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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02582333
Other study ID # CF15240B
Secondary ID
Status Completed
Phase
First received
Last updated
Start date October 1, 2015
Est. completion date March 13, 2021

Study information

Verified date March 2021
Source Taichung Veterans General Hospital
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Background: Taiwan is one of the area with the highest prevalence of chronic hepatitis B (CHB), and many patients die of hepatitis B virus (HBV)-related cirrhosis or liver cancer that have been the leading causes of death in Taiwan for many years. For effectively treating CHB, antiviral therapy for CHB has been reimbursed by the National Health Insurance in Taiwan since 1998, and nucleos(t)ide analogues (NAs) can be used for patients with active hepatitis B and high viral load in a maximum duration of three years. However, there is a significant proportion of patients suffering from hepatitis B recurrence after discontinuation of NA therapy, and hepatitis B recurrence may result in liver cirrhosis and liver cancer. To the best of current knowledge, in what conditions that the NA therapy can be successfully discontinued without hepatitis recurrence remain largely unclear. Therefore, this study is designed to evaluate the clinical and virological changes of CHB patients after stopping NA therapy, and finding the prognostic indicators may be an important basis for stopping NA therapy in CHB patients in the future. Objectives: 1. To access the clinical and virological changes after stopping NA therapy 2. To determine important prognostic indicators for stopping NA therapy Methods: In this prospective cohort study, the investigators plan to recruit CHB patients who are indicated for stopping NA therapy in the outpatient clinics according to the inclusion and exclusion criteria of this study, and clinical and virological data will be collected during routine clinic visits after stopping NA therapy. Prognostic factors will be analyzed according the following data: 1. Patient characteristics: including age, sex, height, weight, waist circumference, history of alcohol drinking, antiviral therapy history, hepatitis history, and drug history. 2. Blood tests: During routine clinic visits and blood tests every 12 weeks or at hepatitis flare in the first 2 years after stopping NA therapy, liver function and virological status tests will be conducted for analysis.


Description:

Background: Taiwan is one of the area with the highest prevalence of chronic hepatitis B (CHB), and many patients die of hepatitis B virus (HBV)-related cirrhosis or liver cancer that have been the leading causes of death in Taiwan for many years. For effectively treating CHB, antiviral therapy for CHB has been reimbursed by the National Health Insurance in Taiwan since 1998, and nucleos(t)ide analogues (NAs) can be used for patients with active hepatitis B and high viral load in a maximum duration of three years. However, there is a significant proportion of patients suffering from hepatitis B recurrence after discontinuation of NA therapy, and hepatitis B recurrence may result in liver cirrhosis and liver cancer. To the best of current knowledge, in what conditions that the NA therapy can be successfully discontinued without hepatitis recurrence remain largely unclear. Therefore, this study is designed to evaluate the clinical and virological changes of CHB patients after stopping NA therapy, and finding the prognostic indicators may be an important basis for stopping NA therapy in CHB patients in the future. Objectives: 1. To access the clinical and virological changes after stopping NA therapy 2. To determine important prognostic indicators for stopping NA therapy Methods: In this prospective cohort study, the investigators plan to recruit CHB patients who are indicated for stopping NA therapy in the outpatient clinics according to the inclusion and exclusion criteria of this study, and clinical and virological data will be collected during routine clinic visits after stopping NA therapy. Prognostic factors will be analyzed according the following data: 1. Patient characteristics: including age, sex, height, weight, waist circumference, history of alcohol drinking, antiviral therapy history, hepatitis history, and drug history. 2. Blood tests: During routine clinic visits and blood tests every 12 weeks or at hepatitis flare in the first 2 years after stopping NA therapy, liver function and virological status tests will be conducted for analysis. Importance: To clinicians in treating chronic hepatitis B, this study will provide important data regarding the clinical courses after stopping NA therapy, and important prognostic indicators may be determined. These findings could help clinicians in decision making for discontinuation of NA therapy and booking follow-up schedules. To basic scientists, this study will provide the virological changes after stopping NA therapy, and these findings may help developing further virological researches.


Recruitment information / eligibility

Status Completed
Enrollment 347
Est. completion date March 13, 2021
Est. primary completion date October 1, 2020
Accepts healthy volunteers No
Gender All
Age group 20 Years and older
Eligibility Inclusion Criteria: 1. Age > or = 20 years old 2. Chronic hepatitis B patients who received tenofovir or entecavir as their first anti-HBV therapy 3. Patients who have received nucleos(t)ide analogue therapy for > 3 years or reached the stopping criteria of APASL ( HBeAg+ patients: HBeAg seroconversion > 12 months; HBeAg - patients: HBV DNA undetectable > 12 months) Exclusion Criteria: 1. History of liver cirrhosis or hepatocellular carcinoma 2. Recipients of liver transplantation 3. Concurrent malignancies (except curable skin cancers) 4. Concomitant use of immunosuppressants 5. Coinfection with HCV, HDV, HIV

Study Design


Intervention

Other:
Observation for clinical and virological changes
Only observation after stopping nucleos(t)ide analogue

Locations

Country Name City State
Taiwan Show Chwan Memorial Hospital Changhua
Taiwan Cheng Ching General Hospital-Chung Kang Branch Taichung
Taiwan Chung Shan Medical University Hospital Taichung
Taiwan Taichung Veterans General Hospital Taichung

Sponsors (1)

Lead Sponsor Collaborator
Taichung Veterans General Hospital

Country where clinical trial is conducted

Taiwan, 

Outcome

Type Measure Description Time frame Safety issue
Primary HBsAg seroconversion HBsAg negative, anti-HBs positive 2 years after stopping nucleos(t)ide analogue
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