organophosphorous and multivalent metal compound compositions and methods
KR101481859B1 (en) * 2011-05-20 2015-01-14 에스케이케미칼주식회사 Method for preparing microparticles with reduced initial drug release and microparticles prepare thereby
KR101265955B1 (en) 2011-09-07 2013-05-22 한불화장품주식회사 Cosmetic composition using microcapsules containing fermented herb medicine extracts
CN104812381B (en) 2012-09-17 2018-01-26 辉瑞大药厂 Method for preparing therapeutic nano particle
CN103834054B (en) * 2012-11-27 2018-05-11 东丽先端材料研究开发（中国）有限公司 The preparation method of polylactic acid hollow microsphere
SI3010962T2 (en) 2013-06-20 2023-04-28 Pharmathen S.A. Preparation of polylactide-polyglycolide microparticles having a sigmoidal release profile
AU2014283692B2 (en) * 2013-06-20 2017-04-27 Pharmathen S.A. Preparation of polylactide-polyglycolide microparticles having a sigmoidal release profile
BR112016002342A8 (en) 2013-08-06 2018-01-23 Dong Kook Pharm Co Ltd entecavir microsphere, method for preparation of an entecavir microsphere, and pharmaceutical composition
EP3076951B1 (en) * 2013-12-05 2020-09-30 Celal Albayrak Process for the production of drug formulations for oral administration
GB201404139D0 (en) 2014-03-10 2014-04-23 Rb Pharmaceuticals Ltd Sustained release buprenorphine solution formulations
SG11201607645TA (en) 2014-03-14 2016-10-28 Pfizer Therapeutic nanoparticles comprising a therapeutic agent and methods of making and using same
US9439864B2 (en) * 2014-07-07 2016-09-13 Antriabio, Inc. Solvent extraction from biodegradable microparticles
KR101738127B1 (en) 2014-08-08 2017-05-22 (주)비씨월드제약 A method for producing drug-containing sustained release micro particle
US9889085B1 (en) 2014-09-30 2018-02-13 Intarcia Therapeutics, Inc. Therapeutic methods for the treatment of diabetes and related conditions for patients with high baseline HbA1c
DK3215223T3 (en) 2014-11-07 2020-08-03 Indivior Uk Ltd BUPRENORPHIN DOSAGE SCHEMES
KR20240042548A (en) 2015-06-03 2024-04-02 인타르시아 세라퓨틱스 인코포레이티드 Implant placement and removal systems
EP3307245A1 (en) 2015-06-11 2018-04-18 Alrise Biosystems GmbH Process for the preparation of drug loaded microparticles
EP3377041B1 (en) 2015-11-16 2023-10-25 MedinCell S.A. A method for morselizing and/or targeting pharmaceutically active principles to synovial tissue
MA53353A (en) 2016-05-16 2021-06-09 Intarcia Therapeutics Inc GLUCAGON RECEPTOR SELECTIVE POLYPEPTIDES AND METHODS FOR THEIR USE
USD840030S1 (en) 2016-06-02 2019-02-05 Intarcia Therapeutics, Inc. Implant placement guide
USD860451S1 (en) 2016-06-02 2019-09-17 Intarcia Therapeutics, Inc. Implant removal tool
EP3565580B1 (en) 2017-01-03 2024-03-06 i2o Therapeutics, Inc. Continuous administration of exenatide and co-adminstration of acetaminophen, ethinylestradiol or levonorgestrel
WO2018178973A1 (en) 2017-03-26 2018-10-04 Mapi Pharma Ltd. Glatiramer depot systems for treating progressive forms of multiple sclerosis
US10646484B2 (en) 2017-06-16 2020-05-12 Indivior Uk Limited Methods to treat opioid use disorder
CN109718209B (en) * 2017-10-30 2021-03-05 浙江圣兆药物科技股份有限公司 Freeze-drying method of risperidone microspheres with low ethanol residues
CN109718212A (en) * 2017-10-30 2019-05-07 浙江圣兆药物科技股份有限公司 A method of reducing low solvent flashing benzyl alcohol in Risperidone microballoon
KR101862197B1 (en) * 2018-02-02 2018-05-29 이상운 Guide panel fixing apparatus having rain-water ponding preventing structure
CN111714442B (en) * 2019-03-04 2024-04-12 广州铂思雅生物医药科技有限公司 Preparation of the implant
GR1009870B (en) * 2019-07-09 2020-11-12 Φαρματεν Α.Β.Ε.Ε. Pharaceutical composition comprising an atypical antipsychotic drug and method for the preparation thereof
CN110407652B (en) * 2019-08-19 2021-02-02 安徽雷鸣科化有限责任公司 Mixed loading equipment for water gel explosive and control method thereof
CN113116830A (en) * 2019-12-31 2021-07-16 广州铂思雅生物医药科技有限公司 Preparation of sustained-release granules
WO2021199077A1 (en) 2020-03-30 2021-10-07 Biological E Limited Risperidone microspheres, process for their prepartion and uses thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4389330A (en) * 1980-10-06 1983-06-21 Stolle Research And Development Corporation Microencapsulation process
WO1995013814A1 (en) * 1993-11-19 1995-05-26 Janssen Pharmaceutica N.V. Microencapsulated 3-piperidinyl-substituted 1,2-benzisoxazoles and 1,2-benzisothiazoles
WO1995013799A1 (en) * 1993-11-19 1995-05-26 Alkermes Controlled Therapeutics Inc. Ii Preparation of biodegradable microparticles containing a biologically active agent
EP0669128A1 (en) * 1992-11-17 1995-08-30 Yoshitomi Pharmaceutical Industries, Ltd. Sustained-release microsphere containing antipsychotic and process for producing the same
US5478564A (en) * 1990-02-22 1995-12-26 Teva Pharmaceutical Industries, Ltd. Preparation of microparticles for controlled release of water-soluble substances
US5541172A (en) * 1991-06-28 1996-07-30 Endorecherche, Inc. Controlled release systems and low dose androgens

