Active clinical trials for "Hepatitis B, Chronic"

The patient who meets the inclusion/exclusion criteria is assigned to Test1 group or Test 2 group or control group randomly. All subjects take one pill of Viread® Tab. (Tenofovir Disoproxil Fumarate 300mg) once a day for 48 weeks. At the same time, all randomized subjects take two pills of DWPUR001 or Placebo of DWPUR001 twice a day for 48 weeks.

As HBsAg clearance is uncommon in chronic hepatitis B (CHB) patients on nucleoside analogues (NAs) therapy. The purpose of this study is to optimize HBsAg clearance in CHB Patients with sequential treatment of pegylated interferon alpha and NAs.

Patients will receive Peginterferon alfa-2a according to the standard medical practice but the observation period is 12 weeks

Currently, peginterferon alfa-2a or oral nucleos(t)ides are approved for the treatment with HBeAg positive CHB, with the overall HBeAg seroconversion far from satisfactory. Therefore, efforts on the various combinations with the currently available drugs are needed to improve the overall response rates. The simultaneous combination therapy with oral nucleoside and peginterferon alfa-2a from large-scaled randomized trials did not show a superior response rate over peginterferon alfa-2a monotherapy. Recently, sequential monotherapy with lamivudine for the first 4 weeks, followed by weekly peginterferon alfa-2a has shown favorable HBeAg seroconversion rate over peginterferon alfa-2a monotherapy, based on the assumption that early viral suppression by lamivudine can restore the immune function to facilitate the later immunomodulatory response by peginterferon alfa-2a. With the recent introduction of entecavir, the more potent oral nucleoside with few drug resistance, sequential monotherapy with entecavir can potently suppress HBV DNA with 4 weeks of treatment, which may facilitate the response of peginterferon alfa-2a to achieve HBeAg seroconversion. Therefore, we aimed to conduct a placebo controlled randomized control trial to evaluate of adding entecavir early in the course of therapy can improve the treatment response.

The aim of interferon therapy in HBeAg positive chronic hepatitis B was to make patients obtain immune control to hepatitis B virus defined as occurred HBeAg seroconversion and HBsAg loss with sustained viral response after treatment. However this target could not be get if patients keep HBV DNA positive during interferon treatment and offend relapse after withdraw of treatment. In this trail, Nucleoside(acid) analogues(NA) will add on patients with HBV DNA load ≥1000copies/ml after 6 months of interferon treatment, and the efficacies of the combine therapy were evaluated by the rates of HBeAg seroconversion and HBsAg loss after 48 weeks of combined therapy, compared with control group.

This is a prospective, randomized, multicenter, open-label study. After more than 24 weeks NA treatment, HBeAg positive CHB patients who achieved HBV DNA<1000copies/ml but HBeAb negative, will be randomized (1:1) into 2 study arms as follows: Arm A: Peginterferon alfa-2a 180μg /wk plus NA 1 piece qd for 48 weeks Arm B: Entecavir 0.5mg qd for 48 weeks

This study evaluates whether addition of Peginterferon alfa-2a to CHB Patients Treated with nucleoside analogues (NAs) can enhance the rate of HBsAg clearance at end of treatment. This study is a Randomized, open-label, multi-center study. The CHB patients with NAs treatment and have achieved HBV DNA <15 IU/ml、HBeAg <100 PEIU/ml、HBsAg positive and HBsAg<1500 IU/ml will be randomized into 2 groups: Group 1 (Combination group): Maintain NAs treatment while add 48-week standard treatment by Peginterferon alfa 2a 180µg/week Group 2 (Mono NA group) : Maintain NAs treatment for 49 weeks. Note: NAs including: LAM, ADV, ETV, or TDF.

Primary objective: Compare Pegasys RGT overall response rate (i.e., HBeAg seroconversion rate) with Pegasys mono historical response rate at week 72 (48 week treatment with 24 week follow up) Secondary objective : The changes of HBsAg titer The rate of combined HBeAg seroconversion and HBV DNA < 300 copies/mL The rate of serum HBV DNA < 300 copies/mL ⅳ. The rate of ALT normalization The rate of HBsAg loss ⅵ. The rate of serum HBV DNA < 10,000 copies/mL

As HBsAg clearance is uncommon in chronic hepatitis B (CHB) patients on nucleoside analogues (NAs) therapy. The purpose of this study is to optimize HBsAg clearance in CHB Patients with sequential treatment of pegylated interferon alpha-2b and NAs.

The current study is a prospective, randomized, open, multi-center investigation. The aim of the study is to investigate whether the HBeAg seroconversion rate can be improved if applying combination therapy in HBeAg positive CHB patients who has achieved HBVDNA<105copies/ml，HBsAg≤5000IU/ml, ALT≥ 2ULN or Liver histology G2S2.