THERAPEUTIC EFFECT PREDICTION METHOD FOR COLORECTAL CANCER PATIENT IN WHOM EXPRESSION OF TK1 PROTEIN HAS INCREASED

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United States of America Patent

APP PUB NO 20160082032A1
SERIAL NO

14891395

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention provides a method for predicting the therapeutic effect of chemotherapy using an antitumor agent containing trifluridine and tipiracil hydrochloride at a molar ratio of 1:0.5 on a colorectal cancer patient, the method comprising the following steps (1) to (3). As the means for solving the problem, the following invention is provided: a method comprising (1) detecting the expression of TK1 protein by an immunohistochemical method in tumor cells contained in a biological sample obtained from the patient; (2) based on the detection results obtained in step (1), classifying the tumor cells into positive cells and negative cells, and calculating the percentage of positive cells in the tumor cells; and (3) based on the calculation results obtained in step (2), predicting that when the percentage is 30% or more, the patient is likely to sufficiently respond to chemotherapy using the antitumor agent containing trifluridine and tipiracil hydrochloride at a molar ratio of 1:0.5.

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Patent Owner(s)

Patent OwnerAddress
TAIHO PHARMACEUTICAL CO LTDCHIYODA-KU TOKYO 101-8444

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
ITO, Masanobu Tokyo, JP 21 261
SAKAMOTO, Kazuki Tsukuba-shi, Ibaraki, JP 40 78

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