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InfluenzaPhase 2NCT00889889

Immunogenicity and Safety of a Cell-derived Influenza Vaccine in Adults Aged >= 18 and <= 64, Plus Revaccination

A Phase 2 study testing Cell-Derived Trivalent Subunit Influenza Vaccine in people with Influenza, run by Abbott Biologicals at 15 sites in United States.

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

Immunogenicity and safety of a cell-derived influenza vaccine in adults aged >= 18 and <= 64 years, plus revaccination Read more about this study

Who is it for?
Ages 18 to 64 yearsHealthy volunteers can take part
Conditions the study is for
Influenza
What is being tested?
Cell-Derived Trivalent Subunit Influenza Vaccine
Type of treatment
Vaccines
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
1,270 participants
Where
15 sitesUnited States
Study dates
May 2009to Jan 2011
Phase
Phase 2
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 64 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Willing and able to give informed consent and able to adhere to all protocol required study procedures.
  • Men and women aged >= 18 and <= 64 years.
  • Being in good health as judged by medical history, physical examination and clinical judgment of the investigator.

Who cannot join

  • Known to be allergic to constituents of the vaccine.
  • A serious adverse reaction after a previous (influenza) vaccination. Presence of any significant condition that may prohibit inclusion as determined by the investigator.
  • Having received vaccination against influenza or lab confirmed influenza within the previous six months before study vaccination.

Trial locations and contacts

15 sites in 1 country.

15 sites in 1 country

United States15 sites
  • Site Reference ID/Investigator# 45683

    Austin, Texas, 78705

  • Site Reference ID/Investigator# 45695

    Fort Worth, Texas, 76135

  • Site Reference ID/Investigator# 45690

    Jacksonville, Florida, 32216

  • Site Reference ID/Investigator# 45684

    Kansas City, Missouri, 64114

  • Site Reference ID/Investigator# 45686

    Las Vegas, Nevada, 89104

  • Site Reference ID/Investigator# 45691

    Lenexa, Kansas, 66219

  • Site Reference ID/Investigator# 45682

    Lexington, Kentucky, 40509

  • Site Reference ID/Investigator# 45696

    Nashville, Tennessee, 37203

  • Site Reference ID/Investigator# 45685

    Omaha, Nebraska, 68134

  • Site Reference ID/Investigator# 45689

    Overland Park, Kansas, 66212

  • Site Reference ID/Investigator# 45687

    Pembroke Pines, Florida, 33024

  • Site Reference ID/Investigator# 45688

    Raleigh, North Carolina, 27612

  • Site Reference ID/Investigator# 45692

    Salt Lake City, Utah, 84124

  • Site Reference ID/Investigator# 45697

    South Miami, Florida, 33143

  • Site Reference ID/Investigator# 45694

    Wichita, Kansas, 67207

Other trials in United States

About this study

Official title: Randomized, Double-Blind, Placebo-Controlled Study to Assess the Immunogenicity and Safety of a Cell-Derived Trivalent Subunit Influenza Vaccine in Subjects Aged >= 18 Years and <= 64 Years During Two Consecutive Years.

Immunogenicity and safety of a cell-derived influenza vaccine in adults aged >= 18 and <= 64 years, plus revaccination

Conditions
Influenza
Being tested
Cell-Derived Trivalent Subunit Influenza Vaccine, Placebo
Keywords
Influenza, Phase II, Placebo-controlled
Medical subject headings
Influenza, Human

What participants receive

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

  • Cell-Derived Trivalent Subunit Influenza VaccineBiological

    surface antigen, inactivated, prepared in cell cultures

  • PlaceboBiological

    Placebo

Study groups in NCT00889889
Study groupRoleWhat they receive
1ExperimentalNot described
Receives: Biological: Cell-Derived Trivalent Subunit Influenza Vaccine
2Placebo comparatorNot described
Receives: Biological: Placebo

What is being measured

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

  1. To assess the immunogenicity of the cell-derived subunit vaccine three weeks after vaccination, by applying the FDA requirement for influenza vaccines.

    Measured: 3 weeks

  2. To assess after the first vaccination the safety and tolerability of the cell-derived subunit vaccine compared to placebo.

    Measured: 6 months

Secondary outcomes (3)
  1. To assess the long-term immunogenicity (6 months) of the cell-derived subunit vaccine.

    Measured: 6 months

  2. To assess the immunogenicity of the cell-derived subunit vaccine three weeks after revaccination.

    Measured: 3 weeks

  3. To assess after the second vaccination the safety and tolerability of the cell-derived subunit vaccine.

    Measured: 6 months

Timeline

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

  1. First posted29 Apr 2009 (estimated)
  2. Study startMay 2009
  3. Primary completionJan 2011
  4. Study completionJan 2011

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 2
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
1,270 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00889889
Sponsor's protocol ID
S203.2.004
Status last verified
Sep 2013
First submitted
28 Apr 2009
Last updated
25 Oct 2013
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Cell-Derived Trivalent Subunit Influenza Vaccine in people with Influenza, run by Abbott Biologicals at 15 sites in United States.

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 3 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 25 Oct 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 15 sites in United States. 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. Some participants in this study may receive a placebo. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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?

To assess the immunogenicity of the cell-derived subunit vaccine three weeks after vaccination, by applying the FDA requirement for influenza vaccines. (time frame: 3 weeks). The study lists 2 primary outcomes in all. 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 25 Oct 2013.

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