SNPMiner Trials (Home Page)
Report for Mutation M204V
Developed by Shray Alag, 2020.
SNP Clinical Trial Gene
There are 5 clinical trials
Clinical Trials
1 A Comparative Study of Entecavir vs. Adefovir Plus Lamivudine vs Combination Entecavir Plus Adefovir in Lamivudine-resistant Chronic Hepatitis B Subjects: The DEFINE Study
The purpose of this study is to evaluate the effectiveness of entecavir plus adefovir combination therapy versus entecavir monotherapy or therapy with adefovir plus lamivudine
NCT00410202 Hepatitis B, Chronic Drug: Entecavir Drug: Tenofovir Drug: Adefovir Drug: Lamivudine MeSH:Hepatitis A Hepatitis B Hepatitis B, Chronic Hepatitis
HPO:Hepatitis
Inclusion Criteria: - Evidence of lamivudine (LVD) resistance - Subjects must have a history of previous LVD treatment at screening, and must have evidence of at least 1 LVD resistance substitution (valine, isoleucine, or serine) at reverse transcriptase codon 204 (M204V/I/S) - Nucleoside- and nucleotide-naive, except for LVD, and had chronic hepatitis B (HBV) infection - Compensated liver function and must have met ALL of the following criteria:International normalization ratio (INR) ≤ 1.5; Serum albumin ≥ 3 g/dL (≥ 30 g/L); Serum total bilirubin ≤ 2.5 mg/dL (≤ 42.75 μmol/L) - HBV DNA > 1.72 x 10*4* IU/mL (approximately 10*5* copies/mL) - Documentation of hepatitis B e antigen (HBeAg) positive and hepatitis B e antibody (HBeAb) negative status at screening - alanine aminotransferase (ALT) ≤ 10 * upper limit of normal (ULN) at screening - Women of childbearing potential (WOCBP) must be using an adequate method of contraception to avoid pregnancy throughout the study (and for up to 6 weeks after the last dose of investigational product) in such a manner that the risk of pregnancy is minimized - WOCBP include any female who has experienced menarche and who has not undergone successful surgical sterilization (hysterectomy, bilateral tubal ligation or bilateral oophorectomy) or is not postmenopausal. --- M204V ---
Post menopausal is defined as: - Women who are using oral contraceptives, other hormonal contraceptives (vaginal products, skin patches, or implanted or injectable products), or mechanical products such as an intrauterine device or barrier methods (diaphragm, condoms, spermicides) to prevent pregnancy, or are practicing abstinence or where partner is sterile (e.g., vasectomy), should be considered to be of child bearing potential - WOCBP must have a negative serum or urine pregnancy test (minimum sensitivity 25 IU/L or equivalent units of human chorionic gonadotropin) within 72 hours prior to the start of investigational product Exclusion Criteria: - Evidence of decompensated cirrhosis - Coinfection with human immunodeficiency virus, hepatitis C virus , or hepatitis D virus - Women who are pregnant or breastfeeding - Sexually active fertile men not using effective birth control if their partners were WOCBP - Laboratory values out of protocol-specified range Inclusion Criteria: - Evidence of lamivudine (LVD) resistance - Subjects must have a history of previous LVD treatment at screening, and must have evidence of at least 1 LVD resistance substitution (valine, isoleucine, or serine) at reverse transcriptase codon 204 (M204V/I/S) - Nucleoside- and nucleotide-naive, except for LVD, and had chronic hepatitis B (HBV) infection - Compensated liver function and must have met ALL of the following criteria:International normalization ratio (INR) ≤ 1.5; Serum albumin ≥ 3 g/dL (≥ 30 g/L); Serum total bilirubin ≤ 2.5 mg/dL (≤ 42.75 μmol/L) - HBV DNA > 1.72 x 10*4* IU/mL (approximately 10*5* copies/mL) - Documentation of hepatitis B e antigen (HBeAg) positive and hepatitis B e antibody (HBeAb) negative status at screening - alanine aminotransferase (ALT) ≤ 10 * upper limit of normal (ULN) at screening - Women of childbearing potential (WOCBP) must be using an adequate method of contraception to avoid pregnancy throughout the study (and for up to 6 weeks after the last dose of investigational product) in such a manner that the risk of pregnancy is minimized - WOCBP include any female who has experienced menarche and who has not undergone successful surgical sterilization (hysterectomy, bilateral tubal ligation or bilateral oophorectomy) or is not postmenopausal. --- M204V ---
Primary Outcomes
Description: HBV DNA assessments were performed using the Roche COBAS® TaqMan High Pure System (HPS) assay. HBV DNA less than (<)50 International units per milliliter (IU/mL) = approximately 300 copies/mL. Percentage of participants calculated n/N; n= number of participants with HBV DNA <50 IU/mL; N = number of participants analyzed.
