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AzTrials

Influenza A Virus InfectionPhase 1NCT01175122

Evaluation of the Safety and Immunogenicity of a Live Attenuated Virus Vaccine for the Prevention of H2N3 Influenza

A Phase 1 study testing H2N3 MO 2003/AA ca Vaccine in people with Influenza A Virus Infection, run by National Institute of Allergy and Infectious Diseases (NIAID) at 1 site 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

In recent years, influenza viruses that have traditionally infected animals have infected humans as well. The H2N3 influenza virus, which first appeared in pigs in the Midwest United States in 2006, may pose a potential health concern to humans. Read more about this study

Who is it for?
Ages 18 to 42 yearsHealthy volunteers can take part
Conditions the study is for
Influenza A Virus Infection
What is being tested?
H2N3 MO 2003/AA ca Vaccine
Type of treatment
Vaccines
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteUnited States
Study dates
Sep 2010to Apr 2011
Phase
Phase 1
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 42 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • In general good health, without significant medical illness, physical examination findings, or significant laboratory abnormalities as determined by the investigator
  • Agree to storage of blood specimens for future research
  • Available for the duration of the trial
  • Willing to participate in the study as evidenced by signing the informed consent document
  • Female participants must agree to use effective birth control methods for the duration of the study. More information on this criterion can be found in the protocol.

Who cannot join

  • Pregnant or breastfeeding
  • Evidence of clinically significant neurologic, cardiac, pulmonary, hepatic, rheumatologic, autoimmune, or renal disease by history, physical examination, and/or laboratory studies including urine testing. Clinically significant alanine aminotransferase (ALT) levels, as determined by the principal investigator (PI), will be exclusionary at baseline, prior to vaccination.
  • Behavioral or cognitive impairment or psychiatric disease that in the opinion of the investigator affects the ability of the participant to understand and cooperate with the study procedures
  • Previous enrollment in an H2 influenza vaccine trial or in any study of an avian influenza vaccine
  • Seropositive to the H2N3 influenza A virus (serum HAI titer greater than 1:8)
  • Positive urine drug toxicology test indicating narcotic use/dependency
Show all 25Show fewer
  • Have medical, occupational, or family problems as a result of alcohol or illicit drug use during the 12 months prior to study entry
  • Other condition that, in the opinion of the investigator, would jeopardize the safety or rights of a person participating in the trial or would render the person unable to comply with the study procedures
  • History of anaphylaxis
  • Allergy to oseltamivir as determined by participant report
  • Current diagnosis of asthma or reactive airway disease (within the 2 years prior to study entry)
  • History of Guillain-Barré Syndrome
  • Positive ELISA and confirmatory Western blot tests for human immunodeficiency virus-1 (HIV-1)
  • Positive ELISA and confirmatory test (e.g., recombinant immunoblot assay) for hepatitis C virus (HCV)
  • Positive hepatitis B virus surface antigen (HBsAg) by ELISA
  • Known immunodeficiency syndrome
  • Use of corticosteroids (excluding topical preparations) or immunosuppressive drugs within 30 days prior to vaccination
  • Receipt of a live vaccine within 4 weeks or a killed vaccine within 2 weeks prior to study vaccination
  • History of a surgical splenectomy
  • Receipt of blood or blood-derived products (including immunoglobulin) within 6 months prior to study vaccination
  • Current smoker unwilling to stop smoking for the duration of the study. More information on this criterion can be found in the protocol.
  • Travel to the Southern Hemisphere within 14 days prior to study vaccination
  • Travel on a cruise ship within 14 days prior to study vaccination
  • Receipt of another investigational vaccine or drug within 30 days prior to study vaccination
  • Allergy to eggs or egg products

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Rochester Medical Center

    Rochester, New York, 14642

Other trials in United States

About this study

Official title: Phase 1 Evaluation of the Safety and Immunogenicity of Live Influenza A Vaccine H2N3 (6-2) AA ca Recombinant (A/Swine/Missouri/4296424/2006 (H2N3) x A/Ann Arbor/6/60 ca), a Live Attenuated Virus Vaccine Candidate for Prevention of Influenza H2N3 Infection in the Event of a Pandemic

In recent years, influenza viruses that have traditionally infected animals have infected humans as well. The H2N3 influenza virus, which first appeared in pigs in the Midwest United States in 2006, may pose a potential health concern to humans. This study will evaluate the safety of and immune response to a vaccine designed to protect people from the H2N3 influenza virus.

