LTIP442A - Prolonged release pharmaceutical preparation, polymeric composition as base for it and process for preparing thereof - Google Patents

Prolonged release pharmaceutical preparation, polymeric composition as base for it and process for preparing thereof

Info

Publication number
LTIP442A
LTIP442A LTIP442A LTIP442A LTIP442A LT IP442 A LTIP442 A LT IP442A LT IP442 A LTIP442 A LT IP442A LT IP442 A LTIP442 A LT IP442A LT IP442 A LTIP442 A LT IP442A
Authority
LT
Lithuania
Prior art keywords
prolonged release
preparing
base
preparation
pharmaceutical preparation
Prior art date
Application number
LTIP442A
Inventor
Minoru Yamada
Seiko Ishiguro
Yasuaki Ogawa
Original Assignee
Takeda Chemical Industries Ltd
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 Takeda Chemical Industries Ltd filed Critical Takeda Chemical Industries Ltd
Publication of LTIP442A publication Critical patent/LTIP442A/en
Publication of LT3277B publication Critical patent/LT3277B/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/74—Synthetic polymeric materials
    • A61K31/745—Polymers of hydrocarbons
    • 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
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50—Microcapsules 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
    • A61K9/5005—Wall or coating material
    • A61K9/5021—Organic macromolecular compounds
    • A61K9/5031—Organic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, poly(lactide-co-glycolide)
    • 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
    • A61K9/1641—Organic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, poloxamers
    • A61K9/1647—Polyesters, e.g. poly(lactide-co-glycolide)
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Preparation (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

1. A polymer for a prolonged release preparation which comprises (A) a polylactic acid and (B) a copolymer of glycolic acid and a hydroxycarboxylic acid of general formula <CHEM> wherein R stands for an alkyl group having 2 to 8 carbons, and wherein the weight ratio of (A) and (B) is in the range of 10/90 to 90/10. The drug is released at a constant rate from the preparation over the total release period without a large burst at the initial stage. Furthermore, the drug release period of the preparation can be freely controlled by varying the blending ratio of (A) and (B).
LTIP442A 1990-10-16 1993-03-19 Prolonged release pharmaceutical preparation, polymeric composition as base for it and process for preparing thereof LT3277B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP27803790 1990-10-16
JP21704591 1991-08-28

Publications (2)

Publication Number Publication Date
LTIP442A true LTIP442A (en) 1994-11-25
LT3277B LT3277B (en) 1995-05-25

Family

ID=26521778

Family Applications (1)

Application Number Title Priority Date Filing Date
LTIP442A LT3277B (en) 1990-10-16 1993-03-19 Prolonged release pharmaceutical preparation, polymeric composition as base for it and process for preparing thereof

Country Status (24)

Country Link
US (1) US5304377A (en)
EP (1) EP0481732B1 (en)
JP (1) JP3196035B2 (en)
KR (1) KR100199119B1 (en)
CN (2) CN1043189C (en)
AT (1) ATE119035T1 (en)
AU (1) AU644019B2 (en)
CA (1) CA2053468C (en)
DE (1) DE69107773T2 (en)
DK (1) DK0481732T3 (en)
EE (1) EE02958B1 (en)
ES (1) ES2069221T3 (en)
FI (1) FI101454B (en)
GE (1) GEP19981287B (en)
IE (1) IE66705B1 (en)
LT (1) LT3277B (en)
LV (1) LV10055B (en)
MX (1) MX9101595A (en)
NO (1) NO302481B1 (en)
NZ (1) NZ240214A (en)
PT (1) PT99236B (en)
RU (1) RU2103005C1 (en)
UA (1) UA27707C2 (en)
ZA (1) ZA918168B (en)

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Also Published As

Publication number Publication date
US5304377A (en) 1994-04-19
KR920007632A (en) 1992-05-27
DE69107773D1 (en) 1995-04-06
MX9101595A (en) 1992-06-05
NZ240214A (en) 1993-02-25
RU2103005C1 (en) 1998-01-27
JPH05112468A (en) 1993-05-07
CA2053468A1 (en) 1992-04-17
LT3277B (en) 1995-05-25
EP0481732A1 (en) 1992-04-22
EP0481732B1 (en) 1995-03-01
DK0481732T3 (en) 1995-05-22
IE66705B1 (en) 1996-01-24
ES2069221T3 (en) 1995-05-01
FI914865L (en) 1992-04-17
NO914032D0 (en) 1991-10-14
LV10055B (en) 1995-02-20
PT99236A (en) 1992-09-30
CN1060851A (en) 1992-05-06
CN1057670C (en) 2000-10-25
NO302481B1 (en) 1998-03-09
FI914865A0 (en) 1991-10-15
ZA918168B (en) 1993-04-14
JP3196035B2 (en) 2001-08-06
NO914032L (en) 1992-04-21
AU644019B2 (en) 1993-12-02
KR100199119B1 (en) 1999-06-15
CN1043189C (en) 1999-05-05
IE913624A1 (en) 1992-04-22
GEP19981287B (en) 1998-09-01
CN1116212A (en) 1996-02-07
UA27707C2 (en) 2000-10-16
FI101454B1 (en) 1998-06-30
AU8586491A (en) 1992-04-30
DE69107773T2 (en) 1995-06-29
LV10055A (en) 1994-05-10
CA2053468C (en) 2002-07-09
FI101454B (en) 1998-06-30
EE02958B1 (en) 1997-02-17
ATE119035T1 (en) 1995-03-15
PT99236B (en) 1999-04-30

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