Measure: Percentage of Participants With Hepatitis B Virus (HBV) Deoxyribonucleic Acid (DNA) < 50 IU/mL (Approximately 300 Copies/mL) by Polymerase Chain Reaction (PCR) at Week 48 Time: Week 48Secondary Outcomes
Description: HBV DNA assessments were performed using the Roche COBAS® TaqMan HPS assay. HBV DNA < 50 IU/mL = approximately 300 copies/mL. Percentage n/N: n= number of participants with HBV DNA <50 IU/mL; N = number of participants analyzed.
Measure: Percentage of Participants With HBV DNA < 50 IU/mL (Approximately 300 Copies/mL) by PCR at Week 96 Time: Week 96Description: HBV DNA assessments were performed using the Roche COBAS® TaqMan HPS assay. LOQ is the level above which quantitative results may be obtained with a specified degree of confidence. The LOQ is mathematically defined as equal to 10 times the standard deviation of the results for a series of replicates used to determine a justifiable limit of detection. Percentage n/N: n= number of participants with outcome result; N = number of participants analyzed.
Measure: Percentage of Participants Who Achieve HBV DNA < Lower Limit of Quantitation (LOQ = 29 IU/mL [Approximately 169 Copies/mL]) at Week 48 Time: Week 48Description: HBV DNA assessments were performed using the Roche COBAS® TaqMan HPS assay. LOQ is the level above which quantitative results may be obtained with a specified degree of confidence. The LOQ is mathematically defined as equal to 10 times the standard deviation of the results for a series of replicates used to determine a justifiable limit of detection. Percentage n/N: n= number of participants with outcome result; N = number of participants analyzed.
Measure: Percentage of Participants Who Achieve HBV DNA < Lower Limit of Quantitation (LOQ = 29 IU/mL [Approximately 169 Copies/mL]) at Week 96 Time: Week 96Description: HBV DNA assessments were performed using the Roche COBAS® TaqMan HPS assay. LOD is the lowest concentration level that can be determined to be statistically different from a blank (99% confidence). The LOD is typically determined to be in the region where the signal to noise ratio is greater than 5. Limits of detection are matrix-, method-, and analyte-specific.
Measure: Percentage of Participants Who Achieve HBV DNA < Lower Limit of Detection (LOD = 10 IU/mL [Approximately 58 Copies/mL]) at Week 48 Time: Week 48Description: HBV DNA assessments were performed using the Roche COBAS® TaqMan HPS assay. LOD is the lowest amount or concentration of analyte in a sample, which can be reliably detected, but not necessarily quantified.
Measure: Percentage of Participants Who Achieve HBV DNA < Lower Limit of Detection (LOD = 10 IU/mL [Approximately 58 Copies/mL]) at Week 96 Time: Week 96Description: HBV DNA assessments were performed using the Roche COBAS® TaqMan High Pure System (HPS) assay.
Measure: Percentage of Participants With HBV DNA by PCR Category at Week 48 Time: Week 48Description: HBV DNA assessments were performed using the Roche COBAS® TaqMan HPS assay.
Measure: Percentage of Participants With HBV DNA by PCR Category at Week 96 Time: Week 96Description: HBV DNA was analyzed by PCR, using the Roche COBAS®TaqMan TaqMan HPS assay. Reduction in log10 HBV count=reduced viral load, negative values means reduction.
Measure: Change in Mean log10 From Baseline in HBV DNA at Week 48 Time: Baseline, Week 48Description: HBV DNA was analyzed by PCR, using the Roche COBAS® TaqMan HPS assay. Reduction in log10 HBV count=reduced viral load.
