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Hepatitis APhase 4NCT02445703

Comparison of Immunization Schedules of Inactivated Hepatitis A Vaccine and Combined Hepatitis A and Hepatitis B Vaccine

A Phase 4 study testing Inactivated Hepatitis A vaccine (HAV) and Combined hepatitis A and hepatitis B vaccine (HABV) in people with Hepatitis A and Hepatitis B, run by Sinovac Biotech Co., Ltd at 1 site in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to compare the immunogenicity and safety of three different immunization schedules of inactivated hepatitis A vaccine (HAV) and/ or combined hepatitis A and B vaccine (HABV) in healthy Chinese infants. Read more about this study

Who is it for?
Ages 18 to 24 monthsHealthy volunteers can take part
Conditions the study is for
Hepatitis A, Hepatitis B
What is being tested?
Inactivated Hepatitis A vaccine (HAV) and Combined hepatitis A and hepatitis B vaccine (HABV)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
301 participants
Where
1 siteChina
Study dates
May 2014to Jun 2016
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 24 months
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • Healthy infants between 18 and 24 months old;
  • Have not received hepatitis A vaccine before;
  • Completed hepatitis B vaccine full immunization schedule;
  • Written consent of the guardian of each participant;

Who cannot join

  • History of allergy to vaccine(s), or history of serious adverse reaction to vaccination, such as urticaria, dyspnea, angioneurotic edema, or abdominal pain;
  • Autoimmune disease or immunodeficiency;
  • Any acute disease that made the conditions of the person unsuitable for vaccination
  • Administration of any live attenuated vaccine within 14 days prior to the injection;
  • Administration of any subunit vaccine or inactivated vaccine within 7 days prior to the injection;
  • Administration of treatment of immunosuppressants (e.g., corticosteroid) within 1 month prior to the injection, or planning for such treatment during this study;
Show all 12Show fewer
  • Body temperature > 37.0 °C before injection;
  • Based on the evaluation of the investigator, there was any other factor that indicating the person was unsuitable for this study;
  • Any acute infectious disease, body temperature > 38.5 °C or acute attacks of chronic diseases within 3 days prior to the second injection;
  • Administration of blood product or other investigational drug during this study;
  • Occurrence of adverse event at grade 3 or higher and the event was related to the first injection;
  • The investigator or the Ethic Committee decided that the subject should be excluded;

Trial locations and contacts

1 site in 1 country.

China1 site
  • Hunan Provincial Center for Disease Control and Prevention

    Changsha, Hunan, 410005

Other trials in China

About this study

Official title: Phase IV Immunogenicity and Safety Study of Different Immunization Schedules of Inactivated Hepatitis A Vaccine (HAV) and/ or Combined Hepatitis A and Hepatitis B Vaccine (HABV) in Healthy Chinese Infants

The purpose of this study is to compare the immunogenicity and safety of three different immunization schedules of inactivated hepatitis A vaccine (HAV) and/ or combined hepatitis A and B vaccine (HABV) in healthy Chinese infants.

Read the detailed description

This study is a randomized double-blind, single-center, phase IV clinical trial. The purpose of this study is to compare the immunogenicity and safety of three different immunization schedules of inactivated hepatitis A vaccine (HAV) and/ or combined hepatitis A and B vaccine (HABV) in healthy Chinese infants between 18 and 24 months old. The subjects were randomly assigned into 3 groups. Subjects in group 1 each received 2 doses of HAV with a 6-month interval (at day 0 and month 6); subjects in group 2 each received 1 dose of HAV at day 0 and 1 dose of HABV at month 6; subjects in group 3 each received 2 doses of HABV with a 6-month interval (at day 0 and month 6).

Being tested
Inactivated Hepatitis A vaccine (HAV), Combined hepatitis A and hepatitis B vaccine (HABV)
Medical subject headings
Hepatitis A, Hepatitis B

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Inactivated Hepatitis A vaccine (HAV)Biological

    Also called Healive (Sinovac Biotech Ltd.); lot No.: 201308046

    Dosage of HAV is 250u hepatitis A antigen/0.5ml/dose.

