PRISM Pharma Co., Ltd. operates as a pharmaceutical company that focuses on discovery and development of small molecules to modulate protein-protein interactions. It utilizes protein secondary structure mimetic library, which modulates intracellular protein and protein interactions. The firm develops an anti-cancer drug CP/Catenin inhibitor PRI-724 that acts on both cancer cells and cancer stem cells that can switch from proliferation to differentiation. The company was founded by Hiroyuki Kouji on November 2, 2006 and is headquartered in Fujisawa, Japan.