View clinical trials related to Hepatitis A.
Filter by:The purpose of the study is to evaluate if continuous subcutaneous delivery of interferon alfa-2b using an external drug pump in combination with the use of oral ribavirin provides a safe and effective treatment for patients with chronic hepatitis C infection as compared to patients who receive standard treatment.
Currently, peginterferon alfa-2a or oral nucleos(t)ides are approved for the treatment with HBeAg negative CHB, with the overall ALT normalization and HBV viral suppression far from satisfactory. Therefore, efforts on the various combinations with the currently available drugs are needed to improve the overall response rates. The simultaneous combination therapy with oral nucleoside and peginterferon alfa-2a from large-scaled randomized trials did not show a superior response rate over peginterferon alfa-2a monotherapy. Recently, sequential monotherapy with lamivudine for the first 4 weeks, followed by weekly peginterferon alfa-2a has shown favorable HBeAg seroconversion rate over peginterferon alfa-2a monotherapy, based on the assumption that early viral suppression by lamivudine can restore the immune function to facilitate the later immunomodulatory response by peginterferon alfa-2a. Furthermore, prior studies using 24 months of standard interferon alfa showed better ALT normalization and HBV suppression rates to 12 months of therapy. With the recent introduction of entecavir, the more potent oral nucleoside with few drug resistance, sequential monotherapy with entecavir can potently suppress HBV DNA with 4 weeks of treatment, which may facilitate the response of peginterferon alfa-2a to achieve HBV viral suppression. Therefore, we aimed to conduct a placebo controlled randomized control trial to evaluate if adding entecavir early in the course of therapy or extending the treatment duration of peginterferon alfa-2a can improve the treatment response.
Interferon-based monotherapy has been considered effective to treat acute hepatitis C in ordinary patients. However, the efficacy of this treatment has not been evaluated in prospective interventional studies for dialysis patients. The aim of the study is the evaluate the efficacy of peginterferon alfa-2a monotherapy for 24 weeks in this special clinical setting, and concomitantly evaluate retrospectively the dialysis patients with acute hepatitis C who did not receive intervention as the reference.
Little is known about the nature and extent of the disturbance in hepatic function and biliary hepatic clearance in chronic viral hepatitis, while the course of this disease, the functional implications and response to treatment are difficult to predict. This study aims to assess this in patients with chronic viral hepatitis B (CHB) and chronic viral hepatitis C (CHC) who are eligible for treatment in accordance with the established consensus guidelines in the involved countries. The pharmacokinetics of NRL972 will be determined at baseline (within one month of starting treatment), at 3-monthly intervals during treatment, for up to 12 months (or at the end of treatment), and at 3 and 6 months after the end on treatment. This will provide a clearer understanding regarding the use of the pharmacokinetics of NRL972 in detecting changes in biliary clearance during and after treatment for CHB and CHC.
Background: - Liver cancer is the third most deadly and fifth most common cancer worldwide. Hepatocellular carcinoma (HCC) is the most frequent primary liver cancer, and it has grown more prevalent in the United States. - More information is needed about the causes and effects of liver cancer, and further research into individuals who are at high risk for developing liver cancer is needed for early diagnosis and prevention. Objectives: - To identify genetic factors that may help to explain the aggressiveness of liver cancer. - To determine if HCC biomarkers exist in blood, urine, and tissue samples. Eligibility: - Patients between the ages of 18 and 90 who have been diagnosed with HCC or have a high risk for developing HCC because of fatty liver disease (alcohol-related or non-alcohol-related) or chronic hepatitis B or C. - Participants will reside in Baltimore City and the surrounding areas. Design: - Participants will complete a questionnaire and provide blood and urine samples for testing: - The questionnaire will include questions about individual and family medical history, tobacco use, and exposure to known factors for liver cancer. - Blood and urine samples will be collected from all participants after the questionnaire. - Tumor tissue and healthy tissue will be collected from selected participants if they undergo surgery for their cancer or disease. - No specific treatment will be offered as part of this protocol, but participants have the option to be treated under different protocols.
The purpose of this study is to assess antiviral activity when administered alone for 3 days or in combination with peginterferon and ribavirin for 12 weeks. This study will also evaluate the safety and tolerability of treatment with VCH-222 when given alone or in combination with peginterferon and ribavirin. The study will also evaluate the pharmacokinetic profile of VCH-222 in HCV infected subjects.
The purpose of the study is to investigate if the duration of treatment of hepatitis C with pegylated interferon and ribavirin can be individualized on the basis of how fast the hepatitis C virus concentration in the blood decreases, and if this is more cost-efficient than standard treatment.
This is a single-arm, multicenter study of boceprevir (BOC) in combination with peginterferon plus ribavirin (PEG/RBV) in adult chronic hepatitis C (CHC) genotype 1 participants who completed their per-protocol defined treatment and did not achieve sustained viral response (SVR) while in the PEG/RBV control arm(s) of an Schering-Plough Research Institute (SPRI) study of BOC combination therapy. Participants who are able to enroll in this study within 2 weeks after the last dose of PEG/RBV in previous protocol are to receive BOC+ PEG/RBV for up to 44 weeks followed by 24 weeks post-treatment follow-up. Participants who are not able to enroll in this study within 2 weeks after the last dose of PEG/RBV in previous protocol are to receive PEG/RBV for 4 weeks followed by BOC+ PEG/RBV for up to 44 weeks, with 24 weeks post-treatment follow-up.
The purpose of this study is to investigate T-cell mediated immune responses to HIV-1 and HCV and determine how these responses are affected by HCV treatment and correlates to response. Furthermore, to study Interferon-inducible protein-10 (IP-10) dynamics during HCV treatment, and correlate this to treatment outcome.
This is a Phase I, open-label, single-dose study to evaluate the pharmacokinetics and safety of LDT600 in pediatric and adolescent patients with chronic hepatitis B infection.