Hepatitis B, Chronic Clinical Trial
Official title:
A Multi-center, Randomized, Active Controlled, Double-blind, Parallel Group Comparison Study and Subsequent Open-label Study of GSK548470 in Patients With Compensated Chronic Hepatitis B Untreated With Nucleic Acid Analogue
The purpose of this study is to evaluate the efficacy and safety of GSK548470 administered once daily at a dose level of 300 mg to Japanese patients with compensated chronic hepatitis B untreated with any nucleic acid analogue. In efficacy, the non-inferiority of GSK548470 to ETV will be verified using the antiviral effect as the index.
This study is a multicenter, randomized, active comparator-controlled, double-blind, parallel-group comparison study in Japanese patients with compensated chronic hepatitis B untreated with any nucleic acid analogue and its subsequent open-label study. Efficacy and safety will be compared between once-daily dosing of GSK548470 300 mg and once-daily dosing of ETV 0.5 mg, and subsequently the efficacy and safety of GSK548470 administered long term will be investigated. A total of 165 subjects will be assigned to the GSK548470 group or the ETV group at a ratio of 2:1. The subjects will be assigned by stratified randomization in terms of HBe antigen and serum HBV-DNA level. The primary purpose is to verify the non-inferiority of GSK548470 to ETV using as an index the change amount of HBV-DNA level at Week 24 from the baseline level. The secondary purpose is to investigate the efficacy and safety of GSK548470 300 mg administered once daily for a long term. ;
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment
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