WO2002049619A3 - Induced phase transition method for the production of microparticles containing hydrophilic active agents - Google Patents

Induced phase transition method for the production of microparticles containing hydrophilic active agents Download PDF

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Publication number
WO2002049619A3
WO2002049619A3 PCT/US2001/050105 US0150105W WO0249619A3 WO 2002049619 A3 WO2002049619 A3 WO 2002049619A3 US 0150105 W US0150105 W US 0150105W WO 0249619 A3 WO0249619 A3 WO 0249619A3
Authority
WO
WIPO (PCT)
Prior art keywords
production
hydrophilic active
active agents
phase transition
microparticles containing
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/US2001/050105
Other languages
French (fr)
Other versions
WO2002049619A9 (en
WO2002049619A2 (en
Inventor
Celal Albayrak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nektar Therapeutics
Original Assignee
Inhale Therapeutics Systems 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26946029&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2002049619(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to AU2002235253A priority Critical patent/AU2002235253A1/en
Priority to EP01985618A priority patent/EP1343478B1/en
Priority to JP2002550961A priority patent/JP2004516262A/en
Priority to CA002432900A priority patent/CA2432900C/en
Priority to DE60130917T priority patent/DE60130917T2/en
Application filed by Inhale Therapeutics Systems Inc filed Critical Inhale Therapeutics Systems Inc
Priority to AU2002235253A priority patent/AU2002235253A8/en
Publication of WO2002049619A2 publication Critical patent/WO2002049619A2/en
Publication of WO2002049619A3 publication Critical patent/WO2002049619A3/en
Anticipated expiration legal-status Critical
Publication of WO2002049619A9 publication Critical patent/WO2002049619A9/en
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
    • A61K31/58—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids containing heterocyclic rings, e.g. danazol, stanozolol, pancuronium or digitogenin
    • 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
    • A61K9/5005—Wall or coating material
    • A61K9/5021—Organic macromolecular compounds
    • A61K9/5031—Organic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, poly(lactide-co-glycolide)

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Veterinary Medicine (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Medicinal Preparation (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Biological Depolymerization Polymers (AREA)
  • Colloid Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Microparticles and a method for their production is described. The process of the present invention provides a simple, quick, and efficient one-pot process for the production of microparticles containing a hydrophilic active agent of various and uniform morphologies, including microcapsules, microspheres, and microsponges. The microparticles are preferably used for pharmaceutical applications.
PCT/US2001/050105 2000-12-21 2001-12-19 Induced phase transition method for the production of microparticles containing hydrophilic active agents Ceased WO2002049619A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AU2002235253A AU2002235253A8 (en) 2000-12-21 2001-12-19 Induced phase transition method for the production of microparticles containing hydrophilic active agents
EP01985618A EP1343478B1 (en) 2000-12-21 2001-12-19 Induced phase transition method for the production of microparticles containing hydrophilic active agents
JP2002550961A JP2004516262A (en) 2000-12-21 2001-12-19 Induced phase transition method for the production of microparticles containing hydrophilic activators
CA002432900A CA2432900C (en) 2000-12-21 2001-12-19 Induced phase transition method for the production of microparticles containing hydrophilic active agents
DE60130917T DE60130917T2 (en) 2000-12-21 2001-12-19 INDUCED PHASE TRANSFER PROCESS FOR THE PREPARATION OF MICROPARTICLES CONTAINING HYDROPHILIC ACTIVE SUBSTANCES
AU2002235253A AU2002235253A1 (en) 2000-12-21 2001-12-19 Induced phase transition method for the production of microparticles containing hydrophilic active agents

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US25752700P 2000-12-21 2000-12-21
US60/257,527 2000-12-21
US30002101P 2001-06-21 2001-06-21
US60/300,021 2001-06-21

Publications (3)

Publication Number Publication Date
WO2002049619A2 WO2002049619A2 (en) 2002-06-27
WO2002049619A3 true WO2002049619A3 (en) 2002-12-05
WO2002049619A9 WO2002049619A9 (en) 2006-05-18

Family

ID=26946029

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2001/050259 Ceased WO2002049620A2 (en) 2000-12-21 2001-12-19 Induced phase transition method for the production of microparticles containing hydrophobic active agents
PCT/US2001/050105 Ceased WO2002049619A2 (en) 2000-12-21 2001-12-19 Induced phase transition method for the production of microparticles containing hydrophilic active agents

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/US2001/050259 Ceased WO2002049620A2 (en) 2000-12-21 2001-12-19 Induced phase transition method for the production of microparticles containing hydrophobic active agents

Country Status (10)

Country Link
US (2) US7252842B2 (en)
EP (2) EP1343478B1 (en)
JP (2) JP2004516263A (en)
AT (2) ATE361057T1 (en)
AU (3) AU2002235253A1 (en)
CA (2) CA2432900C (en)
DE (2) DE60128261T3 (en)
DK (1) DK1343480T4 (en)
ES (2) ES2286157T5 (en)
WO (2) WO2002049620A2 (en)

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