Active clinical trials for "Hepatitis A"

This study will assess the effect of treatment for hepatitis C virus (HCV) on cardiovascular disease risk. The study will enroll men and women who are infected with HCV and have underlying metabolic disease. All participants will receive a 12-week course of an HCV treatment (elbasvir/grazoprevir). Cardiovascular disease risk will be evaluated at baseline, week 4 on treatment, 12 weeks post-treatment, and 52 weeks post-treatment through noninvasive measurements of endothelial function, insulin resistance, liver fibrosis and steatosis, and circulating blood biomarkers.

The goal of this natural history study is to examine the immune responses to the Heplisav-B vaccine in Veterans living with HIV who were non-responders to prior HBV vaccination. A comparison group of HBV vaccine nonresponders without HIV infection will be enrolled to characterize the HIV-associated immune alterations that affect vaccine response. The investigators hypothesize that TLR9-mediated innate immune stimulation with Heplisav will elicit HBV seroprotection despite prior vaccination failures in persons living with HIV, compared to HIV uninfected individuals. Participants eligible for Heplisav-B vaccination will be asked to provide blood samples at multiple timepoints before and after their vaccination.

Fatty liver disease is increasingly recognized in patients with chronic hepatitis B (CHB). Whether concurrent fatty liver disease affects the long-term outcomes of CHB is unclear. The investigators performed a longitudinal study to investigate the prognostic relevance of concurrent fatty liver disease for patients with CHB receiving antiviral therapy.

The purpose of the study is to describe: 1) the clinical profile, past and current management of participants with hepatitis C in Brazil reference centers; 2) the current situation about demographics characteristics, liver disease progression and clinical outcomes in Brazilian Hepatitis C virus (HCV) participants naive, in treatment and previously exposed to antiviral treatment without sustained virological response (SVR).

This study aims to assess the frequency and severity of adverse events during Hepatitis C therapy with or without first generation protease inhibitors.

This post-marketing surveillance (PMS) study for Sovaldi® tablets (sofosbuvir, SOF) administered in combination with Copegus® tablets (ribavirin, COPE) will evaluate the safety and efficacy of SOF administered in combination with ribavirin under real world use in Japan. Among adult patients with chronic genotype 2 hepatitis C virus (HCV) infection and treated with SOF+ribavirin in routine clinical use, the primary objective of this study is to evaluate the incidence of adverse drug reactions (ADRs) under real world settings.

Using European data from patients included in the Named Patient Program (NPP) and from the early post-marketing authorization period, the present study aims to describe patient characteristics and to describe the effectiveness of Daclatasvir (DCV)-based regimens in Europe. This will be a retrospective cohort study of patients who received treatment with a DCV-based regimen in the following context: Patients enrolled within the European NPP in one of the following countries Austria, Denmark, Italy, Sweden, Spain, Switzerland, United Kingdom; or In those countries where DCV is commercially available (ie, Sweden, Germany, United Kingdom), patients who received DCV during the early post-marketing authorization period The results of this study will contribute to a better understanding of effectiveness of DCV-based regimens in a population that differs from population in the clinical trials, and therefore will provide additional valuable information to inform clinical practice. This study intends to estimate primarily the effectiveness of DCV-based regimens as measured by the sustained virologic response at post treatment follow-up visit week 12 (SVR12). As well as estimate the effectiveness of DCV-based regimens as measured by SVR12 after the end of Hepatitis C virus (HCV). This study intends also to describe as secondary objectives the characteristics (ie, demographic and clinical characteristics and treatment patterns of patients starting a new DCV-based regimens) of patients receiving DCV as well as the effectiveness of DCV-based regimens as measured by: On-treatment virological response at post treatment follow-up visit Week 4; and Virological response at the end of treatment (EOT); and The sustained viral response at post treatment follow-up visit Week 4 (SVR4) and post treatment follow-up visit Week 24 (SVR24); and The occurrence of virological failure (on-treatment and relapse). An exploratory objective will be to assess the concordance between SVR4 and SVR12 among the overall population treated with DCV.

The objectives of the study are to determine the impact of interferon-free treatment for the hepatitis C virus (HCV) on peripheral blood immune cell phenotype and soluble immune-related proteins in blood, while controlling for genetic polymorphisms known to impact HCV-related immune responses, and to determine the impact of the therapy on the emergence of drug-resistant HCV. The study design is informed by the researchers recent investigations of patients receiving HCV treatment. About 4% of patients who had not undergone liver transplantation experienced hepatic decompensating or another serious event. There were several cases of bacterial infection and two cases with elevated markers of autoimmune processes. These events suggest that treatment altered immune responses. About 25% of patients who had undergone liver transplantation experienced hepatic decompensating or another serious adverse event. The long term goal is to understand the pathophysiology of these complications and determine whether HCV treatment can cause an immune reconstitution syndrome in susceptible patients, while improving antimicrobial defenses in others

The hypothesis of this investigation stresses that the current understanding of the prevalence of HCV infection in the general population and in different subgroups will serve to lay out medium- and long-term measures for action geared toward reducing the disease burden through preventive, research, screening and therapeutic measures. Aim: To determine the prevalence of seropositivity and chronic infection with the HCV and to analyze the associated factors. To analyze and infer different screening strategies for HCV infection based on the at-risk groups/cohorts of elevated prevalence detected. to assess the efficiency of screening strategies and the subsequent cost-effectiveness of treatment in the general population

This noninterventional, open-label study will observe the safety and tolerability of peginterferon alfa-2a in combination with ribavirin among Austrian participants treated for HCV infection according to routine practice.