JPH08506111A - 生物活性物質を運搬するための磁気応答組成物、その製造方法および用途 - Google Patents
生物活性物質を運搬するための磁気応答組成物、その製造方法および用途Info
- Publication number
- JPH08506111A JPH08506111A JP6517282A JP51728294A JPH08506111A JP H08506111 A JPH08506111 A JP H08506111A JP 6517282 A JP6517282 A JP 6517282A JP 51728294 A JP51728294 A JP 51728294A JP H08506111 A JPH08506111 A JP H08506111A
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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
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
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- A61K9/5094—Microcapsules containing magnetic carrier material, e.g. ferrite for drug targeting
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K41/00—Medicinal preparations obtained by treating materials with wave energy or particle radiation ; Therapies using these preparations
- A61K41/0052—Thermotherapy; Hyperthermia; Magnetic induction; Induction heating therapy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
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- Epidemiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Organic Chemistry (AREA)
- Medicinal Preparation (AREA)
- Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Medicines Containing Plant Substances (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.注入可能な粒子から成る生物活性物質を運搬するための磁気応答組成物で あって、各粒子が炭素と鉄とを含み、該炭素が各粒子の体積全体にわたって分散 されていることを特徴とする組成物。 2.炭素が、組成物の約1〜95%の間にあり、そして前記粒子の大きさが約 5μm以下である請求項1記載の組成物。 3.炭素が、組成物の約20〜50%の間にあり、組成物の残りが鉄である請 求項1記載の組成物。 4.粒子が平均して粒子の質量の約7.5%までの生物活性物質の吸収能を有 する請求項1〜3のいずれかに記載の組成物。 5.鉄が、実質的に酸化されていない請求項1〜4のいずれかに記載の組成物 。 6.各粒子中の鉄が、各粒子の体積全体にわたって副構造を形成し、炭素が該 副構造中に保持される請求項1〜5のいずれかに記載の組成物。 7.粒子が、一般に回転楕円状であり、炭素と鉄が機械的に接合され、そして 炭素が各粒子中、粒子の表面とおよび内部との両方で結合されている請求項1〜 6のいずれかに記載の組成物。 8.病気の局在化生体内治療のための磁気応答 組成物であって、 大きさが約1μm〜5μmの間の粒子を含み、各粒子が炭素と鉄とを含み、該 炭素が各粒子の体積全体に分散されているキャリアと、該粒子の上に吸収された 、病気を治療する効能によって選択された生物活性物質とから成ることを特徴と する組成物。 9.前記物質が、平均してキャリアの各粒子の質量の約2.5%〜7.5%に 等しい量から成る請求項8記載の組成物。 10.各粒子中の鉄が、各粒子の体積全体にわたって副構造を形成し、炭素が該 副構造中に保持される請求項8または9に記載の組成物。 11.粒子が、一般に回転楕円状であり、炭素と鉄が機械的に接合され、そして 炭素が各粒子中、粒子の表面とおよび内部との両方で結合されている請求項8〜 10のいずれかに記載の組成物。 12.生物活性物質が抗腫瘍物質である請求項8〜10のいずれかに記載の組成 物。 13.生物活性物質を運搬するための磁気応答組成物を製造する方法であって、 鉄粉と炭素粉末の機械的混合物を、該粉末を結合し注入可能な大きさの粒子に するのに充分な時間共変形し、前記粒子は炭素と鉄とを含み、該炭 素が各粒子の体積全体に分散されていることを特徴とする方法。 14.前記粉末を共変形する工程が環境温度で行われ、そして前記大きさが約5 μm以下である請求項13記載の方法。 15.