Hepatitis B Virus Vaccination in HIV-positive Patients and Individuals at High Risk for HIV Infection

  • End date
    Dec 31, 2023
  • participants needed
  • sponsor
    National Taiwan University Hospital
Updated on 24 January 2021
HIV Infection
hepatitis b antigen
HIV Vaccine
immune globulin
hepatitis b core antibody


The primary aim of this open-label, randomized control trial is to compare the immunogenicity at week 28 after 20g HBV vaccine (at week 0, 4, 24) versus 40g HBV vaccine (40-g at week 0, 4, 24 week) among HIV-positive patients or HIV-negative MSM who were born in Taiwan after July 1986 and tested negative for all HBV serological markers. The secondary aims are to assess the safety of double-dose HBV vaccination, the proportions of high-level responders (anti-HBs antibody >100 mIU/ml) at weeks 28 and 48, the serological responses at week 48, and incident HBV infection (indicated by appearance of anti-HBc and/or HBsAg) at week 48.


I. Study procedures:

  1. Well explain, complete inform and consent documents
  2. A blood test for hepatitis B surface antigen (HBsAg), anti-hepatitis B surface antibody (anti-HBs antibody), anti-hepatitis B core antibody (anti-HBc antibody), anti-HCV and RPR will be performed first.
  3. The patients with all negative seromarkers (within 1 month) will be allocated to two groups (random blank=4), a standard-dose booster of 20g and a double-dose booster of 40g. For patients receiving 40g, two 20g of vaccines are injected at both sides of deltoid muscles. The schedules of booster vaccination are the same in two groups, which is at 0, 1, 6 months.
  4. To detect and manage possible immediate and severe allergic reaction, patients who received vaccination will be observed for 30 minutes after injection.
  5. The solicited adverse effect will be recorded on the diary card if occurred in 7 days after each dose of vaccination.
  6. The titer of hepatitis B surface antibody will be examined before booster vaccination, at the 4th week, the 24th week, 28th week, 48th week. By comparing the responses in the two groups, the effect of different doses of booster vaccination can be evaluated. For those HIV-negative individuals at baseline, HIV screening test will be evaluated every 6 months during the study, at the 24th week, the 48th.
  7. To screen the acquisition of hepatitis B, the anti-HBc antibody and HBsAg will be examined at the 48th week
  8. To screen the acquisition of hepatitis C and syphilis, anti-HCV and RPR will be examined at the 24th week, the 48th week
  9. The results of the study will be informed by phone or the physician during the follow-up care.
  10. The serum/blood samples will be preserved in the research lab of the department of internal medicine and kept for 20 years. During this period, the sample will be applied or used in other studies after the patients and the Research Ethics Committee both agreed.
  11. During the follow-up care, the treatment or record of hospitalization will be recorded or reviewed.
  12. The participants will drop out of clinical trial when protocol violation occurred or the participant is not willing to continue.

Condition HIV infection, HIV Infections, Immunodeficiency, Primary Immunodeficiency Disorders, Hepatitis B, Hepatitis B, Primary Immunodeficiency Disorders, HIV Infections, Immunization; Infection, Immunization; Infection, human immunodeficiency virus, hiv disease, Immunization; Infection
Treatment Engerix-B
Clinical Study IdentifierNCT03854630
SponsorNational Taiwan University Hospital
Last Modified on24 January 2021


Yes No Not Sure

Inclusion Criteria

Men who have sex with men (MSM)
Birth date after 1986/7/1 and aged 20 years or older
Seronegative for HBsAg, anti-HBs (<10 mIU/ml), and anti-HBc at screening (within 1 month of the first dose)
Regularly receiving HIV care for HIV-positive patients over the past 6 months
Seeking VCT for at least once for HIV-negative patients over the past 12 months

Exclusion Criteria

Active infection or malignancy within 12 months of screening
Receiving chemotherapy, immunosuppressant, or IVIG within 12 months of screening
Received higher than 5 mg of prednisolone, including IV, oral, or topical form, per day for more than 1 weeks within 6 months of screening
Receiving HBV vaccination within 1 months of screening, or being allergic to HBV vaccine
Receiving other vaccination within 1 months of screening, such as influenza, pneumococcus, HPV, HAV, varicella vaccine
Stage 4 and 5 of chronic kidney disease (GFR<30 mL/min/1.73m), or receiving dialysis
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Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.

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If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

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Complete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.

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