Active clinical trials for "Hepatitis B"

The aim of this study is to evaluate the immunogenicity and safety of a novel DTaP-IPV-Hep B-PRP~T fully liquid combined hexavalent vaccine (study vaccine) administered at 2, 4, and 6 months of age compared to Sanofi Pasteur's DTaP-IPV//PRP~T combined vaccine (Pentaxim™) given at 2, 4, and 6 months of age and Hep B vaccine (Euvax B®) given at 1 and 6 months of age in South Korean infants that received a birth dose of Hep B and born to mothers documented to be serum anti-HBs Ag negative. Primary Objective To demonstrate the non-inferiority in terms of seroprotection (Diphtheria, Tetanus, poliovirus types 1, 2, and 3, PRP-T, Hep B) and vaccine response for pertussis antigens (pertussis toxoid [PT] and filamentous haemagglutinin [FHA]) of Group A versus Group B, one month after the third dose of combined vaccines. Secondary Objectives: To further study the immunogenicity of the two vaccination schemes, before the first dose and one month after the last dose of vaccines. To study the safety after each and any dose of vaccines administered in the two vaccination schemes

The objective of this study is to evaluate the immunogenicity and Anti-HBV antibody persistence of hepatitis B vaccine with different doses and schedules. Hepatitis B vaccine with the regimens of 20μg, 0-1-6 mon and 60μg,0-1 or 0-2 mon will be administered to young adults, and the comparative immunogenicity among the three groups will be measured at 1 mon post-a series vaccination, 1- and 2-year after the first dose of the regimen. Furthermore, the safety of hepatitis B vaccine with different doses and schedules will also be evaluated.

A proof of concept (POC) study will be conducted in 44 volunteers that have been fully vaccinated against hepatitis B in the past (at least 5 years ago) to assess the safety and immunogenicity of intradermal vaccination with hepatitis B surface vaccine antigen using a newly developed intradermal injection device VAX-ID, compared to intramuscular and intradermal (Mantoux technique) injection.

Combination therapies using nucleos(t)ide analogues lead to higher viral suppression although it may not be sustained for long. Also it remains unknown if combination of more potent analogues is more beneficial than individual drugs. Thus this study is carried out to determine the efficacy and safety of combination of tenofovir plus telbivudine (two most potent nucleos(t)ide analogues)versus monotherapy with either drug alone. This is a 104 week open labelled, prospective, randomized, multicentric study. The patient will receive either tenofovir, telbivudine or the combination of two drugs. After completion of 24 weeks, the non-responders (ie HBV-DNA > 300 copies/ ml) will be switched to combination arm and will continue receiving tenofovir plus telbivudine for 104 weeks.

The purpose of this study is to further evaluate the safety and seroprotective immune response of a new investigational hepatitis B virus (HBV) vaccine, HEPLISAV™, in subjects 11-55 years old. The primary hypothesis is that HEPLISAV™ is well tolerated.

This study was done to evaluate the effect of various adjuvants in combination with HBsAg as a model antigen on the induction of immune responses, mainly cytotoxic T lymphocytes (CTL) in healthy volunteers. The study was also done to evaluate the safety and reactogenicity of the various adjuvanted vaccines.

The purpose of this clinical research study is to learn if the study drug entecavir will prevent the recurrence of hepatitis B virus (HBV) in participants who receive an orthotopic liver transplant (OLT) due to HBV infection.

The purpose of this study is to find out if a new investigational hepatitis B virus vaccine, HEPLISAV™, is safe and effective compared with Engerix-B® vaccine in subjects 11-55 years old. The primary hypothesis is that the seroprotective immune response of HEPLISAV™ is at least as good as that of Engerix-B®.

To describe the immunogenicity and safety of modified process hepatitis B vaccine administered to renal predialysis and dialysis patients

DTaP-HB-PRP~T combined vaccine is being developed in order to comply with expanding programs for immunization in infancy, while offering the benefit of a reduced number of injections, and potentially of an increased acceptance. Primary Objectives: To describe the antibody persistence at 12 to 18 months following a three-dose primary series vaccination of either DTaP-HB-PRP~T or Tritanrix-Hep B/Hib™ given at 6, 10 and 14 weeks of age, and one dose of Hepatitis B (Hep B) vaccine given at birth. To describe the effect of a booster dose of DTaP-HB-PRP~T on immunogenicity at 12 to 18 months following a three-dose primary series vaccination of either DTaP-HB-PRP~T or Tritanrix HepB/Hib™ given at 6, 10 and 14 weeks of age, and one dose of Hep B vaccine given at birth. Secondary Objective: To describe the safety profile of the booster dose of the DTaP-HB-PRP~T vaccine when administered concomitantly with Oral Polio Vaccine (OPV).