NCT03212911

Brief Summary

The finding of isolated hepatitis B core antibody (isolated HBc) in absent of recent active hepatitis could cause by several scenarios, including false positive, remote infection without viremia, and occult infection with low viremia. Hepatitis B virus (HBV) vaccine booster could be a great prevention strategy for those who do not have HBV viremia. There is no standard consensus for management of this issue especially among HIV infected population. In addition, prior studies revealed that HIV-infected individuals had lower immunologic response to HBV vaccine than general population. This study intends to compare the immune response and safety of 4- versus 3-standard dose of hepatitis B virus vaccination in HIV-infected adults who has isolated HBc. The immunologic response will be evaluated after the participants receive vaccination.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
96

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started Jul 2017

Shorter than P25 for phase_4

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 1, 2017

Completed
5 days until next milestone

First Submitted

Initial submission to the registry

July 6, 2017

Completed
5 days until next milestone

First Posted

Study publicly available on registry

July 11, 2017

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2018

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2018

Completed
Last Updated

July 11, 2017

Status Verified

July 1, 2017

Enrollment Period

7 months

First QC Date

July 6, 2017

Last Update Submit

July 6, 2017

Conditions

Keywords

HBV vaccination, HIV, isolated anti-HBc

Outcome Measures

Primary Outcomes (1)

  • Immunologic response to 4 versus 3 doses of HBV vaccination in HIV-infected adults with isolated anti-HBc antibody, demonstrated by percentage of responders (with anti-HBs Ab ≥ 10 mIU/mL ) at week 28

    Immunologic response to 4 versus 3 doses of HBV vaccination in HIV-infected adults with isolated anti-HBc antibody, demonstrated by percentage of responders (with anti-HBs Ab ≥ 10 mIU/mL ) at week 28

    28 weeks after the first dose of HBV vaccination

Secondary Outcomes (6)

  • Anamnestic response at week 4

    4 weeks after the first dose of HBV vaccination

  • Percentage of responders (with anti-HBs Ab ≥ 10 mIU/mL) at month 12

    12 months after the first dose of HBV vaccination

  • Percentage of high-level responders (with anti-HBs Ab ≥ 100 mIU/mL) at week 28 and month 12

    28 weeks and 12 months after the first dose of HBV vaccination

  • Intensity and frequency of vaccine adverse event (AE)

    1 year

  • Geometric mean titers of anti-HBs Ab at week 28 and month 12

    28 weeks and 12 months after the first dose of HBV vaccination

  • +1 more secondary outcomes

Study Arms (2)

3-standard dose HBV vaccination group

ACTIVE COMPARATOR

participants will receive 3 standard doses of HBV vaccination at 0, 1, 6 months

Biological: Hepatitis B vaccine

4-standard dose HBV vaccination group

ACTIVE COMPARATOR

participants will receive 4 standard doses of HBV vaccination at 0, 1, 2, 6 months

Biological: Hepatitis B vaccine

Interventions

Hepatitis B vaccine (20 mcg/ml) 1 ml intramuscular injection in 3 (at 0, 1, 6 months) or 4 doses (0, 1, 2, 6 months)

3-standard dose HBV vaccination group4-standard dose HBV vaccination group

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Aged ≥ 18 years
  • On combination antiretroviral therapy (cART)
  • CD4 ≥ 200 cell/mm3 for ≥ 1 year
  • HIV viral load \< 20 copies/ml for ≥ 1 year
  • Isolated anti-HBc Ab (negative HBsAg, anti-HBs Ab) and negative anti-HCV at screening

You may not qualify if:

  • Pregnancy
  • Previous HBV vaccination
  • Intolerance to any component of HBV vaccine
  • Transaminitis in the past 3 months (≥ 5 UNL)
  • Ongoing opportunistic infection (OI)
  • Active malignancy, with current chemotherapy or radiotherapy
  • Systemic steroid therapy (≥ 0.5 mg/kg/day) or any immunomodulating therapy in the last 6 months
  • Other immunocompromised disorders (e.g. solid organ transplant)
  • Asplenism
  • Renal insufficiency (CrCl ≤ 30 mL/min)
  • Decompensated cirrhosis (Child-Pugh C)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Maharaj Nakorn Chiang Mai Hospital, Department of medicine, Chiang Mai University

Muang, Chiang Mai, Chiang Mai, 50200, Thailand

RECRUITING

Related Publications (1)

  • Laksananun N, Praparattanapan J, Kotarathititum W, Supparatpinyo K, Chaiwarith R. Immunogenicity and safety of 4 vs. 3 standard doses of HBV vaccination in HIV-infected adults with isolated anti-HBc antibody. AIDS Res Ther. 2019 May 3;16(1):10. doi: 10.1186/s12981-019-0225-3.

MeSH Terms

Interventions

Hepatitis B Vaccines

Intervention Hierarchy (Ancestors)

Viral Hepatitis VaccinesViral VaccinesVaccinesBiological ProductsComplex Mixtures

Study Officials

  • Romanee Chaiwarith, MD

    Chiang Mai University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Romanee Chaiwarith, MD

CONTACT

Quanhathai Kaewpoowat, MD

CONTACT

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Masking Details
No masking
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: Open-label, randomized controlled trial (RCT) with 1:1 allocation in parallel arms
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

July 6, 2017

First Posted

July 11, 2017

Study Start

July 1, 2017

Primary Completion

February 1, 2018

Study Completion

July 1, 2018

Last Updated

July 11, 2017

Record last verified: 2017-07

Data Sharing

IPD Sharing
Will not share

Locations