There are 5 clinical trials
This 48-week open-label study of local manufactured adefovir dipivoxil Tablet evaluates the efficacy and safety of adefovir 10mg once daily in Chinese subjects with compensated CHB. Primary endpoint is proportion of subjects achieving HBV DNA undetectable (<=1000 copies/mL by by Roche COBAS AMPLICOR HBV MONITOR Test) at week 48. Approximately 1250 patients will be recruited in 30 study centers in China. The subjects are offered 48 weeks of open label adefovir dipivoxil treatment, with assessments every three months, after with is a 12-week post study treatment follow-up prior to study completion.
Week 48 serum samples from participants, who reached a HBV DNA breakthrough or have HBV DNA≥5 log copies/mL at Weeks 24 and 48 were assessed for the development of ADV (Adefovir dipivoxil) mutation (N236T and A181V) in the HBV polymerase. --- N236T --- --- A181V ---
Description: HBV (Hepatitis B Virus) DNA level was tested by real-time Polymerase Chain Reaction at Week 48.
Measure: Number of Participants Achieving HBV DNA (Hepatitis B Virus Deoxyribonucleic Acid) <1000 Copies/Milliliter at Week 48 Time: Week 48Description: Histological improvement (defined as a ≥2 point reduction in the Knodell necroinflammation score without worsening fibrosis) was accessed by two pathologists in HBeAg-positive participants undergoing liver biopsy at baseline and week 48/withdrawal. Knodell/Histological Activity Index (HAI) score = combined scores for necrosis, inflammation, and fibrosis and is the sum of scores for periportal bridging necrosis (0-10: none=0, multilobular necrosis=10), intralobular degeneration and focal necrosis and portal inflammation (0-4: none=0, marked=4), and fibrosis (0-4: none=0, cirrhosis=4).
Measure: Number of HBeAg Positive Participants Achieving Histological Improvement at Week 48 Time: Week 48Description: A ranked assessment with the Knodell/HAI scoring system that represents the sum of scores for periportal bridging necrosis (0-10: none=0, moderate piecemeal necrosis plus bridging necrosis=5, multilobular necrosis=10); interlobular degeneration and focal necrosis (0-4: none=0, marked=4); portal inflammation (0-4: none=0, marked=4) and fibrosis (0-4: none=0, fibrous portal expansion=1, bridging fibrosis=3, cirrhosis=4) was carried out by two pathologists in the HBeAg positive participants who underwent liver biopsy at baseline and Week 48/withdrawal.
Measure: Ranked Assessment of Liver Histology in HBeAg Positive Participants From Baseline to Week 48 Time: Baseline to Week 48Description: The HBV DNA level was tested in blood serum by real-time Polymerase Chain Reaction with the LLD (lower limit of detection) as 300 copies/milliliter (cp/mL) at screening, week 24, and week 48 in a central laboratory. The change in HBV DNA from screening to week 24 and week 48 was conducted.
Measure: Change From Screening in Median Serum HBV DNA at Weeks 24 and 48 Time: Weeks 24 and 48Description: Elevated serum ALT levels are defined as serum ALT levels greater than the upper limit of the normal range (ULN), as determined using local laboratory ranges. ALT normalization was defined as ALT measurements at or below the ULN after a baseline value above the ULN.
Measure: Number of Participants Achieving ALT (Alanine Aminotransferase) Normalization at Week 48 Time: Week 48Description: HBeAg loss and HBeAg seroconversion (HBeAg loss and HBeAb detected) were assessed in participants who were HBeAg positive at Weeks 0 and 48. Confirmed HBeAg loss was defined as undetectable HBeAg.
Measure: Number of HBeAg Positive Participants Achieving HBeAg Loss and HBeAg Seroconversion at Week 48 Time: Week 48Description: Week 48 serum samples from participants, who reached a HBV DNA breakthrough or have HBV DNA≥5 log copies/mL at Weeks 24 and 48 were assessed for the development of ADV (Adefovir dipivoxil) mutation (N236T and A181V) in the HBV polymerase. Virologic breakthrough was defined as an increase in the level of HBV DNA 1 log10 copy/mL from Week 24 to Week 48. ADV-associated resistance was defined as participants with both virologic breakthrough and ADV mutation.
