Active clinical trials for "Hepatitis"

The purpose of the study are the following: 1) Pilot test and conduct baseline and 3 month follow up assessments to evaluate the preliminary efficacy of the DVD-based HIV/HCV intervention by randomly assigning 210 Latino corrections-involved, outpatient abuse treatment clients to either the experimental intervention or to a wait list control group; and 2) to evaluate both participant and interventionist acceptability of this novel DVD-based intervention. They study hypothesis are the following: participants in the intervention condition will report greater reductions in sexual risk behaviors (e.g., unprotected sexual contact) from baseline to 3 month follow-up compared to the control group; participants will report greater reductions in drug risk behaviors (e.g., sharing injection equipment, drug use during sex) from baseline to 3 month follow-up compared to the control group; participants who report more HIV prevention information, motivation, and behavioral skills will report fewer sexual risk behaviors.

The purpose of this study is to determine the change from baseline in HCV Ribonucleic acid (RNA) on Day 4 following three days of dosing with BMS-929075 in chronically genotype subtype 1a and 1b HCV infected subjects

This is a randomized, double-blind clinical trial of two inactivated hepatitis A vaccines in healthy children, immunogenicity and interchangeability of the two inactivated hepatitis A vaccines were evaluated.

The purpose of this study is to generate immunogenicity and safety data of an investigational hexavalent DTaP-IPV-Hep B-PRP-T vaccine compared to a control vaccine, Infanrix hexa™ when given along with Prevenar™ and Rotarix™ vaccines. Primary Objectives: To demonstrate the equivalence of immunogenicity of 3 lots of DTaP-IPV-Hep B-PRP-T vaccine 1 month after a 3-dose primary series (2, 4 and 6 months) when given with Prevenar™ and Rotarix™, in terms of immunoresponses. To demonstrate the non-inferiority of the hexavalent DTaP-IPV-Hep B-PRP-T vaccine to the licensed hexavalent Infanrix hexa vaccine when given with Prevenar™ and Rotarix™. Secondary Objectives: To describe in each group the immunogenicity parameters for all antigens for each vaccine To assess the safety profile in terms of solicited and unsolicited adverse events and serious adverse events in each group for each vaccine.

This is a follow-up of the primary series vaccination schedule in Study A3L24 (NCT01177722). The objectives are: To describe the antibody persistence to any antigen contained in the investigational DTaP-IPV-Hep B-PRP-T vaccine and Infanrix hexa™ prior to the booster dose To describe the safety and immunogenicity of the booster dose of either DTaP-IPV-Hep B-PRP-T or Infanrix hexa™ vaccine. To describe the immunogenicity of a booster dose of Prevenar™ given at 12 to 24 months.

Chronic hepatitis B (CHB) infection is complicated by cirrhosis and liver cancer. In Thailand, 7% of adults are chronically infected by Hepatitis B virus (HBV). The risk of perinatal transmission of HBV is about 12% when a mother has a high HBV load in her plasma, even if her infant receive specific immunoglobulin and vaccine. The hypothesis of this study is that a potent antiviral, tenofovir, can decrease HBV load in HBV infected pregnant women and therefore reduce the risk of perinatal transmission/ Pregnant women participating in this study will receive tenofovir or placebo during the last trimester of pregnancy and two months postpartum. The risk of perinatal transmission will be compared between the two groups. The results of the study will help define policy to manage HBV infected pregnant women to prevent perinatal transmission.

The purpose of this study is to design an intervention to increase hepatitis B (HBV) screening among Korean Americans. The investigators will design a culturally specific intervention (educational sessions) and test the effect of the intervention on 1200 Korean Americans. All subjects will be interviewed before the intervention/control sessions and 6 months after the sessions to assess HBV screening levels in the two groups. Self-reported HBV screening will be verified by a review of subjects' medical records. The primary study hypothesis is that the intervention group will have a higher rate of HBV serologic testing at follow-up compared to the control group.

This study will evaluate the persistence of the immune response to HAV (Hepatitis A Virus) antigens and HBs (Hepatitis B surface) antigens in healthy adults previously vaccinated with GlaxoSmithKline (GSK) Biologicals' Twinrix Adult. The subjects will be invited for blood sampling 16, 17, 18, 19 and 20 years after vaccination to evaluate the antibody persistence. For subjects in whom low circulating antibodies are detected, the presence of immune memory against hepatitis A & B antigens will be investigated by the administration of a challenge dose of the appropriate vaccine (Havrix and/or Engerix-B) at the next planned visit. No new subjects will be recruited during this study.

The aim of this Observer-blind study is to compare different Adjuvant Systems with the same, well-known antigen (HBsAg) already used in the GSK marketed vaccines against Hepatitis B (Engerix-BTM and FendrixTM), in order to better understand the immune response induced by each of the Adjuvant System. This Protocol Posting has been updated following Protocol amendment 6, October 2009. The section impacted is Eligibility Criteria

This study will evaluate the immune response against Hepatitis-A (HAV) and Hepatitis B surface (HBs) antigen in healthy subjects aged 12 to 15 years (at the time of primary vaccination), who received vaccination course with GSK Biologicals' Twinrix Adult and Twinrix Junior vaccine, approximately 10 years ago in the primary study. The subjects will be invited for blood sampling at 11, 12, 13, 14 and 15 years after primary vaccination to evaluate the persistence of immune response. For subjects detected with decreased immunity, the presence of immune memory against hepatitis A & B antigens will be investigated by the administration of a challenge dose of the appropriate vaccine 6 to 12 months after the Year 15 follow-up time-point. No new subjects will be recruited during this booster phase of the study.