WO2002038127A3 - Particle formation methods and their products - Google Patents

Particle formation methods and their products Download PDF

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Publication number
WO2002038127A3
WO2002038127A3 PCT/GB2001/004873 GB0104873W WO0238127A3 WO 2002038127 A3 WO2002038127 A3 WO 2002038127A3 GB 0104873 W GB0104873 W GB 0104873W WO 0238127 A3 WO0238127 A3 WO 0238127A3
Authority
WO
WIPO (PCT)
Prior art keywords
additive
active substance
particle formation
particles
products
Prior art date
Application number
PCT/GB2001/004873
Other languages
French (fr)
Other versions
WO2002038127A2 (en
Inventor
Mazen Hermiz Hanna
Peter York
Original Assignee
Bradford Particle Design Ltd
Mazen Hermiz Hanna
Peter York
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=9902848&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2002038127(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bradford Particle Design Ltd, Mazen Hermiz Hanna, Peter York filed Critical Bradford Particle Design Ltd
Priority to MXPA03003846A priority Critical patent/MXPA03003846A/en
Priority to JP2002540717A priority patent/JP4880863B2/en
Priority to CA2426247A priority patent/CA2426247C/en
Priority to DE60132230T priority patent/DE60132230T2/en
Priority to KR1020037006171A priority patent/KR100822098B1/en
Priority to AU2002210765A priority patent/AU2002210765B9/en
Priority to EP01978670A priority patent/EP1331928B1/en
Priority to AU1076502A priority patent/AU1076502A/en
Publication of WO2002038127A2 publication Critical patent/WO2002038127A2/en
Publication of WO2002038127A3 publication Critical patent/WO2002038127A3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
    • A23L5/30—Physical treatment, e.g. electrical or magnetic means, wave energy or irradiation
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23P—SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
    • A23P10/00—Shaping or working of foodstuffs characterised by the products
    • A23P10/30—Encapsulation of particles, e.g. foodstuff additives
    • 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
    • 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
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P33/00—Antiparasitic agents
    • A61P33/02—Antiprotozoals, e.g. for leishmaniasis, trichomoniasis, toxoplasmosis
    • A61P33/06—Antimalarials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/005—Selection of auxiliary, e.g. for control of crystallisation nuclei, of crystal growth, of adherence to walls; Arrangements for introduction thereof
    • B01D9/0054—Use of anti-solvent
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
    • 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

Abstract

Preparation of particles of an active substance having a layer ofan additive at the particle surfaces, by dissolving both the active substance and the additive in a vehicle to form a target solution, and contacting the target solution with an anti-solvent fluid using a SEDSTM particle formation process, to cause the active substance and additive to coprecipitate. The additive is typically a protective additive, in particular a taste and/or odour masking agent. Also provided is a particulate coformulation made by the method, which has a finite gradient in the relative additive concentration, which concentration increases radially outwards from the active rich core to the additive-rich surface of the particles.
PCT/GB2001/004873 2000-11-09 2001-11-01 Particle formation methods and their products WO2002038127A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
MXPA03003846A MXPA03003846A (en) 2000-11-09 2001-11-01 Particle formation methods and their products.
JP2002540717A JP4880863B2 (en) 2000-11-09 2001-11-01 Particle forming method and product thereof
CA2426247A CA2426247C (en) 2000-11-09 2001-11-01 Particle formation methods and their products
DE60132230T DE60132230T2 (en) 2000-11-09 2001-11-01 PROCESS FOR THE PRODUCTION OF PARTICLES AND THEIR PRODUCTS
KR1020037006171A KR100822098B1 (en) 2000-11-09 2001-11-01 Particle formation methods and their products
AU2002210765A AU2002210765B9 (en) 2000-11-09 2001-11-01 Particle formation methods and their products
EP01978670A EP1331928B1 (en) 2000-11-09 2001-11-01 Particle formation methods and their products
AU1076502A AU1076502A (en) 2000-11-09 2001-11-01 Particle formation methods and their products

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0027357A GB0027357D0 (en) 2000-11-09 2000-11-09 Particle formation methods and their products
GB0027357.3 2000-11-09

Publications (2)

Publication Number Publication Date
WO2002038127A2 WO2002038127A2 (en) 2002-05-16
WO2002038127A3 true WO2002038127A3 (en) 2003-01-09

Family

ID=9902848

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/004873 WO2002038127A2 (en) 2000-11-09 2001-11-01 Particle formation methods and their products

Country Status (13)

Country Link
US (4) US7115280B2 (en)
EP (1) EP1331928B1 (en)
JP (1) JP4880863B2 (en)
KR (1) KR100822098B1 (en)
AT (1) ATE382336T1 (en)
AU (2) AU1076502A (en)
CA (1) CA2426247C (en)
DE (1) DE60132230T2 (en)
ES (1) ES2299519T3 (en)
GB (3) GB0027357D0 (en)
MX (1) MXPA03003846A (en)
TW (1) TWI241198B (en)
WO (1) WO2002038127A2 (en)

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