Measure: Number of Participants With ADV-associated Resistance at Week 48 Time: Week 48The purpose of this study is to determine whether Adefovir Dipivoxil is effective and safe in treatment of Chinese Patients with HBeAg positive Chronic Hepatitis B for 5 years.
The proportion of subjects developing N236T and A181V HBV DNA genotypic mutations associated with ADV resistance. --- N236T --- --- A181V ---
The purpose of this trial is to prove that the strategy of treatment adjustment at W24 according to virological response based on ROADMAP concept is better than standard of care strategy.
Inclusion Criteria: - Male or female, from 18 (inclusive) to 65 (inclusive) years of age - HBsAg and HBeAg positive for over six months - Patient is willing and able to comply with the study drug regimen and all other study requirements - Patients must give written informed consent before any assessment is performed Exclusion Criteria: - Detected M204I/V, N236T, A181V/T mutation in patient serum HBV DNA at Screening visit - Patient has a history of or clinical signs/symptoms of hepatic decompensation - Patient has a history of hepatocellular carcinoma (HCC) or findings suggestive of possible HCC - Other protocol-defined inclusion/exclusion criteria may apply Inclusion Criteria: - Male or female, from 18 (inclusive) to 65 (inclusive) years of age - HBsAg and HBeAg positive for over six months - Patient is willing and able to comply with the study drug regimen and all other study requirements - Patients must give written informed consent before any assessment is performed Exclusion Criteria: - Detected M204I/V, N236T, A181V/T mutation in patient serum HBV DNA at Screening visit - Patient has a history of or clinical signs/symptoms of hepatic decompensation - Patient has a history of hepatocellular carcinoma (HCC) or findings suggestive of possible HCC - Other protocol-defined inclusion/exclusion criteria may apply Hepatitis B, Chronic Hepatitis A Hepatitis B Hepatitis B, Chronic Hepatitis null --- M204I --- --- N236T --- --- A181V ---
Inclusion Criteria: - Male or female, from 18 (inclusive) to 65 (inclusive) years of age - HBsAg and HBeAg positive for over six months - Patient is willing and able to comply with the study drug regimen and all other study requirements - Patients must give written informed consent before any assessment is performed Exclusion Criteria: - Detected M204I/V, N236T, A181V/T mutation in patient serum HBV DNA at Screening visit - Patient has a history of or clinical signs/symptoms of hepatic decompensation - Patient has a history of hepatocellular carcinoma (HCC) or findings suggestive of possible HCC - Other protocol-defined inclusion/exclusion criteria may apply Inclusion Criteria: - Male or female, from 18 (inclusive) to 65 (inclusive) years of age - HBsAg and HBeAg positive for over six months - Patient is willing and able to comply with the study drug regimen and all other study requirements - Patients must give written informed consent before any assessment is performed Exclusion Criteria: - Detected M204I/V, N236T, A181V/T mutation in patient serum HBV DNA at Screening visit - Patient has a history of or clinical signs/symptoms of hepatic decompensation - Patient has a history of hepatocellular carcinoma (HCC) or findings suggestive of possible HCC - Other protocol-defined inclusion/exclusion criteria may apply Hepatitis B, Chronic Hepatitis A Hepatitis B Hepatitis B, Chronic Hepatitis null --- M204I --- --- N236T --- --- A181V --- --- M204I --- --- N236T --- --- A181V ---
The purpose of this study is to evaluate the efficacy and safety of generic entecavir monotherapy or in combination with adefovir for chronic hepatitis B patients with inadequate response to NUC therapy
The proportion of subjects with mutations of rtN236T/A181V, rtL180M/rtM204V/rtT184/rtS202 and/or rtM250 at week 104. --- A181V ---
This is a phase IV, 2-year, multi-center, single arm and open-label study, evaluating the efficacy and safety with using local manufactured adefovir dipivoxil in Chinese subjects with HBeAg negative chronic hepatitis B
Week 104 serum samples from participants who reached a HBV DNA breakthrough were assessed for the development of ADV (Adefovir dipivoxil) mutations (N236T and A181V) in the HBV polymerase. --- N236T --- --- A181V ---
Description: Hepatitis B Virus (HBV) DNA level is tested in blood serum by real-time Polymerase Chain Reaction with the lower limit of detection (LLD) as 300 copies/milliliter in a central laboratory.
