Methods and compositions for treating tumor diseases

A - Human Necessities – 61 – K

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A61K 39/395 (2006.01) A61P 35/00 (2006.01)

Patent

CA 2679548

The present invention provides, in part, methods for treating a tumor in a human subject comprising inhibiting IGF-1 receptor signaling, methods of determining whether a tumor is more or less likely to respond to such treatment, and compositions for practicing such methods. In particular embodiments, the invention provides fully human, humanized, or chimeric anti-IGF-1R antibodies that bind human IGF-1R, IGF-1R-binding fragments and derivatives of such antibodies, and IGF-1R-binding polypeptides comprising such fragments. Other embodiments provide nucleic acids encoding such antibodies, antibody fragments and derivatives and polypeptides, cells comprising such polynucleotides, methods of making such antibodies, antibody fragments and derivatives and polypeptides, and methods of using such antibodies, antibody fragments and derivatives and polypeptides, including methods of treating or diagnosing subjects having IGF-1R-related disorders or conditions.

La présente invention concerne, d'une part, des procédés de traitement d'une tumeur chez un sujet humain, comprenant l'inhibition de la signalisation du récepteur IGF-1. L'invention concerne d'autre part des procédés permettant de déterminer si une tumeur est plus ou moins susceptible de réagir à un tel traitement, ainsi que des compositions permettant de mettre en pratique de tels procédés. Dans des modes de réalisation particuliers, l'invention concerne des anticorps anti-IGF-1R entièrement humains, humanisés ou chimériques qui se lient à l'IGF-1R humain, des dérivés et des fragments de liaison IGF-1R de ces anticorps, et des polypeptides de liaison IGF-1R comprenant de tels fragments. D'autres modes de réalisation concernent des acides nucléiques codant pour ces anticorps, dérivés et fragments d'anticorps, et polypeptides, ainsi que des cellules comprenant de tels polynucléotides ; ces modes de réalisation portent également sur des procédés de production de tels anticorps, fragments et dérivés d'anticorps, et polypeptides ; enfin, ces modes de réalisation concernent des procédés d'utilisation de ces anticorps, dérivés et fragments d'anticorps, et polypeptides, incluant des procédés de traitement ou de diagnostic de sujets présentant des états ou des troubles liés à IGF-1R.

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