Antibody Persistence & Immune Memory in Healthy Adults Previously Vaccinated With Twinrix Adult

NCT ID: NCT01000324

Last Updated: 2018-09-04

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE4
• Total Enrollment: 44 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2009-11-06
• Study Completion Date: 2014-07-25

Brief Summary

This study will evaluate the persistence of the immune response to HAV (Hepatitis A Virus) antigens and HBs (Hepatitis B surface) antigens in healthy adults previously vaccinated with GlaxoSmithKline (GSK) Biologicals' Twinrix Adult. The subjects will be invited for blood sampling 16, 17, 18, 19 and 20 years after vaccination to evaluate the antibody persistence. For subjects in whom low circulating antibodies are detected, the presence of immune memory against hepatitis A & B antigens will be investigated by the administration of a challenge dose of the appropriate vaccine (Havrix and/or Engerix-B) at the next planned visit.

No new subjects will be recruited during this study.

Conditions

Hepatitis A; Hepatitis B

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: PREVENTION
• Blinding Strategy: NONE

Study Groups

Twinrix Group

Pooled group of subjects from groups who were vaccinated with either Lot 1, Lot 2 or Lot 3 of Twinrix in the primary study according to a 0, 1, 6-Month schedule

Group Type: EXPERIMENTAL

Blood sampling

Intervention Type: PROCEDURE

Blood sampling at Year 16, 17, 18, 19 and 20 and at the time of challenge dose administration and 14 days and one month after challenge dose administration (if challenge dose needed).

Engerix-B

Intervention Type: BIOLOGICAL

Engerix-B will be administered to subjects who are not seroprotected against hepatitis B

Havrix

Intervention Type: BIOLOGICAL

Havrix will be administered to subjects who are seronegative for anti-HAV antibodies

Interventions

Blood sampling

Blood sampling at Year 16, 17, 18, 19 and 20 and at the time of challenge dose administration and 14 days and one month after challenge dose administration (if challenge dose needed).

Intervention Type: PROCEDURE

Engerix-B

Engerix-B will be administered to subjects who are not seroprotected against hepatitis B

Intervention Type: BIOLOGICAL

Havrix

Havrix will be administered to subjects who are seronegative for anti-HAV antibodies

Intervention Type: BIOLOGICAL

Eligibility Criteria

Inclusion Criteria

All subjects must satisfy the following criteria at entry into each of the long-term follow-up visits:

• Subjects who the investigator believes that they can and will comply with the requirements of the protocol should be enrolled in the study.
• A male or female who received the complete primary vaccination course in the primary study Hepatitis A and B vaccine (HAB), HAB-028 (208127/021).
• Written informed consent obtained from the subject.

All subjects must satisfy the following criteria at entry into the challenge dose phase:

• Subjects who the investigator believes that they can and will comply with the requirements of the protocol.
• A male or female who received the complete primary vaccination course in the primary study HAB-028 (208127/021).
• Written informed consent obtained from the subject.
• Subjects who participated in the long-term follow-up (LTFU) phase of the HAB-028 (208127/021) study and for whom the antibody concentrations were below the cut-off at the last available follow-up time-point.
• Female subjects of non-childbearing potential may be enrolled in the study.
• Female subjects of childbearing potential may be enrolled in the study, if the subject:
• has practiced adequate contraception for 30 days prior to vaccination, and
• has a negative pregnancy test on the day of vaccination, and
• has agreed to continue adequate contraception for two months after the administration of the challenge dose.

Exclusion Criteria

The following criteria should be checked before entry into each of the long-term follow-up visits. If any exclusion criterion applies, the subject must not be included in the study:

• Use of any investigational or non-registered product within 30 days prior to blood sampling.
• Administration of a hepatitis A, hepatitis B or combined hepatitis A and B vaccine outside the study procedures, since the primary study HAB-028 (208127/021).
• History of hepatitis A or hepatitis B infection since the primary study HAB-028 (208127/021).
• Administration of hepatitis A or hepatitis B immunoglobulins and/or any blood products within three months prior to blood sampling.

The following criteria should be checked before the challenge dose is administered. If any apply, the subject must not be included in the challenge dose phase:

• Use of any investigational or non-registered product within 30 days prior to study start or planned use during the study.
• Administration of a hepatitis A, hepatitis B or combined hepatitis A and B vaccine between the last LTFU visit and the challenge dose visit.
• History of hepatitis A or hepatitis B infection between the last LTFU visit and the challenge dose visit.
• History of anaphylactic reactions following the administration of vaccines.
• History of any reaction or hypersensitivity likely to be exacerbated by any component of the vaccines.
• Acute disease and/or fever at the time of enrolment.
• Pregnant or lactating female.
• Female planning to become pregnant or planning to discontinue contraceptive precautions.

• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

GlaxoSmithKline

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

GSK Clinical Trials

Role: STUDY_DIRECTOR

GlaxoSmithKline

Locations

GSK Investigational Site

Wilrijk, , Belgium

Countries

Belgium

References

Agrawal A, Kolhapure S, Andani A, Ota MOC, Badur S, Karkada N, Mitra M. Long-Term Persistence of Antibody Response with Two Doses of Inactivated Hepatitis A Vaccine in Children. Infect Dis Ther. 2020 Dec;9(4):785-796. doi: 10.1007/s40121-020-00311-8. Epub 2020 Jul 24.

Reference Type: DERIVED

PMID: 32710245 (View on PubMed)

Study Documents

Document Type: Individual Participant Data Set

For additional information about this study please refer to the GSK Clinical Study Register

View Document

Document Type: Dataset Specification

For additional information about this study please refer to the GSK Clinical Study Register

View Document

Document Type: Study Protocol

For additional information about this study please refer to the GSK Clinical Study Register

View Document

Document Type: Informed Consent Form

For additional information about this study please refer to the GSK Clinical Study Register

View Document

Document Type: Annotated Case Report Form

For additional information about this study please refer to the GSK Clinical Study Register

View Document

Document Type: Clinical Study Report

For additional information about this study please refer to the GSK Clinical Study Register

View Document

Document Type: Statistical Analysis Plan

For additional information about this study please refer to the GSK Clinical Study Register

View Document

Related Links

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Other Identifiers

112267

Identifier Type: -

Identifier Source: org_study_id