Active clinical trials for "Hepatitis, Chronic"

The primary objective of this study is to evaluate the safety and tolerability and virologic response of tenofovir alafenamide (TAF) in virologically suppressed chronic hepatitis B participants with renal and/or hepatic impairment.

The primary objectives of this study are to evaluate safety, efficacy, and tolerability of treatment with sofosbuvir/velpatasvir (SOF/VEL) for 12 weeks in adults on dialysis for end stage renal disease (ESRD) with chronic hepatitis C virus (HCV) infection of any genotype.

Treatment of CHB patients with genotypic resistance to NUCs has been problematic due to the lack of data from randomized trials. Recently, two randomized trials comparing the efficacy of TDF monotherapy versus TDF and ETV combination therapy in CHB patients with documented genotypic resistance to adefovir (ADV) or ETV demonstrated TDF monotherapy was not statistically different in viral suppression at week 48 of treatment.1,2 The extension study based on the above two trials merged study subjects from these trials with changing from TDF and ETV combination group to TDF monotherapy to evaluate long-term efficacy and safety of TDF monotherapy for multidrug-resistant patients. At the time of merging of 192 subjects, by intention-to-treat analysis, 66.3% of TDF group and 68.0% of TDF-ETV group had virological response as determined by serum HBV DNA <15 IU/mL. (in press) Three year long-term follow up study showed that the proportion of virologic suppression increased to 76.8% and 72.2% in TDF-TDF and TDF/TDF-ETV groups, respectively( P=0.46). (in press) TAF, a novel prodrug of tenofovir was developed to have greater stability in plasma than TDF, thereby enabling more efficient delivery of the active metabolite to target cells at a substantially lower dose. The reduced systemic exposure of tenofovir offers the potential for an improved safety profile compared to TDF a benefit that demonstrated in a recent clinical trial in patients with HIV infection. In a recent double-blind randomized phase 3 noninferiority trial with 873 treatment naive patients who were positive for HBeAg, the proportion of patients receiving TAF who had HBV DNA <29 IU/mL at week 48 was 64%, which was non-inferior to the rate of 67% in patients receiving TDF (P=0.25).3 In the safety profile, TAF group had significantly smaller decrease in BMD than TDF group in the hip and spine, as well as significantly smaller increases in serum creatinine at week 48.3 For treatment naive HBeAg negative patients, a recent study with 425 subjects applied the same methodology and showed noninferiority in efficacy of TAF compared to TDF at week 48.4 Considering noninferiority in efficacy and superior bone and renal safety from TAF, TAF might be considered preferred choice of NUC instead of TDF. However, it is still unknown whether TAF would show similar efficacy and safety profile in patients with multidrug-resistant CHB.

The study is an open-label, randomized, comparative, multicenter clinical trial. The purpose of this study is to assess the efficacy of ABX203, a new chronic hepatitis B therapeutic vaccine administered as an adjunct therapy to nucleos(t)ide analogs (NUCs), in maintaining control of Hepatitis B disease after cessation of treatment with NUCs in subjects with HBeAg negative chronic Hepatitis B.

The purpose of this study is to evaluate the antiviral activity, safety, and pharmacokinetics of ABT-450 with ritonavir (ABT-450/r) dosed in combination with ABT-333 (also known as dasabuvir) and ribavirin (RBV) in treatment-naïve and non responder participants with genotype 1 chronic hepatitis C virus (HCV) infection.

The purpose of this study was to assess the safety, pharmacokinetics, and 4-week rapid virologic response (RVR) of 3 different doses of ABT-267 (also known as ombitasvir) in combination with pegylated interferon/ribavirin (pegIFN/RBV) compared with pegIFN/RBV alone (ABT-267 placebo) in treatment naïve, hepatitis C virus (HCV), genotype 1-infected participants.

To evaluate the efficacy of E5501 by measuring platelet response in subjects with chronic hepatitis C virus (HCV)-related thrombocytopenia who require antiviral treatment.

Telbivudine reduces DNA and normalizes alanine aminotransferase levels (ALT) in chronic hepatitis B patients with few adverse effects, but its use during pregnancy has not been explored. In this open-label, prospective study from the second trimester to post-partum week 28. This trial is to study the efficacy, safety and tolerability of Telbivudine in HBeAg Positive Chronic Hepatitis B Pregnant Women with high level of serum HBV DNA and elevated alanine aminotransferase levels.

The primary objective of this study is to evaluate the efficacy of tenofovir disoproxil fumarate (TDF) plus peginterferon α-2a (Peg-IFN) combination therapy for 48 weeks versus standard of care TDF monotherapy or Peg-IFN monotherapy for 48 weeks in non-cirrhotic adults with chronic hepatitis B virus (HBV) as determined by loss of hepatitis B surface antigen (HBsAg). The study will consist of 2 phases for participants in the TDF+Peg-IFN 48 Weeks, TDF 48 Weeks + Peg-IFN 16 Weeks, and Peg-IFN 48 Weeks groups. Following an initial 48 weeks of treatment, participants in these groups will be monitored for 24 weeks for signs of worsening HBV, and those meeting TDF retreatment and flare management criteria will be eligible to receive TDF monotherapy during a retreatment phase, up to Week 120.

The purpose of this study is to explore the efficacy and safety of TMC647055, TMC435, and low-dose ritonavir, administered together with and without ribavirin and of TMC647055, TMC435, low-dose ritonavir administered together with GSK233680k without ribavirin in a limited number of patients with chronic hepatitis C virus (HCV) infection.