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1. WO1998014179 - TASTE-MASKED MICROCAPSULE COMPOSITIONS AND METHODS OF MANUFACTURE

Publication Number WO/1998/014179
Publication Date 09.04.1998
International Application No. PCT/US1997/017752
International Filing Date 01.10.1997
Chapter 2 Demand Filed 30.04.1998
IPC
A61K 9/00 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9Medicinal preparations characterised by special physical form
A61K 9/20 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9Medicinal preparations characterised by special physical form
20Pills, lozenges or tablets
A61K 9/50 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9Medicinal preparations characterised by special physical form
48Preparations in capsules, e.g. of gelatin, of chocolate
50Microcapsules
A61K 31/341 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31Medicinal preparations containing organic active ingredients
33Heterocyclic compounds
335having oxygen as the only ring hetero atom, e.g. fungichromin
34having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide
341not condensed with another ring, e.g. ranitidine, furosemide, bufetolol, muscarine
CPC
A61K 31/341
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31Medicinal preparations containing organic active ingredients
33Heterocyclic compounds
335having oxygen as the only ring hetero atom, e.g. fungichromin
34having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide
341not condensed with another ring, e.g. ranitidine, furosemide, bufetolol, muscarine
A61K 9/0007
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9Medicinal preparations characterised by special physical form
0002Galenical forms characterised by the drug release technique; Application systems commanded by energy
0007Effervescent
A61K 9/2081
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9Medicinal preparations characterised by special physical form
20Pills, tablets, ; discs, rods
2072characterised by shape, structure or size; Tablets with holes, special break lines or identification marks; Partially coated tablets; Disintegrating flat shaped forms
2077Tablets comprising drug-containing microparticles in a substantial amount of supporting matrix; Multiparticulate tablets
2081with microcapsules or coated microparticles according to A61K9/50
A61K 9/5026
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9Medicinal preparations characterised by special physical form
48Preparations in capsules, e.g. of gelatin, of chocolate
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
5005Wall or coating material
5021Organic macromolecular compounds
5026obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone, poly(meth)acrylates
A61K 9/5042
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9Medicinal preparations characterised by special physical form
48Preparations in capsules, e.g. of gelatin, of chocolate
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
5005Wall or coating material
5021Organic macromolecular compounds
5036Polysaccharides, e.g. gums, alginate; Cyclodextrin
5042Cellulose; Cellulose derivatives, e.g. phthalate or acetate succinate esters of hydroxypropyl methylcellulose
A61P 1/04
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
1Drugs for disorders of the alimentary tract or the digestive system
04for ulcers, gastritis or reflux esophagitis, e.g. antacids, inhibitors of acid secretion, mucosal protectants
Applicants
  • CIMA LABS INC. [US]/[US]
  • SRI INTERNATIONAL [US]/[US]
Inventors
  • FRIEND, David, R.
  • NG, Steven
  • SARABIA, Rafael, E.
  • WEBER, Thomas, P.
  • GEOFFROY, Jean-Marie
Agents
  • MILLET, Marcus, J.
Priority Data
60/027,17001.10.1996US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TASTE-MASKED MICROCAPSULE COMPOSITIONS AND METHODS OF MANUFACTURE
(FR) COMPOSITIONS EN MICROCAPSULE A MASQUAGE DE GOUT ET PROCEDES DE FABRICATION
Abstract
(EN)
A taste-masked microcapsule composition for administration of a drug is provided. The composition comprises microcapsules of drug and a substantially water-insoluble polymeric material, typically a cellulosic polymer. The microcapsule composition may be incorporated into any number of pharmaceutical formulations, including chewable tablets, effervescent tablets, powders, liquid dispersions, and the like. A method for masking the taste of drugs is also provided, involving a phase separation coacervation technique in which drug is coated with relatively high levels of a polymeric material. These high coating levels give rise to effective taste masking, while nevertheless allowing targeted release of drug, so that the drug is released shortly after passage through the mouth.
(FR)
Composition en microcapsule à masquage de goût pour l'administration d'un médicament. Plusieurs microcapsules renferment un médicament et une matière polymère sensiblement insoluble dans l'eau, généralement de type polymère cellulosique. Il est possible d'intégrer la composition à un nombre non limité de préparations pharmaceutiques, notamment les comprimés à mâcher, les comprimés effervescents, les poudres, les dispersions liquides et autres. On décrit aussi un procédé relatif au masquage du goût des médicaments, qui repose sur une technique de séparation-coacervation de phase, pour l'enduction d'un médicament avec des niveaux relativement élevés de matière polymère. Ces niveaux élevés d'enduction conduisent à un masquage efficace du goût, sans toutefois nuire à la libération ciblée du médicament, lequel est ainsi libéré peu après son passage dans la cavité buccale.
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