alexa Discovery and development of simeprevir (TMC435), a HCV NS3 4A protease inhibitor.
Medicine

Medicine

General Medicine: Open Access

Author(s): Rosenquist , Samuelsson B, Johansson PO, Cummings MD, Lenz O,

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Abstract Hepatitis C virus is a blood-borne infection and the leading cause of chronic liver disease (including cirrhosis and cancer) and liver transplantation. Since the identification of HCV in 1989, there has been an extensive effort to identify and improve treatment options. An important milestone was reached in 2011 with the approval of the first-generation HCV NS3/4A protease inhibitors. However, new therapies are needed to improve cure rates, shorten treatment duration, and improve tolerability. Here we summarize the extensive medicinal chemistry effort to develop novel P2 cyclopentane macrocyclic inhibitors guided by HCV NS3 protease assays, the cellular replicon system, structure-based design, and a panel of DMPK assays. The selection of compound 29 (simeprevir, TMC435) as clinical candidate was based on its excellent biological, PK, and safety pharmacology profile. Compound 29 has recently been approved for treatment of chronic HCV infection in combination with pegylated interferon-α and ribavirin in Japan, Canada, and USA. This article was published in J Med Chem and referenced in General Medicine: Open Access

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