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A study to comparison of tenofovir monotherapy with entecavir-adefovir combination in suboptimal responder for lamivudine-adefovir rescue therapy in chronic hepatitis B patients with YMDD mutation

A randomized, multicenter, open-label study to comparison of tenofovir monotherapy with entecavir-adefovir combination in suboptimal responder for lamivudine plus adefovir rescue therapy in chronic hepatitis B patients with YMDD mutation

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
CRIS
Registry ID
KCT0000627
Enrollment
60
Registered
2013-01-10
Start date
2013-08-14
Completion date
Unknown
Last updated
2019-03-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Interventions

Drug : In experimental group, tenofovir 300 mg will be introduced once daily during 96 weeks and entecavir 1 mg and adefovir 10 mg will be introduced once daily during 96 weeks in comparer group.

Sponsors

Soon Chun Hyang University Hospital Cheonan
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Age, 20 Years to 75 Years 2) HBsAg positive at least 6 months or more 3) Confirmed emergence of YMDD mutations (rtM204) with/without compensatory mutation (rtL180) with test for mutation profile and with virologic breakthrough (? serum HBV DNA > 1 log IU/mL at any time before screening 4) Received ADV-LAM combination therapy at least 24 weeks 5) Serum HBV DNA positive in real-time PCR assay despite continued preceding LAM and ADV combination therapy 6) Serum HBV DNA >60 IU/mL at screening for this study

Exclusion criteria

Exclusion criteria: 1) Confirmed emergence of such drug resistant mutations (rtI169, rtT184, rtS202, rtM250) at any time before screening 2) Patient with decompensated cirrhosis (uncontrolled ascites, history of variceal bleeding, history of hepatic encephalopathy, Child-Pugh score > 8) 3) Patient has evidence of renal insufficiency defined as eGFR < 60 ml/min (using the Cockcroft-Gault equation) 4) Patient has received interferon or other immunomodulatory treatment for HBV infection in the 6 months before screening for this study. 5) Patient has medical condition that requires concurrent use of systemic corticosteroid or other immunosuppressive agent (including chemotherapeutic agent) 6) Patient is currently abusing alcohol (more than 40 g/day in men, 20 g/day in women) or illicit drugs 7) Patient has concomitant other chronic viral infection (HCV or HIV) 8)Patient has one or more additional known primary or secondary causes of liver disease, other than hepatitis B (e.g., autoimmune hepatitis, hemochromatosis, alpha-1 antitrypsin deficiency, Wilson's Disease, other congenital or metabolic conditions affecting the liver, congestive heart failure or other severe cardiopulmonary disease, etc.). 9) Patient is pregnant or breastfeeding 10) Patient has a history of HCC or findings suggestive of possible HCC, such as suspicious foci on imaging studies. In patients with such findings, HCC should be ruled-out prior to randomizing the patient for the present study. 11) A history of treated malignancy (other than HCC) is allowable if the patient's malignancy has been in complete remission, off chemotherapy and without additional surgical intervention, during the preceding three years. 12) Patient has severe bone disease (osteomalacia, chronic osteomyelitis, osteogenesis imperfect, osteochondroses)

Design outcomes

Primary

MeasureTime frame
Proportion of patients with complete virological response (HBV-DNA < 60 IU/mL) at week 96

Secondary

MeasureTime frame
Proportion of patients with resistance mutations to adefovir, entecavir, or tenofovir;Changes in serum HBV DNA level and mean levels during 96 weeks of treatment;Proportion of patients with normal ALT ;Proportion of patients with HBeAg loss or seroconversion;Changes in serum HBsAg levels during 96 weeks of treatment;Proportion of patients with developing adverse event and fatal complications, such as decompensated cirrhosis, hepatocellular carcinoma (HCC);Drug adherence and economic evaluations

Countries

Korea, Republic of

Contacts

Public ContactSae Hwan Lee

Soon Chun Hyang University Hospital Cheonan

Outcome results

None listed

Source: CRIS (via WHO ICTRP) · Data processed: Feb 27, 2026