“Merck's submission is based on evidence from our wide-ranging clinical program assessing the efficacy and tolerability profile of grazoprevir/elbasvir in populations with chronic hepatitis C,” said Dr. Roy Baynes, senior vice president of clinical development, Merck Research Laboratories. “This submission to the U.S. FDA is an important milestone as we seek to provide patients with a new treatment option for this serious infection.”
The FDA has previously granted Breakthrough Therapy designation status for grazoprevir/elbasvir for the treatment of patients infected with chronic HCV GT1 with end stage renal disease on hemodialysis, and for patients infected with chronic HCV GT4. Breakthrough Therapy designation is intended to expedite the development and review of a candidate that is planned for use, alone or in combination, to treat a serious or life-threatening disease or condition when preliminary clinical evidence indicates that the drug may demonstrate substantial improvement over existing therapies on one or more clinically significant endpoints.
The New Drug Application for grazoprevir/elbasvir (100mg/50mg) is based in part upon data from the pivotal C-EDGE clinical trials program, as well as the C-SURFER and C-SALVAGE trials, evaluating grazoprevir/elbasvir (100mg/50mg), with or without ribavirin, in patients with chronic hepatitis C infection. Data from these trials were presented at The International Liver CongressTM 2015 in April 2015.
Grazoprevir/elbasvir is an investigational, once-daily single tablet regimen consisting of grazoprevir (NS3/4A protease inhibitor) and elbasvir (NS5A replication complex inhibitor). As part of Merck’s broad clinical trials program, grazoprevir/elbasvir is being studied in multiple HCV genotypes and in patients with difficult-to-treat conditions such as HIV/HCV co-infection, advanced chronic kidney disease, inherited blood disorders, liver cirrhosis and those on opiate substitution therapy.
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