ATX inhibitor 15 (compound 30), a indole-based carbamate derivative, is a potent autotaxin (ATX) inhibitor with an IC50 of 2.17 nM. ATX inhibitor 15 inhibits in vivo ATX and the gene expression of pro-fibrotic factors. ATX inhibitor 15 has lung protection effects in Bleomycin challenged mice lung fibrosis model[1].