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE634668A (en) * 1962-07-11
BE744162A (en) * 1969-01-16 1970-06-15 Fuji Photo Film Co Ltd ENCAPSULATION PROCESS
US3773919A (en) * 1969-10-23 1973-11-20 Du Pont Polylactide-drug mixtures
DE2010115A1 (en) * 1970-03-04 1971-09-16 Farbenfabriken Bayer Ag, 5090 Leverkusen Process for the production of micro-granules
JPS523342B2 (en) * 1972-01-26 1977-01-27
GB1413186A (en) * 1973-06-27 1975-11-12 Toyo Jozo Kk Process for encapsulation of medicaments
JPS523653A (en) * 1975-06-27 1977-01-12 Fuji Photo Film Co Ltd Process for producing fine polymer particles
US4384975A (en) * 1980-06-13 1983-05-24 Sandoz, Inc. Process for preparation of microspheres
US4530840A (en) * 1982-07-29 1985-07-23 The Stolle Research And Development Corporation Injectable, long-acting microparticle formulation for the delivery of anti-inflammatory agents
IE58110B1 (en) * 1984-10-30 1993-07-14 Elan Corp Plc Controlled release powder and process for its preparation
JPH0725689B2 (en) * 1986-10-07 1995-03-22 中外製薬株式会社 Sustained-release preparation containing granulocyte colony-stimulating factor
WO1989003678A1 (en) * 1987-10-30 1989-05-05 Stolle Research & Development Corporation Low residual solvent microspheres and microencapsulation process
DE8812411U1 (en) 1988-09-29 1990-02-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
IL92344A0 (en) * 1989-01-04 1990-07-26 Gist Brocades Nv Microencapsulation of bioactive substances in biocompatible polymers,microcapsules obtained and pharmaceutical preparation comprising said microcapsules
EP0471036B2 (en) * 1989-05-04 2004-06-23 Southern Research Institute Encapsulation process
IT1243390B (en) * 1990-11-22 1994-06-10 Vectorpharma Int PHARMACEUTICAL COMPOSITIONS IN THE FORM OF PARTICLES SUITABLE FOR THE CONTROLLED RELEASE OF PHARMACOLOGICALLY ACTIVE SUBSTANCES AND PROCEDURE FOR THEIR PREPARATION.
US5650173A (en) * 1993-11-19 1997-07-22 Alkermes Controlled Therapeutics Inc. Ii Preparation of biodegradable microparticles containing a biologically active agent
US5792477A (en) * 1996-05-07 1998-08-11 Alkermes Controlled Therapeutics, Inc. Ii Preparation of extended shelf-life biodegradable, biocompatible microparticles containing a biologically active agent
US5945126A (en) 1997-02-13 1999-08-31 Oakwood Laboratories L.L.C. Continuous microsphere process

