JPH06511423A - 微粒子の調製 - Google Patents
微粒子の調製Info
- Publication number
- JPH06511423A JPH06511423A JP5503403A JP50340393A JPH06511423A JP H06511423 A JPH06511423 A JP H06511423A JP 5503403 A JP5503403 A JP 5503403A JP 50340393 A JP50340393 A JP 50340393A JP H06511423 A JPH06511423 A JP H06511423A
- Authority
- JP
- Japan
- Prior art keywords
- microcapsules
- microspheres
- air
- peg
- starch
- 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
Links
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- 238000000034 method Methods 0.000 claims abstract description 34
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- 229920002472 Starch Polymers 0.000 claims abstract description 22
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 108091006905 Human Serum Albumin Proteins 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
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- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
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- AFABGHUZZDYHJO-UHFFFAOYSA-N 2-Methylpentane Chemical compound CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 2
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Classifications
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- 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
- A61K9/1682—Processes
- A61K9/1694—Processes resulting in granules or microspheres of the matrix type containing more than 5% of excipient
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
- A61K49/22—Echographic preparations; Ultrasound imaging preparations ; Optoacoustic imaging preparations
- A61K49/222—Echographic preparations; Ultrasound imaging preparations ; Optoacoustic imaging preparations characterised by a special physical form, e.g. emulsions, liposomes
- A61K49/223—Microbubbles, hollow microspheres, free gas bubbles, gas microspheres
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
- A61K49/22—Echographic preparations; Ultrasound imaging preparations ; Optoacoustic imaging preparations
- A61K49/222—Echographic preparations; Ultrasound imaging preparations ; Optoacoustic imaging preparations characterised by a special physical form, e.g. emulsions, liposomes
- A61K49/225—Microparticles, microcapsules
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- 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
- A61K9/5036—Polysaccharides, e.g. gums, alginate; Cyclodextrin
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- 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
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- A61K9/5052—Proteins, e.g. albumin
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- 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
- A61K9/5089—Processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
- B01J13/06—Making microcapsules or microballoons by phase separation
- B01J13/12—Making microcapsules or microballoons by phase separation removing solvent from the wall-forming material solution
- B01J13/125—Making microcapsules or microballoons by phase separation removing solvent from the wall-forming material solution by evaporation of the solvent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y15/00—Nanotechnology for interacting, sensing or actuating, e.g. quantum dots as markers in protein assays or molecular motors
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- Crystallography & Structural Chemistry (AREA)
- Molecular Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Preparation (AREA)
- Manufacturing Of Micro-Capsules (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
Abstract
Description
Claims (14)
- 1.固形微球体または空気充填マイクロカプセルの調製方法であり、液体コアを 含有する初期のマイクロカプセルを形成し、前記液体の少なくともいくらかを、 固形微球体または空気充填マイクロカプセルのいずれかを形成するために、除去 することからなり、ここで、空気充填マイクロカプセルに使用される壁形成材料 は、ヒドロキシエチル澱粉を除く水溶性澱粉誘導体、またはPEG−変性材料で ある、固形微球体または空気充填マイクロカプセルの調製方法。
- 2.固形マイクロカプセルの形成におけるマイクロカプセルの壁部は、水溶性澱 粉誘導体、またはPEG−変性材料から形成され、これらは次いで水不溶性とな る、請求項1に記載の方法。
- 3.澱粉誘導体がアミロデキストリンである、請求項1または2に記載の方法。
- 4.PEG−変性材料が、PEG−アルブミン共役体またはPEG−澱粉または 澱粉誘導体の共役体である、請求項1から3のいずれか一項に記載の方法。
- 5.コアが水−不混和性オイルである、請求項1から4のいずれか一項に記載の 方法。
- 6.オイルが比較的揮発性であり、蒸発により、オイル充填カプセルから除去さ れるものである、請求項5に記載の方法。
- 7.初期のマイクロカプセルが、ダブルエマルジョン方法により形成される、請 求項1から6のいずれか一項に記載の方法。
- 8.さらに、固形微球体または空気充填マイクロカプセルを、液体媒体から分離 し、固形微球体またはマイクロカプセルをフリーズドライすることからなる、請 求項1から7のいずれか一項に記載の方法。
- 9.請求項1から8のいずれか一項に記載の方法により調製されたまたは得るこ との可能な微球体。
- 10.請求項1から8のいずれか一項に記載の方法により調製されたまたは得る ことの可能なマイクロカプセル。
- 11.送達システムにおいて使用される固形微球体であり、微球体は、液体コア の周りの初期のマイクロカプセルを形成し、初期のマイクロカプセルの壁部が崩 壊される問に、前記液体コアの少なくとも1部分を除去することにより形成され たものである、固形微球体。
- 12.診断方法に使用される空気充填マイクロカプセルであり、ヒドロキシエチ ル澱粉を除く水溶性殿粉誘導体またはPEG−変性材料からなる、液体コアの周 りの、初期のマイクロカプセルを形成し、前記液体コアの少なくとも1部分を除 去することにより形成されたものである、空気充填マイクロカプセル。
- 13.請求項9から12の何れか一項に記載の固形微球体または空気充填マイク ロカプセルと、薬剤学的に許容されるキャリアとからなる、体内投与用薬剤組成 物。
