Biomarkers and methods for determining sensitivity to...

G - Physics – 01 – N

Patent

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G01N 33/48 (2006.01) G01N 33/50 (2006.01)

Patent

CA 2620195

EGFR biomarkers useful in a method for predicting the likelihood that a mammal that will respond therapeutically to a method of treating cancer comprising administering an EGFR modulator, wherein the method comprises (a) measuring in the mammal the level of at least one biomarker selected from epiregulin and amphiregulin, (b) exposing a biological sample from the mammal to the EGFR modulator, and (c) following the exposing of step (b), measuring in the biological sample the level of the at least one biomarker, wherein an increase in the level of the at least one biomarker measured in step (c) compared to the level of the at least one biomarker measured in step (a) indicates an increased likelihood that the mammal will respond therapeutically to the method of treating cancer.

L'invention concerne des marqueurs biologiques du récepteur EGFR utilisés dans une méthode permettant de prédire la vraisemblance de la réponse thérapeutique d'un mammifère à un traitement anticancéreux comprenant l'administration d'un modulateur du récepteur EGFR. Cette méthode consiste à: (a) mesurer chez le mammifère le taux d'au moins un marqueur biologique choisi entre l'épiréguline et l'amphiréguline, (b) exposer un échantillon biologique prélevé sur le mammifère au modulateur du récepteur EGFR, et (c) après l'exposition de l'étape (b), mesurer le taux d'au moins un marqueur biologique dans l'échantillon biologique. Une augmentation du taux du ou des marqueurs biologiques mesuré à l'étape (c) par rapport au taux du ou des marqueurs biologiques mesuré à l'étape (a) indique une vraisemblance accrue d'une réponse thérapeutique du mammifère à ce traitement anticancéreux.

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