Active clinical trials for "Hepatitis C, Chronic"

The purpose of this study is to evaluate the safety and efficacy of ombitasvir/paritaprevir/ritonavir (OBV/PTV/r), with or without dasabuvir (DSV) coadministered with or without ribavirin (RBV) for 12 or 24 weeks in adult patients with genotype 1 or genotype 4 chronic HCV infection and treated early stage Hepatocellular Carcinoma with compensated cirrhosis.

This is a Phase 1, randomized, double-blind, placebo-controlled, first-in-human, 3-part study in which the safety, tolerability, and pharmacokinetics of orally administered AL-704 will be assessed in healthy adult subjects and in adult subjects with CHC infection. Part 1: Healthy adult subjects will receive one of 5 single ascending oral doses (SAD) of AL-704 ranging from 100 mg to 1,500 mg (Cohorts 1 to 5). Within each cohort subjects will be randomized to receive either AL-704 or placebo (n=8 per cohort; 6 assigned to AL-704 and 2 assigned to placebo), in a fasted state. The planned dose-escalation scheme may be changed based on the emerging PK and safety data. Two additional cohorts (Cohorts 6 and 7) may be enrolled for evaluation of additional doses at the discretion of the Sponsor and Investigator, based on the emerging pharmacokinetic (PK) profile, and the presence of an acceptable safety profile. Part 2: To assess the food effect on pharmacokinetics, 8 healthy subjects from one full Part 1 cohort who received a single dose of AL-704 or placebo in a fasted state, will receive the same single dose of AL-704 or placebo in a fed state in Part 2 after a washout period of 7-14 days (depending on PK results). It is expected that Cohort 3 of Part 1 (600 mg dose) will be selected, however this depends on the evaluation of available PK and safety data from Part 1 of the study. Part 3: The following cohorts of 10 adult subjects each, with CHC infection, will be evaluated. Subjects with CHC genotype 1 infection (Cohorts 8 to 10) and subjects with CHC genotype 3 infection (Cohort 11) will be randomized to receive AL-704 or placebo for 7 consecutive days (n=10 per cohort, 8 assigned to AL-704 and 2 assigned to placebo) in a fed state. The treatment is anticipated to be administered in a once daily dose regimen or a twice daily dose regimen. The dose and dose regimen to be administered will be determined by the Sponsor depending on the PK and safety outcomes of previous cohorts.

The purpose of this study is to evaluate daclatasvir in combination with sofosbuvir given to children with chronic hepatitis C infection

The purpose of this study is to evaluate whether treatment with Epclusa (sofosbuvir/velpatasvir) after lung transplantation in individuals with chronic hepatitis C infection is feasible, safe and effective at curing HCV.

In this study we intend to treat patients with chronic hepatitis C of genotype 2 or 3 having characteristics associated with poor treatment response for additional 12 or 24 weeks beyond the standard treatment of PEG-IFN alpha-2b plus ribavirin. The objective of this study is to compare the efficacy of a treatment extension of 12 versus 24 weeks in patients with HCV-genotypes 2 and 3 who are treated with 1.5 µg/kg PEG-IFN alpha-2b and 800-1400 mg ribavirin (standard dose) for 24 weeks (standard duration) and who are not HCV-RNA negative (< 15 IU/ml) after 4 weeks of standard treatment but HCV-RNA negative after 16-24 weeks of standard treatment.

The purpose of this study is to evaluate the effect of 48 vs 24 weeks of treatment with Peginterferon alfa-2b plus weight-based ribavirin on Sustained Virologic Response (SVR) and relapse rates in patients infected with genotype 3 chronic hepatitis C (CHC) who do not achieve a Rapid Virologic Response (RVR) but attain a complete Early Virologic Response (cEVR).

In the current era of highly effective direct acting antiviral (DAA) therapy, the remaining obstacles to elimination of chronic HCV infection are identification of the high-risk groups, linkage to continued care and prevention of re-infection. It is estimated that 70-80% of patients with chronic HCV are unaware of their infection. Besides, public health education is limited and most patients are not aware that the current standard-of-care is highly effective, well tolerated and no longer require weekly subcutaneous injections. From a survey in Hong Kong in 2014, among 234 newly diagnosed HCV patients, only 20% agreed to undergo treatment. There is no universal screening programme for chronic hepatitis C infection in Hong Kong. and known high-risk patients include people who inject drugs (PWID), persons with certain medical conditions including those on hemodialysis, HIV infected, those with prior transfusion or organ transplantation. In this study, the investigators plan to reach out to PWIDs, people with substance abuse or prison inmates to provide rapid point-of-care screening for chronic hepatitis C infection, and to provide linkage to care for those diagnosed with chronic hepatitis C.

Grazoprevir/elbasvir combination therapy is highly effective in the treatment of genotype 1b chronic hepatitis C, and the drug-drug interaction with central immunosuppressant, such as tacrolimus, should be manageable. The aim of this study is to assess the efficacy and tolerability of grazoprevir/elbasvir combination therapy in treating genotype 1b chronic hepatitis C after liver or kidney transplantation.

To address the need for more affordable hepatitis C virus (HCV) antivirals with high barriers to viral resistance and strategies to shorten the current treatment duration, the goal is to develop affordable therapeutic regimens to prevent HCV entry/spread and test the efficacy of those inhibitors for treating HCV infection. The investigators recently discovered that a major cholesterol uptake receptor is required for HCV entry into hepatocytes and that there is already an FDA-approved drug that inhibits cholesterol uptake by this receptor. Importantly the same drug also potently blocks HCV entry in human liver cells both in cell culture and in a small animal model. Further, looking back at people who were previously treated for HCV infection, the investigators found treatment response to be better (i.e. larger viral log reduction) in patients who happened to be taking ezetimibe (EZE). Hence, the objective of this study is to assess whether the FDA-approved drug (ezetimibe) is useful for the treatment of chronic HCV. The investigators predict that when administered as monotherapy ezetimibe will reduce HCV viremia perhaps allowing for viral clearance and that when included in combination treatment regimens that EZE will increase HCV decline resulting in faster viral clearance (i.e. shorter/cheaper direct-acting antiviral [DAA] therapy). To test these hypotheses, the investigators will execute the following aims: (1) Assess the efficacy of EZE monotherapy in chronically HCV infected and predict time to cure; (2) Assess the efficacy of EZE as an adjunct therapy in chronically HCV infected patients undergoing currently approved HCV DAA treatment.

This is a 1:1 randomized double-blind Placebo-controlled moncenter Phase IV study to investigate whether a successful interferon-free treatment of HCV-infection with ombitasvir/paritaprevir/ritonavir (OBV/PTV/r) in combination with dasabuvir (DSV) improves the patients' attention ability as compared to placebo as measured with the Att Test Sum Score change from baseline to week 12. A total of 30 patients with non-cirrhotic genotype 1b HCV infection will be randomly assigned to receive 12 weeks verum followed by 12 weeks Placebo (arm A) versus 12 weeks Placebo followed by 12 weeks verum (arm B). Patients will be followed up for 48 weeks.