At a glance
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A Multi-centre, One-arm Prospective Study to Evaluate Efficacy and Safety of Switching From Entecavir (ETV) to Tenofovir Disoproxil Fumarate (TDF) in Japanese Chronic Hepatitis B HBeAg-positive and HBV-DNA Undetectable Subjects
In Brief
A Phase 4 clinical trial evaluating Tenofovir Disoproxil Fumarate for Hepatitis B, Chronic. Completed, enrolled 75 participants across 18 sites.
Detailed Summary
Tenofovir Disoproxil Fumarate is a nucleos(t)ide analogue that inhibits Hepatitis B Virus (HBV) growth, and is marketed in Japan with an indication for inhibition of HBV growth in subjects with chronic hepatitis B associated with HBV growth and abnormal liver function. This study has been planned to evaluate the virological effects and safety of switching from ETV to TDF in chronic hepatitis B (hepatitis B e-antigen \[HBeAg\])-positive and HBV- deoxyribonucleic acid (DNA) undetectable subjects. This study is designed as a multi-center, one-arm, post-marketing clinical study to investigate the HBsAg reduction in subjects who have not achieved the long-term goal, the loss of hepatitis B surface antigen (HBsAg). The study will be conducted in HBeAg-positive and HBV-DNA undetectable subjects treated with ETV. After switching ETV to TDF, TDF will be administered for 96 weeks. Approximately 80 subjects will be screened to achieve 65 evaluable subjects.
Study Details
Timeline
Interventions
Tenofovir Disoproxil Fumarate is a nucleos(t)ide analogue that inhibits HBV growth. All subjects will receive one tablet of TDF 300 mg once daily orally for 96 weeks.