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The purpose of this study is to determine if the combination treatment of CTS-1027, pegylated interferon and ribavirin can improve the response rates in HCV patients who did not previously respond to pegylated interferon and ribavirin therapy.
A subset of non-responders to standard of care treatments (pegylated interferon and ribavrin) is termed null responders. Null responders are the most treatment refractory population. Treatment for null responders is currently limited: retreatment with SOC results in approximately 5% sustained virologic response (SVR).
CTS-1027 may facilitate the activity of interferon by preventing MMP-induced cleavage and deactivation in the first phase of clinical response to therapy. In addition, CTS-1027, like ribavirin, alone does not significantly affect viral replication, but both CTS-1027 and ribavirin are likely to impact response to therapy during the second and slower phase of the clinical response.
The potential of MMP inhibition to facilitate the action of interferon, together with ribavirin-driven up-regulation of interferon stimulated genes, has the potential to yield a potent host immune response in this highly resistant null-responder patient population. Again, since MMP inhibition is thought to target the second slower phase kinetics, the initial treatment duration in this trial will be 24 weeks.
This trial will evaluate the safety and efficacy of CTS-1027 combined with SOC in patients who did not previously respond to SOC therapy.
Allocation: Non-Randomized, Control: Historical Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Hepatitis C Virus Infection
CTS-1027, Pegylated Interferon, Ribavirin
Active, not recruiting
Conatus Pharmaceuticals Inc.
Published on BioPortfolio: 2014-07-23T21:11:03-0400
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A family of hepatotropic DNA viruses which contains double-stranded DNA genomes and causes hepatitis in humans and animals. There are two genera: AVIHEPADNAVIRUS and ORTHOHEPADNAVIRUS. Hepadnaviruses include HEPATITIS B VIRUS, duck hepatitis B virus (HEPATITIS B VIRUS, DUCK), heron hepatitis B virus, ground squirrel hepatitis virus, and woodchuck hepatitis B virus (HEPATITIS B VIRUS, WOODCHUCK).
INFLAMMATION of the LIVER in humans caused by HEPATITIS DELTA VIRUS, a defective RNA virus that can only infect HEPATITIS B patients. For its viral coating, hepatitis delta virus requires the HEPATITIS B SURFACE ANTIGENS produced by these patients. Hepatitis D can occur either concomitantly with (coinfection) or subsequent to (superinfection) hepatitis B infection. Similar to hepatitis B, it is primarily transmitted by parenteral exposure, such as transfusion of contaminated blood or blood products, but can also be transmitted via sexual or intimate personal contact.
INFLAMMATION of the LIVER in humans caused by HEPATITIS C VIRUS, a single-stranded RNA virus. Its incubation period is 30-90 days. Hepatitis C is transmitted primarily by contaminated blood parenterally, and is often associated with transfusion and intravenous drug abuse. However, in a significant number of cases, the source of hepatitis C infection is unknown.
A species in the genus HEPATOVIRUS containing one serotype and two strains: HUMAN HEPATITIS A VIRUS and Simian hepatitis A virus causing hepatitis in humans (HEPATITIS A) and primates, respectively.
INFLAMMATION of the LIVER in humans due to infection by VIRUSES. There are several significant types of human viral hepatitis with infection caused by enteric-transmission (HEPATITIS A; HEPATITIS E) or blood transfusion (HEPATITIS B; HEPATITIS C; and HEPATITIS D).
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