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1. WO2002051399 - DIVALPROEX SODIUM DOSAGE FORMS AND A PROCESS FOR THEIR PRODUCTION

Publication Number WO/2002/051399
Publication Date 04.07.2002
International Application No. PCT/US2001/043157
International Filing Date 27.11.2001
Chapter 2 Demand Filed 10.05.2002
IPC
A61K 9/16 2006.1
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
16Agglomerates; Granulates; Microbeadlets
A61K 9/20 2006.1
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 31/19 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31Medicinal preparations containing organic active ingredients
185Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
19Carboxylic acids, e.g. valproic acid
CPC
A61K 31/19
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31Medicinal preparations containing organic active ingredients
185Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic, hydroximic acids
19Carboxylic acids, e.g. valproic acid
A61K 9/1611
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
1611Inorganic compounds
A61K 9/1652
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
1652Polysaccharides, e.g. alginate, cellulose derivatives; Cyclodextrin
A61K 9/1694
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
1682Processes
1694resulting in granules or microspheres of the matrix type containing more than 5% of excipient
A61K 9/2009
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
2004Excipients; Inactive ingredients
2009Inorganic compounds
A61K 9/2054
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
2004Excipients; Inactive ingredients
2022Organic macromolecular compounds
205Polysaccharides, e.g. alginate, gums; Cyclodextrin
2054Cellulose; Cellulose derivatives, e.g. hydroxypropyl methylcellulose
Applicants
  • ABBOTT LABORATORIES [US]/[US]
Inventors
  • QIU, Yihong
  • CHERMAK, Todd, E.
  • ENGH, Kevin, R.
  • FAITSCH, Lynn
  • SLADE, Russell, T.
Agents
  • DIXON, Michael, J.
Priority Data
09/747,91222.12.2000US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) DIVALPROEX SODIUM DOSAGE FORMS AND A PROCESS FOR THEIR PRODUCTION
(FR) FORMES POSOLOGIQUES DU DIVALPROEX DE SODIUM ET PROCEDE DE PRODUCTION DE CES DERNIERES
Abstract
(EN) The present invention is directed to a new process for granulating valproate compounds, such as divalproex sodium, in which the compound is melted in the absence of a binder and admixed with one or more excipients to produce granules. The resulting dosage forms have an increased drug loading factor in the range of 75 w/w% to 90 w/w%.
(FR) La présente invention concerne un nouveau procédé de granulation de composés de valproate, tels que le divalproex de sodium, dans lequel le composé est mélangé en l'absence de liant puis mélangé à nouveau avec un ou plusieurs excipients pour produire des granules. Les formes posologiques résultantes présentent un facteur de charge du médicament plus important qui se situe dans la fourchette comprise entre 75 % en poids et 90 % en poids.
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