炭素粉末が活性炭である請求項13または14に記載の方法。 16.前記粉末を共変形する工程が、約300μm以下の大きさを有する鉄粒子 を約600μm以下の大きさを有する炭素顆粒にわたって分散させ、比較的均一 な混合を得ることおよび該混合物を約12時間までミルすることを含む請求項1 3〜15のいずれかに記載の方法。 17.前記粉末を共変形する工程が、鉄の実質的な酸化を阻害するために選択さ れる液体の存在下実施されることを含む請求項13〜16のいずれかに記載の方 法。 18.前記液体が実質的に粒子の無菌状態を維持するためにも選択される請求項 17記載の方法。 19.粒子を大きさでそして磁気応答性で選別する工程からさらに成る請求項1 3〜19のいずれかに記載の方法。 20.病気の局在化生体内治療のための磁気応答組成物の製造方法であって、 鉄と炭素の混合物を提供すること、 粒子の相当の部分が鉄と炭素を含み、該炭素が各粒子の体積全体に分散されて いる粒子へ炭素と鉄を充分に結合するために前記混合物を機械的に加工すること 、 前記粒子の相当部分から注入可能な大きさの粒子を選択するために粒子を分別 すること、そして生物活性物質を選択された粒子の上に吸収させることから成る ことを特徴とする方法。 21.前記物質を吸収する工程は、前記粒子の平均質量のおよそ2.5%〜7. 5%の量の前記物質が吸収されるような充分な吸収を含むことを特徴とする請求 項20記載の方法。 22.さらに前記混合物を液体で湿らせることを含むことを特徴とする請求項2 0または21いずれかに記載の方法。 23.前記液体はエタノールであり、該方法はさらに、機械的に処理された前記 粒子を乾燥する工程を含むことを特徴とする請求項22記載の方法。 24.前記粒子を分離する工程は、1μm以下の結合していない炭素および粒子 を取り除くために、粒子を磁気的に選択することを含むことを特徴とする請求項 20〜23のいずれかに記載の方法。 25.前記粒子を分離する工程は、5μm以上の 粒子を取り除くために、前記粒子を濾過する工程を含むことを特徴とする請求項 20〜24のいずれかに記載の方法。 26.病気を治療する効能によって選択された生物活性物質が上に吸収された磁 気応答フェロカーボンキャリアを提供すること、 デリバー手段を治療される体の血管へ、治療される部位から短距離内で、そし て該部位に血液を運ぶ血管のネットワークの枝において挿入すること、 デリバー手段を通してキャリアを注入すること、 注入されたキャリアの相当量を導き、前記キャリアの相当量を該部位に保持し 、キャリアを前記血管のネットワークの柔組織の近傍へ引き寄せるために充分な 強度の磁場を体の外側で前記部位の近傍に生じさせ、それによって血管のネット ワークのいかなる部分にも実質的な塞栓化を避けることから成ることを特徴とす る病気の局在化生体内治療方法。 27.より大きな比重を有する、前記体によって作られた物質によって、前記キ ャリア内の前記物質を置き換えるプロセスによって前記部位において前記キャリ アから生物活性物質が放出されることを特徴とする請求項26記載の方法。 28.血液による前記物質の前記キャリアからの流出は30%以下であることを 特徴とする請求項27記載の方法。 29.注入された前記キャリアは注入後30日以内に体から完全に排出される、 および体によって代謝されることを特徴とする請求項26〜28のいずれかに記 載の方法。 30.前記キャリアは粒子を含み、各粒子は鉄および炭素をその中に有し、前記 炭素は前記各粒子の体積全体にわたって分散していることを特徴とする請求項2 6〜29のいずれかに記載の方法。 31.磁場を形成する工程は、前記キャリアの応答を誘発する250 Oe(エ ルステッド)/cm程度のわずかの磁場を利用することを含むことを特徴とする 請求項26〜30のいずれかに記載の方法。 32.粒子が鉄と炭素を含み、該炭素が各粒子の体積全体に分散されている、大 きさで5μm以下の粒子を含む磁気応答キャリア組成物の上へ生物活性物質を吸 収させること、 キャリアとその上に吸収された生物活性物質を体内へ注入すること、そして 注入されたキャリアの相当量を導き、前記キャリアの相当量を該部位に保持す るのに充分な強度 の磁場を、体の外部で治療部位の近傍に生じさせることを特徴とする病気の局在 化生体内治療方法。 33.前記磁場は250 Oe/cmの程度の低い強度の磁場において前記キャ リア組成物による応答を誘発することを特徴とする請求項32に記載の方法。 34.前記キャリア組成物はの前記生物活性物質をその重量の2.5%以上吸収 することを特徴とする請求項32または請求項33のいずれかに記載の方法。 35.前記キャリア組成物は前記生物活性物質をその重量のおよそ7.5%まで 吸収することを特徴とする請求項32〜34のいずれかに記載の方法。 36.磁場を形成する工程は、治療部位における血管のネットワークの柔組織の 近傍に前記キャリア組成物を引き寄せるために充分な強度の磁場を形成すること を含み、それによって血管の前記ネットワークのいかなる所においても実質的な 塞栓化が避けられることを特徴とする請求項32〜35のいずれかに記載の方法 。 37.より大きな比重を有する、前記体によって作られた物質によって前記キャ リア組成物中の前記物質を置き換えるプロセスによって前記部位に おいて前記キャリア組成物から前記生物活性物質が放出されることを特徴とする 請求項32〜36のいずれかに記載の方法。
