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Safety, Reactogenicity and Immunogenicity of an H5N1 VLP

A Phase I/IIa Trial to Evaluate the Safety, Reactogenicity, and Immunogenicity of an H5N1 Virus-Like Particle (VLP) Influenza Vaccine (Recombinant)

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00519389
Enrollment
230
Registered
2007-08-22
Start date
2007-07-31
Completion date
2008-11-30
Last updated
2013-06-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pandemic Influenza

Brief summary

This is a Phase I/IIa randomized, double-blind, placebo-controlled study to evaluate the safety, reactogenicity, and immunogenicity of 3 potencies (dosages) of H5N1 VLP vaccine or placebo in healthy adults 18 to 40 years of age.

Interventions

BIOLOGICALH5N1 VLP Vaccine

Two doses - Day 0 & Day 28

BIOLOGICALPlacebo

Two doses - Day 0 & Day 28

Sponsors

Novavax
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 40 Years
Healthy volunteers
Yes

Inclusion criteria

1. Male or female 18 to 40 years of age at the time of the vaccination. 2. Subjects who the investigator believes can and will comply with the requirements of the protocol (e.g., return for follow-up visits and completion of the data collection tool). 3. Available by telephone. 4. Free of obvious health problems as established by medical history and clinical examination before entering the study. 5. If subject is of childbearing potential, she must be abstinent or have used adequate contraceptive precautions (e.g., intrauterine contraceptive device; oral contraceptives or other equivalent hormonal contraception) for 30 days prior to vaccination. She must also have a negative pregnancy test at study entry and must agree to continue such precautions for two months after completion of vaccination. 6. Must provide written, informed consent.

Exclusion criteria

1. Use of any investigational or non-registered product (drug or vaccine) other than the study vaccine(s) within 30 days preceding the administration of the study vaccine, or planned use during the study period. 2. Has received any other licensed vaccines within 4 weeks prior to enrollment in this study. 3. Has received any influenza vaccine within the prior 12 month period. 4. Has received any investigational vaccine designed for protection against avian influenza. 5. Chronic administration (defined as more than 14 days) of immunosuppressants or other immune-modifying drugs within six months prior to the administration of the study vaccine. The use of inhaled and nasal steroids will be permitted. 6. Any medically diagnosed or suspected immunodeficient condition based on medical history and physical examination. 7. Administration of immunoglobulins and/or any blood products within the three months preceding the administration of the study vaccine or during the study. 8. Acute disease at the time of enrollment. Acute disease is defined as the presence of a moderate or severe illness with or without fever ≥ 100.5º F. 9. Acute clinically significant pulmonary, cardiovascular, hepatic or renal functional abnormality, as determined by physical examination or laboratory screening tests. 10. Major congenital defects or serious chronic illness. 11. History of any neurological disorders or seizures, with the exception of febrile seizures during childhood.

Design outcomes

Primary

MeasureTime frame
Safety and reactogenicity of H5N1 VLP Vaccine6 months

Secondary

MeasureTime frame
Immunogenicity of H5N1 VLP Influenza vaccine6 months

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026