View clinical trials related to Hepatitis B.
Filter by:Hepatocellular carcinoma (HCC) is one of the most common solid cancers worldwide, and chronic hepatitis B virus (HBV) infection is the most common etiology of HCC in Asia. Transarterial chemoembolization (TACE) is the standard treatment for patients with unresectable HCC in the BCLC intermediate stage, but the HCC recurrence rates and long-term mortality rates are quite high. These intermediate-staged HCC patients usually need repeated TACE due to tumor recurrence, and they may die of HCC progression or liver decompensation after repeated TACE. Improved liver function and decreased liver disease progression due to oral antiviral therapy have been proven to be effective for chronic hepatitis B, and oral antiviral therapy may keep better liver reserve and provide better chance for HCC patients received TACE. In addition, chronic HBV infection is one of the most important factors for HCC development, and antiviral therapy can improve the outcomes after curative treatment. However, the evidence of improving outcomes of HCC patients underwent TACE by oral antiviral therapy is lacking. Moreover, Tenofovir Disoproxil Fumarate (TDF) is one of the most potent oral antiviral agents, and its safety and very low long-term viral resistance rate have been also reported. There is no study to evaluate the impacts of TDF for HBV-related HCC patients underwent TACE. Until now, routine antiviral therapy for HBV-related HCC patients underwent TACE has still not been recommended by current guidelines. The hypothesis of this study is that a potent oral antiviral therapy for patients with HBV-related HCC patients receiving TACE improve patients' outcomes
This post-marketing surveillance (PMS) is conducted to collect safety and efficacy data among subjects with chronic hepatitis B and hepatic cirrhosis B who is treated with adefovir tablets.
At present, children less than 15 y of age have been regarded as a key group for hepatitis B immunization in China. However, there is not yet special immunization strategy for population above 15 y of age. In this study, we investigated the seroprevalence of hepatitis B and immune response to HB vaccine among Chinese college students to uncover the need on universal mass vaccination or booster immunization only for students with HBV vaccination history against hepatitis B in Chinese college students to inform decision making.
Patients who receive liver transplantation for hepatitis B virus (HBV) induced liver failure require longterm therapy to prevent HBV reinfection of the transplanted liver. The approved preventative treatment is a combination of antihepatitis B immunoglobulin (HBIg) and oral antiviral medication. In the first 6 months after liver transplantation, patients receive treatment with intravenous HBIg to maintain blood antihepatitis B (antiHBs)antibody concentrations above 100 IU/L, the level considered safe for preventing hepatitis B reinfection. Zutectra is an HBIg preparation for subcutaneous injection that is approved in the EU for the 'prevention of HBV reinfection in HBV DNA negative patients ≥ 6 months after liver transplantation for hepatitis B induced liver failure'. The purpose of this study is to show that earlier subcutaneous HBIg treatment with Zutectra after liver transplantation can prevent hepatitis B reinfection. Treatment with subcutaneous HBIg (Zutectra) at home is manageable for the majority of patients and is more convenient for patients compared to intravenous treatment that must take place in the hospital setting. Fourty patients will take part in the study at approximately 19 centres in UK, France, Italy and Spain. Patients who are eligible for the study will receive treatment with Zutectra for 24 weeks. During the study, the safety and effectiveness of Zutectra will be assessed by checking for symptoms of hepatitis B related infection, as well as monitoring blood levels of antiHBs antibodies and hepatitis B surface antigen (HBsAg).
This phase 4 study is designed for the collection of blood biomarker samples from patients who have completed chronic hepatitis B treatment with at least 25 weeks of a Pegasys (peginterferon alfa 2a) containing regimen and at least 24 weeks post-treatment follow-up. Patients may be enrolled from historical studies supported or sponsored by Roche, ongoing studies supported or sponsored by Roche or from general medical practice. The follow-up of patients who choose to participate in this study will be in accordance with the ongoing studies or with the general medical practice of the physician. Data from whole blood DNA samples collected in the GV28555 study or available from previously collected Roche Clinical Repository (RCR) samples will be used for combined analysis with data from other applicable studies. Procedures will include blood sample collection (not applicable for patients who previously have consented and donated RCR DNA samples) and medical record capture.
In Taiwan, 15% of general population had hepatitis B virus (HBV) infection, HBV is the leading cause of liver cirrhosis and hepatocellular carcinoma in Taiwan. After entering immune clearance, 10-30% of patients of chronic HBV develop acute exacerbation (AE) , some are mild but some developed hepatic decompensation or even death. Previous study found that early use of lamivudine before bilirubin level is above 20 mg/dl can improve survival in chornic HBV with severe AE. From the study from Hongkong, lamivudine was found to have better survival than entecavir in chronic HBV with severe AE. Recent study from India found that tenofovir is able to improve survival in chronic HBV with severe AE. The aim of this study is to compare the effect of lamivudine and tenofovir for chronic HBV with severe AE. The study aims to enroll 120 patients with chronic HBV defined as persistence of HBsAg for more than 6 months. Severe AE was defined as ALT > 400 U/L, prolongation of prothrombin time > 3 seconds, bilirubin > 2 mg/dl. Patients with hepatitis A, C, D or HIV infection, drug or alcoholic liver disease, hepatocellular carcinoma, under immuno-suppressive agents use, or previous use of anti-HBV agents are excluded. All enrolled patients are randomized into group A who received tenofovir 300 mg qd for 3 years and group B who received lamivuidne 100 mg qd for 6 months, followed by tenofovir 300mg qd for 30 months. Mortality rate and virological, biochemical and serological response were evaluated at 1,2,4,48,96 and 144 weeks. The values are expressed as mean + SD. Categorical variables were analyzed with Chi-square test or Fisher's exact test as appropriate and continuous variables were analyzed by Mann-Whitney test. Logistic regression test was applied to analyze the independent association of various variables with outcome. A p value < 0.05 was regarded as significant.
The purpose of this study is to assess the long-term persistence of immunity to hepatitis B in adolescents aged 15-16 years who were vaccinated with Engerix™-B Kinder in infancy. The study will also assess the immune response to a challenge dose of Engerix™-B Kinder in these subjects.
The purpose of this study is to conduct a prospective, three-group study that randomly assigns 700 parolees, in a community residential drug treatment program, to enter one of three groups: 1) a PCPC (Parolee Comprehensive Care + Phone Coaching Program), which includes nurse case management and specialized hepatitis education sessions and the hepatitis A/B (HAV/HBV) vaccination series (to all eligible) and coach-facilitated mentoring (mostly by cell-phone); 2) a Parolee Brief Hepatitis Education + HBV vaccination + Phone Coaching (PBCP) Program, which includes brief hepatitis/HIV education, HAV/HBV vaccination and coach-facilitated mentoring; or 3) a Usual Care (UC) control program, which includes brief general health information, one-on-one coaching and the HAV/HBV vaccine.
This study aims to demonstrate that patients with chronic hepatitis C (CHC) and B (CHB) experiencing regression of liver cirrhosis after effective antiviral therapy have decreased risk for hepatocellular carcinoma (HCC). Primary aim is to determine the incidence of HCC in patients with cirrhosis secondary to CHC and CHB, after treatment is provided, and to identify the magnitude of the decreased risk for HCC in patients experiencing regression of fibrosis. As a secondary aim, environmental risk factors for HCC development will be sought, in order to determine a subset of patients in whom it will be safe to stop surveillance.
The purpose of this study is to compare the long-term efficacy and safety of entecavir 1.0 mg/d + adefovir 10 mg/d with entecavir 0.5 mg/d + adefovir 10 mg/d for chronic hepatitis B patients with inadequate response to NUC therapy