HUE063021T2 - Mesterségesen elõállított transzferrin receptor-kötõ polipeptidek - Google Patents

Mesterségesen elõállított transzferrin receptor-kötõ polipeptidek

Info

Publication number
HUE063021T2
HUE063021T2 HUE18756531A HUE18756531A HUE063021T2 HU E063021 T2 HUE063021 T2 HU E063021T2 HU E18756531 A HUE18756531 A HU E18756531A HU E18756531 A HUE18756531 A HU E18756531A HU E063021 T2 HUE063021 T2 HU E063021T2
Authority
HU
Hungary
Prior art keywords
transferrin receptor
binding polypeptides
artificially produced
produced transferrin
artificially
Prior art date
Application number
HUE18756531A
Other languages
English (en)
Hungarian (hu)
Inventor
Xiaocheng Chen
Original Assignee
Denali Therapeutics 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
Priority claimed from PCT/US2018/018371 external-priority patent/WO2018152326A1/en
Application filed by Denali Therapeutics Inc filed Critical Denali Therapeutics Inc
Publication of HUE063021T2 publication Critical patent/HUE063021T2/hu

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K14/00Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • C07K14/435Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
    • C07K14/79Transferrins, e.g. lactoferrins, ovotransferrins
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K38/00Medicinal preparations containing peptides
    • A61K38/16Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • A61K38/17Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
    • A61K38/40Transferrins, e.g. lactoferrins, ovotransferrins
    • 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
    • A61K47/62Medicinal 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 a protein, peptide or polyamino acid
    • A61K47/64Drug-peptide, drug-protein or drug-polyamino acid conjugates, i.e. the modifying agent being a peptide, protein or polyamino acid which is covalently bonded or complexed to a therapeutically active agent
    • A61K47/644Transferrin, e.g. a lactoferrin or ovotransferrin
    • 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
    • A61K47/68Medicinal 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 antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment
    • A61K47/6801Drug-antibody or immunoglobulin conjugates defined by the pharmacologically or therapeutically active agent
    • A61K47/6803Drugs conjugated to an antibody or immunoglobulin, e.g. cisplatin-antibody conjugates
    • A61K47/6811Drugs conjugated to an antibody or immunoglobulin, e.g. cisplatin-antibody conjugates the drug being a protein or peptide, e.g. transferrin or bleomycin
    • 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
    • A61K47/68Medicinal 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 antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment
    • A61K47/6835Medicinal 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 antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment the modifying agent being an antibody or an immunoglobulin bearing at least one antigen-binding site
    • A61K47/6849Medicinal 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 antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment the modifying agent being an antibody or an immunoglobulin bearing at least one antigen-binding site the antibody targeting a receptor, a cell surface antigen or a cell surface determinant
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00Drugs for disorders of the nervous system
    • A61P25/28Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K14/00Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • C07K14/435Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
    • C07K14/705Receptors; Cell surface antigens; Cell surface determinants
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K16/00Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K16/00Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
    • C07K16/18Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans
    • C07K16/28Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
    • C07K16/2881Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants against CD71
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K16/00Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
    • C07K16/40Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against enzymes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K38/00Medicinal preparations containing peptides
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K2317/00Immunoglobulins specific features
    • C07K2317/50Immunoglobulins specific features characterized by immunoglobulin fragments
    • C07K2317/52Constant or Fc region; Isotype
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K2317/00Immunoglobulins specific features
    • C07K2317/50Immunoglobulins specific features characterized by immunoglobulin fragments
    • C07K2317/52Constant or Fc region; Isotype
    • C07K2317/526CH3 domain
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K2317/00Immunoglobulins specific features
    • C07K2317/50Immunoglobulins specific features characterized by immunoglobulin fragments
    • C07K2317/55Fab or Fab'
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K2317/00Immunoglobulins specific features
    • C07K2317/70Immunoglobulins specific features characterized by effect upon binding to a cell or to an antigen
    • C07K2317/77Internalization into the cell
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K2317/00Immunoglobulins specific features
    • C07K2317/90Immunoglobulins specific features characterized by (pharmaco)kinetic aspects or by stability of the immunoglobulin
    • C07K2317/94Stability, e.g. half-life, pH, temperature or enzyme-resistance
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K2318/00Antibody mimetics or scaffolds
    • C07K2318/20Antigen-binding scaffold molecules wherein the scaffold is not an immunoglobulin variable region or antibody mimetics