- 14.診断画像を形成する方法であり、請求項10または12の空気充填マイク ロカプセルを患者の血流に添加し、像映されるべき器官に通過するまたは入る際 、マイクロカプセルに超音波が反射し、反射波から画像を形成することからなる 、診断画像を形成する方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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GB919116610A GB9116610D0 (en) | 1991-08-01 | 1991-08-01 | Preparation of microparticles |
GB9116610.8 | 1991-08-10 | ||
PCT/GB1992/001421 WO1993002712A1 (en) | 1991-08-01 | 1992-08-03 | Preparation of microparticles |
Publications (2)
Publication Number | Publication Date |
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JPH06511423A true JPH06511423A (ja) | 1994-12-22 |
JP3604381B2 JP3604381B2 (ja) | 2004-12-22 |
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ID=10699347
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP50340393A Expired - Fee Related JP3604381B2 (ja) | 1991-08-01 | 1992-08-03 | 微粒子の調製 |
Country Status (14)
Country | Link |
---|---|
US (1) | US5648095A (ja) |
EP (1) | EP0596984B1 (ja) |
JP (1) | JP3604381B2 (ja) |
AT (1) | ATE186221T1 (ja) |
AU (1) | AU665206B2 (ja) |
CA (1) | CA2113901C (ja) |
DE (1) | DE69230254T2 (ja) |
DK (1) | DK0596984T3 (ja) |
ES (1) | ES2140415T3 (ja) |
FI (1) | FI107993B (ja) |
GB (2) | GB9116610D0 (ja) |
GR (1) | GR3032234T3 (ja) |
NO (1) | NO308448B1 (ja) |
WO (1) | WO1993002712A1 (ja) |
Families Citing this family (166)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5922304A (en) | 1989-12-22 | 1999-07-13 | Imarx Pharmaceutical Corp. | Gaseous precursor filled microspheres as magnetic resonance imaging contrast agents |
US5542935A (en) | 1989-12-22 | 1996-08-06 | Imarx Pharmaceutical Corp. | Therapeutic delivery systems related applications |
US5776429A (en) | 1989-12-22 | 1998-07-07 | Imarx Pharmaceutical Corp. | Method of preparing gas-filled microspheres using a lyophilized lipids |
US6088613A (en) | 1989-12-22 | 2000-07-11 | Imarx Pharmaceutical Corp. | Method of magnetic resonance focused surgical and therapeutic ultrasound |
US5585112A (en) | 1989-12-22 | 1996-12-17 | Imarx Pharmaceutical Corp. | Method of preparing gas and gaseous precursor-filled microspheres |
US6551576B1 (en) | 1989-12-22 | 2003-04-22 | Bristol-Myers Squibb Medical Imaging, Inc. | Container with multi-phase composition for use in diagnostic and therapeutic applications |
US6613306B1 (en) * | 1990-04-02 | 2003-09-02 | Bracco International B.V. | Ultrasound contrast agents and methods of making and using them |
US6465188B1 (en) | 1990-06-11 | 2002-10-15 | Gilead Sciences, Inc. | Nucleic acid ligand complexes |
GB9106673D0 (en) * | 1991-03-28 | 1991-05-15 | Hafslund Nycomed As | Improvements in or relating to contrast agents |
US5874062A (en) | 1991-04-05 | 1999-02-23 | Imarx Pharmaceutical Corp. | Methods of computed tomography using perfluorocarbon gaseous filled microspheres as contrast agents |
US5205290A (en) | 1991-04-05 | 1993-04-27 | Unger Evan C | Low density microspheres and their use as contrast agents for computed tomography |
GB9107628D0 (en) * | 1991-04-10 | 1991-05-29 | Moonbrook Limited | Preparation of diagnostic agents |
US5993805A (en) * | 1991-04-10 | 1999-11-30 | Quadrant Healthcare (Uk) Limited | Spray-dried microparticles and their use as therapeutic vehicles |
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- 1992-08-03 DK DK92916557T patent/DK0596984T3/da active
- 1992-08-03 WO PCT/GB1992/001421 patent/WO1993002712A1/en active IP Right Grant
- 1992-08-03 JP JP50340393A patent/JP3604381B2/ja not_active Expired - Fee Related
- 1992-08-03 AT AT92916557T patent/ATE186221T1/de not_active IP Right Cessation
- 1992-08-03 EP EP92916557A patent/EP0596984B1/en not_active Expired - Lifetime
-
1994
- 1994-01-31 NO NO940319A patent/NO308448B1/no unknown
- 1994-01-31 FI FI940456A patent/FI107993B/fi not_active IP Right Cessation
-
1999
- 1999-12-22 GR GR990403321T patent/GR3032234T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
GR3032234T3 (en) | 2000-04-27 |
NO308448B1 (no) | 2000-09-18 |
FI940456A (fi) | 1994-01-31 |
CA2113901A1 (en) | 1993-02-18 |
FI107993B (fi) | 2001-11-15 |
ES2140415T3 (es) | 2000-03-01 |
ATE186221T1 (de) | 1999-11-15 |
NO940319L (no) | 1994-01-31 |
GB9400981D0 (en) | 1994-04-13 |
JP3604381B2 (ja) | 2004-12-22 |
EP0596984B1 (en) | 1999-11-03 |
AU665206B2 (en) | 1995-12-21 |
GB2273657B (en) | 1995-03-15 |
WO1993002712A1 (en) | 1993-02-18 |
NO940319D0 (no) | 1994-01-31 |
AU2376892A (en) | 1993-03-02 |
GB2273657A (en) | 1994-06-29 |
FI940456A0 (fi) | 1994-01-31 |
DE69230254T2 (de) | 2000-03-16 |
CA2113901C (en) | 2003-12-02 |
GB9116610D0 (en) | 1991-09-18 |
US5648095A (en) | 1997-07-15 |
DK0596984T3 (da) | 2000-01-03 |
DE69230254D1 (de) | 1999-12-09 |
EP0596984A1 (en) | 1994-05-18 |
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