ATE378342T1 - Terminal verzweigte, polymere linker und diese enthaltende polymere konjugate - Google Patents

Terminal verzweigte, polymere linker und diese enthaltende polymere konjugate

Info

Publication number
ATE378342T1
ATE378342T1 AT02721033T AT02721033T ATE378342T1 AT E378342 T1 ATE378342 T1 AT E378342T1 AT 02721033 T AT02721033 T AT 02721033T AT 02721033 T AT02721033 T AT 02721033T AT E378342 T1 ATE378342 T1 AT E378342T1
Authority
AT
Austria
Prior art keywords
polymeric
containing same
linkers
conjugates containing
terminally branched
Prior art date
Application number
AT02721033T
Other languages
English (en)
Inventor
Yun Choe
Richard Greenwald
Original Assignee
Enzon 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 Enzon Inc filed Critical Enzon Inc
Application granted granted Critical
Publication of ATE378342T1 publication Critical patent/ATE378342T1/de

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Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/32Polymers modified by chemical after-treatment
    • C08G65/329Polymers modified by chemical after-treatment with organic compounds
    • C08G65/333Polymers modified by chemical after-treatment with organic compounds containing nitrogen
    • C08G65/33396Polymers modified by chemical after-treatment with organic compounds containing nitrogen having oxygen in addition to nitrogen
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/50Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
    • A61K47/51Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
    • A61K47/56Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/50Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
    • A61K47/51Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
    • A61K47/56Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule
    • A61K47/59Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes
    • A61K47/60Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00Antineoplastic agents
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P43/00Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/32Polymers modified by chemical after-treatment
    • C08G65/329Polymers modified by chemical after-treatment with organic compounds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/02Applications for biomedical use

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Health & Medical Sciences (AREA)
  • Pharmacology & Pharmacy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Engineering & Computer Science (AREA)
  • Polymers & Plastics (AREA)
  • Epidemiology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medicinal Preparation (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Polyethers (AREA)
  • Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
  • Peptides Or Proteins (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Cosmetics (AREA)
  • Graft Or Block Polymers (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
AT02721033T 2001-02-20 2002-02-19 Terminal verzweigte, polymere linker und diese enthaltende polymere konjugate ATE378342T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27000901P 2001-02-20 2001-02-20

Publications (1)

Publication Number Publication Date
ATE378342T1 true ATE378342T1 (de) 2007-11-15

Family

ID=23029515

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02721033T ATE378342T1 (de) 2001-02-20 2002-02-19 Terminal verzweigte, polymere linker und diese enthaltende polymere konjugate

Country Status (10)

