Boceprevir
Boceprevir (INN, trade name Victrelis) is a protease inhibitor used to treat hepatitis caused by hepatitis C virus (HCV) genotype 1. It binds to the HCV nonstructural protein 3 active site. It was initially developed by Schering-Plough, then by Merck after it acquired Schering in 2009. It was approved by the FDA in May 2011. In January 2015, Merck announced that they would be voluntarily withdrawing Victrelis from the market due to the overwhelming superiority of newer direct-acting antiviral agents, such as ledipasvir/sofosbuvir. Clinical trials SPRINT-1 trial The SPRINT-1 trial was a phase-II trial of boceprevir in difficult-to-treat patients with HCV genotype 1. Study results were announced at the 44th annual meeting of the European Association for the Study of the Liver in Copenhagen in April, 2009. When used in combination with peginterferon alfa-2b and ribavirin, boceprevir resulted in significantly higher sustained viral response (SVR) rates in the most difficult- ...
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