Cytotoxic agents

A - Human Necessities – 61 – K

Patent

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Details

A61K 47/48 (2006.01) A61P 35/00 (2006.01) A61K 31/337 (2006.01) A61K 31/404 (2006.01) A61K 31/535 (2006.01) A61K 31/704 (2006.01)

Patent

CA 2462085

Cytotoxic agents bearing a polyethylene glycol (PEG) linking group having a terminal active ester, cytotoxic conjugates comprising one or more cytotoxic agents linked to a cell-binding agent via PEG linking groups, and methods for producing both are disclosed. A therapeutic composition comprising a therapeutically-effective amount of one of the cytotoxic conjugates of the present invention, and a method of killing selected cell populations comprising contacting target cells, or tissue containing target cells, with an effective amount of one of the cytotoxic conjugates, are also disclosed.

L'invention concerne des agents cytotoxiques contenant un groupe de liaison de polyéthylèneglycol (PEG) présentant un ester actif terminal, des conjugués cytotoxiques comprenant un ou plusieurs agents cytotoxiques liés à un agent de liaison de cellules, par l'intermédiaire de groupe de liaison de PEG, ainsi que des procédés de production de ces derniers. L'invention concerne également une composition thérapeutique comprenant une quantité efficace d'un point de vue thérapeutique d'un des conjugués cytotoxiques de la présente invention, et un procédé de suppression de populations sélectionnées de cellules comprenant la mise en contact de cellules cibles, ou de tissus contenant des cellules cibles, avec une quantité efficace d'un des conjugués cytotoxiques.

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