| abstract |
The present invention provides a type I insulin-like growth factor receptor (IGF-1R) inhibitor comprising, as an active ingredient, an indazole derivative represented by Formula (I): n n{wherein R 1 represents —NR 4 R 5 [wherein R 4 represents a hydrogen atom or the like, R 5 represents substituted or unsubstituted lower alkyl, —C(═O)R 6 (wherein R 6 represents substituted or unsubstituted lower alkyl, substituted or unsubstituted aryl or the like), or the like], or the like, and R 2 and R 3 may be the same or different and each represents a hydrogen atom, hydroxy, substituted or unsubstituted lower alkoxy, or the like} or a pharmaceutically acceptable salt thereof, and the like. |