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CompletedNCT00488046Updated Nov 20, 2007

Single Group Study of the Safety of and Immune Response to a Bird Flu Virus Vaccine (H5N1) in Healthy Adults

A Phase 1 interventional study of H5N1 (6-2) AA ca Recombinant (A/Hong Kong/213/2003 x A/AnnArbor/6/60 ca) in Influenza and Virus Diseases, sponsored by National Institute of Allergy and Infectious Diseases (NIAID). Completed at 1 site in United States. Open to participants aged 18 Years to 49 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2007-11-20.

Sponsored by National Institute of Allergy and Infectious Diseases (NIAID) · Phase 1, Interventional, and Prevention

Phase
Phase 1
Study type
Interventional
Enrollment
16
Allocation
Non-randomized
Ages
18 Years to 49 Years
Sex
All
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Study summary

Over the past decade, avian influenza (AI) has become a major health concern. The development of a safe and effective vaccine against H5N1 infection is important. The purpose of this study is to determine the safety of a new AI vaccine in healthy adults.

Read the detailed description

According to the World Health Organization, the current pandemic risk associated with avian influenza H5N1 infection is serious, as an increasing number of humans are infected. Currently, H5N1 influenza transmission occurs in humans when they are exposed through direct contact to infected poultry or surfaces and objects contaminated by infected poultry feces. A pandemic occurs when a new influenza subtype emerges that infects humans, causes serious illness, and spreads easily among humans. The development of a safe and effective vaccine is necessary, should a pandemic occur. The purpose of this study is to evaluate the safety and immunogenicity of a live, attenuated A1 virus vaccine, H5N1 (6-2) AA ca Recombinant (A/Hong Kong/213/2003 x A/AnnArbor/6/60 ca).

This study will last approximately 16 weeks. Participation in this study includes a hospital stay in an isolation unit at the Johns Hopkins Bayview Medical Center. All participants will receive two doses of vaccine in nasal spray form, at study entry and sometime between 4 and 8 weeks after initial vaccination. Participants will be admitted to the isolation unit 2 days prior to each vaccination. A targeted physical exam will occur daily following each vaccination until discharge. Participants will not be discharged until nasal washes are negative. Vital signs measurement will be done at least twice daily for the duration of the inpatient stay. A follow-up outpatient visit will occur approximately 4 weeks following each vaccination. Blood and urine collection will occur at selected timepoints throughout the study.

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Conditions studied

  • Influenza
  • Virus Diseases

Keywords

  • Bird Flu
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In context

Virus Diseases

914 studies on the registry are indexed under Virus Diseases; 110 are open to participants now.

This study's enrollment of 16 is below the median of 102 across 604 interventional studies indexed under Virus Diseases.

Browse Virus Diseases studies →

Lead sponsor

National Institute of Allergy and Infectious Diseases (NIAID) is the lead sponsor of 2,401 studies on the registry; 179 are open to participants now.

Of its 396 completed or terminated interventional studies of FDA-regulated products, 294 (74%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 49 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Good general health
  • Available for the duration of the study
  • Willing to use acceptable forms of contraception for the duration of the study

Exclusion criteria

Exclusion Criteria:

  • Clinically significant neurologic, heart, lung, liver, rheumatologic, autoimmune, or kidney disease
  • Behavioral or cognitive impairment or psychiatric disease that, in the opinion of the investigator, may affect study participation
  • Medical, work, or family problems as a result of alcohol or illicit drug use within 12 months prior to study entry
  • Previously enrolled in an H5N1 influenza vaccine trial or in any study of an avian influenza vaccine
  • Seropositive to the H5N1 influenza A virus (serum hemagglutination inhibitor [HI] titer greater than 1:8)
  • Illegal drug use or dependency determined by urine test
  • History of severe allergic reaction
  • Allergy to oseltamivir
  • Asthma or reactive airways disease within 2 years prior to study entry
  • History of Guillain-Barre syndrome
  • HIV infected
  • Hepatitis C virus infected
  • Positive for hepatitis B surface antigen (HBsAg)
  • Known immunodeficiency syndrome
  • Use of corticosteroid or immunosuppressive drugs within 30 days prior to vaccination. Participants who have used topical corticosteroids are not excluded.
  • Live vaccines within 4 weeks prior to study vaccination
  • Killed vaccines within 2 weeks prior to study vaccination
  • Absence of spleen
  • Blood products within 6 months prior to study vaccination
  • Current smoker unwilling to stop smoking for the duration of the study
  • Have traveled to the Southern Hemisphere or Asia within 14 days prior to study vaccination
  • Have traveled on a cruise ship within 14 days prior to study vaccination
  • Work in the poultry industry
  • Other investigational vaccine or drug within 30 days prior to study vaccination
  • Allergy to eggs or egg products
  • Purified protein derivative (PPD) positive (positive tuberculosis [TB] test)
  • Have family member with immunodeficiency-related condition
  • Other condition that, in the opinion of the investigator, may interfere with the study
  • Pregnancy or breastfeeding
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Study design

