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Influenza, HumanNCT01906190

Persistence of Immune Response After Vaccination With Influenza Vaccine

A study testing seasonal influenza vaccine in people with Influenza, Human and Immunisation Reaction, run by Centers for Disease Control and Prevention, China 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

This clinical study will be performed in subjects aged 12-60 years old enrolled in NCT01310374 who received 2010 seasonal influenza vaccine to evaluate the persistence of the immune response of influenza vaccine up to 24 months after vaccination. Read more about this study

Who is it for?
Ages 12 to 60 yearsHealthy volunteers can take part
Conditions the study is for
Influenza, Human, Immunisation Reaction
What is being tested?
seasonal influenza vaccine
Type of treatment
Vaccines
Could I receive a placebo?
No, everyone receives an active treatment
How many people
207 participants
Where
1 siteChina
Study dates
Aug 2011to Jul 2013
Phase
Interventional
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 12 to 60 years
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult

Who may be able to join

  • aged 12-60 years old
  • male or non-pregnant female
  • volunteers received 2010 seasonal influenza vaccine
  • clinically healthy as determined by: medical history inquiring and physical examination
  • provide written informed consents before joining the trial

Who cannot join

  • without history of 2010 seasonal influenza vaccine administration,
  • allergic to any ingredient of vaccine,
  • autoimmune disease or immunodeficiency,
  • severe adverse reaction after vaccination, such as allergies, hives, breathing difficulties, angioedema or abdominal pain,
  • severe acute and chronic diseases
  • axillary temperature over 37.0℃ at the time of vaccination.

Trial locations and contacts

1 site in 1 country.

China1 site
  • Tuoketuo Centers for Disease Control & Prevention

    Tuoketuo County, Inner Mongolia, 102000

Other trials in China

About this study

Official title: Persistence Study of Immune Response After Vaccination With Influenza Vaccine in Healthy Population

This clinical study will be performed in subjects aged 12-60 years old enrolled in NCT01310374 who received 2010 seasonal influenza vaccine to evaluate the persistence of the immune response of influenza vaccine up to 24 months after vaccination.

Read the detailed description

Subjects were previously vaccinated at 12 to 60 years of age with 2010 seasonal influenza vaccine.The persistence phase starts 24 months after the primary vaccination and blood samples will be taken at 6, 12, 18 and 24 months after primary vaccination. Subjects whose antibody titer less than 1:40 at 6 months after primary vaccination will receive a booster dose of influenza vaccine.

Being tested
seasonal influenza vaccine
Keywords
influenza vaccine, immune response, persistence
Medical subject headings
Influenza, Human

What participants receive

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

  • seasonal influenza vaccineBiological

    subjects whose antibodies less than 1:40 6 months later after primary vaccination will receive a booster dose of seasonal influenza vaccine

Study groups in NCT01906190
Study groupRoleWhat they receive
vaccinated groupExperimentalVaccinated group means that subjects whose antibodies less than 1:40 6 months later after primary vaccination will receive a booster dose of seasonal influenza vaccine.
Receives: Biological: seasonal influenza vaccine

What is being measured

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

  1. change from serum antibodies against vaccine-related influenza virus at 6,12,18,24 months

    Persistence of antibodies in all subjects with respect to components of the investigational vaccine - month 6,12,18,24

    Measured: 6,12,18,24 months after the primary vaccination

Timeline

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

  1. First posted24 Jul 2013 (estimated)
  2. Study startAug 2011
  3. Primary completionMar 2013
  4. Study completionJul 2013

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 N/A
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
207 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01906190
Sponsor's protocol ID
BJCDCWJ201104
Status last verified
Jul 2013
First submitted
9 Jul 2013
Last updated
24 Jul 2013
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A study testing seasonal influenza vaccine in people with Influenza, Human and Immunisation Reaction, run by Centers for Disease Control and Prevention, China 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 5 inclusion and 6 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 24 Jul 2013. 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.

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?

change from serum antibodies against vaccine-related influenza virus at 6,12,18,24 months (time frame: 6,12,18,24 months after the primary vaccination). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 24 Jul 2013.

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