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WO1992005866A3 - Preparation efficace de microcapsules et methode d'utilisation - Google Patents

Preparation efficace de microcapsules et methode d'utilisation Download PDF

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Publication number
WO1992005866A3
WO1992005866A3 PCT/US1991/007366 US9107366W WO9205866A3 WO 1992005866 A3 WO1992005866 A3 WO 1992005866A3 US 9107366 W US9107366 W US 9107366W WO 9205866 A3 WO9205866 A3 WO 9205866A3
Authority
WO
WIPO (PCT)
Prior art keywords
agents
encapsulation
microcapsules
capsules
targeting
Prior art date
Application number
PCT/US1991/007366
Other languages
English (en)
Other versions
WO1992005866A2 (fr
Inventor
Sidney Wallace
David J Yang
Michael Wallace
Li-Ren Kuang
Chun Li
Original Assignee
Univ Texas
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
Application filed by Univ Texas filed Critical Univ Texas
Priority to EP92901967A priority Critical patent/EP0553299B1/fr
Priority to DE69118902T priority patent/DE69118902D1/de
Priority to JP4501033A priority patent/JPH06504716A/ja
Priority to AU90766/91A priority patent/AU659622B2/en
Publication of WO1992005866A2 publication Critical patent/WO1992005866A2/fr
Publication of WO1992005866A3 publication Critical patent/WO1992005866A3/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K49/00—Preparations for testing in vivo
    • A61K49/04—X-ray contrast preparations
    • A61K49/0433—X-ray contrast preparations containing an organic halogenated X-ray contrast-enhancing agent
    • A61K49/0447—Physical forms of mixtures of two different X-ray contrast-enhancing agents, containing at least one X-ray contrast-enhancing agent which is a halogenated organic compound
    • A61K49/0476—Particles, beads, capsules, spheres
    • A61K49/048—Microparticles, microbeads, microcapsules, microspheres, i.e. having a size or diameter higher or equal to 1 micrometer
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
    • A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
    • A61K47/62—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being a protein, peptide or polyamino acid
    • A61K47/64—Drug-peptide, drug-protein or drug-polyamino acid conjugates, i.e. the modifying agent being a peptide, protein or polyamino acid which is covalently bonded or complexed to a therapeutically active agent
    • A61K47/645—Polycationic or polyanionic oligopeptides, polypeptides or polyamino acids, e.g. polylysine, polyarginine, polyglutamic acid or peptide TAT
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K51/00—Preparations containing radioactive substances for use in therapy or testing in vivo
    • A61K51/12—Preparations containing radioactive substances for use in therapy or testing in vivo characterised by a special physical form, e.g. emulsion, microcapsules, liposomes, characterized by a special physical form, e.g. emulsions, dispersions, microcapsules
    • A61K51/1241—Preparations containing radioactive substances for use in therapy or testing in vivo characterised by a special physical form, e.g. emulsion, microcapsules, liposomes, characterized by a special physical form, e.g. emulsions, dispersions, microcapsules particles, powders, lyophilizates, adsorbates, e.g. polymers or resins for adsorption or ion-exchange resins
    • A61K51/1244—Preparations containing radioactive substances for use in therapy or testing in vivo characterised by a special physical form, e.g. emulsion, microcapsules, liposomes, characterized by a special physical form, e.g. emulsions, dispersions, microcapsules particles, powders, lyophilizates, adsorbates, e.g. polymers or resins for adsorption or ion-exchange resins microparticles or nanoparticles, e.g. polymeric nanoparticles
    • A61K51/1251—Preparations containing radioactive substances for use in therapy or testing in vivo characterised by a special physical form, e.g. emulsion, microcapsules, liposomes, characterized by a special physical form, e.g. emulsions, dispersions, microcapsules particles, powders, lyophilizates, adsorbates, e.g. polymers or resins for adsorption or ion-exchange resins microparticles or nanoparticles, e.g. polymeric nanoparticles micro- or nanospheres, micro- or nanobeads, micro- or nanocapsules
    • 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
    • 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
    • A61K9/1605—Excipients; Inactive ingredients
    • A61K9/1629—Organic macromolecular compounds
    • A61K9/1652—Polysaccharides, e.g. alginate, cellulose derivatives; Cyclodextrin
    • 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
    • A61K9/167—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction with an outer layer or coating comprising drug; with chemically bound drugs or non-active substances on their surface
    • 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
    • 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
    • B01J13/06—Making microcapsules or microballoons by phase separation
    • B01J13/12—Making microcapsules or microballoons by phase separation removing solvent from the wall-forming material solution
    • B01J13/125—Making microcapsules or microballoons by phase separation removing solvent from the wall-forming material solution by evaporation of the solvent
    • 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
    • B01J13/20—After-treatment of capsule walls, e.g. hardening
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2123/00—Preparations for testing in vivo

