Title:
DRUG-ENCLOSING MULTILAYER STRUCTURE PARTICULATE AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2004/089417
Kind Code:
A1
Abstract:
A drug-enclosing multilayer structure particulate comprising a calcium carbonate compound particulate enclosing a biologically active substance wherein occasionally ions of at least one metal selected from among zinc, magnesium, iron and copper are contained and, superimposed on the surface thereof, a coating of calcium phosphate porous material and/or biopolymer.
Inventors:
TANAKA JUNZO (JP)
IKOMA TOSHIYUKI (JP)
MIZUSHIMA YUTAKA (JP)
IKOMA TOSHIYUKI (JP)
MIZUSHIMA YUTAKA (JP)
Application Number:
PCT/JP2004/005007
Publication Date:
October 21, 2004
Filing Date:
April 07, 2004
Export Citation:
Assignee:
NAT INST FOR MATERIALS SCIENCE (JP)
LTT BIO PHARMA CO LTD (JP)
TANAKA JUNZO (JP)
IKOMA TOSHIYUKI (JP)
MIZUSHIMA YUTAKA (JP)
LTT BIO PHARMA CO LTD (JP)
TANAKA JUNZO (JP)
IKOMA TOSHIYUKI (JP)
MIZUSHIMA YUTAKA (JP)
International Classes:
A61K9/50; A61K9/54; A61K31/573; A61K31/7088; A61K31/726; A61K38/00; A61K38/04; A61K38/21; A61K38/22; A61K38/28; A61K38/43; A61K39/00; A61K39/395; A61K45/00; A61K47/04; A61K47/36; A61K48/00; A61P5/00; A61P9/00; A61P29/00; A61P31/00; A61P43/00; (IPC1-7): A61K47/04; A61K9/54; A61K31/7088; A61K31/726; A61K38/20; A61K38/21; A61K38/22; A61K39/00; A61K39/395; A61K45/00; A61K47/36
Domestic Patent References:
| WO2001089483A1 | 2001-11-29 |
Foreign References:
| JP2002348234A | 2002-12-04 | |||
| JPH06298639A | 1994-10-25 | |||
| JPH05500668A | 1993-02-12 | |||
| JPH11180705A | 1999-07-06 | |||
| JPH07118011A | 1995-05-09 | |||
| JP2003212756A | 2003-07-30 |
Attorney, Agent or Firm:
Hiraki, Yusuke (3-20 Toranomon 4-chom, Minato-ku Tokyo, JP)
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