Measure: Change in Mean log10 From Baseline in HBV DNA at Week 96 Time: Baseline, Week 96Description: ALT normalization=ALT level being less than or equal to 1 times the upper limit of normal (ULN). ULN for ALT is 37 or 48 U/L.
Measure: Percentage of Participants With Alanine Aminotransferase (ALT) > 1 x Upper Limit of Normal (ULN) at Baseline Who Achieve ALT Normalization at Week 48 Time: Week 48Description: ALT normalization=ALT level being less than or equal to 1 times the upper limit of normal (ULN). ULN for ALT is 37 U/L.
Measure: Percentage of Participants With Alanine Aminotransferase (ALT) > 1 x Upper Limit of Normal (ULN) at Baseline Who Achieve ALT Normalization at Week 96 Time: Baseline, Week 96Description: HBeAg is a hepatitis B viral protein. HBeAg loss = HBeAg-negative at the specified analysis week
Measure: Percentage of Participants With Confirmed HBeAg Loss at Week 48 (Treated HBeAg Positive Participants Only) Time: Week 48Description: HBeAg is a hepatitis B viral protein. HBeAg loss = HBeAg-negative at the specified analysis week
Measure: Percentage of Participants With Confirmed HBeAg Loss at Week 96 (Treated HBeAg Positive Participants Only) Time: Week 96Description: HBeAg is a hepatitis B viral protein. It is an indicator of active viral replication. HBeAg Seroconversion = HBeAg Loss and Presence of Hepatitis B e Antibody (HBeAb).
Measure: Percentage of Participants With HBeAg Seroconversion at Week 48 (Treated HBeAg-positive Participants Only) Time: Week 48Description: HBeAg is a hepatitis B viral protein. It is an indicator of active viral replication. HBeAg Seroconversion = HBeAg Loss and Presence of Hepatitis B e Antibody (HBeAb).
Measure: Percentage of Participants With HBeAg Seroconversion at Week 96 (Treated HBeAg-positive Participants Only) Time: Week 96Description: HBsAg = a part of the hepatitis B virus that, when in the blood, is an early marker of infection. HBsAg loss = HBsAg-negative at the specified analysis week.
Measure: Percentage of Participants With Hepatitis B Surface Antigen (HBsAg) Loss at Week 48 Time: Week 48Description: HBsAg = a part of the hepatitis B virus that, when in the blood, is an early marker of infection. HBsAg loss = HBsAg-negative at the specified analysis week.
Measure: Percentage of Participants With Hepatitis B Surface Antigen (HBsAg) Loss at Week 96 Time: Week 96Description: HBsAg = a part of the hepatitis B virus that, when in the blood, is an early marker of infection. HBs seroconversion is defined as HBsAg loss with positive HBsAb.
Measure: Percentage of Participants With HBsAg Seroconversion at Week 48 Time: Week 48Description: HBsAg = a part of the hepatitis B virus that, when in the blood, is an early marker of infection. HBs seroconversion is defined as HBsAg loss with positive HBsAb.
Measure: Percentage of Participants With HBsAg Seroconversion at Week 96 Time: Week 96Description: yr=year. Cumulative probability (CP): Ptotal=1-(1-Pyr1)*(1-Pyr2) where Pyear(i)= number of participants with events at Year i divided by number of participants at risk at Year i for i = 1,2. An "event" is defined as resistance or resistance with virologic breakthrough in a yearly interval. Participants 'at risk' are those who were treated during Year i and did not develop that resistance or resistance with virologic breakthrough prior to Year i. CP were calculated separately for ETV, ADV and TDF resistance. Participants who discontinue from study drug in Year i were assumed to be in follow up for the entire year. (VBT; a ≥ 1 log10 increase in HBV DNA from the on-treatment nadir, confirmed by 2 sequential HBV DNA results or observed at the last on-treatment HBV DNA). ETVr = ETV resistance (rtM204V/I/S plus any substitution at rtT184, rtS202, or rtM250); ADVr/TDFr = ADV/TDF resistance (rtA181T/V or rtN236T = ADVr and TDFr, rtA194T = TDFr only).
