View clinical trials related to Hepatitis A.
Filter by:Hepatitis C infection is a major public health problem with nearly 175 million infected individuals worldwide. Although cure is possible, only 20-40% of patients spontaneously resolve infection and 40-80% of chronically infected patients (numbers vary depending on viral genotype) that receive pegylated-interferon-alfa2a/ribavirin therapy clear the virus and are sustained virologic responders (SVR). Still for many, the virus manages to circumvent natural immunity and current therapeutic strategies, resulting in significant morbidity and mortality. To better define the distinct clinical outcomes of HCV infection many investigators have performed candidate molecules screens or transcriptional profiling in order to identify correlates of viral clearance. One molecule that has gained significant attention is CXCL10 (also known as interferon-gamma induced protein-10 or IP-10) as an important negative prognostic biomarker. Given that CXCL10 is produced by hepatocytes and mediates chemo-attraction of activated lymphocytes expressing the CXCL10-receptor, CXCR3, it is counter-intuitive as to why this chemokine correlates with therapeutic non-responsiveness. The investigators hypothesized and have now demonstrated that CXCL10 is being cleaved in situ, resulting in the generation of an antagonist form of the chemokine. Based on the use of specific inhibitors, the investigators now propose to test whether protection of the agonist form of CXCL10 will increase responsiveness to peg-IFN-alfa2 / ribavirin therapy. This can be achieved using DPPIV inhibitors, targeting the enzyme responsible for N-terminal truncation of CXCL10. If safety is confirmed, the efficacy of DPPIV-inhibition in HCV patients will be tested in future trials that examine potential clearance benefits.
This study consists of 2 parts, Part A and Part B. Part A, the Phase 1 drug interaction/early viral kinetic study, will evaluate the effect of selected antiretroviral therapies on the safety, viral kinetics, and pharmacokinetics of sofosbuvir (GS-7977; PSI-7977) and its metabolites in participants with HIV and hepatitis C virus (HCV) coinfection. Part B, the Phase 2 treatment study, will investigate the efficacy and safety of sofosbuvir, pegylated interferon alpha (PEG) and ribavirin (RBV) in participants with HIV/HCV coinfection.
This study will test the safety and tolerability of HCV Entry Inhibitor ITX 5061 in Liver Transplant Recipients with Hepatitis C infection. The investigators hypothesize that ITX 5061 oral monotherapy will be safe in adults during and after liver transplantation and that therapy will also inhibit HCV infection of newly transplanted livers in adults with prior HCV infection.
The primary objective is to determine if the administration of a combination of sofosbuvir (SOF; GS-7977; PSI-7977) and ribavirin (RBV) to HCV-infected subjects with hepatocellular carcinoma (HCC) meeting the MILAN criteria prior to undergoing liver transplantation for up to 24 weeks can prevent post-transplant re-infection as determined by a sustained post-transplant virological response (HCV RNA < LLoQ) at 12 weeks post-transplant. Participants will enroll in the pretransplant treatment phase (24 or 48 weeks). Participants enrolling for 24 weeks in the pretransplant treatment phase may receive treatment for up to an additional 24 weeks in the pretransplant retreatment phase. Participants enrolling for 48 weeks in the pretransplant treatment will have a second baseline at Week 24 for combined analysis in the pretransplant retreatment phase. Participants who undergo liver transplant will stop all study drug 24 hours prior to transplant, and enter a 48-week follow-up phase to monitor for recurrent HCV infection.
This study is being done to assess the safety, pharmacokinetics (PK) and pharmacodynamics (PD) of MK-8325 in male hepatitis C virus (HCV)-infected participants. There will be 3 parts to this study. Part I will enroll only genotype 1 (GT1) HCV patients, Part II will enroll only genotype 3 (GT3) HCV-infected participants, and Part III will enroll only GT1a HCV-infected participants. All parts may run concurrently, or may be staggered as needed by the clinical sites.
This randomized, double-blind, placebo-controlled, 3-part study will assess the safety, tolerability, and pharmacokinetics of orally administered ALS-002158 in healthy volunteers (HV) and subjects with chronic hepatitis C (CHC) genotype 1 infection. Part 1 will assess single ascending dosing pharmacokinetics and safety in HV. Part 2 will assess food effects on pharmacokinetics in HV. Part 3 will assess multiple ascending dosing pharmacokinetics and safety in subjects with CHC genotype 1 infection.
The purpose of this study is to determine whether short-term Atorvastatin can increase the immunity response to hepatitis B vaccination in vaccine Nonresponders.
This study is divided into 2 segments, and proposes to qualify fine needle aspiration (FNA) as a platform to evaluate the hepatic pharmacokinetics of low and high oral doses of Grazoprevir (MK-5172) in non-cirrhotic participants chronically infected with hepatitis C virus (HCV). The first segment, is a procedural pilot conducted prior to the main study, that is aimed at ensuring optimal execution of the FNA procedure. During the procedural pilot, core needle biopsy (CNB) will be performed on participants as part of their standard of care, but no study drugs will be administered, nor will any procedures other than FNA be conducted. The second segment, the main study, is designed to evaluate the feasibility of measuring Grazoprevir by FNA. During the main study, drugs will be administered, and other additional procedures will be conducted.
An prospective / retrospective multicenter observational study whose objectives are to understand the interactions between hepatitis c virus and Non Hodgkin lymphomas. The characteristics , evolution and treatment of diseases will be observed from the study.
This is an observational prospective follow-up study to assess the utilization of Boceprevir and the management of pre-specified health outcomes of interest (HOIs) under conditions of routine clinical care.