Hepatitis B Clinical Trial
Official title:
The Immune Responses After Hepatitis B Revaccination Doses in a Young Cohort
This prospective cohort study aims to provide the evidence-based clinical guide to help decide the revaccination doses of hepatitis B vaccine that the high-risk young adults without hepatitis B seroprotective antibodies (anti-HBs titer<10 mIU/mL) need to take.
Purpose For young adults born after the neonatal hepatitis B immunization program, especially those who were 20-33 years old after 1987, additional hepatitis B vaccination may have the benefit of strengthening protection from acute hepatitis B infection among high-risk groups. However, how many doses are most appropriate for the protection of high-risk groups is still an issue to be resolved. This study aims to provide the evidence-based clinical guide to help decide the revaccination doses of hepatitis B vaccine that the high-risk young adults without hepatitis B seroprotective antibodies (anti-HBs titer<10 mIU/mL) need to take. Materials and Methods From August 2021 to July 2024, the investigator will invite young adults born in Taiwan over the age of 20 and born after 1987, who have received a full course of hepatitis B vaccine at least three doses at their infant period. Those who are all negative for hepatitis B surface antibodies (anti-HBs) and surface antigens (HBsAg) are enrolled to 4 groups according to the anti-HBs titer concentration (anti-HBs titer between 2.5-10 mIU/mL is a low concentration, anti-HB titer less than 2.5 mIU/mL is an extreme low concentration) with one or two doses of hepatitis B vaccine (Engerix-B) administered, respectively. Each group recruits 60 cases to reach a total of 240 participants. Each participant was followed for 12 months, and the anti-HBs titer concentration was measured in 0, 7-10 days, 28 days, 24- 28 weeks, and 48-52 weeks. The investigator will calculate the anti-HBs titer reaction rate and immune response after receiving hepatitis B vaccine(s) at each stage, and do further univariate and multivariate analysis. Expected Results This prospective cohort study can help understand the difference in the anti-HBs titer response after 1 or 2 revaccination doses by the anti-HBs titer concentration as well as the two different types of hepatitis B vaccination in childhood It is expected to provide an important reference for the administration of hepatitis B vaccine in young adults of high-risk groups. ;
Status | Clinical Trial | Phase | |
---|---|---|---|
Completed |
NCT01182311 -
Duration of Long-term Immunity After Hepatitis B Virus Immunization
|
||
Completed |
NCT04971928 -
Phase 1 Study of GSK3228836 Pharmacokinetics in Participants With Hepatic Impairment
|
Phase 1 | |
Completed |
NCT03285620 -
A Study of AL-034 to Evaluate the Safety, Tolerability and Pharmacokinetics of Single and Multiple Doses in Healthy Participants
|
Phase 1 | |
Completed |
NCT01884415 -
Phase III, Study to Evaluate the Efficacy of Two Different HBV Vaccination Schemes in Patients With Hepatic Cirrhosis
|
Phase 3 | |
Recruiting |
NCT05404919 -
Utilization of Hepatitis B Virus NAT+ Donors for Hepatitis B Vaccinated Lung Transplant Candidates
|
Phase 2 | |
Completed |
NCT02153320 -
Study to Evaluate the Persistence of the Cellular and Humoral Immune Response Following Vaccinations With GlaxoSmithKline (GSK) Biologicals' Candidate Vaccines Containing HBsAg and Different Adjuvants in Healthy Adult Volunteers
|
Phase 1 | |
Completed |
NCT00352963 -
Immunogenicity & Safety Study of Combined/Separate Vaccine(s) Against Common Diseases in Infants (2,4,6 Months of Age).
|
Phase 3 | |
Completed |
NCT03567382 -
Arresting Vertical Transmission of Hepatitis B Virus
|
Phase 4 | |
Not yet recruiting |
NCT04056728 -
A Phase IV Study to Assess the Safety of EupentaTM Inj
|
Phase 4 | |
Not yet recruiting |
NCT03604016 -
Study to Assess Efficacy of Besifovir and L-carnitine in Chronic Hepatitis B Patients With Nonalcoholic Fatty Liver
|
Phase 4 | |
Completed |
NCT00753649 -
Immunogenicity and Safety of GSK Biologicals' Infanrix Hexa in Infants
|
Phase 4 | |
Recruiting |
NCT03027258 -
Point-of-Delivery Prenatal Test Results Through mHealth to Improve Birth Outcome
|
N/A | |
Completed |
NCT02540538 -
Safety and Immunogenicity of HBAI20 Hepatitis B Vaccine in Naive Adults and Non-responders
|
Phase 1 | |
Terminated |
NCT02604199 -
A Multi-dose Study of ARC-520 in Patients With Hepatitis B 'e' Antigen (HBeAg) Negative, Chronic Hepatitis B Virus (HBV) Infection
|
Phase 2 | |
Completed |
NCT02421666 -
A Comparative Trial of Improving Care for Underserved Asian Americans Infected With HBV
|
N/A | |
Completed |
NCT02169674 -
Hepatitis B Booster Study in Adolescence
|
Phase 4 | |
Completed |
NCT01917357 -
A Comparison of the Immunogenicity and Safety of Quinvaxem in Mono-dose Vials and Uniject
|
Phase 3 | |
Completed |
NCT01732354 -
Study for Consolidation Period of Chronic Hepatitis B
|
||
Completed |
NCT01368497 -
Entecavir/Pegylated Interferon in Immune Tolerant Children With Chronic Hepatitis B Virus (HBV) Infection
|
Phase 3 | |
Recruiting |
NCT01462981 -
Cohort of Hepatitis B Research of Amsterdam
|
N/A |