Regulus expands clinical trial collaboration with GSK

Phase II study evaluating the combination of RG-101 and GSK's long-acting parenteral formulation of GSK2878175 as a potential single-visit cure to begin Q4 2016

"We are very pleased to expand our working collaboration with GSK. This is an important next step to advance the scientific understanding of the potential for a combination therapy to achieve a single-visit cure for HCV," said Paul Grint, President and CEO of Regulus. "The market research conducted to date indicates that a potential single visit cure would be a highly preferred product profile to existing regimens."

Zhi Hong, Senior Vice President and Head of the Infectious Diseases Therapy Area, GSK, commented: "We are excited about the potential of this combination to provide people living with HCV a new treatment option that could be delivered in a single visit. Together with Regulus, we are taking another step forward to proving this novel concept."

Earlier this year, pursuant to the initial GSK-Regulus clinical trial collaboration agreement, Regulus began enrolling patients in an open-label Phase II clinical trial combining RG-101 and GSK2878175 for the treatment of HCV to evaluate the potential to achieve sustained viral responses post treatment with a single subcutaneous administration of 4 mg/kg of RG-101 in combination with daily oral administrations of 20 mg of GSK2878175 for up to 12 weeks in treatment-naïve patients chronically infected with HCV genotypes 1 and 3. Regulus and GSK anticipate reporting interim results from this study by year-end.