Leramistat (HMC-C-01-A; MBS2320) is a mitochondrial complex 1 inhibitor, involving in cell metabolism immune metabolism regulation. Leramistat also inhibits ATP production in Thp1 human monocytes (IC 50 : 0.63 μM). Leramistat inhibits atopic dermatitis and other skin diseases autoimmune diseases, inflammatory diseases, cancer ; and also inhibits osteoclast mediated disease.