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InfluenzaPhase 2NCT01195038

Immunogenicity and Safety Study of a Booster Vaccination With a Recombinant H5N1 Influenza HA Vaccine in Primed Adults

A Phase 2 study testing Recombinant Influenza HA Vaccine (H5N1) in people with Influenza, run by UMN Pharma Inc. at 2 sites in Japan.

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 study is designed to assess the immunogenicity and safety of one booster vaccination with 45 μg of a recombinant H5N1 influenza (A/Indonesia/05/2005) HA vaccine in healthy young adults, previously primed with a two-vaccination of 3 different doses of a recombinant H5N1 influenza (A/Vietnam/1203/2004) HA vaccine in… Read more about this study

Who is it for?
Ages 21 to 41 yearsHealthy volunteers can take part
Conditions the study is for
Influenza
What is being tested?
Recombinant Influenza HA Vaccine (H5N1)
Type of treatment
Vaccines
How many people
87 participants
Where
2 sitesJapan
Study dates
Oct 2010to 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 21 to 41 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Subjects who completed a priming study (JPIP501-01a, NCT00980447)
  • Male and female healthy adults
  • Written informed consent obtained from the subject before study entry

Who cannot join

  • History of H5N1 influenza or vaccination of other H5N1 influenza vaccines
  • Clinically diagnosed cardiovascular, hematological, psychological, neurological, hepatic, renal, pulmonary (including asthma), endocrinological or gastrointestinal disorder
  • Confirmed immune deficiency conditions, or diagnosed autoimmune diseases such as rheumatoid arthritis and systemic lupus erythematosus
  • Severe allergic reactions or anaphylaxis to foods or drugs (including vaccines)
  • Treatment with disallowed drugs including other study drugs
  • Pregnant or nursing (lactating) women
  • Other protocol-defined inclusion/exclusion criteria may apply

Trial locations and contacts

2 sites in 1 country.

Japan2 sites
  • UMN Investigational Site

    Osaka

  • UMN Investigational Site

    Tokyo

Other trials in Japan

About this study

Official title: A Multicenter, Open-Label Study to Assess the Immunogenicity and Safety of a Booster Vaccination With a Recombinant H5N1 Influenza HA Vaccine in Healthy Young Adults Primed With a Two-Vaccination of a Recombinant H5N1 Influenza HA Vaccine

The study is designed to assess the immunogenicity and safety of one booster vaccination with 45 μg of a recombinant H5N1 influenza (A/Indonesia/05/2005) HA vaccine in healthy young adults, previously primed with a two-vaccination of 3 different doses of a recombinant H5N1 influenza (A/Vietnam/1203/2004) HA vaccine in a priming study (JPIP501-01a, NCT00980447).

Conditions
Influenza
Being tested
Recombinant Influenza HA Vaccine (H5N1)
Keywords
Avian influenza, H5N1, pandemic, recombinant HA vaccine
Medical subject headings
Influenza, Human, Influenza in Birds

What participants receive

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

  • Recombinant Influenza HA Vaccine (H5N1)Biological

    Also called UMN-0501

    one booster dose of 45 μg rHA derived from A/Indonesia/05/2005 strain

What is being measured

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

  1. Percentage of subjects achieving seroconversion 21 days after a booster vaccination, as measured by hemagglutination inhibition (HI) assay against H5N1 influenza viruses (A/Indonesia/05/2005 & A/Vietnam/1203/2004)

    Measured: Day 21

Secondary outcomes (2)
  1. Percentage of subjects achieving seroprotection or significant increase in antibody titer on each blood sampling days after a booster vaccination, as measured by HI and microneutralization assays against the H5N1 influenza viruses

    Measured: Days 7, 21

  2. Incidence of adverse events including solicited local or systemic reactions until 21 days after a booster vaccination

    Measured: 21 days

Timeline

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

  1. First posted3 Sep 2010 (estimated)
  2. Study startOct 2010
  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
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
87 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01195038
Sponsor's protocol ID
JPIP501-01b
Status last verified
Feb 2011
First submitted
2 Sep 2010
Last updated
8 Feb 2011
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Recombinant Influenza HA Vaccine (H5N1) in people with Influenza, run by UMN Pharma Inc. at 2 sites in Japan.

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 7 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 8 Feb 2011. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Japan. 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 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?

Percentage of subjects achieving seroconversion 21 days after a booster vaccination, as measured by hemagglutination inhibition (HI) assay against H5N1 influenza viruses (A/Indonesia/05/2005 & A/Vietnam/1203/2004) (time frame: Day 21). 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 8 Feb 2011.

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