Active clinical trials for "Hepatitis A"

The primary objective of this study is to estimate the distributions of HCV viral/human genotypes (including IL28B and inosine triphosphatase, ITPA), and HCV RNA level among ITPA gene among 1000 Han ethnic Chinese patients with HCV who are antiviral treatment naive at the time the study is conducted.

Liver-related death is the leading cause of mortality in HIV-infected individuals with CD4+ cell counts over 200, and hepatitis C virus (HCV) infection is the greatest risk for liver-related mortality in HIV-positive patients. Compared to HCV monoinfected individuals, patients with HIV and HCV coinfection experience accelerated progression of liver fibrosis, which can lead to higher incidence of cirrhosis, end stage liver disease (ESLD), and death. Changes in CD8+ T-cell activation, inflammatory cytokines, and serum markers of tissue injury may offer an immunologic platform to determine factors associated with progressive liver fibrosis in coinfected patients. In this cross-sectional study we will evaluate whether HIV and HCV coinfection patients with well-controlled HIV infection who have an undetectable viral load exhibit abnormal levels of inflammation and immune activation, potentially contributing to advanced liver fibrosis. Comparative groups include coinfected patients successfully treated for hepatitis C, or who have absence of hepatitis C viremia through spontaneous clearance, hepatitis C monoinfected patients, and HIV-positive patients with well-controlled HIV infection without hepatitis C. Liver fibrosis will be measured by non-invasive methods. The primary objectives of this study are: To determine if there are differences in markers of inflammation and immune activation in subsets of patients with HIV, hepatitis C, and HIV and hepatitis C coinfection. To assess the stage of liver fibrosis using non-invasive methods in subsets of patients with hepatitis C and HIV and hepatitis C coinfection and compare the degree of liver fibrosis with levels of inflammation and immune activation.

This Registry is designed to obtain long term data on participants who have failed to achieve sustained virologic response (SVR) while receiving at least one Gilead oral antiviral agent (OAV) in a previous Gilead-sponsored hepatitis C virus (HCV) study.

A lot of elderly people travel to hepatitis A endemic areas. The prevalence of hepatitis A IgG positivity is declining in the Netherlands, also in the elderly. Studies show that people above 40 years of age have a slower immune response to hepatitis A vaccination. However, a lot of travelers seek pre-travel advice only shortly before their journey. More information about the time to adequate antibody response after hepatitis A vaccination is required to provide good protection during travelling. Alternative protection with immunoglobulins are available. Study design: Observational, longitudinal pilot study Study population: 20 adults over 60 years of age with a negative hepatitis A IgG, (with a estimated 50% positivity for hepatitis A IgG in this age Group, 40 patients in this age group) 20 adults 18-40 years of age as controls. Intervention (if applicable): When hepatitis A vaccination is indicated and informed consent is obtained, hepatitis A IgG wil be measured at day 0, 7, 14, 21 en 28. Main study parameters/endpoints: Time to protective hepatitis A IgG. Nature and extent of the burden and risks associated with participation, benefit and group relatedness: hepatitis A vaccination will be given also outside this study. In the study 5 venous punctures of 7 ml of blood.

Hepatitis E is a worldwide disease. It is the leading or second leading cause of acute hepatitis in adults in developing countries from sub-Saharan Africa or Southeast Asia, where it is hyperendemic and principally water-borne. In industrialised western countries, hepatitis E was until recently considered as imported from hyperendemic geographical areas, but is currently an emerging autochthonous infectious disease. A growing body of data from Europe, America, Australia, and Asia strongly indicate that pigs represent a major Hepatitis E Virus (HEV) reservoir and might be a source of zoonotic transmission to humans through direct or indirect exposure. Hepatitis E typically causes self-limited acute infection. However, the overall death rate is 1-4%, and it can reach 20% in pregnant women and might be still higher in patients with underlying chronic liver disease. To date, no preventive or curative treatment of hepatitis E is available.

To study retreatment in patients who failed prior treatment with interferon alpha (pegylated or non-pegylated) with or without ribavirin in a real-life setting in an observational/noninterventional study.

The objective of the study is to evaluate the safety and efficacy of PegIntron plus Rebetol combination therapy administered to patients with chronic hepatitis C. The study will exclude (1) subjects with HCV genotype 1 and high viral load, and (2) interferon-naïve subjects with low viral load. It is being conducted as a post-approval commitment, in accordance with the Ministry of Health, Labour and Welfare's guideline on Good Post-marketing Study Practice. Post-marketing surveys are not considered applicable clinical trials and thus the results of this survey will not be posted at its conclusion. The results will be submitted to public health officials as required by applicable national and international laws.

Hepatitis C Virus is constantly evolving genetically, particularly in response to the immune system. This is an observational study to examine if immunosuppressants particularly calcineurin inhibitors taken by transplant patients in order to avoid organ rejection causes predictable changes in the genetics of this virus that might be important in order to treat it effectively.

The objective of this study is to evaluate patient satisfaction in hepatitis C patients receiving PegIntron pen plus Rebetol. The rationale is that the effectiveness of treatment is correlated with adherence to the prescribed regimen which, in turn, is affected by the ease of use and accuracy of treatment administration. Since the PegIntron pen is a novel device, the results of this study will be used to improve the training of patients and healthcare providers in PegIntron pen use.

This single arm study will investigate the predictive value of a week 4 virological response on sustained virological response in patients with chronic hepatitis C, genotype 2 or 3, treated with PEGASYS + Copegus. Eligible patients will be treated with PEGASYS 180 micrograms/week sc + Copegus 800mg/day po; those who have a virological response at week 4 will continue to be treated for 24 weeks, followed by a 24 week treatment-free follow-up. Non-responders at week 4 will be entered into a separate protocol (MV21371) to receive PEGASYS + Copegus for 24 or 48 weeks. The anticipated time on study treatment is 3-12 months, and the target sample size is 100 individuals.