Country Link
US (1) US20020183259A1 (de)
EP (1) EP1362053B1 (de)
JP (1) JP2004532289A (de)
AT (1) ATE378342T1 (de)
AU (1) AU2002251988A1 (de)
CA (1) CA2437989A1 (de)
DE (1) DE60223499T2 (de)
DK (1) DK1362053T3 (de)
MX (1) MXPA03007392A (de)
WO (1) WO2002065988A2 (de)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6624142B2 (en) * 1997-12-30 2003-09-23 Enzon, Inc. Trimethyl lock based tetrapartate prodrugs
SI1436012T1 (en) 2001-10-18 2018-03-30 Nektar Therapeutics Polymer conjugates of opioid antagonists
US7332164B2 (en) * 2003-03-21 2008-02-19 Enzon Pharmaceuticals, Inc. Heterobifunctional polymeric bioconjugates
KR20060015505A (ko) * 2003-04-13 2006-02-17 엔존 파마슈티컬즈, 인코포레이티드 올리고뉴클레오타이드 전구약물
BRPI0411172A (pt) 2003-05-12 2006-07-18 Affymax Inc peptìdeo, dìmero de peptìdeo, seu uso e composição farmacêutica
EA010016B1 (ru) * 2003-05-12 2008-06-30 Афимакс, Инк. Новые модифицированные полиэтиленгликолем соединения и их применение
AP2042A (en) 2003-05-12 2009-09-07 Affymax Inc Novel peptides that bind to the erythropoietin receptor
BRPI0411166A (pt) 2003-05-12 2006-07-18 Affymax Inc composto compreendendo uma parcela de peptìdeo, uma parcela espaçadora e uma parcela de polìmero solúvel em água e composição farmacêutica compreendendo tal composto
PL1694363T3 (pl) * 2003-12-16 2014-07-31 Nektar Therapeutics Monodyspersyjne kompozycje PEGylowanego naloksolu
US20060182692A1 (en) 2003-12-16 2006-08-17 Fishburn C S Chemically modified small molecules
JP4820758B2 (ja) * 2004-09-22 2011-11-24 日本化薬株式会社 新規ブロック共重合体、ミセル調製物及びそれを有効成分とする抗癌剤
JP5000512B2 (ja) * 2005-05-11 2012-08-15 日本化薬株式会社 シチジン系代謝拮抗剤の高分子誘導体
US7550433B2 (en) 2005-06-03 2009-06-23 Affymax, Inc. Erythropoietin receptor peptide formulations and uses
EP2279758B1 (de) 2005-06-16 2015-02-25 Nektar Therapeutics Konjugate mit abbaubarer Verknüpfung und Polymerreagenzien zur Herstellung dieser Konjugate
KR20080106254A (ko) 2006-03-28 2008-12-04 니폰 가야꾸 가부시끼가이샤 탁산류의 고분자 결합체
RU2447095C2 (ru) 2006-05-18 2012-04-10 Ниппон Каяку Кабусики Кайся Высокомолекулярный конъюгат подофиллотоксинов
RU2009105670A (ru) * 2006-07-19 2010-08-27 Ниппон Каяку Кабусики Кайся (Jp) Высокомолекулярный конъюгат комбретастатинов
WO2008034124A2 (en) * 2006-09-15 2008-03-20 Enzon Pharmaceuticals, Inc. Targeted polymeric prodrugs containing multifunctional linkers
US20090239782A1 (en) * 2006-10-03 2009-09-24 Masaharu Nakamura High-molecular weight conjugate of resorcinol derivatives
US8334364B2 (en) 2006-11-06 2012-12-18 Nipon Kayaku Kabushiki Kaisha High-molecular weight derivative of nucleic acid antimetabolite
US8188222B2 (en) 2006-11-08 2012-05-29 Nippon Kayaku Kabushiki Kaisha High molecular weight derivative of nucleic acid antimetabolite
WO2008095004A2 (en) 2007-01-31 2008-08-07 Affymax, Inc. Nitrogen-based linkers for attaching modifying groups to polypeptides and other macromolecules
WO2009041570A1 (ja) 2007-09-28 2009-04-02 Nippon Kayaku Kabushiki Kaisha ステロイド類の高分子結合体
CN101977631A (zh) * 2008-03-18 2011-02-16 日本化药株式会社 生理活性物质的高分子量偶联物
JP5366940B2 (ja) 2008-05-08 2013-12-11 日本化薬株式会社 葉酸若しくは葉酸誘導体の高分子結合体
WO2010131675A1 (ja) 2009-05-15 2010-11-18 日本化薬株式会社 水酸基を有する生理活性物質の高分子結合体
HRP20151420T4 (hr) 2010-09-30 2019-04-05 Astrazeneca Ab Kristalni konjugat naloksol-peg
US9018323B2 (en) 2010-11-17 2015-04-28 Nippon Kayaku Kabushiki Kaisha Polymer derivative of cytidine metabolic antagonist
CA2843503C (en) * 2011-08-12 2020-12-22 Ulrich Hersel Polymeric hyperbranched carrier-linked prodrugs
RU2623426C2 (ru) 2011-09-11 2017-06-26 Ниппон Каяку Кабусики Кайся Способ получения блок-сополимера
KR102619437B1 (ko) 2018-06-29 2023-12-29 상하이 창청이야오커지 컴퍼니 리미티드 젬시타빈의 인-함유 프로드러그

