View clinical trials related to Hepatitis B.
Filter by:This multicenter, prospective, observational study will evaluate the efficacy and safety of Pegasys (peginterferon alfa-2a) in routine clinical practice in patients with HBeAg-positive or HBeAg-negative chronic hepatitis B. Eligible patients receiving treatment with Pegasys according to standard of care and the summary od product characteristics/local labelling will be followed for the duration of treatment and up to 2 years of follow-up.
This study will provide a rationale for switch from lamivudine plus adefovir to tenofovir monotherapy in Lamivudine plus Adefovir Treated Lamivudine-resistant chronic hepatitis B patients with Undetectable Hepatitis B Virus DNA
The investigators aim to clarify the issue of adequate duration of consolidation period of Chronic hepatitis B infection with antiviral treatment with Tenofovir which could strike a balance between durable HBeAg seroconversion and avoiding long-term inevitable serological or virological recurrence.
The relevant data will be prospectively collected included patient demographics, clinical, all laboratory variables including virological tests, genotyping by direct sequencing, abdominal ultrasound, and upper gastrointestinal (GI) endoscopy. Trans jugular liver biopsy (TJLB) and hepatic venous pressure gradient (HVPG) will be done in patients when it was not evident whether the underlying liver disease was chronic based on clinical, biochemical, radiological investigations, and upper GI endoscopy. Severity of the liver disease will be assessed by Child-Turcotte Pugh score (CTP) and model for end stage liver disease (MELD) score.
This multicenter, prospective, observational study will evaluate the use in clinical practice and the efficacy and safety of Pegasys (peginterferon alfa-2a) in Chinese participants with HBeAg negative chronic hepatitis B. Participants receiving Pegasys according to the local label will be followed for the duration of their treatment and for one year after cessation of treatment.
Tenofovir (TDF) has been demonstrated to have potency antiviral against the hepatitis B virus (HBV) in various multiple-centre trials, with no cases of resistance encountered. However, its efficacy and resistance profile in the Asian population, which constitute the majority of chronic hepatitis B (CHB) patients, is unknown. Compared to other nucleoside analogues, TDF has been associated with relatively high rates of hepatitis B surface antigen (HBsAg) seroclearance. It would be interested to see if this could be reproduced. The investigators plan to report the serologic and virologic results of our 140 nucleoside analogue-experienced patients who were commenced on TDF.
To compare the effectiveness, in a real world practice setting in tier 2 cities of China, of Entecavir (ETV) monotherapy and Lamivudine (LAM) based therapies (including LAM monotherapy, de novo LAM + Adefovir [ADV] combination, and early add-on of ADV) among chronic hepatitis B (CHB) patients who are naive to NUC at enrollment to this study
Entecavir, a potent antiviral agent, has been widely used for treatment-naïve chronic hepatitis B patients. However, about 20% of patients showed partial virologic response after 2 year of entecavir therapy (33% in HBeAg positive, 10% in HBeAg negative patients). Tenofovir is a nucleotide analogue with more potent antiviral activity. In addition, there is no cross resistance between the two drugs. Therefore it is assumed that tenofovir would be effective in the treatment of chronic hepatitis B patients who shows partial virologic response (detectable HBV DNA by real time PCR after 12 months of treatment) despite treatment with entecavir. In this study, we will compare the efficacy of switching to tenofovir with continuing entecavir in patients who shows partial virologic response to entecavir.
This open-label, single-arm, multicenter study will evaluate the efficacy and safety of adding Pegasys (peginterferon alfa-2a) to nucleos(t)ide analogue (NAs) treatment in patients with HBeAg-negative chronic hepatitis B genotype D showing stable HBV DNA suppression. After a 12-week Lead-in period on treatment with NA, patients with a HBsAg decline <0.5 log10 IU/ml will enter the Add-on period to receive Pegasys 180 mcg subcutaneously weekly for 48 weeks in addition to their current NA treatment. Follow-up will be a further 48 weeks, during which the patients will continue their NA treatment.
This retrospective study will evaluate the association of biomarkers and the treatment response of patients with chronic hepatitis B, who have completed therapy with Pegasys (peginterferon alfa-2a) ± lamivudine. For the analysis stored serum samples obtained from patients will be used; no actual patients are involved.