Active clinical trials for "Hepatitis A"

The purpose of this clinical research study is to assess the safety and effectiveness of entecavir, as compared to lamivudine, in the treatment of adults with chronic hepatitis B infection who are hepatitis B e antigen negative.

The purpose of the study is to evaluate the efficacy and safety of Albuferon in combination with ribavirin in interferon (IFN) alfa treatment-naïve subjects with chronic hepatitis C genotype 1. The study will randomize subjects to 1 of 4 treatment groups including 3 different Albuferon groups or to the active control group, peginterferon alfa-2a (PEGASYS, PEG-IFNalfa-2a). All subjects will also receive oral daily ribavirin.

This study is designed to compare the safety, tolerability and antiviral effects of omega interferon administered alone to omega interferon administered with ribavirin in the treatment of subjects with chronic Hepatitis C virus (HCV) infection.

The objective is to compare the safety and efficacy of the following three treatment regimens in previously untreated adult subjects with chronic hepatitis C infected with Genotype 1: (1) PegIntron 1.5 µg/kg/wk in combination with weight based REBETOL (800-1400 mg/day); (2) PegIntron 1µg/kg/wk in combination with weight based REBETOL (800-1400 mg/day); and (3) PEGASYS 180 µg/wk plus COPEGUS 1000-1200 mg/day.

This study will evaluate the safety and effectiveness of combination therapy with peginterferon alpha-2a and ribavirin for treating hepatitis C virus (HCV) infection in HIV-infected patients. Peginterferon alpha with ribavirin is the therapy of choice for people with HCV alone. Peginterferon alpha-2a is a compound that results from attaching a polyethylene glycol molecule to interferon alpha-2a. This compound stays in the blood longer than unmodified interferon alpha-2a, causing a higher blood concentration and thus maintaining greater activity against the hepatitis C virus. HIV-infected patients 18 years of age and older with chronic hepatitis C infection and a viral load greater than 2000 copies/mL may be eligible for this 2-1/2 year study. Candidates are screened with a medical history and physical examination, blood and urine tests, eye examination, chest x-ray, electrocardiogram (EKG), liver ultrasound, and pregnancy test in women who are able to become pregnant. If a recent liver biopsy is not available, this test is done to determine the type and severity of liver disease. The patient is given a sedative before the procedure. Then, the skin in the area over the biopsy site is numbed with a local anesthetic and a needle is inserted rapidly into and out of the liver to obtain a small tissue sample. The patient remains in the hospital overnight for monitoring. Participants begin treatment with injections under the skin of peginterferon alpha-2a and ribavirin pills by mouth on study day 0. Peginterferon is given either once or twice a week for 4 weeks and then once a week for 44 weeks. Ribavirin is given daily. In addition, patients continue to take all other medications prescribed by their doctor. Clinic visits are scheduled for the following procedures: Days 1, 3, 4, 7, 10 and weeks 2, 3, and 4 - Blood tests for safety measures and to measure blood levels of HIV and HCV. Weeks 6, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44 - Blood and urine tests to determine the side effects of treatment and its effect on the HCV infection. In addition, eye examinations are done every 3 months, and pregnancy and thyroid function tests are done several times during the treatment period. Week 48 or end of treatment - Treatment stops after 48 weeks. At this time, or earlier for those who do not complete the 48 weeks, patients return to the clinic for a chest x-ray, EKG, blood tests, and abdominal ultrasound. Patients are hospitalized for a repeat liver biopsy. Weeks 52, 56, 64 and 72 - Blood and urine tests to determine the side effects of treatment and its effect on the HCV infection, and a urine pregnancy test in women.

This Phase 3 clinical study is designed to evaluate the safety, tolerability, and efficacy of two dose levels of Infergen (interferon alfacon-1, CIFN) plus Ribavirin administered daily for 48 weeks and no treatment in patients chronically infected with hepatitis C who are nonresponders to previous pegylated interferon alfa plus ribavirin therapy. Patients are randomized 1:1:1 to receive Interferon Alfacon-1 (9 or 15 µg) + Ribavirin (both administered daily) or no treatment for up to 48 weeks. The protocol and informed consent form that will be used must be approved by the Investigator's Institutional Review Board (IRB)/Independent Ethics Committee (IEC) before the study is initiated.

This study will evaluate the safety and tolerability of PEGASYS plus ribavirin in previous intravenous (iv) drug users who have CHC and are currently enrolled in a methadone maintenance treatment program. The anticipated time on study treatment is 1-2 years, and the target sample size is <100 individuals.

This Phase II study is being conducted in treatment-naive patients (no previous antiviral therapy for Hepatitis C infection) with genotype-1 chronic hepatitis C to evaluate the safety and effectiveness of valopicitabine alone and together with Pegylated Interferon (a drug approved by the Food and Drug Administration for the treatment of Hepatitis C infection).

The aim of this study is to prove the efficacy of peginterferon in HIV infected patients with liver disease caused by hepatitis C virus (HCV) when the treatment to eradicate the virus failed. This scientific proof needs a comparative study to be done including two groups of patients randomly allocated: one with the treatment (peginterferon) and the other without any treatment against HCV with a duration of 2 years. To conclude, two liver biopsies are needed; one before the study and a second 2 years after.

This is a phase IIIb comparative study of entecavir 1.0 mg once daily (QD) vs. adefovir 10 mg QD in patients who have chronic hepatitis B infection and hepatic decompensation. The patients are treated for 96 weeks after the last subject is randomized.