Measure: Number of Participants Achieving HBV DNA ≤300 Copies/mL at Week 104 Time: Week 104Description: Histological improvement (defined as ≥2 point reduction in the Knodell necroinflammation score without worsening fibrosis) was assessed by 2 independent pathologists in the HBeAg-negative participants who underwent 2 sequential liver biopsies at baseline and week 104/withdrawal. The Knodell/histological activity index (HAI) scoring system represents the sum of scores for periportal, bridging necrosis (0-10: none=0, multilobular necrosis=10), interlobular degeneration and focal necrosis (0-4: none=0, marked=4), portal inflammation (0-4: none=0, marked=4), and fibrosis (0-4: none=0, cirrhosis=4)
Measure: Number of Participants Achieving Histological Improvement After the 104-week Treatment Time: Week 104Description: The Knodell/histological activity index (HAI) scoring system that represents the sum of scores for periportal bridging necrosis (0-10: none=0, moderate piecemeal necrosis plus bridging necrosis=5, multilobular necrosis=10); interlobular degeneration and focal necrosis (0-4: none=0, marked=4); portal inflammation (0-4: none=0, marked=4) and fibrosis (0-4: none=0, fibrous portal expansion=1, bridging fibrosis=3, cirrhosis=4) was carried out by two independent pathologists in the HBeAg negative participants with 2 sequential liver biopsies during the period of 104 weeks.
Measure: Liver Histology Scores in HBeAg Negative Participants With Two Sequential Liver Biopsies During the Period of 104 Weeks Time: Baseline to Week 104Description: The HBV DNA level was tested in blood serum by real-time PCR with the LLD as 300 copies/mL at baseline and Weeks 13, 26, 39, 52, 65, 78, 91, and 104 in a central laboratory.
Measure: Change From Baseline in Median Serum HBV DNA Over Time Time: Baseline and Weeks 13, 26, 39, 52, 65, 78, 91, and 104Description: Serum alanine aminotransferase (ALT) normalization was defined as a serum ALT level at or below the upper limit of the normal (ULN) range after a baseline value above the ULN, as determined using central laboratory ranges.
Measure: Number of Participants Achieving ALT Normalization at Week 104 Time: Week 104Description: HBsAg loss and HBsAg seroconversion (HBsAg loss and HBsAb detected) were assessed for all participants who were HBeAg negative at Weeks 0 and 104. Confirmed HBsAg loss was defined as undetectable HBeAg.
Measure: Number of Participants Achieving HBsAg Loss and HBsAg Seroconversion at Week 104 Time: Week 104Description: Week 104 serum samples from participants who reached a HBV DNA breakthrough were assessed for the development of ADV (Adefovir dipivoxil) mutations (N236T and A181V) in the HBV polymerase. HBV DNA breakthrough was defined as an increase in HBV DNA level by 1 log10 copies/mL or more from the treatment nadir during Weeks 0 to 104.
Measure: Number of Participants With ADV-associated Resistance at Week 104 Time: Week 104Description: Hepatitis B Virus (HBV) DNA level is tested in blood serum by real-time Polymerase Chain Reaction with the lower limit of detection (LLD) as 300 copies/milliliter in a central laboratory.
Measure: Number of Participants Achieving HBV DNA ≤300 Copies/mL Over Time Time: Weeks 13, 26, 39, 52, 65, 78, 91, and 104Description: Complete response was defined as an HBV DNA level ≤ 300 copies/mL by the Roche COBAS AMPLICOR HBV MONITOR Test and ALT normalized for two consecutive visits at least 3 months apart.
Measure: Number of Participants Achieving Complete Response at Week 104 Time: Week 104Description: Time to response was defined as the time to participants achieving protocol-defined complete response at week 104 from baseline. Protocol-defined complete response was an HBV DNA level ≤ 300 copies/mL by Roche COBAS AMPLICOR HBV MONITOR Test and ALT normalized for two consecutive visits at least 3 months apart.
Measure: Time to Protocol-defined Complete Response Over a 104-week Treatment Period Time: Baseline to Week 104