Safety and Efficacy of Vaniprevir (MK-7009) With Pegylated Interferon (Peg-IFN) and Ribavirin (RBV) in Treatment-Experienced Hepatitis C Virus (HCV) Participants (MK-7009-009)

Summary

The purpose of this study is to test the safety, tolerability, and efficacy of 4 regimens of Vaniprevir + Peg-IFN and Ribavirin as compared to Placebo (PBO) + Peg-IFN/RBV. The primary hypotheses are that Vaniprevir is well tolerated, and that Vaniprevir 600 mg twice daily (b.i.d.) is superior to the control regimen for the percentage of non-cirrhotic (NC) participants achieving undetectable HCV ribonucleic acid (RNA) 24 weeks after the end of study therapy (SVR24).

Timeline

Start

2009-03-27

Primary completion

2012-03-26

Completion

2012-09-10

Outcome

Met primary endpoint

registry 24- or 48-wk Vaniprevir 600 mg + Peg-IFN/RBV vs 48-wk PBO + Peg-IFN/RBV; p <0.001; Adjusted difference in percentage 53.6 (95% CI 34.5 to 69.1) NCT00704405 ↗

Publications

• Results Lawitz E, Rodriguez-Torres M, Stoehr A, Gane EJ, Serfaty L, Bhanja S, Barnard RJ, An D, Gress J, Hwang P, Mobashery N. A phase 2B study of MK-7009 (vaniprevir) in patients with genotype 1 HCV infection who have failed previous pegylated interferon and ribavirin treatment. J Hepatol. 2013 Jul;59(1):11-7. doi: 10.1016/j.jhep.2013.02.008. Epub 2013 Feb 21.
• Results Rodriguez-Torres M, Stoehr A, Gane EJ, Serfaty L, Lawitz E, Zhou A, Bourque M, Bhanja S, Strizki J, Barnard RJ, Hwang PM, DiNubile MJ, Mobashery N. Combination of vaniprevir with peginterferon and ribavirin significantly increases the rate of SVR in treatment-experienced patients with chronic HCV genotype 1 infection and cirrhosis. Clin Gastroenterol Hepatol. 2014 Jun;12(6):1029-37.e5. doi: 10.1016/j.cgh.2013.09.067. Epub 2013 Oct 10.

Drugs

Indications