View clinical trials related to Hepatitis C.
Filter by:This was a long-term follow-up study to evaluate the durability of sustained virologic response (SVR), persistence of direct-acting antiviral agent (DAA) resistance, and clinical outcomes for participants who received glecaprevir (ABT-493) and/or pibrentasvir (ABT-530) in prior AbbVie Phase 2 or 3 clinical studies for the treatment of chronic hepatitis C virus (HCV) infection.
The purpose of this study is to evaluate the effects of sustained virological response in liver and spleen stiffness in patients with HCV compensated advanced chronic liver disease treated with new all oral antiviral drugs in order to determine factors implicated in stiffness change and its implications for long-term follow-up.
Chronic liver injury leads to the accumulation of proteins in the liver that form dense scars. Liver scar formation is typically a slow process that leads to major organ damage and loss of function over the course of many years. During scar formation the extracellular matrix in the liver changes. The type and quantity of extracellular collagen and other proteins change during tissue remodeling. Some of these changes can be detected by analyzing factors present in blood. Because of the lengthy time course, changes in the rate of liver scar formation and regression are very difficult measure; however, accurate measurements are needed in order to conduct trials of interventions aimed at preventing scar formation and/or promotion scar regression. Current methods have sub-optimal specificity and selectivity. The long term objective of the study is to identify serum proteins that can be used to accurately estimate rates of liver fibrosis progression and regression. The project focusses on a novel methodology that uses stable isotope labeling with deuterated water, D2O, to tag newly-synthesized proteins. Mass spectroscopy is used to identify individual proteins and to quantify the ratio of labeled protein to total protein. This ratio provides information about the rate of synthesis of the protein of interest. This method will be applied to specimens from patients with hepatitis C virus (HCV) infection who are about to begin HCV treatment. Treatment is known to reduce liver inflammation and collagen content.
This study will investigate the effects of chronic HCV infection and corresponding innate immune activation on the immune response to HBV vaccination. We will recruit chronic HCV patients and healthy control patients for HBV vaccination. We will use RNA Sequencing (RNA-Seq), a relatively new technology for simultaneously measuring the expression of all genes, to determine patients' innate immune status, and learn how this innate immune signature is related to HBV vaccine response. We will then explore the mechanisms by which chronic HCV infection affects different immune cells and functions that are known to be important for an effective HBV vaccine response. These studies will enhance our understanding of the immune effects of chronic viral infection, establish factors that determine effective vaccine responses, and help guide vaccination strategies for HCV patients and other individuals with chronic inflammatory disease.
The main questions being addressed are (1) how patient reported outcomes change during treatment for HCV, (2) how treatment impacts liver function and liver status, and (3) how much treatment costs from the payer's perspective and the patient's perspective. The hypothesis being tested is that treatment has a negative effect on the quality of life during treatment. The negative effect is expected to be temporary. Successful treatment, which is equated with a virological cure of the infection, is expected to result in an improvement in quality of life compared to baseline and to improvement in markers of liver function and liver status. Costs of treatment are expected to be $80,000-$200,000 per virological cure.
The purpose of this study is to evaluate the pharmacokinetic interactions between simeprevir and ledipasvir in a treatment regimen consisting of simeprevir (SMV), sofosbuvir (SOF), and ledipasvir (LDV) in treatment-naive participants with chronic hepatitis C virus (HCV) genotype 1 infection.
This study will evaluate the antiviral efficacy, safety, and tolerability of ledipasvir/sofosbuvir (LDV/SOF) fixed dose combination (FDC) plus ribavirin (RBV) in treatment-naive adults with chronic genotype 3 hepatitis C virus (HCV) infection.
Primary Objective: To evaluate the efficacy (sustained virological response 12 weeks after end-of-treatment [SVR12]) of 12-week course of an interferon-free regimen combining sofosbuvir and weight-dosed ribavirin (genotype 2), or sofosbuvir and ledipasvir (genotype 1 or 4) in treatment-naïve patients infected with HCV genotype 1, 2 or 4 in West and Central Africa Secondary Objectives: 1. To estimate the study treatment SVR24 rate 2. To evaluate the clinical and biological tolerance of study treatment 3. To describe HCV kinetics under HCV treatment, and identify associated factors 4. To describe the evolution of HIV disease under HCV treatment in HVC-HIV co-infected patients 5. To describe the changes of liver fibrosis based on non-invasive tests between treatment initiation, week 24, and week 36 after treatment, and estimate its association with SVR12 or SVR24 6. To identify factors associated with SVR12 and SVR24 (including HIV status) 7. To evaluate the performance of a nanodevice for rapid diagnosis of HCV viral load and genotypying and for assessing response to treatment (SVR12 and SVR24) 8. Facilitate the detection and treatment of those infected with HCV by supporting national initiatives for access to strategies without interferon 9. To set up a HCV clinical research network across French and English-speaking African countries, able to run large-scale comparative randomized clinical trials in a near future.
The investigator believes simeprevir concentrations are unchanged when administered in combination with dolutegravir relative to administration alone. The investigator believes dolutegravir concentrations are unchanged when administered in combination with simeprevir. Additionally, the investigator believes simeprevir and dolutegravir are safe when administered alone and in combination.
This protocol is being conducted to comply with the direct request from the Taiwan Food and Drug Administration (TFDA) for a 60-month intensive pharmacovigilance protocol of patients with known hepatitis B (HBV) or hepatitis C (HCV) infection, regardless of control on antiviral therapy in Taiwan and who are treated with ipilimumab for advanced (unresectable, recurrent or metastatic) Melanoma.