
To Assess Neuroinflammation and Neurocognitive Function in Patients With Acute Hepatitis C and Chronic...
Acute Hepatitis CHIV1 moreThis study plans to evaluate what happens to the brain in patients with HIV and early hepatitis C. The investigators will be comparing 3 groups of individuals: Group 1: Individuals with HIV infection and acute (early) hepatitis C infection Group 2: Individuals with HIV infection Group 3: Healthy volunteers

Observational Study of Patients With Chronic Hepatitis C Virus (HCV) Infected With HCV Genotype...
Hepatitis CThe purpose of this observational study was to provide summary data from participants who relapsed at the end of the follow-up phase after 24 weeks of treatment with standard care PegIntron plus ribavirin in Part 1 of the study (NCT00709228) and who then received retreatment during Part 2 of the study. Relapse was defined as having a positive virology result at the Week 24 post-treatment follow-up, after a negative result at the Week 24 end-of-treatment time point. Hepatitis C Virus Ribonucleic Acid (HCV-RNA) levels were measured at Day 1 and Weeks 12, 24, and 48 of the extension, and at Follow-up Week 24.

Potential for Drug-drug Interactions Between Boceprevir and Etravirine in HIV/Hepatitis C Virus...
Hepatitis CHIVThe investigators believe that boceprevir's drug concentrations will be reduced when administered in combination with etravirine. The investigators believe that etravirine's drug concentrations will be increased when administered in combination with boceprevir. Additionally, the investigators believe that boceprevir and etravirine are safe when administered alone or in combination.

Comparison of Plasma & SMARTplasma for Human Immunodeficiency Virus (HIV) and Hepatitis C Virus...
Human Immunodeficiency Virus InfectionHepatitis CThe purpose of this study is to compare the results for HIV and/or Hepatitis C Virus antibody testing when using routine plasma versus SMARTplasma from the same blood sample. SMARTplasma is enriched for antibodies via a stimulation step of whole blood in a SMARTube™ (SMARTstim™ in the USA).

Management of Hepatitis C in HIV Infected Injection Drug Users (IDUs)
HIV InfectionHepatitis CThe principal goal of this research project is to evaluate the natural history of HCV and liver disease and its treatment in HIV-infected persons who use drugs. Research procedures will focus on determining liver disease prevalence and severity within this population. This is an observational study without study specific interventions.

A Video-Based HCV Curriculum for Active Injection Drug Users
Hepatitis COpiate DependenceThe investigators hypothesize that a well-designed hepatitis C (HCV) video education curriculum for active drug injectors will lead to measurable improvements in HCV testing rates, HAV and HBV vaccination rates, as well as knowledge and attitudes about this condition. The investigators will use a short 10 minute video designed for active drug users to and assess its impact vs. a usual-care counseling intervention. The investigators will measure and compare its impact at baseline, 4 weeks after video viewing, and 12 weeks after intervention.

Comparing Single Photon Emission Computed Tomography (SPECT) and Liver Biopsy to Evaluate the Liver...
HIV InfectionsHepatitis CThe purpose of this study is to find if the Single Photon Emission Computed Tomography (SPECT) scan is as effective as a liver biopsy (using a special needle to remove tissue from the liver) in examining liver damage in patients with HIV and hepatitis C virus (HCV). A standard way to examine the liver for disease has been to perform a liver biopsy. The SPECT scan, which takes a picture of the liver, has been found to be effective in determining liver damage but studies need to be done in patients with hepatitis. This study will compare the effectiveness of the liver biopsy and SPECT scan in determining liver disease in patients with HIV and HCV. The SPECT scan might be a good replacement for the liver biopsy if it is found to be as good as or better than liver biopsies.

Prevalence of Hepatitis C Virus Infection in HIV-Infected Children
HIV InfectionsHepatitis CThe purpose of this study is to find out how many children who are infected with HIV are also infected with hepatitis C virus (HCV). HCV infection is a major health concern. HIV-infected adults who are co-infected with HCV appear to have more rapid HIV disease progression. There is little data on how widespread HCV is among children who are HIV-infected. Information from this study will help determine the need for future HCV studies. This study also will obtain blood samples for future testing for other hepatitis viruses such as hepatitis G virus (HGV or GB virus C).

Hepatitis C in Clinically Discordant Hemophilic Siblings
Blood DiseaseHemophilia A3 moreTo define the natural history, immunologic, and genetic factors that influence the clinical outcome of hepatitis C in a cohort of hemophilic siblings.

Hepatitis B Virus Prevalence and Risk Factors in Belgium
Hepatitis BThe aim of this study was to evaluate the current prevalence and risk factors of hepatitis B virus (HBV) infection in a multi-ethnic neighbourhood situated in Middle Limburg, Belgium. Additionally, the investigators will determine linkage of care in hepatitis B surface antigen (HBsAg) positive subjects.