Measure: Cumulative Probability of Emergent Genotypic Resistance at Year 1 Time: Year 1Description: Cumulative probability (CP): Ptotal=1-(1-Pyr1)*(1-Pyr2) where Pyear(i)= number of participants with events at Year i divided by number of participants at risk at Year i for i = 1,2. An "event" is defined as resistance or resistance with virologic breakthrough in a yearly interval. Participants 'at risk' are those who were treated during Year i and did not develop that resistance or resistance with virologic breakthrough prior to Year i. CP were calculated separately for ETV, ADV and TDF resistance. Participants who discontinue from study drug in Year i were assumed to be in follow up for the entire year. (VBT; a ≥ 1 log10 increase in HBV DNA from the on-treatment nadir, confirmed by 2 sequential HBV DNA results or observed at the last on-treatment HBV DNA). ETVr = ETV resistance (rtM204V/I/S plus any substitution at rtT184, rtS202, or rtM250); ADVr/TDFr = ADV/TDF resistance (rtA181T/V or rtN236T = ADVr and TDFr, rtA194T = TDFr only).
Measure: Cumulative Probability of Emergent Genotypic Resistance at Year 2 Time: Year 2Description: AE: any new untoward medical occurrence/worsening of pre-existing medical condition, whether or not related to study drug. SAE: any AE that resulted in death; was life threatening; resulted in persistent/significant disability/incapacity; resulted in/prolonged an existing in-patient hospitalization; was a congenital anomaly/birth defect; or was an overdose. Participants who discontinued the study due to any AEs were recorded. Grade 1 = mild, Grade 2= moderate, Grade 3 = severe, Grade 4 = life threatening/disabling, Grade 5 = death.
Measure: Participants With Adverse Events (AE), Serious Adverse Events (SAE), and Discontinuations Due to Adverse Events or Laboratory Abnormalities During Treatment Time: From start of study therapy through Week 100 + 5 daysDescription: Criteria for hematology abnormalities were: Hemoglobin: <=11.0 g/dL; White Blood Cells: <4000/mm^3; Absolute Neutrophils (includes absolute bands): <1500/mm^3; Platelets: <=99,000/mm^3; International Normalized Ratio: ≥ 1.5 and ≥ 0.5 from baseline.
Measure: Number of Participants With Laboratory Abnormalities: Hematology Time: From start of study through Week 100 + 5 daysDescription: ULN=upper limit of normal (Normal ranges are Central lab data and vary according to the site). ALT:>1.25*ULN, AST:>1.25*ULN, ALP:>1.25*ULN, Total Bilirubin:>1.1*ULN, Serum Lipase:>1.10*ULN, Creatinine:>1.1*ULN, Blood Urea Nitrogen:1.25*ULN, Hyperglycemia:>116 mg/dL, Hypoglycemia:<64 mg/dL, Hyponatremia:<132meq/L, Hypokalemia:<3.4 meq/L, Albumin:≥1g/dL decrease from baseline, <3 g/dL; Hypernatremia:>148 meq/L, Hyperkalemia:>5.6 meq/L, Hypokalemia:<3.4 meq/L, Hyperchloremia:>113 meq/L, Hypochloremia:<93 meq/L; ALT flare: on treatment (OT), >2*Baseline and >10*ULN; off treatment (OF), 2*end of dosing value and >10*ULN
Measure: Number of Participants With Laboratory Abnormalities: Serum Chemistry Time: On treatment : Day 1 through Week 100 + 5 days; Offtreatment = End of OT period through 24 weeks2 Randomized, Open-Labelled Study Evaluating the Antiviral Efficacy, Safety, and Tolerability of Continuing Lamivudine Therapy or Switching to Entecavir in Subjects With Chronic Hepatitis B With Detectable HBV DNA
This is a randomized, open-labelled, prospective 96-week study comparing the antiviral efficacy and safety of switching to entecavir 1 mg QD from lamivudine versus maintaining lamivudine 100 mg QD treatment in HBV-infected subjects currently receiving lamivudine monotherapy.
