Tenofovir Alafenamide Switch Therapy in Chronic Hepatitis B

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age20+
SponsorTaichung Veterans General Hospital

About this trial

Chronic hepatitis B (CHB) patients may be unsatisfied to entecavir (ETV) therapy due to the inconvenience in drug taking, i.e., fasting for more than 2 hours and/or dose adjustment according to estimated glomerular filtration rate (eGFR). However, tenofovir alafenamide (TAF) has been approved to be highly effective and safe in patients with CHB, and is convenient in drug taking, i.e., once daily regardless food taking and renal function.Therefore,TAF can be a good option in CHB patients who are unsatisfied to ETV therapy. The aim of this prospective cohort study is to assess the improvement on satisfaction (including drug adherence) of TAF switch therapy in CHB patients who are unsatisfied to ETV therapy. In addition, with expected adherence improvement in TAF switch therapy, the efficacy of TAF switch therapy may be improved, and the efficacy benefits can be evaluated by the changes of some novel biomarkers, such as HBV core-related antigen (HBcrAg). The investigators therefore aim to conduct a prospective cohort study of TAF switch therapy for CHB patients who are unsatisfied to ETV therapy.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

At least 20 years of age

Detectable serum HBsAg

Chronic HBV infection under ETV therapy

ETV users who are unsatisfied with the efficacy and/or feel inconvenient of ETV therapy

Disqualifiers

End stage renal disease (estimated glomerular filtration rate [eGRF]< 15 mL/min/1.73m2) without dialysis

Co-infected with human immunodeficiency virus, hepatitis C virus, or hepatitis D virus

Any active malignancies

Under immunosuppressants

Trial population

This prospective cohort study will enroll CHB patients who are unsatisfied to ETV therapy. The patient selection in this study is essentially based on a principle of shared decision making, and not only the physician decides whether to change the treatment. In the initial screening period, study subjects will be selected according to the inclusion and exclusion criteria, therefore only patients who complain the efficacy and/or inconvenience of ETV therapy (Inclusion criteria 4), will be invited to join this study. After discussing with the physician together, the study subjects must sign the inform consents before going into the next step (baseline condition evaluation).

Trial design

Design model

Cohort

Time perspective

Prospective

Treatments tested in this trial

  • tenofovir alafenamide (TAF)

    Drug

    TAF switch therapy in CHB patients who are unsatisfied to ETV therapy.

Treatment groups

No treatment groups listed

Trial outcomes

Primary outcomes

1

Rate/ concentration of renal function markers

The changes of eGFR, urine protein, urine beta 2-microglubulin, etc.

Time frame
week 48
2

HBV viral load

Time frame
week 48
3

The satisfaction (including drug adherence) to TAF switch therapy

The changes of TSQM-9 questionnaire, MMAS-8 questionnaire

Time frame
week 48

Secondary outcomes

1

Rate/ concentration of renal function markers

The changes of eGFR, urine protein, urine beta 2-microglubulin, etc.

Time frame
week 144
2

HBV viral load

Time frame
week 144
3

The satisfaction (including drug adherence) to TAF switch therapy

The changes of TSQM-9 questionnaire, MMAS-8 questionnaire

Time frame
week 144
4

Concentration of biochemical markers

bilirubin, AST, ALT

Time frame
week 144

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Taichung Veterans General Hospital

Lead sponsor

Institute of Adherence to Medication

Collaborator