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Chronic Hepatitis b Patients Switch to tAf After Discontinuation of Nucleoside Analogue — CHANGE  

Chronic Hepatitis b Clinical Trial

Official title:
The Clinical Efficacy of Tenofovir Alafenamide-switching Therapy in Patients With Chronic Hepatitis B Experiencing Clinical Flare-up After Discontinuation of Nucleos[t]Ide Analogues Therapy

Clinical Trial Summary

We will conduct a phase 4, multicenter, open-label trial at 7 academic centers in Taiwan. Chronic hepatitis B patients receiving oral antiviral therapy (entecavir [ETV], tenofovir disoproxil fumarate [TDF]) for at least 2 years, and fulfil the following nucleos(t)ide analogs discontinuation criteria. After nucleos(t)ide analogs discontinuation, patients had a clinical relapse and retreatment regimen switches to TAF. The protocol will be approved by Institutional Review Board (IRB) or Research ethic committee (REC) of each site and will be conducted in accordance with the principles of Declaration of Helsinki and the International Conference on Harmonization for Good Clinical Practice. Each patient provides written informed consent before enrollment.

Clinical Trial Description

Tenofovir alafenamide (TAF) is a new generation of oral antiviral drugs with similar antiviral activities to tenofovir disoproxil fumarate (TDF) and reduces the adverse effects of nephrotoxicity and bone mineral density reduction. This drug has already been reimbursed by National Health Insurance, and can be used for the treatment of patients with chronic hepatitis B. This is a single-arm prospective clinical trial to enroll patients who discontinued entecavir (ETV) and tenofovir disoproxil fumarate (TDF) and experienced a clinical hepatitis flare up. They can be retreated with TAF for 48 weeks without postponing a 3-month observation period for alanine aminotransferase (ALT) level. The virological control, ALT level recovery, and changes in liver fibrosis, hepatitis B surface antigen, hepatitis B core-associated antigen, and renal function will be observed during retreatment. In addition, a group of patients with the same characteristics who received retreatment with entecavir or TDF will be collected as a control group for comparison. We believe this study can help us understand the clinical benefits of switching to TAF for retreatment after hepatitis flare in patients to discontinue oral antiviral agents. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT04496882
Study type Interventional
Source National Taiwan University Hospital
Contact Tung-Hung Su, MD, PhD
Phone 886972651694
Email tunghungsu@gmail.com
Status Recruiting
Phase Phase 4
Start date September 9, 2020
Completion date December 31, 2023
View Details
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