
Extension Study of the Safety and Efficacy of Multi-dose Intravenous ARC-520 in Patients With Chronic...
Hepatitis BChronic HBV patients will receive 9 doses of open-label ARC-520 once every 4 weeks and be evaluated for safety and efficacy.

A Study of ALN-HBV in Healthy Adult Volunteers and Non-cirrhotic Patients With Chronic Hepatitis...
Hepatitis BChronic Hepatitis B4 moreThe purpose of this study is to determine the safety, tolerability and pharmacokinetics of ALN-HBV in healthy adult volunteers and patients with chronic hepatitis B virus (HBV) infection. In addition, the study will assess antiviral efficacy of ALN-HBV in patients with HBV.

Comparison Between Lamivudine and Entecavir Treatment in Spontaneous Severe Acute Exacerbation
Chronic Hepatitis BThis is a prospective, observational, open-label, 2-arm, parallel, multi-center study. Patients with HBV-associated severe acute exacerbation for whom the treatment with NRTI (such as lamivudine and entecavir) is medically recommended will be screened for eligibility. To target 74 evaluable subjects, approximately 82 patients should be recruited into this trial. After enrollment, all eligible subjects will be randomly assigned to one of the antiviral treatments below. Cohort 1: Lamivudine 100 mg p.o. q.d. Cohort 2: Entecavir 0.5 mg p.o. q.d. This process will be stratified by prolonged PT, < 4 sec / 4-6 sec / > 6 sec. Both lamivudine and entecavir will be taken once daily and the first dose of observational drug should be administered on Day 1. The observational period of individual subject will be 12 weeks; however, both treatments could be continued after the end of study based on physician's clinical judgment. The efficacy and safety data will be collected at baseline, 3, 5, 8, 15, 22, 29, 85, and 180 days after initiation of antiviral treatment. All assessments should be conducted based on routine practice of each hospital. Only the analysis of HBV DNA and anti-HDV will be performed in the central lab. For patients who are willing to provide the residual samples of HBV DNA assessment, the blood samples will be preserved appropriately. All AE(s) and SAE will be followed until resolution or the event is considered stable.

HBRN: Immune Regulation and Costimulation in Natural History and Therapeutic Outcome of Chronic...
Hepatitis BThis is an ancillary to the NIDDK-sponsored treatment trials titled: Combination Therapy of Pegylated Interferon Alfa-2a and Tenofovir Versus Tenofovir Monotherapy in Chronic Hepatitis B (NCT01369212) and Combination Entecavir and Peginterferon Therapy in HBeAg-Positive Immune-Tolerant Adults With Chronic Hepatitis B (NCT01369199). This study will examine the balance between immune regulatory and effector responses in hepatitis B-infected participants enrolled in the HBRN's clinical trials (NCT01369212 and NCT01369199) to define natural history and treatment outcome.

Alisporivir With PEG and RBV in Protease Inhibitor (PI) Treatment Failure Patients With Chronic...
Hepatitis CThis study is to evaluate the overall efficacy, and safety profile of the triple combination therapy of alisporivir (ALV; DEB025) plus peginterferon alfa-2a (PEG) and ribavirin (RBV) patients with chronic hepatitis C (HCV) genotype 1 who failed prior treatment with a protease inhibitor (PI).

A Study to Evaluate the Safety, Pharmacokinetics and Pharmacodynamics of MK-8325 in Hepatitis C-Infected...
Hepatitis CChronicThis 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.

Safety and Antiviral Activity Study of Clevudine 30 mg QD in Patients With HBeAg(-) Chronic HBV...
Hepatitis BThe purpose of this study is to determine safety and efficacy of 30mg daily dose of clevudine (L-FMAU) at 24 weeks of treatment in chronic HBV infected patients with HBeAg negative

Study of Combination Therapy With LdT Plus Adefovir Versus Adefovir Alone
Hepatitis BThis study is being conducted to compare the safety and effectiveness of the investigational medication LdT (telbivudine) used in combination with adefovir dipivoxil (a drug currently approved by the Food and Drug Administration [FDA] for the treatment of hepatitis B virus [HBV]) versus adefovir dipivoxil used alone. The results for patients taking the combination therapy will be compared to the results for patients taking adefovir alone.

Safety and Antiviral Activity of Clevudine in Patients Infected With Hepatitis B Virus
Hepatitis BThe purpose of this study is to determine the antiviral effects and safety of clevudine 30 mg once a day (QD) and 50 mg QD in patients infected with hepatitis B virus (HBV).

Viral Kinetic Study With Viramidine in Therapy-Naive Patients With Chronic Hepatitis C
Hepatitis CChronicThe purpose of this study is to examine the rapid virologic response (RVR) at combination therapy (CT) Week 4 between groups receiving a standard combination peginterferon alfa-2b/viramidine dosing regimen versus a cohort that receives 4 weeks of viramidine monotherapy prior to the start of peginterferon alfa-2b/viramidine combination therapy.