Arbutus Biopharma Corporation, a biopharmaceutical company, engages in discovering, developing, and commercializing a cure for patients suffering from chronic Hepatitis B virus (HBV) infection in Canada and the United States. It also develops a pipeline of products based on RNA interference therapeutics (RNAi). The company's lead candidate is ARB-1467, which is in a Phase II trial to eliminate HBV surface antigen expression in patients chronically infected with HBV. Its product candidates also comprise ARB-1740, a pan-genotypic second-generation siRNA therapeutic in Phase II multi-dose study in Hepatitis B e antigen-chronic HBV patients; and AB-423, a core protein/capsid assembly inhibitor in Phase I clinical trial as an oral therapeutic for the treatment of chronic HBV infection. In addition, the company has various research programs for the discovery and development of proprietary HBV candidates, including oral surface antigen inhibitors, cccDNA targeting agents, and immunomodulators. Further, its partnered programs consist of Patisiran (ALN-TTR02), an RNAi therapeutic targeting transthyretin (TTR) in Phase III clinical trial for the treatment of TTR-mediated amyloidosis in patients with FAP; Marqibo for the treatment of adult patients with Philadelphia chromosome-negative acute lymphoblastic leukemia in second or greater relapse or whose disease has progressed following two or more lines of anti-leukemia therapy; and DCR-PH1 for the treatment of primary hyperoxaluria type 1. The company was formerly known as Tekmira Pharmaceuticals Corporation and changed its name to Arbutus Biopharma Corporation in July 2015. Arbutus Biopharma Corporation is headquartered in Burnaby, Canada.