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4389330A (en) * 1980-10-06 1983-06-21 Stolle Research And Development Corporation Microencapsulation process
US5478564A (en) * 1990-02-22 1995-12-26 Teva Pharmaceutical Industries, Ltd. Preparation of microparticles for controlled release of water-soluble substances
US5541172A (en) * 1991-06-28 1996-07-30 Endorecherche, Inc. Controlled release systems and low dose androgens
EP0669128A1 (en) * 1992-11-17 1995-08-30 Yoshitomi Pharmaceutical Industries, Ltd. Sustained-release microsphere containing antipsychotic and process for producing the same
WO1995013814A1 (en) * 1993-11-19 1995-05-26 Janssen Pharmaceutica N.V. Microencapsulated 3-piperidinyl-substituted 1,2-benzisoxazoles and 1,2-benzisothiazoles
WO1995013799A1 (en) * 1993-11-19 1995-05-26 Alkermes Controlled Therapeutics Inc. Ii Preparation of biodegradable microparticles containing a biologically active agent

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9393192B2 (en) 2002-07-29 2016-07-19 Alza Corporation Methods and dosage forms for controlled delivery of paliperidone and risperidone
US8877252B2 (en) 2004-04-15 2014-11-04 Alkermes Pharma Ireland Limited Polymer-based sustained release device
US9238076B2 (en) 2004-04-15 2016-01-19 Alkermes Pharma Ireland Limited Polymer-based sustained release device

Also Published As

Publication number Publication date
JP2000503663A (en) 2000-03-28
EP0904063A2 (en) 1999-03-31
ID17505A (en) 1998-01-08
ZA973891B (en) 1997-11-07
EE04540B1 (en) 2005-10-17
NO323591B1 (en) 2007-06-11
IL126509A0 (en) 1999-08-17
JP3822909B2 (en) 2006-09-20
PL188550B1 (en) 2005-02-28
US6403114B1 (en) 2002-06-11
EP0904063B1 (en) 2002-09-04
SK154198A3 (en) 1999-05-07
WO1997041837A2 (en) 1997-11-13
UA59361C2 (en) 2003-09-15
US6110503A (en) 2000-08-29
HUP9902797A2 (en) 1999-12-28
BG102854A (en) 1999-05-31
KR100432677B1 (en) 2004-09-13
CN1224380C (en) 2005-10-26
US6290983B1 (en) 2001-09-18
AR012820A1 (en) 2000-11-22
EE9800383A (en) 1999-04-15
CA2251987A1 (en) 1997-11-13
JP4769119B2 (en) 2011-09-07
NO20065995L (en) 1999-01-06
IL126509A (en) 2004-08-31
NO984808D0 (en) 1998-10-15
US20040197417A1 (en) 2004-10-07
RU2201214C2 (en) 2003-03-27
NZ333196A (en) 2000-02-28
US20020146457A1 (en) 2002-10-10
US20030129249A1 (en) 2003-07-10
AU2897297A (en) 1997-11-26
CA2251987C (en) 2005-05-10
BG64036B1 (en) 2003-11-28
CZ293578B6 (en) 2004-06-16
AU733199B2 (en) 2001-05-10
JP2006249440A (en) 2006-09-21
US5916598A (en) 1999-06-29
HUP9902797A3 (en) 2001-09-28
AR046034A2 (en) 2005-11-23
NO984808L (en) 1999-01-06
US20050276859A1 (en) 2005-12-15
KR20000010697A (en) 2000-02-25
BR9709217A (en) 1999-08-10
SK283852B6 (en) 2004-03-02
CZ359198A3 (en) 1999-03-17
US5792477A (en) 1998-08-11
US20020028249A1 (en) 2002-03-07
PL329720A1 (en) 1999-04-12
CN1226821A (en) 1999-08-25
HU223532B1 (en) 2004-08-30