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Immunology (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Biochemistry (AREA)
  • Genetics & Genomics (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Zoology (AREA)
  • Toxicology (AREA)
  • Neurology (AREA)
  • Neurosurgery (AREA)
  • Biomedical Technology (AREA)
  • Cell Biology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Psychiatry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Hospice & Palliative Care (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Peptides Or Proteins (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Medicinal Preparation (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
HUE18756531A 2017-08-10 2018-08-10 Mesterségesen elõállított transzferrin receptor-kötõ polipeptidek HUE063021T2 (hu)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201762543658P 2017-08-10 2017-08-10
US201762583314P 2017-11-08 2017-11-08
PCT/US2018/018371 WO2018152326A1 (en) 2017-02-17 2018-02-15 Engineered transferrin receptor binding polypeptides

Publications (1)

Publication Number Publication Date
HUE063021T2 true HUE063021T2 (hu) 2023-12-28

Family

ID=65272509

Family Applications (1)

Application Number Title Priority Date Filing Date
HUE18756531A HUE063021T2 (hu) 2017-08-10 2018-08-10 Mesterségesen elõállított transzferrin receptor-kötõ polipeptidek

Country Status (19)

Country Link
US (4) US20200369746A1 (enExample)
EP (2) EP3665194A4 (enExample)
JP (4) JP2020530465A (enExample)
CN (2) CN111094336A (enExample)
CA (2) CA3072051A1 (enExample)
DK (1) DK3665192T5 (enExample)
ES (1) ES2956062T3 (enExample)
FI (1) FI3665192T3 (enExample)
HR (1) HRP20231118T1 (enExample)
HU (1) HUE063021T2 (enExample)
LT (1) LT3665192T (enExample)
MD (1) MD3665192T2 (enExample)
PL (1) PL3665192T3 (enExample)
PT (1) PT3665192T (enExample)
RS (1) RS64584B1 (enExample)
SI (1) SI3665192T1 (enExample)
SM (1) SMT202300347T1 (enExample)
TW (1) TWI821197B (enExample)
WO (2) WO2019032955A1 (enExample)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PT3583120T (pt) 2017-02-17 2022-12-15 Denali Therapeutics Inc Polipeptídeos de ligação ao recetor de transferrina manipulados
BR112020005271A2 (pt) 2017-10-02 2020-09-15 Denali Therapeutics Inc. proteína, polipeptídeo, polinucleotídeo, vetor, célula hospedeira, método para produção de um polipeptídeo, métodos de tratamento de um distúrbio, de diminuição do acúmulo, de monitoramento, de transporte de um agente e de tratamento de um lsd e composição farmacêutica
JP2021534220A (ja) * 2018-08-22 2021-12-09 デナリ セラピューティクス インコーポレイテッドDenali Therapeutics Inc. 抗her2ポリペプチド及びそれらの使用の方法
AU2020226754A1 (en) 2019-02-20 2021-09-16 Denali Therapeutics Inc. Anti-TREM2 antibodies and methods of use thereof
IL293994A (en) 2019-12-23 2022-08-01 Denali Therapeutics Inc Progranulin variants, compositions comprising same and uses thereof
CN115279790A (zh) * 2020-01-13 2022-11-01 戴纳立制药公司 抗trem2抗体和其使用方法
CA3170338A1 (en) * 2020-02-19 2021-08-26 Denali Therapeutics Inc. Engineered anti-her2 bispecific proteins
PE20231931A1 (es) 2020-10-14 2023-12-01 Denali Therapeutics Inc Proteinas de fusion que comprenden enzimas sulfoglucosamina sulfohidrolasa y metodos de estas
US11827702B2 (en) 2021-09-01 2023-11-28 Biogen Ma Inc. Anti-transferrin receptor antibodies and uses thereof
CA3242212A1 (en) * 2021-12-31 2023-07-06 Imnewrun Inc Blood-brain barrier permeable fusion protein and uses thereof
KR20250048010A (ko) 2022-07-29 2025-04-07 리제너론 파마슈티칼스 인코포레이티드 변형된 트랜스페린 수용체 좌위를 포함하는 비-인간 동물
JP2025528052A (ja) 2022-07-29 2025-08-26 リジェネロン・ファーマシューティカルズ・インコーポレイテッド 脳及び筋肉へのトランスフェリン受容体(tfr)媒介送達のための組成物及び方法
CN120865438A (zh) 2022-07-29 2025-10-31 瑞泽恩制药公司 重新靶向转铁蛋白受体1的病毒颗粒
US20240052051A1 (en) 2022-07-29 2024-02-15 Regeneron Pharmaceuticals, Inc. Anti-tfr:payload fusions and methods of use thereof
WO2024130116A2 (en) * 2022-12-16 2024-06-20 Denali Therapeutics Inc. Methods and compositions related to engineered transferrin receptor‑binding molecules
US20250049896A1 (en) 2023-07-28 2025-02-13 Regeneron Pharmaceuticals, Inc. Anti-tfr:acid sphingomyelinase for treatment of acid sphingomyelinase deficiency
WO2025029657A2 (en) 2023-07-28 2025-02-06 Regeneron Pharmaceuticals, Inc. Anti-tfr:gaa and anti-cd63:gaa insertion for treatment of pompe disease
WO2025137213A1 (en) 2023-12-20 2025-06-26 Denali Therapeutics Inc. Fusion proteins comprising acid alpha-glucosidase enzymes and methods thereof

