The present invention provides a protein kinase inhibitor (excluding c-Jun N-terminal kinase inhibitor) which comprises, as an active ingredient, an indazole derivative represented by Formula (I)
(wherein R
1
represents substituted or unsubstituted aryl or a substituted or unsubstituted heterocyclic group) or a pharmaceutically acceptable salt thereof.
The present invention provides a protein kinase inhibitor (excluding c-Jun N-terminal kinase inhibitor) which comprises, as an active ingredient, an indazole derivative represented by Formula (I)
(wherein R1 represents substituted or unsubstituted aryl or a substituted or unsubstituted heterocyclic group) or a pharmaceutically acceptable salt thereof.