Phase
Phase 1
Primary purpose
Prevention
Allocation
Non-randomized
Intervention model
Single group
Masking
None (open label)
Enrollment
16 participants (actual)

Study arms

  • Experimental
    1

    Two, 0.5 ml doses of vaccine in nasal spray form administered at study entry and sometime between 4 and 8 weeks after initial vaccination

    Biological: H5N1 (6-2) AA ca Recombinant (A/Hong Kong/213/2003 x A/AnnArbor/6/60 ca)

Interventions

  • BiologicalH5N1 (6-2) AA ca Recombinant (A/Hong Kong/213/2003 x A/AnnArbor/6/60 ca)

    Intranasal vaccine

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What researchers measure

Primary outcomes

  1. Safety, defined as the frequency of vaccine-related reactogenicity events

    Time frame: During the acute monitoring (in-patient) phase of the study

Secondary outcomes

  1. Immunogenicity, determined by anti-H5N1 antibody titer

    Time frame: At Days 0, 7, 9, and 28 with respect to vaccination

07

Study locations

1 site
  • Center for Immunization Research (CIR), Johns Hopkins Bloomberg School of Public Health
    Baltimore, Maryland 21205, United States
08

References and documents

Publications

  • Cinatl J Jr, Michaelis M, Doerr HW. The threat of avian influenza A (H5N1). Part IV: Development of vaccines. Med Microbiol Immunol. 2007 Dec;196(4):213-25. doi: 10.1007/s00430-007-0052-3. Epub 2007 Jun 1. PubMed 17541633 ↗
  • Cox MM. Vaccines in development against avian influenza. Minerva Med. 2007 Apr;98(2):145-53. PubMed 17519856 ↗
  • Peiris JS, Yu WC, Leung CW, Cheung CY, Ng WF, Nicholls JM, Ng TK, Chan KH, Lai ST, Lim WL, Yuen KY, Guan Y. Re-emergence of fatal human influenza A subtype H5N1 disease. Lancet. 2004 Feb 21;363(9409):617-9. doi: 10.1016/S0140-6736(04)15595-5. PubMed 14987888 ↗
  • Rajagopal S, Treanor J. Pandemic (avian) influenza. Semin Respir Crit Care Med. 2007 Apr;28(2):159-70. doi: 10.1055/s-2007-976488. PubMed 17458770 ↗
  • Ungchusak K, Auewarakul P, Dowell SF, Kitphati R, Auwanit W, Puthavathana P, Uiprasertkul M, Boonnak K, Pittayawonganon C, Cox NJ, Zaki SR, Thawatsupha P, Chittaganpitch M, Khontong R, Simmerman JM, Chunsutthiwat S. Probable person-to-person transmission of avian influenza A (H5N1). N Engl J Med. 2005 Jan 27;352(4):333-40. doi: 10.1056/NEJMoa044021. Epub 2005 Jan 24. PubMed 15668219 ↗
  • Karron RA, Talaat K, Luke C, Callahan K, Thumar B, Dilorenzo S, McAuliffe J, Schappell E, Suguitan A, Mills K, Chen G, Lamirande E, Coelingh K, Jin H, Murphy BR, Kemble G, Subbarao K. Evaluation of two live attenuated cold-adapted H5N1 influenza virus vaccines in healthy adults. Vaccine. 2009 Aug 6;27(36):4953-60. doi: 10.1016/j.vaccine.2009.05.099. Epub 2009 Jun 21. PubMed 19540952 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 20, 2007, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00488046
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
Collaborators
Johns Hopkins Bloomberg School of Public Health
First posted
Jun 19, 2007
Start date
Jun 2007
Completion
Sep 2007
Last update
Nov 20, 2007

Study contacts

Ruth A. Karron, MD
principal investigator · Johns Hopkins Bloomberg School of Public Health
View the source record on ClinicalTrials.gov ↗

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