abstract |
The problem to be solved by the present invention is to provide an anticancer agent for treating a tumor that has become resistant to another antitumor agent that inhibits FGFR, and a method for treating such a tumor. The present invention relates to an antitumor agent for administration to a tumor patient having resistance to an FGFR inhibitor, and an anticancer agent thereof, comprising a 3,5-disubstituted benzenealkynyl compound represented by the following general formula (I) or a salt thereof: The treatment method used is provided. |