Merck Announces Findings For Investigational Triple-Combination Chronic Hepatitis C Therapy Showing High Rates Of Sustained Virologic Response In People With Genotypes 1, 2 Or 3 Infection

Merck (NYSE:MRK), known as MSD outside of the United States and Canada, today announced the presentation of results from three Phase 2 clinical trials evaluating MK-3682B (MK-3682/grazoprevir/ruzasvir 1), the company's investigational all-oral, triple-combination regimen for the treatment of chronic hepatitis C (HCV) infection (informally referred to as MK3). Results from Part B of C-CREST 1 & 2 demonstrated high rates of sustained virologic response 2 (SVR) 12 weeks after the completion of therapy (SVR12, considered virologic cure) in patients with chronic HCV genotype (GT) 1 or GT3 infection who received eight weeks of treatment with MK-3682B. Findings from C-CREST 1 & 2 Part B also demonstrated high rates of SVR12 in GT1, GT2 and GT3-infected patients who received MK3 for 12 or 16 weeks. Findings from Part C of C-CREST 1 & 2 and interim results from the ongoing C-SURGE study showed high rates of SVR12 and SVR8, respectively, in chronic HCV patients who had failed prior treatment with investigational or approved direct-acting antiviral regimens. These results will be announced in oral presentations at The Liver Meeting® 2016 today ( C-CREST 1 & 2 Parts B and C) and tomorrow ( C-SURGE).

"Across the chronic hepatitis C treatment landscape, incredible progress has been made in a remarkably short amount of time, but there remains a need for more options, particularly for patients who do not achieve sustained virologic response with treatment regimens available today," said Dr. Eliav Barr, senior vice president, global clinical development, infectious diseases and vaccines, Merck Research Laboratories. "The strong findings observed following treatment with MK-3682B are an encouraging step towards Merck's goal of developing and delivering a shorter-duration, pan-genotypic next-generation treatment regimen for more patients with chronic hepatitis C infection."

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