CA2131647A1 - Sustained Release Heterodisperse Hydrogel Systems for Insoluble Drugs - Google Patents

Sustained Release Heterodisperse Hydrogel Systems for Insoluble Drugs

Info

Publication number
CA2131647A1
CA2131647A1 CA2131647A CA2131647A CA2131647A1 CA 2131647 A1 CA2131647 A1 CA 2131647A1 CA 2131647 A CA2131647 A CA 2131647A CA 2131647 A CA2131647 A CA 2131647A CA 2131647 A1 CA2131647 A1 CA 2131647A1
Authority
CA
Canada
Prior art keywords
sustained release
insoluble drugs
hydrogel systems
hydrophobic polymer
gelling agent
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA2131647A
Other languages
French (fr)
Other versions
CA2131647C (en
Inventor
Anand R. Baichwal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Penwest Pharmaceuticals Co
Original Assignee
Mendell Edward Co Inc
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 Mendell Edward Co Inc filed Critical Mendell Edward Co Inc
Publication of CA2131647A1 publication Critical patent/CA2131647A1/en
Application granted granted Critical
Publication of CA2131647C publication Critical patent/CA2131647C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/2095—Tabletting processes; Dosage units made by direct compression of powders or specially processed granules, by eliminating solvents, by melt-extrusion, by injection molding, by 3D printing
    • 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
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/2004—Excipients; Inactive ingredients
    • A61K9/2009—Inorganic compounds
    • 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
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/2004—Excipients; Inactive ingredients
    • A61K9/2013—Organic compounds, e.g. phospholipids, fats
    • A61K9/2018—Sugars, or sugar alcohols, e.g. lactose, mannitol; Derivatives thereof, e.g. polysorbates
    • 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
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/2004—Excipients; Inactive ingredients
    • A61K9/2022—Organic macromolecular compounds
    • A61K9/205—Polysaccharides, e.g. alginate, gums; 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
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/2004—Excipients; Inactive ingredients
    • A61K9/2022—Organic macromolecular compounds
    • A61K9/205—Polysaccharides, e.g. alginate, gums; Cyclodextrin
    • A61K9/2054—Cellulose; Cellulose derivatives, e.g. hydroxypropyl methylcellulose
    • 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
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/28—Dragees; Coated pills or tablets, e.g. with film or compression coating
    • A61K9/2806—Coating materials
    • A61K9/2833—Organic macromolecular compounds
    • A61K9/286—Polysaccharides, e.g. gums; Cyclodextrin
    • A61K9/2866—Cellulose; Cellulose derivatives, e.g. hydroxypropyl methylcellulose
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
    • C08J3/075—Macromolecular gels

Abstract

A sustained release pharmaceutical formulation includes a sustained release excipient including a gelling agent, an inert pharmaceutical diluent, an optional cationic crosslinking agent, and a medicament having moderate to poor solubility is disclosed. In certain embodiments, the sustained release excipient is granulated with a solution or suspension of a hydrophobic polymer in an amount effective to slow the hydration of the gelling agent when the formulation is exposed to an environmental fluid. In another embodiment, the tablet is coated with a hydrophobic polymer.
CA002131647A 1993-09-09 1994-09-08 Sustained release heterodisperse hydrogel systems for insoluble drugs Expired - Lifetime CA2131647C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/118,924 1993-09-09
US08/118,924 US5455046A (en) 1993-09-09 1993-09-09 Sustained release heterodisperse hydrogel systems for insoluble drugs

Publications (2)

Publication Number Publication Date
CA2131647A1 true CA2131647A1 (en) 1995-03-10
CA2131647C CA2131647C (en) 1999-08-10

Family

ID=22381584

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002131647A Expired - Lifetime CA2131647C (en) 1993-09-09 1994-09-08 Sustained release heterodisperse hydrogel systems for insoluble drugs

Country Status (11)

Country Link
US (6) US5455046A (en)
EP (2) EP1101489B1 (en)
JP (1) JP4077886B2 (en)
AT (2) ATE207742T1 (en)
CA (1) CA2131647C (en)
DE (3) DE642785T1 (en)
DK (1) DK0642785T3 (en)
ES (2) ES2254274T3 (en)
GR (1) GR950300035T1 (en)
IL (1) IL110744A (en)
PT (2) PT1101489E (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
US6689386B2 (en) 1996-07-08 2004-02-10 Penwest Pharmaceuticals Co. Sustained release matrix for high-dose insoluble drugs

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US5554387A (en) 1996-09-10
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US5667801A (en) 1997-09-16
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JP4077886B2 (en) 2008-04-23
IL110744A0 (en) 1994-08-22
US5846563A (en) 1998-12-08
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ATE207742T1 (en) 2001-11-15
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DE69434640D1 (en) 2006-04-27
DE69428853D1 (en) 2001-12-06
ES2070810T3 (en) 2001-12-16
CA2131647C (en) 1999-08-10
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ATE318586T1 (en) 2006-03-15
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US6136343A (en) 2000-10-24
US5455046A (en) 1995-10-03
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IL110744A (en) 1998-12-27
EP1101489A2 (en) 2001-05-23

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