Active clinical trials for "Hepatitis A"

This is an observational study of patients undergoing treatment with PegIntron and Rebetol for chronic hepatitis C in clinical practice in Belgium. Treatment will not be administered as part of the study. Safety parameters will be assessed retrospectively. Efficacy parameters, such as relapse rates and sustained virologic response rates, will be assessed prospectively. The objective of the study is to examine any associations between safety, virologic, histologic, demographic parameters and patient outcome (relapse rates and sustained virologic response rates).

This is prospective, longitudinal cohort study involving HIV-positive, antiretroviral (ART)-treated, heavy alcohol drinking participants who have and do not have alcoholic hepatitis.

This cross-sectional study will screen out hepatitis D virus-infected patients in HBsAg-positive people. Observe and describe the prevalence of hepatitis D infection among HBsAg positive people. The provinces of China are divided into 5 geographical areas (North, South, East, West and Central) to recruit patients according to the population density of each area. After statistical calculation, the total number of population needed is 3808.

Hepatitis E virus is a single-stranded positive-sense RNA virus with genome of approximately 7.2kb in length. The HEV genome is capped at the 5' end followed by a small untranslated region of 27 nucleotides and polyadenalated at the 3' end preceded by another UTR of 65 nucleotides . HEV has three open reading frames: ORF1, ORF2 and ORF3 that encode structural and non- structural proteins. ORF1 is the largest one, approximately 5,000 nt in length, located at the 5 ' end and encodes important proteins for the replication process (methyltransferase, papain-like cysteine protease, helicase, and RNA-dependent RNA polymerase). A noncoding, hypervariable region within ORF1 displays substantial genetic diversity; this region seems to modulate the efficiency of HEV replication. Notably, the differences in the genome size among different HEV strains are confined mainly to this region .ORF2 is located at the 3' end, encodes structural capsid proteins of 660 amino acids and contains three potential glycosylation sites. The ORF2 protein contains multiple immunogenic sites and neutralizing antibodies are directed against it al., .The essential region in the protein for immunogenicity is 452aa-617aa and the neutralizing epitopes have recently been shown to be conformational .ORF3 is located between the other two reading frames and encodes a small phosphoprotein of 123 amino acids. Its exact function has not been yet determined, however, multiple functions have been proposed. It is thought to interact with cellular mitogen-activated protein kinase phosphatase and other extracellular kinases, promoting cell survival through activation of intracellular signaling pathways .Moreover, the binding of the ORF3 encoded protein to host-specific proteins seems to influence the pathogenesis of HEV infections .A schematic drawing of the HEV genome is described in Figure 1 .

The aim of this study was to evaluate knowledge and behavior of physicians regarding Hepatitis B Virus. The investigators designed a 30-item self-administered questionnaire assessing physicians' knowledge and behavior regarding chronic Hepatitis B Virus infection. These results provide data support for updating guidelines, continuing training, and even developing policies in medical insurance.

The purpose of this study is to recruit a random and representative sample of individuals within several Zambian communities for markers of Hepatitis B Virus (HBV) and to characterize chronic HBV infection and indications for treatment.

Primary Purpose: Evaluate the prevalence and incidence of HEV infection in MHD patients. Compare differences of the prevalence and incidence between the MHD patients and the control. . Secondary purpose: Analyze risk factors of HEV infection.

The hypothesis was to check whether baseline anti-E1E2 antibodies were correlated with the on-treatment viral kinetics and could predict virological outcome in treatment-experienced HCV-infected cirrhotic patients receiving protease inhibitor-based triple therapy.

Anemia is more frequent in patients receiving telaprevir with pegylated-interferon/ribavirin than in those receiving pegylated-interferon/ribavirin alone. The objective was to measure the impact of telaprevir on ribavirin bioavailability and to assess the concomitant renal function.

Screening, diagnosis and treatment of HCV in PWID, should be part of a harm reduction strategy. Treatment of HCV infected PWID should be delivered in a multidisciplinary care setting with services to reduce the risk of reinfection and for management of the common social and psychiatric comorbidities in this population. More frequent diagnosis, new methods that prevent loss of tracking, and access to antiviral treatment are all strategies that must be implemented jointly if the prevalence of HCV infection in our setting is to be reduced.