Active clinical trials for "Hepatitis A"

Drug users account for a disproportionately large burden of hepatitis C virus (HCV) infection. However, HCV treatment adherence rates in drug users may be suboptimal in patients who use drugs regularly during HCV treatment. Because HCV treatment is most effective when patients adhere to at least 80% of the prescribed treatment regimen, interventions to improve HCV treatment adherence need to be developed and evaluated. The investigators designed the HCV DOT trial to test the efficacy of two versions of modified directly observed HCV therapy provided on-site at a methadone clinic. The primary objective of this trial is to determine whether enhanced DOT with both pegylated interferon alfa-2a plus ribavirin (PEG/RBV-DOT) is more efficacious than standard DOT with weekly provider-administered pegylated interferon (PEG-DOT) and self-administered ribavirin for increasing adherence and improving HCV treatment outcomes. The investigators hypothesize that PEG/RBV-DOT is associated with increased adherence and rates of sustained viral response compared with PEG-DOT.

The purpose of this study is to evaluate the efficacy and safety of once-daily treatment with GSK548470 300 mg in Japanese patients with compensated chronic hepatitis B with poor response to other drugs.

Hepatitis C virus (HCV) infection is a leading cause of death and illness in people with HIV-1. At the time the study was designed, the standard treatment for people with HIV-1 and HCV coinfection included two drugs: pegylated-interferon alfa 2b (PEG-IFN) and ribavirin (RBV). The purpose of this study was to evaluate the effectiveness of giving boceprevir (BOC) together with standard treatment in treating HCV infection in people with HIV-1 and HCV coinfection.

Background: - GS-7977, GS-5885, GS-9669, and GS-9451 are new drugs for treating hepatitis C virus (HCV) infection. GS-7977 may help treat the infection when used with other treatments like interferon therapy. GS-5885, and GS-9669, and GS-9451 also lower the amount of HCV in the body. Researchers want to see whether GS-7977 can be combined with any of the other three drugs to treat HCV infection. Some participants will take GS-7977 and GS-5885. Others will take GS-7977, GS-5885 and GS-9669 or GS-7977, GS-5885 and GS-9451. Objectives: - To see whether GS-7977 with GS-5885 alone or in combination with either GS-9669 or 9451 can be used to treat HCV infection. Eligibility: Individuals at least 18 years of age who have chronic HCV infection and have never been treated for it. Individuals at least 18 years of age who have chronic HCV infection and have not responded to interferon therapy. Individuals at least 18 years of age who have chronic HCV infection with advanced liver disease and have never been treated for HCV Design: Participants will be screened with a physical exam and medical history. Blood samples will be collected. A liver biopsy may also be performed. Some participants will take the two study drugs and some will take three study drugs. Those who take GS-7977 and GS-5885 will have one daily tablet named fixed dose combination or FDC. Those who take GS-7977 and CS-9669 will have three daily tablets taken once daily. Those who take GS-7977 and GS-5885 and GS-9451 will take 2 pills once a day. GS-7977 and GS-5885 will be combined in one pill and GS-9451 will be in another pill. Treatment will be monitored with frequent blood tests. These tests will check liver function and the level of HCV infection. Participants may have other blood tests as needed for treatment. Participants will have 4, 6 or 12 weeks of treatment depending on which study drugs are scheduled to take. After they complete their schedule, they will stop treatment with the study drugs. They may also have another liver biopsy. Participants will have regular follow-up visits over the next 48 weeks. They will have physical exams and provide blood samples....

This is an expanded access programme to make Pegasys (peginterferon alfa-2a) available to patients with HBeAg-negative chronic hepatitis B in Morocco. Patients will receive Pegasys 180 mcg subcutaneously weekly for 48 weeks and efficacy and safety will be recorded during treatment and for 24 weeks of follow-up.

This study will evaluate the efficacy and safety of MP-424 with PEG-IFN Alfa-2a and RBV in patients with genotype 1 hepatitis C, who are naïve to its treatment or relapsed after previous treatment.

This study will evaluate the efficacy and safety of MP-424 with IFN beta and RBV in patients with genotype 1/2 hepatitis C, who are treatment-naïve or have received its treatment before.

This Phase II, open-label, parallel-arm study will evaluate the safety, tolerability, pharmacokinetics and antiviral activity of ritonavir-boosted danoprevir in combination with Pegasys (peginterferon alfa-2a) and Copegus (ribavirin) in treatment-naïve patients of Asian origin with chronic hepatitis C genotype 1. Patients will receive danoprevir 125 mg plus ritonavir 100 mg as fixed dose tablet orally twice daily in combination with weekly Pegasys 180 mcg subcutaneously and Copegus 1000-1200 mg orally daily in divided doses. Treatment duration is 12 weeks in patients without cirrhosis and 24 weeks in patients with compensated cirrhosis.

Egypt has the highest prevalence of hepatitis C virus infection in adults (up to 20%) and children (up to 5.5%). The major genotype (90%) is type 4. Pegylated interferon-alpha-2a or -2b and ribavirin have been used in small numbers of hepatitis C virus-infected children with sustained virological response being higher in genotypes 2 and 3 than in genotypes 1 and 4. Genotype 4 is has been described as difficult-to-treat genotype. Several attempts to modify treatment protocols have been tried in adults in an attempt to achieve higher rates of sustained virological response. Shortening injection interval and/or treatment duration prolongation have been tried with variable outcome reports. A novel Hansenula- derived pegylated interferon alpha 2a: 20 Kilo dalton (Reiferon Retard) has been used over the last 4 years in the Egyptian market. We aimed to investigate the safety and efficacy of Reiferon retard plus ribavirin customized regimen in hepatitis C virus-RNA seropositive Egyptian children. Forty six children with chronic hepatitis C virus aged 3-19 years were selected from 3 hepatic tertiary centers. Clinical and laboratory evaluation were undertaken. Quantitative polymerase chain reaction (PCR) for HCV-RNA was done before starting treatment, at 4, 12, 24, 48, 72 weeks during treatment and 6 months after stoppage of treatment. All patients were assigned to receive a weekly subcutaneous injection of pegylated interferon alpha 2-a ( Reiferon Retard) plus oral Ribavirin daily for 12 weeks ,then cases were divided according to PCR results into 2 groups. Group I: Patients who continued treatment on weekly basis: this group included patients who had negative PCR at week 12 as well those who had positive PCR without any change in viremia. Group II: Patients who continued treatment on a 5- days schedule: this group included patients who had any decrease in viremia at week 12. Patients who were PCR-negative at week 48 and had at least one PCR-positive test during therapy were assigned to have an extended treatment course of 6 months duration. The occurrence of adverse effects was assessed during treatment and follow up

The purpose of this study is to show that the combination of entecavir and tenofovir, is effective and well tolerated in chronic hepatitis B patients who have failed previous treatment.