Family Cites Families (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4179337A (en) * 1973-07-20 1979-12-18 Davis Frank F Non-immunogenic polypeptides
IL83966A (en) * 1986-09-26 1992-03-29 Schering Ag Amides of aminopolycarboxylic acids and pharmaceutical compositions containing them
US4943579A (en) * 1987-10-06 1990-07-24 The United States Of America As Represented By The Secretary Of The Department Of Health And Human Services Water soluble prodrugs of camptothecin
JP2958019B2 (ja) * 1988-05-06 1999-10-06 住友製薬株式会社 ポリエチレングリコール誘導体、修飾ペプチドおよびその製造方法
US5112739A (en) * 1988-08-02 1992-05-12 Polaroid Corporation Enzyme controlled release system
US5283339A (en) * 1988-11-23 1994-02-01 California Institute Of Technology Immobilized metal aqueous two-phase extraction and precipitation
US5122614A (en) * 1989-04-19 1992-06-16 Enzon, Inc. Active carbonates of polyalkylene oxides for modification of polypeptides
US6039931A (en) * 1989-06-30 2000-03-21 Schering Aktiengesellschaft Derivatized DTPA complexes, pharmaceutical agents containing these compounds, their use, and processes for their production
EP0510080A4 (en) * 1989-12-26 1992-12-02 Nova Pharmaceutical Corporation Prodrug anhydrides of asprin, indomethacin and ibuprofen, their preparation, compositions, and anti-inflammatory method of use
US5552391A (en) * 1990-01-16 1996-09-03 La Jolla Pharmaceutical Company Chemically-defined non-polymeric valency platform molecules and conjugates thereof
US5130126A (en) * 1990-07-09 1992-07-14 Nippon Oil & Fats Co., Ltd. Polymer-drug conjugate and a method of producing it
JP3051145B2 (ja) * 1990-08-28 2000-06-12 住友製薬株式会社 新規なポリエチレングリコール誘導体修飾ペプチド
FR2676058B1 (fr) * 1991-04-30 1994-02-25 Hoechst Lab Prodrogues glycosylees, leur procede de preparation et leur utilisation dans le traitement des cancers.
US5433886A (en) * 1992-05-07 1995-07-18 Calgon Corporation Stabilization of polyether polyamino methylene phosphonate scale inhibitors against degradation by bromine and chlorine biocides
WO1993024476A1 (en) * 1992-06-04 1993-12-09 Clover Consolidated, Limited Water-soluble polymeric carriers for drug delivery
GB9213077D0 (en) * 1992-06-19 1992-08-05 Erba Carlo Spa Polymerbound taxol derivatives
US5614549A (en) * 1992-08-21 1997-03-25 Enzon, Inc. High molecular weight polymer-based prodrugs
US5382657A (en) * 1992-08-26 1995-01-17 Hoffmann-La Roche Inc. Peg-interferon conjugates
US5756825A (en) * 1992-09-08 1998-05-26 Safavy; Ahmad Hydroxamic acid-based bifunctional chelating compounds
CA2146990A1 (en) * 1992-10-14 1994-04-28 Robert A. Snow Chelating polymers
US5349001A (en) * 1993-01-19 1994-09-20 Enzon, Inc. Cyclic imide thione activated polyalkylene oxides
US5321095A (en) * 1993-02-02 1994-06-14 Enzon, Inc. Azlactone activated polyalkylene oxides
US5547981A (en) * 1993-03-09 1996-08-20 Enzon, Inc. Taxol-7-carbazates
US5454954A (en) * 1993-09-21 1995-10-03 Calgon Corporation Scale control in metal mining circuits using polyether polyamino methylene phosphonates
US5840900A (en) * 1993-10-20 1998-11-24 Enzon, Inc. High molecular weight polymer-based prodrugs
US5622986A (en) * 1993-10-20 1997-04-22 Enzon, Inc. 2'-and/or 7-substituted taxanes
US5965566A (en) * 1993-10-20 1999-10-12 Enzon, Inc. High molecular weight polymer-based prodrugs
US5880131A (en) * 1993-10-20 1999-03-09 Enzon, Inc. High molecular weight polymer-based prodrugs
US5605976A (en) * 1995-05-15 1997-02-25 Enzon, Inc. Method of preparing polyalkylene oxide carboxylic acids
US5919455A (en) * 1993-10-27 1999-07-06 Enzon, Inc. Non-antigenic branched polymer conjugates
US5643575A (en) * 1993-10-27 1997-07-01 Enzon, Inc. Non-antigenic branched polymer conjugates
US5646159A (en) * 1994-07-20 1997-07-08 Research Triangle Institute Water-soluble esters of camptothecin compounds
US5672335A (en) * 1994-11-30 1997-09-30 Schering Aktiengesellschaft Use of metal complexes as liver and gallbladder X-ray diagnostic agents
US5489589A (en) * 1994-12-07 1996-02-06 Bristol-Myers Squibb Company Amino acid derivatives of paclitaxel
GB9501052D0 (en) * 1995-01-19 1995-03-08 Cancer Res Campaign Tech Improvements relating to prodrugs
US5672584A (en) * 1995-04-25 1997-09-30 The University Of Kansas Cyclic prodrugs of peptides and peptide nucleic acids having improved metabolic stability and cell membrane permeability
US5679852A (en) * 1995-06-02 1997-10-21 Schering Aktiengesellschaft Process for the production of DTPA-monoamides of the central carboxylic acid and their use as pharmaceutical agents
ES2227536T3 (es) * 1995-06-27 2005-04-01 Pharmachemie B.V. Nuevos profarmacos de antraciclina, procedimiento de preparacion asi como su uso en quimioterapia selectiva.
US6020373A (en) * 1995-10-20 2000-02-01 Eastern Virginia Medical School Chelate derivatives as protectors against tissue injury
JP2000501414A (ja) * 1995-11-22 2000-02-08 ザ・ジョンズ・ホプキンス・ユニバーシティー 生体分子の細胞取り込みを高めるリガンド
US6011042A (en) * 1997-10-10 2000-01-04 Enzon, Inc. Acyl polymeric derivatives of aromatic hydroxyl-containing compounds
US6135655A (en) * 1997-10-14 2000-10-24 Hewlett-Packard Company Multipixel dots in monochrome drop-on-demand printing
US5965119A (en) * 1997-12-30 1999-10-12 Enzon, Inc. Trialkyl-lock-facilitated polymeric prodrugs of amino-containing bioactive agents
US6153655A (en) * 1998-04-17 2000-11-28 Enzon, Inc. Terminally-branched polymeric linkers and polymeric conjugates containing the same

Also Published As

Publication number Publication date
JP2004532289A (ja) 2004-10-21
CA2437989A1 (en) 2002-08-29
EP1362053B1 (de) 2007-11-14
DK1362053T3 (da) 2008-03-10
EP1362053A2 (de) 2003-11-19
MXPA03007392A (es) 2003-12-04
DE60223499T2 (de) 2008-10-16
US20020183259A1 (en) 2002-12-05
WO2002065988A2 (en) 2002-08-29
EP1362053A4 (de) 2005-01-19
DE60223499D1 (de) 2007-12-27
WO2002065988A3 (en) 2003-04-10
AU2002251988A1 (en) 2002-09-04

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