Read the detailed description

Animal influenza viruses, such as the H1N1 and H5N1 viruses, typically infect animals like birds or pigs, but these viruses can also infect humans. The recent outbreak of the H1N1 influenza virus demonstrates that it is possible for these viruses to cause a pandemic outbreak in humans. Researchers are specifically interested in evaluating vaccines for H2 viruses, as these viruses caused a pandemic outbreak in humans in the late 1950s to 1960s. In addition, over half of the world's current population has no previous exposure to related viruses, which means a pandemic outbreak could pose a serious health risk as many people would have no immunity against the virus. In 2006, an outbreak of H2N3 infection occurred in pigs in the Midwest United States. While no humans contracted the virus during that outbreak, it remains a concern for researchers in the event that the virus ever spreads to humans. The purpose of this study is to evaluate the safety and immunogenicity of two doses of an experimental H2N3 vaccine, H2N3 MO 2006/AA ca in healthy adults. This is a live attenuated vaccine, which means that participants will be exposed to small amounts of the H2N3 vaccine virus and will need to remain isolated for at least 12 days when receiving the vaccine to prevent spreading the virus to others.

This study will enroll healthy adults. Participants will receive two doses of the vaccine, 4 weeks apart, and will stay in an isolation facility during both 12-day vaccination periods. Participants will be admitted to the isolation facility 2 days before they receive their first vaccination. They will receive one nasal spray administration of the vaccine and will be monitored for side effects. On various days while in the isolation facility, they will undergo a physical exam, blood and urine collection, and a nasal wash procedure. Participants will remain in the isolation facility for at least 9 days after receiving the vaccine and possibly longer, until the nasal wash tests negative for the vaccine virus for 2 consecutive days. Participants will be readmitted to the isolation facility 26 days after the first vaccination. They will receive a second vaccination and all study procedures will be repeated. Participants will attend study visits 56, 82, and 208 days after the first vaccination for follow-up health and safety monitoring, blood collection, and a nasal wash procedure.

Being tested
H2N3 MO 2003/AA ca Vaccine

What participants receive

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

  • H2N3 MO 2003/AA ca VaccineBiological

    0.2 mL of H2N3 MO 2003/AA ca vaccine delivered by an Accuspray nasal spray device on Day 0 and Day 28

Study groups in NCT01175122
Study groupRoleWhat they receive
H2N3 MO 2003/AA ca VaccineExperimentalParticipants will receive a nasal spray administration of the H2N3 MO 2003/AA ca vaccine on Day 0 and Day 28.
Receives: Biological: H2N3 MO 2003/AA ca Vaccine

What is being measured

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

  1. Frequency of vaccine-related reactogenicity events that occur during the acute monitoring (inpatient) phase of the study

    Measured: Measured through Day 37 or until participants are discharged from the isolation unit

  2. Area under the curve (AUC) of nasal virus shedding after each dose of vaccine as assessed by liquid titration of nasal secretions on Madin Darby canine kidney (MDCK) cells at 33°C

    Measured: Measured after each vaccination

  3. Development of serum antibody assessed by either hemagglutination inhibition (HAI) or microneutralization (MN) assays

    Measured: Measured after each vaccination

Secondary outcomes (3)
  1. Development of a significant increase in nasal secretion hemagglutinin (HA)-specific antibody assessed by enzyme-linked immunosorbent assay (ELISA)

    Measured: Measured until participants are discharged from the isolation unit

  2. Development of greater than 200 influenza-specific interferon-gamma-secreting cells per million lymphocytes as assessed by enzyme-linked immuno spot assay (ELISPOT) on Day 28 after immunization

    Measured: Measured 28 days after vaccination

  3. Detection of influenza-specific IgG or IgA secreting B cells on Day 7 following vaccination assessed by antibody secreting cells (ASC) assay

    Measured: Measured 7 days after vaccination

Timeline

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

  1. First posted4 Aug 2010 (estimated)
  2. Study startSep 2010
  3. Primary completionApr 2011
  4. Study completionApr 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 1
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01175122
Sponsor's protocol ID
URMC 10-004
Status last verified
Feb 2013
First submitted
3 Aug 2010
Last updated
11 Feb 2013
Results posted
No
Data monitoring committee
No

Publications

  • Ma W, Vincent AL, Gramer MR, Brockwell CB, Lager KM, Janke BH, Gauger PC, Patnayak DP, Webby RJ, Richt JA. Identification of H2N3 influenza A viruses from swine in the United States. Proc Natl Acad Sci U S A. 2007 Dec 26;104(52):20949-54. doi: 10.1073/pnas.0710286104. Epub 2007 Dec 18.

    PubMed 18093945
  • Chen GL, Lamirande EW, Yang CF, Jin H, Kemble G, Subbarao K. Evaluation of replication and cross-reactive antibody responses of H2 subtype influenza viruses in mice and ferrets. J Virol. 2010 Aug;84(15):7695-702. doi: 10.1128/JVI.00511-10. Epub 2010 May 26.

    PubMed 20504935

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing H2N3 MO 2003/AA ca Vaccine in people with Influenza A Virus Infection, run by National Institute of Allergy and Infectious Diseases (NIAID) at 1 site 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 5 inclusion and 25 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 11 Feb 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 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. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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?

Frequency of vaccine-related reactogenicity events that occur during the acute monitoring (inpatient) phase of the study (time frame: Measured through Day 37 or until participants are discharged from the isolation unit). The study lists 3 primary outcomes in all. 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 NCT01175122, which also lists 2 linked publications.

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 11 Feb 2013.

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