Therapeutic Safety and Efficacy of REP 9AC (REP 2055) in HBV or HCV Infected Patients

Summary

REP 9AC (REP 2055) is a nucleic acid polymer (NAP) with entry activity against hepatitis C virus and entry and post-entry antiviral activity against duck hepatitis B virus (DHBV) infection. REP 2055 has been shown to have potent prophylactic effect against HCV infection in vivo and potent therapeutic effect against established DHBV infection in vivo The REP 101 protocol is the first-in-man proof of concept study designed to investigate the safety and antiviral activity of REP 2055 administration in human patients with chronic HBV or HCV infection.

Timeline

Start

2009-01

Primary completion

2012-12

Completion

2012-12

Publications

• Background Matsumura T, Hu Z, Kato T, Dreux M, Zhang YY, Imamura M, Hiraga N, Juteau JM, Cosset FL, Chayama K, Vaillant A, Liang TJ. Amphipathic DNA polymers inhibit hepatitis C virus infection by blocking viral entry. Gastroenterology. 2009 Aug;137(2):673-81. doi: 10.1053/j.gastro.2009.04.048. Epub 2009 Apr 23.
• Background Noordeen F, Vaillant A, Jilbert AR. Nucleic acid polymers inhibit duck hepatitis B virus infection in vitro. Antimicrob Agents Chemother. 2013 Nov;57(11):5291-8. doi: 10.1128/AAC.01003-13. Epub 2013 Aug 12.
• Background Noordeen F, Vaillant A, Jilbert AR. Nucleic acid polymers prevent the establishment of duck hepatitis B virus infection in vivo. Antimicrob Agents Chemother. 2013 Nov;57(11):5299-306. doi: 10.1128/AAC.01005-13. Epub 2013 Aug 12.
• Background Noordeen F, Scougall CA, Grosse A, Qiao Q, Ajilian BB, Reaiche-Miller G, Finnie J, Werner M, Broering R, Schlaak JF, Vaillant A, Jilbert AR. Therapeutic Antiviral Effect of the Nucleic Acid Polymer REP 2055 against Persistent Duck Hepatitis B Virus Infection. PLoS One. 2015 Nov 11;10(11):e0140909. doi: 10.1371/journal.pone.0140909. eCollection 2015.
• Al-Mahtab M, Bazinet M, Vaillant A. Safety and Efficacy of Nucleic Acid Polymers in Monotherapy and Combined with Immunotherapy in Treatment-Naive Bangladeshi Patients with HBeAg+ Chronic Hepatitis B Infection. PLoS One. 2016 Jun 3;11(6):e0156667. doi: 10.1371/journal.pone.0156667. eCollection 2016.

Drugs

Indications