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Obeticholic acid
Obeticholic acid (abbreviated to OCA), is a semi-synthetic bile acid analogue which has the chemical structure 6α-ethyl-chenodeoxycholic acid. It has also been known as INT-747. It is undergoing development as a pharmaceutical agent for several liver diseases and related disorders. Intercept Pharmaceuticals Inc. (NASDAQ symbol ICPT) hold the worldwide rights to develop OCA outside of Japan and China, where it is licensed to Dainippon Sumitomo Pharma.〔(【引用サイトリンク】title=A $4 Billion Surprise for 45-Person Biotech )〕
==Invention and development==
The natural bile acid, chenodeoxycholic acid, was identified in 1999 as the most active physiological ligand for the farnesoid X receptor (FXR), which is involved in many physiological and pathological processes. A series of alkylated bile acid analogues were designed, studied and patented by Roberto Pellicciari and colleagues at the University of Perugia, with 6α-ethyl-chenodeoxycholic acid emerging as the most highly potent FXR agonist. FXR-dependent processes in liver and intestine were proposed as therapeutic targets in human diseases. Obeticholic acid is the first FXR agonist to be used in human drug studies.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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