View clinical trials related to Hepatitis B.
Filter by:The anti-HBs produced after hepatitis B vaccination will decrease over time. College students are vaccinated with hepatitis B vaccine at birth, and their antibodies may have decreased significantly. In addition, college students are sexually active population, which has a high risk of HBV infection. It is necessary to study the anti-HBs level of college students, and analyze the strengthening immunization for this special group. This study will analyze the immunogenicity, immune persistence, and safety of booster dose of intramuscular 20 µg recombinant hepatitis B vaccines. Different booster vaccination including one-dose (0 month), two-dose (0, 1 months), or three-dose (0, 1, and 6 months) was given according to the antibody production level after booster vaccination among college students.
Chronic hepatitis B (CHB) infection remains an important public health with more than 240 million people chronically infected despite the existence of an effective vaccine. Cirrhosis and hepatocellular carcinoma (HCC) are major complications of CHB infection and are responsible for more than 600,000 deaths each year. These complications are strongly related to the function of the immune system. Indeed, the persistence of HBV and the progression of liver disease are mainly due to the development of an ineffective immune response to HBV. Therefore, the clinical outcome depends on the complex interaction between HBV replication and adaptive immune responses. The ultimate goal of antiviral treatments is the elimination of HBsAgHBs and the appearance of anti-HBs antibodies without detectable PCR replication. Current treatments are effective at lowering viral DNA levels, but they are not able to permanently eliminate chronic HBV infection, due to the persistence of cDNA in the nucleus of infected hepatocytes. This therapeutic goal is rarely achieved and new therapeutic approaches are needed. In this sense, Immunotherapy represents a very promising new therapeutic approach that could lead to the cure of chronic HBV infection. Indeed, HBV infection is characterized by a progressive depletion of T lymphocytes which results in a progressive loss of function, associated with a sustained positive regulation of inhibitory control molecules. Thus, the objective of this study is to define the immune signature and the main control pathways associated with T-cell depletion in patients chronically infected with HBV, by analyzing immune cells isolated from these patients at phenotypic , transcriptional and functional levels
This prospective cohort study is initiated to evaluate the compliance improvement to the standardized follow-up and clinical management in the population of compensatory hepatitis B cirrhosis with a mobile health application (APP). Patients were enrolled and divided into APP self-management group (APP only ) and APP intelligent-management group (APP and online interaction). The compliance to the standardized follow-up and clinical management (every six months) under the two clinical management modes would be evaluated and compared with the history data extracted from the platform of China Registry of Hepatitis B (CR-Hep B).
In this study, treatment-naïve HBV-related cirrhosis patients were retrospectively enrolled at the first episode of decompensation (ascites or variceal hemorrhage). Patients were followed up every 6 months until death /liver transplantation or for 5 years. Clinical data from medical records about past history, first decompensated events, second /further decompensated events, HCC, and death/ liver transplantation were retrospectively collected. In this retrospective study, the incidence of re-compensation and its clinical characteristics were mainly explored.
The primary objective is to assess overall sensitivity and specificity of Oncoguard™ Liver for hepatocellular cancer (HCC) detection in a surveillance population.
HBV(hepatitis B virus) with metabolic comorbidities may accelerate liver disease progression and increase the risk of HCC(Hepatocellular Carcinoma)development. It is reported combination of metabolic diseases and CHB is associated with substantially increased rates of liver cirrhosis and secondary liver-related events compared to CHB alone. Consequently, hepatitis B patients with metabolic comorbidities warrant particular attention in disease surveillance and evaluation of treatment indications.
In order to tackle the unmet needs in chronic HBV infection, a consortium of clinical partners has gathered to establish a registry for patients with hepatitis B mono- and co-infections. The partners will build up a European-wide registry to be able to stratify patients for upcoming clinical trials. Extensive analyses of virus and host-specific parameters are to be carried out from these patients. The knowledge gained thereby should contribute to a better understanding of the HBV control and enable patient stratification with regard to immunomodulatory therapies. Furthermore, hepatitis B patients are to be identified who are willing to participate in future studies to investigate immunotherapies to cure HBV infections (e.g. therapeutic vaccines).
The ANRS HB07 IP-cure-B study is a proof of concept Phase II clinical trial in HBeAg negative virally suppressed non-cirrhotic CHB patients. It will explore whether stopping NUC or stopping NUC after SLGN administration can increase the rate of HBsAg decline compared to standard of care CHB treatment.
In a population of cirrhotics patients who did not responde to an anti-HBV vaccination according to the recommended vaccination, the goal is to : Describe the proportion of patients with HBs antibody levels greater than 10mUI/mL at 1 month of the last injection of vaccine ; with a M0-M1-M6 vaccine regimen using 3 vaccines strategies : - After simple intramuscular vaccine (IM) ( Control group ) - After simple intradermal vaccine - after IMIQUIMOD's application followed by intradermal vaccine administration The main hypothesis of this study is : IMIQUIMOD acts as an immunity booster, so the combination of IMIQUIMOD with an intra-dermal injection of the anti-HBV vaccine allows better acquisition of post-vaccination immunization.
This is a randomized, double-blind, placebo-controlled, single (Part A) and repeated dose (Part B) escalation, phase I clinical study to evaluate the safety, pharmacokinetics (PK) and preliminary pharmacodynamics (PD) of RBD1016 in subjects with chronic HBV infection.