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Hepatitis APhase 4NCT01865968

Comparison of Immunogenicity and Safety of Inactivated and Live Attenuated Hepatitis A Vaccines in Young Adults

A Phase 4 study testing Inactivated HAV vaccine and Live attenuated HAV vaccine in people with Hepatitis A, 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

A phase IV, randomization, single center, controlled clinical trial to compare the safety, immunogenicity,three-year immune persistence of inactivated hepatitis A vaccine (HAV) with one- or two-dose regimen and live attenuated HAV with one-dose regimen in Chinese young adults, and to evaluate the immunogenicity of a… Read more about this study

Who is it for?
Ages 16 to 25 yearsHealthy volunteers can take part
Conditions the study is for
Hepatitis A
What is being tested?
Inactivated HAV vaccine and Live attenuated HAV vaccine
Type of treatment
Vaccines
Could I receive a placebo?
No, everyone receives an active treatment
How many people
239 participants
Where
1 siteChina
Study dates
Oct 2008to Sep 2012
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 16 to 25 years
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult

Who may be able to join

  • Healthy undergraduate students aged 16 to 25 years
  • Sign the informed consent
  • Provide ID

Who cannot join

  • Axillary temperature > 37.0 centigrade at the time of dosing
  • Subject that has a medical history of any of the following: allergic history, or allergic to any ingredient of vaccine
  • Serious adverse reactions to vaccines such as anaphylaxis, hives, respiratory difficulty, angioedema, or abdominal pain
  • Autoimmune disease or immunodeficiency
  • Congenital malformation, developmental disorders or serious chronic diseases (such as Down's syndrome, diabetes, sickle cell anemia or neurological disorders)
  • Bleeding disorder diagnosed by a doctor (e.g. factor deficiency, coagulopathy, or platelet disorder requiring special precautions) or significant bruising or bleeding difficulties with IM injections or blood draws
Show all 15Show fewer
  • History or family history of convulsions, epilepsy, brain disease and psychiatric
  • History of any blood products within 3 months
  • Administration of any other investigational research agents within 30 days
  • Administration of any live attenuated vaccine within 30 days
  • Administration of subunit or inactivated vaccines within 14 days
  • Any medical, psychiatric, social condition, occupational reason or other responsibility that, in the judgment of the investigator, is a contraindication to protocol participation or impairs a volunteer's ability to give informed consent
  • anti-HBsAg positive
  • anti-HAV positive
  • Pregnancy test result is positive

Trial locations and contacts

1 site in 1 country.

China1 site
  • Nanchang Center for Disease prevention and Control

    Nanchang, Jiangxi, 330000

Other trials in China

About this study

Official title: Phase IV Trial to Compare the Safety, Immunogenicity,Three-year Immune Persistence of Inactivated Hepatitis A Vaccine (HAV) With One- or Two-dose Regimen and Live Attenuated HAV With One-dose Regimen in Chinese Young Adults, and to Evaluate the Immunogenicity of a Booster Dose.

A phase IV, randomization, single center, controlled clinical trial to compare the safety, immunogenicity,three-year immune persistence of inactivated hepatitis A vaccine (HAV) with one- or two-dose regimen and live attenuated HAV with one-dose regimen in Chinese young adults, and to evaluate the immunogenicity of a booster dose.

Read the detailed description

Healthy undergraduate students aged 16 to 25 years with anti-HAV negative were randomly divided into three groups. Group A and B were administrated with one-dose inactivated and live attenuated hepatitis A vaccines respectively; Group C was immunized with two doses of an inactivated vaccine with 6 months apart. Blood samples were collected at month 1, and 12, 24 and 36 for anti-HAV titers determination. Safety observation in 30 minutes' duration after vaccinations and injection-site reactions and systemic reactions for three consecutive days were recorded to assess the safety of investigational vaccines. At Month 36, subjects who received one dose of inactivated or live attenuated HAV were administrated a booster dose and then were taken blood samples one month later for anti-HAV titers determination.

Conditions
Hepatitis A
Being tested
Inactivated HAV vaccine, Live attenuated HAV vaccine
Keywords
inactivated HAV vaccine; live attenuated HAV vaccine; immunogenicity; safety
Medical subject headings
Hepatitis A

What participants receive

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

  • Inactivated HAV vaccineBiological

    Also called Inactivated hepatitis A vaccines

    Hepatitis A vaccine (Healive), 500 u per dose per 0.5 millilitre. Vaccines will be administered with one-dose or two-dose regimen of the arm 6 months apart in the deltoid muscle.

  • Live attenuated HAV vaccineBiological

    Also called Live attenuated hepatitis A vaccines

    Live attenuated hepatitis A vaccine, 6.50 lgCCID50 per dose per 0.5 millilitre. Vaccines will be administered with one-dose regimen in the deltoid muscle.

Study groups in NCT01865968
Study groupRoleWhat they receive
Inactivated HAV vaccineExperimentalHealthy undergraduate students aged 16 to 25 years with anti-HAV negative received inactivated HAV vaccine containing 500u/vial with one-dose regimen.
Receives: Biological: Inactivated HAV vaccine
Live attenuated HAV vaccineActive comparatorHealthy undergraduate students aged 16 to 25 years with anti-HAV negative received live attenuated HAV vaccine containing 6.50 lgCCID50/vial with one-dose regimen.
Receives: Biological: Live attenuated HAV vaccine
Two-dose inactivated HAV vaccineExperimentalHealthy undergraduate students aged 16 to 25 years with anti-HAV negative received inactivated HAV vaccine containing 500u/vial with two-dose regimen.
Receives: Biological: Inactivated HAV vaccine

What is being measured

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

  1. concentration of antibody to hepatitis A virus

    Anti-HAV antibody geometric mean concentrations pre-vaccination, and at month 1, and 12, 24 and 36, and 1 months (month 37) after the booster vaccination.

    Measured: 37 months

Secondary outcomes (1)
  1. reported side effects and adverse events

    After each dose, solicited injection-site and general adverse events (AEs) were recorded for 7 days and unsolicited AEs were recorded for 28 days.

    Measured: 37 months

Timeline

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

  1. First posted31 May 2013 (estimated)
  2. Study startOct 2008
  3. Primary completionDec 2011
  4. Study completionSep 2012

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
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
239 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01865968
Sponsor's protocol ID
PRO-HA-4009
Status last verified
May 2013
First submitted
28 May 2013
Last updated
14 May 2015
Results posted
No
Data monitoring committee
No

Publications

  • Liu XE, Chen HY, Liao Z, Zhou Y, Wen H, Peng S, Liu Y, Li R, Li J, Zhuang H. Comparison of Immunogenicity Between Inactivated and Live Attenuated Hepatitis A Vaccines Among Young Adults: A 3-Year Follow-up Study. J Infect Dis. 2015 Oct 15;212(8):1232-6. doi: 10.1093/infdis/jiv213. Epub 2015 May 12.

    PubMed 25969561

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Inactivated HAV vaccine and Live attenuated HAV vaccine in people with Hepatitis A, 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 3 inclusion and 15 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 14 May 2015. 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?

concentration of antibody to hepatitis A virus (time frame: 37 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 NCT01865968, 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 14 May 2015.

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