Amatoxin-armed target-binding moieties for the treatment of...

A - Human Necessities – 61 – K

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A61K 47/48 (2006.01) A61P 35/00 (2006.01) C07K 16/28 (2006.01)

Patent

CA 2756246

The invention relates to tumour therapy, In one aspect, the present invention relates to conjugates of target-binding moieties and toxins that are useful in the treatment of cancer. In particular, the toxin is an amatoxin, and the target-binding moieties (e.g. antibodies) are directed against tumour-associated antigens, such as epithelial cell adhesion molecule (EpCAM). In a further aspect the invention relates to pharmaceutical compositions comprising such target-binding moiety toxin conjugates and to the use of such target-binding moiety toxin conjugates for the preparation of such pharmaceutical compositions. The target-binding moiety toxin conjugates and pharmaceutical compositions of the invention are useful for the treatment of cancer, in particular adenocarcinoma, such as pancreatic cancer, cholangiocarcinoma, breast cancer, and colorectal cancer.

La présente invention concerne la thérapie des tumeurs. Selon un aspect, la présente invention concerne des conjugués de fractions de liaison à une cible et des toxines qui sont utiles dans le traitement du cancer. En particulier, la toxine est une amatoxine, et les fractions de liaison à une cible (par exemple, des anticorps) sont dirigées contre des antigènes associés aux tumeurs, tels que la molécule d'adhésion des cellules épithéliales (EpCAM). Selon un autre aspect, l'invention concerne des compositions pharmaceutiques comportant de tels conjugués toxine/fractions de liaison à une cible et l'utilisation de tels conjugués toxine/fractions de liaison à une cible pour la préparation de telles compositions pharmaceutiques. Les conjugués toxine/fractions de liaison à une cible et les compositions pharmaceutiques selon l'invention sont utiles pour le traitement du cancer, notamment l'adénocarcinome, tel que le cancer du pancréas, le cholangiocarcinome, le cancer du sein, et le cancer colorectal.

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