NCT00625560 Hepatitis B, Chronic Drug: Entecavir Drug: Lamivudine MeSH:Hepatitis A Hepatitis B Hepatitis B, Chronic Hepatitis
HPO:Hepatitis
Exclusion Criteria: - All subjects will be tested for presence of M204V/I mutations in the YMDD motif at baseline. --- M204V ---
Subjects with M204V/I mutations in the YMDD motif at baseline are not eligible for the study. --- M204V ---
Primary Outcomes
Measure: Percentage number of patients with HBV DNA < 60 IU/mL (Undetectable serum HBV DNA by PCR method) while on randomized therapy Time: at Week 96Secondary Outcomes
Measure: Percentage number of patients with HBV DNA < 60 IU/mL while on randomized therapy Time: at Week 48Measure: Percentage number of patients who developed drug resistant mutations while on randomized therapy Time: at Week 48 and Week 96
Measure: Change from baseline in mean HBV DNA Time: at Week 48 and 96
Measure: Percentage number of patients who achieved ALT normalization, HBeAg loss, HBe seroconversion, HBsAg loss and HBs seroconversion Time: at Week 48 and 96
Measure: Cumulative discontinuation rates due to lamivudine or entecavir resistance mutations and clinical breakthrough Safety assessment Time: Follow up period
3 A Multicenter Randomized Controlled Open-label Trial of Tenofovir vs. Tenofovir Plus Entecavir in Chronic Hepatitis B Patients With Genotypic Resistance to Entecavir and Partial Virologic Response to Ongoing Treatment
With the availability of potent nucloes(t)ide analogues (NA), such as tenofovir disoproxil fumarate (TDF) and entecavir (ETV), suppression of serum HBV DNA to undetectable levels by polymerase chain reaction (PCR) assays became achievable in most NA treatment-naïve patients. Until recently, however, many patients commenced antiviral treatment with inferior NAs prior to the availability of TDF or ETV, such as lamivudine (LAM) which has a low genetic barrier to resistance. ETV resistance increase up to 51% of patients after 5 years of ETV treatment in lamivudine-refractory patients. Resistance to ETV appears to occur through a two-hit mechanism with initial selection of M204V/I mutation followed by amino acid substitutions at rtT184, rtS202, or rtM250. In vitro studies showed that ETV-resistant mutations are susceptible to TDF, but there are little clinical data on the efficacy of TDF monotherapy in patients with ETV-resistance. On the other hand, there was a retrospective cohort study reporting that, with the combination of TDF and ETV, most of patients became HBV DNA undetectable after median 6 months of treatment. Probability of reaching complete HBV DNA suppression was not decreased in patients with ADV or ETV-resistance. Thus, there is no consistent treatment recommendation for patients with ETV-resistance. In this clinical trial, the investigators will clarify whether tenofovir monotherapy is as effective as tenofovir plus entecavir in inducing complete virologic response in CHB patients with genotypic resistance to ETV and partial virologic response to ongoing treatment.
NCT01639092 Chronic Viral Hepatitis B Without Delta-agent Drug: Tenofovir Drug: Tenofovir Drug: Entecavir MeSH:Hepatitis A Hepatitis B Hepatitis B, Chronic Hepatitis
HPO:Hepatitis
Resistance to ETV appears to occur through a two-hit mechanism with initial selection of M204V/I mutation followed by amino acid substitutions at rtT184, rtS202, or rtM250. --- M204V ---
Primary Outcomes
Description: The proportion of patients who achieve complete virologic response (serum HBV DNA concentrations below 15 IU/mL)
Measure: Proportion of patients with complete virologic response Time: at week 48 of treatmentSecondary Outcomes
Description: Changes in serum HBV DNA levels during 48 weeks of treatment
Measure: Changes in serum HBV DNA levels Time: at week 48, 96, 144, and 240 of treatmentMeasure: Proportion of patients with normal ALT Time: at week 48, 96, 144, and 240 of treatment
Measure: Proportion of patients with HBe-Ag loss or seroconversion Time: at week 48, 96, 144, and 240 of treatment
Description: The proportion of patients with resistance mutations to Entecavir or Tenofovir at week 48
Measure: Proportion of patients with resistance mutations to Entecavir or Tenofovir Time: at week 48, 96, 144, and 240 of treatmentDescription: Virologic breakthrough is defined as the increase in serum HBV DNA by >1 log10 (10-fold) above nadir after achieving virologic response as determined by at least 2 consecutive measurements of at least 2 weeks apart, during continued treatment
