Clinical Trials Logo

Clinical Trial Summary

Immunisation policies have strong influences on the epidemiology of hepatitis A and B infection. In Hong Kong, vaccines against both viruses have been available through different channels and programmes in the past 3 decades. To evaluate the changes in the prevalence of hepatitis A and B in the general population, a seroepidemiology study is conducted involving a prospective cross-sectional survey followed for serology testing. Eligible members of 1327 spatially random households would be invited to join the study by completing a questionnaire and providing blood samples, either by dried blood spots or venesection, for determining the presence of antigen and/or antibody against hepatitis B, as well as antibody against hepatitis A. The main measures comprise a set of metrics on the prevalence of hepatitis A and B. Analysis would be conducted to examine the association of risk factors with the tested markers and describe the attitudes towards viral hepatitis vaccination. The results would allow us to understand the transmission potential of hepatitis A and B in the community would be influenced by the changing disease epidemiology and coverage of vaccination, which inform the development of new vaccination strategies in Hong Kong


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT04371276
Study type Observational
Source Chinese University of Hong Kong
Contact
Status Completed
Phase
Start date September 1, 2018
Completion date May 31, 2022

See also
  Status Clinical Trial Phase
Completed NCT01476995 - Prognostic Indicators as Provided by the EPIC ClearView N/A
Completed NCT01195181 - Different PEG-interferon and Ribavirin Schedules for Chronic Hepatitis C in the Real Clinical Practice. Phase 4
Completed NCT01988753 - Non-invasive Biomarkers of Fibrosis in Pediatric Liver Diseases
Not yet recruiting NCT04113915 - Viral Hepatitis B and C Infection in Patients With Idiopathic Thrombocytopenic Purpura Treated With Triple Therapy
Recruiting NCT03743272 - Repeatability and Reproducibility of Multiparametric MRI
Completed NCT06360484 - Prevalence and Clinical Characterization of Hepatitis D Virus (HDV) Infection Among Sudanese Patients With Hepatitis B Virus
Recruiting NCT01766895 - Long-term Follow Up of Viral Hepatitis in Uremic Patients in Taiwan
Not yet recruiting NCT04222803 - VIRal Hepatitis and GAllstone Disease Study
Recruiting NCT04304612 - A Cost Effective and Time Saving Blood Test to Detect Six Human Bloodborne Infectious Diseases
Completed NCT04062253 - Addressing the Cascade of Care in Vulnerable Populations With Poor Access to Healthcare in Madrid
Enrolling by invitation NCT05207163 - Continuing Medical Education to Improve Knowledge of Viral Hepatitis B-C in Primary Healthcare Workers N/A
Recruiting NCT03933384 - Tenofovir Alafenamide Versus Entecavir for the Treatment of Chronic Hepatitis B Phase 4
Completed NCT01082419 - Acoustic Radiation Force Impulse Imaging (ARFI) : a New Technique to Assess Liver Elasticity N/A