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nanotechnology (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Molecular Biology (AREA)
  • Medicinal Preparation (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)

Abstract

La présente invention concerne une méthode extrêmement efficace de préparation de microcapsules appropriées à l'encapsulation ou la fixation en surface d'agents thérapeutiques et diagnostiques. Dans un aspect de l'invention, une charge de surface du matériau polymère est altérée en conjuguant un ester d'aminoacide au polymère, obtenant ainsi un ciblage amélioré des agents encapsulés sur les cellules des tissus spécifiques. Des exemples comprennent l'encapsulation d'agents hydrophiles radiodiagnostiques dans des capsules de 1 νm pour obtenir une opacification et une encapsulation améliorées d'agents cytotoxiques dans des capsules de 100 νm pour des procédures de chimioembolisation. Les microcapsules sont appropriées à une fixation d'une grande variété d'agents de ciblage, y compris des anticorps, des stéroïdes et des médicaments qui peuvent se fixer sur le polymère de la microcapsule avant ou après formation des microcapsules de dimensions appropriées.
PCT/US1991/007366 1990-10-02 1991-10-02 Preparation efficace de microcapsules et methode d'utilisation WO1992005866A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP92901967A EP0553299B1 (fr) 1990-10-02 1991-10-02 Preparation efficace de microcapsules et methode d'utilisation
DE69118902T DE69118902D1 (de) 1990-10-02 1991-10-02 Leistungsfähige mikrokapselherstellung und verwendungsverfahren
JP4501033A JPH06504716A (ja) 1990-10-02 1991-10-02 有効なマイクロカプセルの製造および使用方法
AU90766/91A AU659622B2 (en) 1990-10-02 1991-10-02 Efficient microcapsule preparation and method of use

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/592,020 US5238714A (en) 1990-10-02 1990-10-02 Efficient microcapsule preparation and method of use
US592,020 1990-10-02

Publications (2)

Publication Number Publication Date
WO1992005866A2 WO1992005866A2 (fr) 1992-04-16
WO1992005866A3 true WO1992005866A3 (fr) 1992-05-29

Family

ID=24368941

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1991/007366 WO1992005866A2 (fr) 1990-10-02 1991-10-02 Preparation efficace de microcapsules et methode d'utilisation

Country Status (8)

Country Link
US (1) US5238714A (fr)
EP (1) EP0553299B1 (fr)
JP (1) JPH06504716A (fr)
AT (1) ATE136811T1 (fr)
AU (1) AU659622B2 (fr)
CA (1) CA2092551A1 (fr)
DE (1) DE69118902D1 (fr)
WO (1) WO1992005866A2 (fr)

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EP0326722A1 (fr) * 1988-02-01 1989-08-09 E.I. Du Pont De Nemours And Company Compositions pesticides à libération contrôlée capables d'automicro-encapsulation

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Journal of Controlled Release, vol. 2, 1985, Elsevier Science Publishers B.V., (Amsterdam, NL), T.R. TICE et al: "Preparation of injectable controlled-release microcapsules by a solvent-evaporation process", pages 343-352, see page 343, right-hand column; page 345, left-hand column , right-hand column, paragraph 2; page 346, right-hand column, paragraph 1 (cited in the application) *
Journal of Microencapsulation, vol. 7, no. 3, July-September 1990, Taylor & Francis Ltd, (London, GB), R. JALIL et al.: "Biodegradable poly(lactic acid) and poly(lactide-co-glycolide) microcapsules: problems associated with preparative techniques and release properties", pages 297-325, see page 298, paragraph 4; page 299, paragraph 2; page 300, paragraphs 2,3; page 302, paragraph 2; page 309, paragraph 3 *

Also Published As

Publication number Publication date
EP0553299A1 (fr) 1993-08-04
EP0553299B1 (fr) 1996-04-17
AU659622B2 (en) 1995-05-25
CA2092551A1 (fr) 1992-04-03
ATE136811T1 (de) 1996-05-15
WO1992005866A2 (fr) 1992-04-16
US5238714A (en) 1993-08-24
DE69118902D1 (de) 1996-05-23
AU9076691A (en) 1992-04-28
JPH06504716A (ja) 1994-06-02

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