View clinical trials related to Hepatitis C.
Filter by:Aim To evaluate the effects of peginterferon and ribavirin therapy on the immune response in chronic HCV genotype 1,2 or 3 patients before, during and after treatment. Background Treatment of chronic hepatitis C (HCV) has shown a remarkable success. However, genotype 1 patients have reduced response rates. A better understanding and improvement of these results can now be considered the greatest challenge. In chronically infected patients, HCV-specific immune responses are generally weak, narrowly focused, and often dysfunctional. The presence of HCV-specific cells suppressing the immune response (regulatory T-lymphocytes=Treg) are able to suppress the immune response. These Treg are possibly responsible for the impaired immune response. Previous studies have indicated increased Treg frequency and activity of immune regulating mechanisms, locally in the liver, as a result of HCV re-infection. Hence, these Data highlight the importance of monitoring intrahepatic immune responses in addition to peripheral immune responses. Using the minimally-invasive technique of fine-needle aspiration biopsy (FNAB), it is now possible to obtain safe and frequent liver samples to monitor local antiviral immune responses in chronic HCV patients during antiviral therapy. Rationale and hypothesis of the study Our previous studies and current literature support the concept that Treg may contribute to HCV persistence by suppressing HCV-spec immune responses. The current study is designed to examine if peginterferon and ribavirin therapy affects the activity of Treg and DC, and if this results in enhanced HCV-specific immune responses. Design Single centre, translational and observational open label study with one arm of 20 genotype 1 patients and one arm of 7 genotype 2/3 patients.
The purpose of this study is to evaluate the safety and efficacy of nitazoxanide-peginterferon and nitazoxanide-peginterferon-ribavirin combination regimens compared to the standard of care (peginterferon-ribavirin) in treating chronic hepatitis C genotype 4. The study will also evaluate the effect of the studied treatment regimens on end of treatment virologic response, ALT normalization and safety parameters.
The PROVE3 trial is a partially double blinded, randomized, Phase 2 research study of an investigational drug, Telaprevir (VX-950) or Placebo, with Pegylated Interferon Alfa 2a (Peg-IFN-alfa-2a, Pegasys®), and Ribavirin (RBV, Copegus®) in people with genotype 1 hepatitis C who have not achieved a Sustained Viral Response (SVR) with a previous treatment of interferon therapy.
This study will evaluate the effect of treatment with 24 weeks nitazoxanide monotherapy on end of treatment virologic response, sustained virologic response, reduction of quantitative serum HCV RNA, changes in ALT and safety parameters.
The purpose of this study is to evaluate the safety and efficacy of nitazoxanide-peginterferon alfa-2b combination therapy compared to peginterferon monotherapy in patients that are treatment naive or pre-treated for 24 weeks with nitazoxanide monotherapy in the treatment of chronic hepatitis C.
This study will evaluate the efficacy and safety of 4 regimens of PEGASYS plus Copegus, in patients with chronic hepatitis C (CHC) genotype 1 who have failed to respond to previous treatment with standard doses of PEGASYS plus ribavirin. Patients will be randomized to one of 4 groups, to receive a)PEGASYS 360 micrograms/week plus Copegus 1000-1200mg/day, b)PEGASYS 180 micrograms twice weekly plus Copegus 1000-1200mg/day, c)PEGASYS 360micrograms/week plus Copegus 1200-1600mg/day, or d)PEGASYS 180 micrograms twice weekly plus Copegus 1200-1600mg/day. Following 48 weeks treatment, there will be a 24 week period of treatment-free follow-up. The anticipated time on study treatment is 3-12 months, and the target sample size is 100-500 individuals.
This is a phase 3, randomized, multi-center study to evaluate the efficacy and safety of albumin interferon alfa-2b (alb-IFN)in combination with ribavirin compared with peginterferon alfa-2a (PEGASYS or PEG-IFNa2a) in combination with ribavirin in subjects with chronic hepatitis C, genotype 2/3 who are IFNa treatment naive.
The purpose of the study is to check whether development of depression as a side effect of interferon alpha treatment in chronic carriers of hepatitis C can be prevented by omega-3 fatty acids.
The purpose of this study is to develop and evaluate a 9-month psychosocial intervention that will assist patients with hepatitis C in overcoming barriers that prevent them from becoming appropriate candidates for interferon therapy.
We hypothesize that atorvastatin will decrease HCV viral load in patients taking the medication. Cholesterol is needed for HCV virion production. Cell culture studies have shown that atorvastatin (an HMG-CoA reductase inhibitor) decreases HCV viral replication. As atorvastatin has been proven to decrease heart attack and stroke in patients with high cholesterol, this medication is indicated for the treatment of elevated cholesterol in at risk individuals. Therefore we propose to study the effect atorvastatin has on the viral load of patients initiated on atorvastatin therapy for their elevated cholesterol.