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1. US20180078654 - Conjugates for the treatment of cancer targeted at intracellular tumor-associated antigens

Office United States of America
Application Number 15558906
Application Date 18.03.2016
Publication Number 20180078654
Publication Date 22.03.2018
Grant Number 10780179
Grant Date 22.09.2020
Publication Kind B2
IPC
A61K 39/00
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
39Medicinal preparations containing antigens or antibodies
C07K 16/30
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
16Immunoglobulins, e.g. monoclonal or polyclonal antibodies
18against material from animals or humans
28against receptors, cell surface antigens or cell surface determinants
30from tumour cells
A61K 47/68
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
47Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
50the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
51the non-active ingredient being a modifying agent
68the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment
C07K 16/40
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
16Immunoglobulins, e.g. monoclonal or polyclonal antibodies
40against enzymes
G01N 33/574
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
48Biological material, e.g. blood, urine; Haemocytometers
50Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
53Immunoassay; Biospecific binding assay; Materials therefor
574for cancer
C07K 16/28
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
16Immunoglobulins, e.g. monoclonal or polyclonal antibodies
18against material from animals or humans
28against receptors, cell surface antigens or cell surface determinants
CPC
A61K 47/6849
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
47Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
50the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
51the non-active ingredient being a modifying agent
68the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment
6835the modifying agent being an antibody or an immunoglobulin bearing at least one antigen-binding site
6849the antibody targeting a receptor, a cell surface antigen or a cell surface determinant
A61K 47/6803
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
47Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
50the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
51the non-active ingredient being a modifying agent
68the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment
6801Drug-antibody or immunoglobulin conjugates defined by the pharmacologically or therapeutically active agent
6803Drugs conjugated to an antibody or immunoglobulin, e.g. cisplatin-antibody conjugates
A61K 47/6851
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
47Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
50the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
51the non-active ingredient being a modifying agent
68the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment
6835the modifying agent being an antibody or an immunoglobulin bearing at least one antigen-binding site
6851the antibody targeting a determinant of a tumour cell
A61K 47/6871
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
47Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
50the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
51the non-active ingredient being a modifying agent
68the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment
6835the modifying agent being an antibody or an immunoglobulin bearing at least one antigen-binding site
6871the antibody targeting an enzyme
C07K 16/2863
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
16Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
18against material from animals or humans
28against receptors, cell surface antigens or cell surface determinants
2863against receptors for growth factors, growth regulators
C07K 16/30
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
16Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
18against material from animals or humans
28against receptors, cell surface antigens or cell surface determinants
30from tumour cells
Applicants IMMUNOBIOCHEM CORPORATION
Inventors Anton Neschadim
Agents Bereskin & Parr LLP
Carmela De Luca
Title
(EN) Conjugates for the treatment of cancer targeted at intracellular tumor-associated antigens
Abstract
(EN)

The present disclosure relates to conjugates, preferably, antibody-drug conjugates, directed against select non-transmembrane tumor antigens that are normally intracellular but can be secreted from cancer cells, such as human cathepsin D, and can be targeted in a way that enables the selective delivery of the conjugate to cancer cells. The design and mechanism of action disclosed enable the preferential delivery of the conjugate prodrug to cancer cells over normal cells for the purpose of selectively killing cancer cells. The uses of such conjugates for the treatment of cancer are described.