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1212365A2 (en) * 1999-08-30 2002-06-12 New York University School Of Medicine Crystal structures of domains of receptor protein tyrosine kinases and their ligands
CN101516907B (zh) * 2006-08-01 2015-08-26 皮里斯股份公司 泪液脂质运载蛋白的突变蛋白及其获得方法
EA034333B1 (ru) * 2010-11-30 2020-01-29 Дженентек, Инк. Варианты антитела для переноса соединения через гематоэнцефалический барьер
EA201892619A1 (ru) * 2011-04-29 2019-04-30 Роше Гликарт Аг Иммуноконъюгаты, содержащие мутантные полипептиды интерлейкина-2
CA2879496C (en) * 2012-08-29 2024-01-09 F. Hoffmann-La Roche Ag Blood brain barrier shuttle
EP4324480A3 (en) * 2013-05-20 2024-05-08 F. Hoffmann-La Roche AG Anti-transferrin receptor antibodies and methods of use
BR112016015589A2 (pt) * 2014-01-06 2017-10-31 Hoffmann La Roche módulos de trânsito monovalentes para a barreira hematoencefálica
CN113621050A (zh) * 2014-05-22 2021-11-09 皮里斯制药有限公司 新型特异性结合多肽及其用途
CA2967830A1 (en) * 2014-11-14 2016-05-19 Ossianix, Inc. Tfr selective binding compounds and related methods
EP3221362B1 (en) * 2014-11-19 2019-07-24 F.Hoffmann-La Roche Ag Anti-transferrin receptor antibodies and methods of use
EP3221361B1 (en) * 2014-11-19 2021-04-21 Genentech, Inc. Anti-transferrin receptor / anti-bace1 multispecific antibodies and methods of use
IL302486A (en) * 2015-06-24 2023-06-01 Hoffmann La Roche Antibodies against the transnephrine receptor with adapted affinity
AR106189A1 (es) * 2015-10-02 2017-12-20 Hoffmann La Roche ANTICUERPOS BIESPECÍFICOS CONTRA EL A-b HUMANO Y EL RECEPTOR DE TRANSFERRINA HUMANO Y MÉTODOS DE USO
US10457717B2 (en) * 2017-02-17 2019-10-29 Denali Therapeutics Inc. Engineered polypeptides

Also Published As

Publication number Publication date
CN111148757A (zh) 2020-05-12
TWI821197B (zh) 2023-11-11
EP3665194A4 (en) 2021-07-07
JP2020530465A (ja) 2020-10-22
WO2019032955A1 (en) 2019-02-14
TW201920278A (zh) 2019-06-01
US20200369746A1 (en) 2020-11-26
JP7280241B2 (ja) 2023-05-23
JP2020530293A (ja) 2020-10-22
JP2025120209A (ja) 2025-08-15
SMT202300347T1 (it) 2023-11-13
PL3665192T3 (pl) 2023-11-27
LT3665192T (lt) 2023-10-25
MD3665192T2 (ro) 2023-12-31
RS64584B1 (sr) 2023-10-31
EP3665192A1 (en) 2020-06-17
JP2023123757A (ja) 2023-09-05
EP3665194A1 (en) 2020-06-17
ES2956062T3 (es) 2023-12-12
FI3665192T3 (fi) 2023-09-28
US20240024432A1 (en) 2024-01-25
DK3665192T3 (da) 2023-10-09
EP3665192B1 (en) 2023-07-12
WO2019033046A1 (en) 2019-02-14
CA3072051A1 (en) 2019-02-14
CN111094336A (zh) 2020-05-01
DK3665192T5 (da) 2024-08-26
US20200289627A1 (en) 2020-09-17
SI3665192T1 (sl) 2023-11-30
CA3072035A1 (en) 2019-02-14
HRP20231118T1 (hr) 2023-12-22
PT3665192T (pt) 2023-09-25
US20230381286A1 (en) 2023-11-30
CN111148757B (zh) 2024-06-21

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