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1. CA2339482 - SYSTEMES D'ADMINISTRATION DE MEDICAMENTS AU MOYEN D'HYDROGELS COMPOSITES

Office
Canada
Numéro de la demande 2339482
Date de la demande 13.08.1999
Numéro de publication 2339482
Date de publication 24.02.2000
Numéro de délivrance
Date de délivrance 20.10.2009
Type de publication C
CIB
A61K 9/10
ANÉCESSITÉS COURANTES DE LA VIE
61SCIENCES MÉDICALE OU VÉTÉRINAIRE; HYGIÈNE
KPRÉPARATIONS À USAGE MÉDICAL, DENTAIRE OU POUR LA TOILETTE
9Préparations médicinales caractérisées par un aspect particulier
10Dispersions; Emulsions
A61K 9/16
ANÉCESSITÉS COURANTES DE LA VIE
61SCIENCES MÉDICALE OU VÉTÉRINAIRE; HYGIÈNE
KPRÉPARATIONS À USAGE MÉDICAL, DENTAIRE OU POUR LA TOILETTE
9Préparations médicinales caractérisées par un aspect particulier
14à l'état particulaire, p.ex. poudres
16Agglomérés; Granulés; Microbilles
A61K 47/34
ANÉCESSITÉS COURANTES DE LA VIE
61SCIENCES MÉDICALE OU VÉTÉRINAIRE; HYGIÈNE
KPRÉPARATIONS À USAGE MÉDICAL, DENTAIRE OU POUR LA TOILETTE
47Préparations médicinales caractérisées par les ingrédients non actifs utilisés, p.ex. les supports ou les additifs inertes; Agents de ciblage ou de modification chimiquement liés à l’ingrédient actif
30Composés macromoléculaires organiques ou inorganiques, p.ex. polyphosphates inorganiques
34Composés macromoléculaires obtenus par des réactions autres que celles faisant intervenir uniquement des liaisons non saturées carbone-carbone, p.ex. polyesters, acides polyaminés, polysiloxanes, polyphosphazines, copolymères de polyalkylène glycol ou de poloxamères
CPC
A61K 9/1647
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9Medicinal preparations characterised by special physical form
14Particulate form, e.g. powders, ; Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
16Agglomerates; Granulates; Microbeadlets ; ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
1605Excipients; Inactive ingredients
1629Organic macromolecular compounds
1641obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, poloxamers
1647Polyesters, e.g. poly(lactide-co-glycolide)
A61K 9/167
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9Medicinal preparations characterised by special physical form
14Particulate form, e.g. powders, ; Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
16Agglomerates; Granulates; Microbeadlets ; ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
167with an outer layer or coating comprising drug; with chemically bound drugs or non-active substances on their surface
A61K 9/2077
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
A61K 51/1213
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
51Preparations containing radioactive substances for use in therapy or testing in vivo
12characterised by a special physical form, e.g. emulsion, microcapsules, liposomes ; , characterized by a special physical form, e.g. emulsions, dispersions, microcapsules
1213Semi-solid forms, gels, hydrogels, ointments, fats and waxes that are solid at room temperature
Déposants INCEPT LLC
Inventeurs SAWHNEY, AMARPREET S.
Données relatives à la priorité 09134287 14.08.1998 US
Titre
(EN) COMPOSITE HYDROGEL DRUG DELIVERY SYSTEMS
(FR) SYSTEMES D'ADMINISTRATION DE MEDICAMENTS AU MOYEN D'HYDROGELS COMPOSITES
Abrégé
(EN) Compositions and methods are provided to control the release of relatively low molecular weight therapeutic species through hydrogels by first dispersing or dissolving such therapeutic species within relatively hydrophobic rate modifying agents to form a mixture. The mixture is formed into microparticles that are dispersed within bioabsorbable hydrogels, so as to release the water soluble therapeutic agents in a controlled fashion. Methods of using the compositions of the present invention in therapeutic systems are also provided.