View clinical trials related to Hepatitis A.
Filter by:This is a Phase 2b, Randomized, Double-Blind, Placebo-Controlled Trial Evaluating Response Guided Therapy with GS-5885 Alone or in Combination with GS-9451 with Peginterferon Alfa 2a and Ribavirin in Treatment Naïve Subjects with Chronic Genotype 1 Hepatitis C Virus Infection.
A lot of elderly people travel to hepatitis A endemic areas. The prevalence of hepatitis A IgG positivity is declining in the Netherlands, also in the elderly. Studies show that people above 40 years of age have a slower immune response to hepatitis A vaccination. However, a lot of travelers seek pre-travel advice only shortly before their journey. More information about the time to adequate antibody response after hepatitis A vaccination is required to provide good protection during travelling. Alternative protection with immunoglobulins are available. Study design: Observational, longitudinal pilot study Study population: 20 adults over 60 years of age with a negative hepatitis A IgG, (with a estimated 50% positivity for hepatitis A IgG in this age Group, 40 patients in this age group) 20 adults 18-40 years of age as controls. Intervention (if applicable): When hepatitis A vaccination is indicated and informed consent is obtained, hepatitis A IgG wil be measured at day 0, 7, 14, 21 en 28. Main study parameters/endpoints: Time to protective hepatitis A IgG. Nature and extent of the burden and risks associated with participation, benefit and group relatedness: hepatitis A vaccination will be given also outside this study. In the study 5 venous punctures of 7 ml of blood.
This study will evaluate the safety, tolerability, and antiviral activity of grazoprevir (MK-5172) when administered in combination with peginterferon alfa-2b (Peg-IFN) and ribavirin (RBV) in treatment-naïve (TN) participants with chronic hepatitis C.
This study evaluates the immunogenicity and safety of Infanrix hexa™ (DTPa-HBV-IPV/Hib) when administered as a primary vaccination course to Indian infants according to a 6-10-14 weeks or a 2-4-6 months schedule.
The purpose of this phase 2 study is to determine whether 30 mg or 90 mg of GS-5885 when given with GS-9451, Tegobuvir and Ribavirin (RBV) for 12 or 24 weeks is effective, safe and tolerable in the treatment of Chronic Genotype 1 HCV Infection.
Background: - Hepatitis B and hepatitis C can cause liver damage. They can also cause serious illness, including liver cancer, and even death. This study will follow people who have hepatitis B or hepatitis C. The purpose is to understand more about how these viruses affect the immune system over the long term (up to 10 years). The study will also compare how these viruses affect people who do and do not have HIV, the virus that causes AIDS. Objectives: - To do a long-term study of hepatitis B and hepatitis C infection. - To study the effects of hepatitis B and hepatitis C infection in people do and do not have HIV. Eligibility: - People at least 18 years of age who have hepatitis B or hepatitis C and have a regular doctor for their medical care. Design: - Participants will be screened with a physical exam and medical history. Those who do not have a regular doctor to provide medical care during the study will not be able to take part. - Participants will have yearly visits with study researchers for up to 10 years. These tests will be done at each visit. - Medical history and physical exam. - Questionnaire (optional) on emotions, sexual behaviors, use of alcohol and drugs, and quality of life. - Blood and urine tests, including HIV testing. - Tissue sample collections for those who have had a liver or other tissue biopsy. - Participants may leave the study at any time. They will receive the standard of care from their regular doctor throughout the study.
This is a study to test whether vaccination with HAVpur Junior against hepatitis A provides protection that is non-inferior to the protection afforded by vaccination with Havrix 720 Junior.
The purpose of this study is to investigate TMC435 for the treatment of chronic hepatitis C virus (HCV) infection.
The primary purpose of this study is to determine whether HepavaxGene TF is non-inferior to the comparator vaccine both at impeding hepatitis B transmission from mothers positive for chronic hepatitis B (Stratum 1) to their children and also in terms of seroconversion rate in children of mothers negative for chronic hepatitis B (Stratum 2) one month after completion of the immunization schedule.
This observational study will assess factors leading to dose reductions/treatment discontinuations and the effect on sustained virological response in patients with chronic hepatitis C receiving a long-acting interferon (e.g. Pegasys/peginterferon alfa-2a) and ribavirin. Data will be collected from each patient for the duration of their treatment and for up to 6 months thereafter.