  • Combined hepatitis A and hepatitis B vaccine (HABV)Biological

    Also called Bilive (Sinovac Biotech Ltd.); lot No.: 201307017

    Dosage of HABV is 250u hepatitis A antigen and 5µg hepatitis B antigen/0.5ml/dose

Study groups in NCT02445703
Study groupRoleWhat they receive
Group 1 (HAV + HAV)ExperimentalIntervention: Inactivated Hepatitis A vaccine (HAV); Subjects in this group each received 2 doses of inactivated HAV with a 6-month interval (day 0, month 6); Route of administration: intramuscular injection in deltoid region;
Receives: Biological: Inactivated Hepatitis A vaccine (HAV)
Group 2 (HAV + HABV)ExperimentalIntervention: Inactivated Hepatitis A vaccine (HAV) and Combined hepatitis A and hepatitis B vaccine (HABV); Subjects in this group each received 1 dose of inactivated HAV at day 0, and 1 dose of HABV at month 6. Route of administration: intramuscular injection in deltoid region;
Receives: Biological: Inactivated Hepatitis A vaccine (HAV); Biological: Combined hepatitis A and hepatitis B vaccine (HABV)
Group 3 (HABV + HABV)ExperimentalIntervention: Combined hepatitis A and hepatitis B vaccine (HABV); Subjects in this group each received 2 doses of HABV with a 6-month interval (day 0, month 6); Route of administration: intramuscular injection in deltoid region;
Receives: Biological: Combined hepatitis A and hepatitis B vaccine (HABV)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The Post-immunization Seropositivity Rates (SPR) to Hepatitis A

    The post-immunization SPR is the percent of participants with anti-HAV titers ≥ 20 mIU/mL at month 7. Anti-HAV titers were detected in participants' serum samples using electrochemiluminescence immunoassay.

    Measured: 7 months

Secondary outcomes (4)
  1. The Post-immunization Geometric Mean Concentration (GMC) of Hepatitis A Antibody (anti-HAV)

    The post-immunization GMC values of anti-HAV were measured using electrochemiluminescence immunoassay in serum samples collected at month 7.

    Measured: 7 months

  2. The Post-immunization GMC of Hepatitis B Surface Antibody (HBsAb)

    The post-immunization GMC values of HBsAb were detected using electrochemiluminescence immunoassay in serum samples collected at month 7.

    Measured: 7 months

  3. The Post-immunization SPR to Hepatitis B

    The post-immunization SPR is the percent of participants with HBsAb titer ≥ 10 mIU/mL at month 7. HBsAb titers were detected in participants' serum samples using electrochemiluminescence immunoassay.

    Measured: 7 months

  4. Occurrence of Adverse Events (AEs)

    AE information was collected after first injection (day 0) until month 7. Each AE case was reviewed by the investigator to determine whether or not it was an adverse reaction (related to the vaccination). After each injection, a 30-minute safety observation was conducted immediately, and body temperature and solicited adverse events (AEs) within 72 hours were recorded. Unsolicited AEs information was collected from day 0 (after injection) to month 7.

    Measured: 7 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 May 2015 (estimated)
  2. Study startMay 2014
  3. Primary completionJan 2015
  4. Study completionJun 2016

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
301 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02445703
Sponsor's protocol ID
PRO-HAB-4005
Status last verified
May 2015
First submitted
13 May 2015
Last updated
27 Jul 2021
Results posted
No
Data monitoring committee
No

Publications

  • Li F, Hu Y, Zhou Y, Chen L, Xia W, Song Y, Tan Z, Gao L, Yang Z, Zeng G, Han X, Li J, Li J. A Randomized Controlled Trial to Evaluate a Potential Hepatitis B Booster Vaccination Strategy Using Combined Hepatitis A and B Vaccine. Pediatr Infect Dis J. 2017 May;36(5):e157-e161. doi: 10.1097/INF.0000000000001535.

    PubMed 28060048

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Inactivated Hepatitis A vaccine (HAV) and Combined hepatitis A and hepatitis B vaccine (HABV) in people with Hepatitis A and Hepatitis B, run by Sinovac Biotech Co., Ltd at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 27 Jul 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The Post-immunization Seropositivity Rates (SPR) to Hepatitis A (time frame: 7 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02445703, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Jul 2021.

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