Active clinical trials for "Hepatitis A"

This is a prospective, multi-center observational study in adult participants chronically infected with hepatitis C virus (HCV) receiving the interferon-free ABBVIE REGIMEN (ombitasvir/paritaprevir/ritonavir with or without dasabuvir) with or without ribavirin (RBV). The prescription of a treatment regimen was at the discretion of the physician in accordance with local clinical practice and label. This study focused on collecting real world data. Follow-up visits, treatment, procedures and diagnostic methods followed physicians' routine clinical practice using a 12-week treatment regimen (four visits plus two interim data collection windows) or a 24-week treatment regimen (four visits plus three interim data collection windows) and is based on the anticipated regular follow-up for patients undergoing treatment for chronic hepatitis C (CHC). Participants are observed for the duration of the ABBVIE REGIMEN therapy and for up to 24 weeks after treatment completion.

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.

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.

This exploratory study will carry out a respondent-driven sampling exercise, where participants will identify their previous injecting partners and contact these individuals to invite them to take an Hepatitis C test. The data from participants about their injecting network will be used to construct a social network map (egonet) of the interlinking injecting networks. The numbers of individuals identified in the injecting networks will be used to estimate the size of the injecting population in Dundee. Participants will be interviewed to find out how they felt about the processes used.

The goal of this research project is to build upon the Testing and Linkage to Care for Injecting Drug Users (TLC-IDU) parent study and describe post-cure HCV reinfection in a population of people who inject drugs (PWIDs) in Kenya.

Due to the occult nature of hepatitis C virus (HCV), it is estimated that less than 5% of people with chronic hepatitis C (CHC) infection knowing their status. The major challenges are that awareness is lacking, reliable diagnostics and testing services are not sufficiently available, and laboratory capacity is weak. In the context of major tertiary hospitals, the well-functioning laboratories would ensure the high-quality HCV testing, which facilitate the identification of inpatients who are unaware of HCV infection. However, given the preliminary data, diagnostic rate of inpatients from non-infectious (non-ID) departments is disturbingly low. A recent study from a major hospital in Jilin province of China showed that 3.36% of inpatients were anti-HCV positive; however, HCV RNA confirmatory testing was not further performed in this study. From the retrospective cohort in non-ID departments of a tertiary hospital of Jiangsu during 2016 to 2017, only 25.9% (71/273) of patients with anti-HCV antibody (Ab) further had HCV RNA confirmatory test, while 40% (29/71) were identified as CHC. The previous data indicates that insufficient anti-HCV Ab testing and insufficient follow-up of patients with positive anti-HCV Ab from non-ID departments. Indeed, compared to hospitals in Western countries, the infectious department in Chinese hospitals are relative independent from non-ID departments, meanwhile the knowledge of HCV infection is relatively lacking for non-ID physicians. Therefore, an appropriate clinical pathway for integration and linkage of non-ID department and ID departments for diagnosis and care delivery of CHC patients is urgently needed. The investigator aim to establish a feasible clinical pathway and consensus guideline to enhance HCV testing surveillance with linkage to care in non-ID departments. Moreover, the participants with anti-HCV Ab also will be enrolled in the HCV prospective cohort, in which the intervention and clinical outcome of hepatitis will be longitudinally monitored in the future study.

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.

Study to determine the proportion of travelers over the age of 60 years and travelers having lived in a tropical country for more than 5 years with anti-HAV antibodies. This will be done through a blood test. The investigators will then proceed with a short statistical analysis.

The aim of our prospective study is to construct and validate a non-invasive model consisting biochemical markers, FibroScan, and radiological parameters for evaluating liver fibrosis caused by hepatitis B virus in mainland China.

This retrospective study will evaluate the association of biomarkers and the treatment response of patients with chronic hepatitis B, who have completed therapy with Pegasys (peginterferon alfa-2a) ± lamivudine. For the analysis stored serum samples obtained from patients will be used; no actual patients are involved.