Similar Documents

Publication Publication Date Title
WO1997041837A3 (en) Microparticles
MY118174A (en) Process for the preparation of microparticles
WO2000049084A8 (en) Hyaluronic acid gel composition, process for producing the same, and medical material containing the same
AU8142594A (en) Microencapsulated 3-piperidinyl-substituted 1,2-benzisoxazoles and 1,2-benzisothiazoles
CA2321461A1 (en) Cross-linked high amylose starch having functional groups as a matrix for the slow release of pharmaceutical agents
WO2003022252A3 (en) Combinatorial type (several vehicles within a housing) controlled release drug delivery device
AU2054188A (en) Skin treatment composition
ZA961255B (en) Pharmaceutical composition containing nucleic acids and uses thereof
DE69635249D1 (en) Production of microspheres
CA2219698A1 (en) Sustained-release preparation
EP0338732A3 (en) Matrix for release of active ingredients
WO1997049736A3 (en) Particles comprising amphiphilic copolymers, having a cross-linked shell domain and an interior core domain, useful for pharmaceutical and other applications
EP0614922A3 (en) Process for the preparation of an aqueous polymer dispersion.
CA2133936A1 (en) Acetylation of lignocellulosic materials
EP1842544A3 (en) Alginate compositions
KR850005271A (en) Method for preparing oral medicament consisting of polycaprolactone matrix
CA2286133A1 (en) Hydrogen peroxide destroying compositions and methods of using same
EP1021725A4 (en) Early detection of lysosomal storage disorders
JP3968385B2 (en) Method for producing amino acid or peptide from protein using supercritical water, food, feed, microbial medium and pharmaceutical containing this protein degradation product
WO2000053208A3 (en) Small molecules having glp-2 like activity
NO324980B1 (en) Microcapsules, processes for the preparation of such as well as products which include said microcapsules.
CA2186171A1 (en) Protective polysaccharide film
WO1999038821A3 (en) Transfecting compositions sensitive to reducing conditions, pharmaceutical compositions containing them, and their applications
ZA200006474B (en) Biologically active composition.
Mattoo et al. Quantitative determination of sialic acid in the monosialoganglioside, GM1, by the thiobarbituric acid method

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 97196219.7

Country of ref document: CN

AK Designated states

Kind code of ref document: A2

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH HU IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TR TT UA UG UZ VN YU AM AZ BY KG KZ MD RU TJ TM

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH KE LS MW SD SZ UG AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
AK Designated states

Kind code of ref document: A3

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH HU IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TR TT UA UG UZ VN YU AM AZ BY KG KZ MD RU TJ TM

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH KE LS MW SD SZ UG AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ

WWE Wipo information: entry into national phase

Ref document number: 1997923063

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2251987

Country of ref document: CA

Ref document number: 2251987

Country of ref document: CA

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 1019980708777

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: PV1998-3591

Country of ref document: CZ

Ref document number: PA/A/1998/009245

Country of ref document: MX

WWE Wipo information: entry into national phase

Ref document number: 1998/02258

Country of ref document: TR

WWE Wipo information: entry into national phase

Ref document number: 154198

Country of ref document: SK

WWE Wipo information: entry into national phase

Ref document number: 333196

Country of ref document: NZ

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWP Wipo information: published in national office

Ref document number: PV1998-3591

Country of ref document: CZ

WWP Wipo information: published in national office

Ref document number: 1997923063

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1019980708777

Country of ref document: KR

WWG Wipo information: grant in national office

Ref document number: 1997923063

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 1019980708777

Country of ref document: KR

WWG Wipo information: grant in national office

Ref document number: PV1998-3591

Country of ref document: CZ