Diagnostics method for identifying candidate patients for...

C - Chemistry – Metallurgy – 12 – Q

Patent

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C12Q 1/68 (2006.01)

Patent

CA 2599445

The present invention provides methods for identifying cancer patients susceptible to effective treatment with trastuzumab and other medications that function similarly to trastuzumab. The invention is based on the discovery that certain chromosomal abnormalities can be used to selectively identify cancer patients that are likely to be successfully treated with medication that inhibits the signaling capability of the HER-2 receptor protein or otherwise function similarly to trastuzumab. The invention is based on the use of nucleic acid technology where nucleic acid probes are allowed to hybridize to cell samples and the number of copies of particular genetic regions quantified. The present invention also provides kits and sets of probes for use in identifying cancer patients susceptible to effective treatment with trastuzumab and other medications that function similarly to trastuzumab.

La présente invention a pour objet des procédés permettant d~identifier des patients cancéreux susceptibles d~être traités efficacement au trastuzumab et à d~autres médicaments fonctionnant de manière similaire au trastuzumab. Elle se base sur la découverte que certaines irrégularités chromosomiques peuvent servir à identifier de manière sélective les patients cancéreux susceptibles d~être traités efficacement avec une substance inhibant la faculté de signaler de la protéine récepteur HER-2 ou toute autre fonction de manière similaire au trastuzumab. Elle repose sur l~emploi de la technologie des acides nucléiques dans laquelle des échantillons d~acide nucléique sont laissés hybrider des échantillons cellulaires et le nombre de copies de régions génétiques particulières est quantifié. La présente invention a pour objet des kits et des jeux d~échantillons pour l~identification des patients cancéreux susceptibles d~être traités efficacement au trastuzumab et à d~autres médicaments fonctionnant de manière similaire au trastuzumab.

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