Measure: Proportion of patients with virologic breakthrough Time: at week 48, 96, 144, and 240 of treatmentDescription: The proportion of patients who achieve complete virologic response (serum HBV DNA concentrations below 15 IU/mL)
Measure: Proportion of patients with complete virologic response Time: at week 48, 96, 144, and 240 of treatment4 Investigation of Efficacy of Tenofovir Monotherapy in Comparison With Lamivudine Plus Adefovir in Patients With Chronic Hepatitis B Patients Who Had Achieved Complete Viral Suppression on Lamivudine Plus Adefovir Combination Therapy - Multicenter Randomized Open-label Controlled Trial
Little is known about efficacy of switching to tenofovir monotherapy for lam-resistant chronic hepatitis B patients who achieved a complete virological response to lamivudine plus adefovir. This study was to investigate the efficacy of switching to tenofovir monotherapy for lamivudine -resistant chronic hepatitis B patients with undetectable hepatitis B virus DNA while on lamivudine plus adefovir combination therapy
NCT03236584 Proportion of Patients With a Sustained Virological Response (Serum HBV DNA Proportion of Patients With a Sustained Virological Response (Serum HBV DNA < Proportion of Patients With a Sustained Virological Response (Serum HBV DNA <20 IU/mL) at Week 48 Drug: lamivudine plus adefovir combination Drug: Tenofovir Disoproxil Fumarate MeSH:Hepatitis B Hepatitis B, Chronic
Inclusion Criteria: - HBsAg (+) for > 6 months age >19 years antiviral resistance to LAM (rtL180M and/or M204V/I) currently receiving LAM plus ADV for more than 12 months HBV DNA levels <20 IU/ml on two consecutive tests of 3-month interval Exclusion Criteria: - Cr ≥1.5 mg/dL Evidence of decompensated liver disease Malignant neoplasm Coinfection with HIV, HCV Inclusion Criteria: - HBsAg (+) for > 6 months age >19 years antiviral resistance to LAM (rtL180M and/or M204V/I) currently receiving LAM plus ADV for more than 12 months HBV DNA levels <20 IU/ml on two consecutive tests of 3-month interval Exclusion Criteria: - Cr ≥1.5 mg/dL Evidence of decompensated liver disease Malignant neoplasm Coinfection with HIV, HCV Proportion of Patients With a Sustained Virological Response (Serum HBV DNA Proportion of Patients With a Sustained Virological Response (Serum HBV DNA < Proportion of Patients With a Sustained Virological Response (Serum HBV DNA <20 IU/mL) at Week 48 Hepatitis B Hepatitis B, Chronic null --- M204V ---
Inclusion Criteria: - HBsAg (+) for > 6 months age >19 years antiviral resistance to LAM (rtL180M and/or M204V/I) currently receiving LAM plus ADV for more than 12 months HBV DNA levels <20 IU/ml on two consecutive tests of 3-month interval Exclusion Criteria: - Cr ≥1.5 mg/dL Evidence of decompensated liver disease Malignant neoplasm Coinfection with HIV, HCV Inclusion Criteria: - HBsAg (+) for > 6 months age >19 years antiviral resistance to LAM (rtL180M and/or M204V/I) currently receiving LAM plus ADV for more than 12 months HBV DNA levels <20 IU/ml on two consecutive tests of 3-month interval Exclusion Criteria: - Cr ≥1.5 mg/dL Evidence of decompensated liver disease Malignant neoplasm Coinfection with HIV, HCV Proportion of Patients With a Sustained Virological Response (Serum HBV DNA Proportion of Patients With a Sustained Virological Response (Serum HBV DNA < Proportion of Patients With a Sustained Virological Response (Serum HBV DNA <20 IU/mL) at Week 48 Hepatitis B Hepatitis B, Chronic null --- M204V --- --- M204V ---
Primary Outcomes
Description: Proportion of patients with a sustained virological response (serum HBV DNA <20 IU/mL) at week 48
Measure: SVR Time: 48 WEEK5 Investigation of Efficacy of Tenofovir Monotherapy in Comparison With Entecavir Plus Tenofovir in Patients With Chronic Hepatitis B Patients Who Had Achieved Complete Viral Suppression on Entecavir Plus Tenofovir Combination Therapy-Multicenter Randomized Open-label Controlled Trial
Little is known about efficacy of switching to tenofovir monotherapy for multidrug-resistant chronic ehpatitis B patients who achieved a complete virological response to entecavir and tenofovir. This study aimed to investigate the efficacy of switching to tenofovir monotherapy for multidrug-resistant chronic hepatitis B patients with undetectable heaptitis B virus DNA while on tenofovir plus entecavir combination therapy.