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US1136393A | 1993-01-29 | 1993-01-29 | |
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US011,363 | 1993-01-29 | ||
PCT/US1994/000892 WO1994016683A1 (en) | 1993-01-29 | 1994-01-26 | Magnetically responsive composition for carrying biologically active substances and methods of production and use |
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JP2000175975A Division JP3176600B2 (ja) | 1993-01-29 | 2000-06-12 | 生物活性物質を運搬するための磁気応答組成物 |
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JPH08506111A true JPH08506111A (ja) | 1996-07-02 |
JP3145120B2 JP3145120B2 (ja) | 2001-03-12 |
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JP51728294A Expired - Fee Related JP3145120B2 (ja) | 1993-01-29 | 1994-01-26 | 生物活性物質を運搬するための磁気応答組成物の製造方法 |
JP2000175975A Expired - Fee Related JP3176600B2 (ja) | 1993-01-29 | 2000-06-12 | 生物活性物質を運搬するための磁気応答組成物 |
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US (3) | US5549915A (ja) |
EP (1) | EP0683665B1 (ja) |
JP (2) | JP3145120B2 (ja) |
AT (1) | ATE210967T1 (ja) |
AU (1) | AU6165394A (ja) |
CA (1) | CA2154913C (ja) |
DE (1) | DE69429507T2 (ja) |
DK (1) | DK0683665T3 (ja) |
ES (1) | ES2165385T3 (ja) |
HK (1) | HK1013256A1 (ja) |
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- 1994-01-26 AT AT94908636T patent/ATE210967T1/de not_active IP Right Cessation
- 1994-01-26 JP JP51728294A patent/JP3145120B2/ja not_active Expired - Fee Related
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- 1994-01-26 ES ES94908636T patent/ES2165385T3/es not_active Expired - Lifetime
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EP0683665A4 (en) | 1996-04-17 |
US5549915A (en) | 1996-08-27 |
EP0683665B1 (en) | 2001-12-19 |
DE69429507T2 (de) | 2002-05-16 |
US5705195A (en) | 1998-01-06 |
JP3176600B2 (ja) | 2001-06-18 |
HK1013256A1 (en) | 1999-08-20 |
CA2154913C (en) | 1999-10-19 |
DE69429507D1 (de) | 2002-01-31 |
WO1994016683A1 (en) | 1994-08-04 |
PT683665E (pt) | 2002-05-31 |
JP2001010978A (ja) | 2001-01-16 |
DK0683665T3 (da) | 2002-04-02 |
CA2154913A1 (en) | 1994-08-04 |
ES2165385T3 (es) | 2002-03-16 |
ATE210967T1 (de) | 2002-01-15 |
EP0683665A1 (en) | 1995-11-29 |
AU6165394A (en) | 1994-08-15 |
US5651989A (en) | 1997-07-29 |
JP3145120B2 (ja) | 2001-03-12 |
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