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1. EP3271401 - CONJUGATES FOR THE TREATMENT OF CANCER TARGETED AT INTRACELLULAR TUMOR-ASSOCIATED ANTIGENS

Office European Patent Office
Application Number 16764101
Application Date 18.03.2016
Publication Number 3271401
Publication Date 24.01.2018
Publication Kind A4
IPC
C07K 16/40
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
16Immunoglobulins, e.g. monoclonal or polyclonal antibodies
40against enzymes
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
A61P 35/00
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
35Antineoplastic agents
C07K 14/705
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
14Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
435from animals; from humans
705Receptors; Cell surface antigens; Cell surface determinants
C12N 15/115
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
15Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
09Recombinant DNA-technology
11DNA or RNA fragments; Modified forms thereof
115Aptamers, i.e. nucleic acids binding a target molecule specifically and with high affinity without hybridising therewith
G01N 33/48
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
CPC
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 47/6849
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 47/6851
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 2039/812
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
39Medicinal preparations containing antigens or antibodies
80Vaccine for a specifically defined cancer
812Breast
A61K 2039/884
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
39Medicinal preparations containing antigens or antibodies
80Vaccine for a specifically defined cancer
884prostate
A61P 35/00
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
35Antineoplastic agents
Applicants IMMUNOBIOCHEM CORP
Inventors NESCHADIM ANTON
Designated States
Priority Data 201562134634 18.03.2015 US
Title
(DE) GEGEN INTRAZELLULÄRE TUMORASSOZIIERTE ANTIGENE GERICHTET KONJUGATE ZUR BEHANDLUNG VON KREBS
(EN) CONJUGATES FOR THE TREATMENT OF CANCER TARGETED AT INTRACELLULAR TUMOR-ASSOCIATED ANTIGENS
(FR) CONJUGUÉS POUR LE TRAITEMENT DU CANCER CIBLANT LES ANTIGÈNES ASSOCIÉS AUX TUMEURS INTRACELLULAIRES
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.

(FR)
La présente invention concerne des conjugués, de préférence, des conjugués anticorps-médicament, dirigés contre des antigènes tumoraux non transmembranaires sélectionnés qui sont normalement intracellulaires mais peuvent être sécrétés par des cellules cancéreuses, telles que la cathepsine D humaine, et peuvent être ciblés d'une manière qui permet l'administration sélective du conjugué aux cellules cancéreuses. La conception et le mécanisme d'action décrits permettent l'administration préférentielle du conjugué de promédicament aux cellules cancéreuses par rapport aux cellules normales à des fins de destruction sélective des cellules cancéreuses. La présente invention concerne en outre les utilisations de ces conjugués pour le traitement du cancer.