NCT03236610 Proportion of Patients With a Sustained Virological Response (Serum HBV DNA Proportion of Patients With a Sustained Virological Response (Serum HBV DNA < Proportion of Patients With a Sustained Virological Response (Serum HBV DNA <20 IU/mL) at Week 48 Drug: tenofovir monotherapy Drug: tenofovir plus entecavir combination MeSH:Hepatitis B Hepatitis B, Chronic
Inclusion Criteria: - HBsAg (+) for > 6 months age >19 years antiviral resistance to LAM(rtL180M and/or M204V/I) & ADV (rtA181V/T and/or rtN236T) or ETV (rtT184A/C/F/G/I/L/S, rtS202G, or rtM250L/V, in addition to rtM204V/I) HBV DNA levels <20 IU/ml on two consecutive tests of 3-month interval currently receiving TDF+ETV for more than 12 months Exclusion Criteria: - Cr ≥1.5 mg/dL Evidence of decompensated liver disease Malignant neoplasm Coinfection with HIV, HCV Inclusion Criteria: - HBsAg (+) for > 6 months age >19 years antiviral resistance to LAM(rtL180M and/or M204V/I) & ADV (rtA181V/T and/or rtN236T) or ETV (rtT184A/C/F/G/I/L/S, rtS202G, or rtM250L/V, in addition to rtM204V/I) HBV DNA levels <20 IU/ml on two consecutive tests of 3-month interval currently receiving TDF+ETV for more than 12 months Exclusion Criteria: - Cr ≥1.5 mg/dL Evidence of decompensated liver disease Malignant neoplasm Coinfection with HIV, HCV Proportion of Patients With a Sustained Virological Response (Serum HBV DNA Proportion of Patients With a Sustained Virological Response (Serum HBV DNA < Proportion of Patients With a Sustained Virological Response (Serum HBV DNA <20 IU/mL) at Week 48 Hepatitis B Hepatitis B, Chronic null --- M204V ---
Inclusion Criteria: - HBsAg (+) for > 6 months age >19 years antiviral resistance to LAM(rtL180M and/or M204V/I) & ADV (rtA181V/T and/or rtN236T) or ETV (rtT184A/C/F/G/I/L/S, rtS202G, or rtM250L/V, in addition to rtM204V/I) HBV DNA levels <20 IU/ml on two consecutive tests of 3-month interval currently receiving TDF+ETV for more than 12 months Exclusion Criteria: - Cr ≥1.5 mg/dL Evidence of decompensated liver disease Malignant neoplasm Coinfection with HIV, HCV Inclusion Criteria: - HBsAg (+) for > 6 months age >19 years antiviral resistance to LAM(rtL180M and/or M204V/I) & ADV (rtA181V/T and/or rtN236T) or ETV (rtT184A/C/F/G/I/L/S, rtS202G, or rtM250L/V, in addition to rtM204V/I) HBV DNA levels <20 IU/ml on two consecutive tests of 3-month interval currently receiving TDF+ETV for more than 12 months Exclusion Criteria: - Cr ≥1.5 mg/dL Evidence of decompensated liver disease Malignant neoplasm Coinfection with HIV, HCV Proportion of Patients With a Sustained Virological Response (Serum HBV DNA Proportion of Patients With a Sustained Virological Response (Serum HBV DNA < Proportion of Patients With a Sustained Virological Response (Serum HBV DNA <20 IU/mL) at Week 48 Hepatitis B Hepatitis B, Chronic null --- M204V --- --- M204V ---
Primary Outcomes
Description: Proportion of patients with a sustained virological response (serum HBV DNA <20 IU/mL) at week 48
Measure: SVR at week 48 Time: 48 week