Michel Bazinet, Victor Pântea, Valentin Cebotarescu, Lilia Cojuhari, Pavlina Jimbei, Mark Anderson, Jeff Gersch, Vera Holzmayer, Carina Elsner, Adalbert Krawczyk, Mary C. Kuhns, Gavin Cloherty, Ulf Dittmer, Andrew Vaillant – 13 November 2020 – The nucleic acid polymer REP 2139 inhibits assembly/secretion of hepatitis B virus (HBV) subviral particles. Previously, REP 2139‐Ca and pegylated interferon (pegIFN) in HBV/hepatitis delta virus (HDV) coinfection achieved high rates of HDV RNA and hepatitis B surface antigen (HBsAg) loss/seroconversion in the REP 301 study (NCT02233075).