Immunogenicity and Safety of FluBlok Trivalent Recombinant Hemagglutinin Influenza Vaccine in Healthy Pediatrics
Summary
The purpose of this study was to evaluate dose-related safety, reactogenicity and immunogenicity of FluBlok trivalent recombinant baculovirus-expressed hemagglutinin influenza vaccine, administered to healthy children aged 6 to 59 months.
Description
Influenza has been identified as a major health problem in young children. Influenza related hospitalizations are very high in children less than 24 months of age and children age 24-59 months have a high rate of medical care utilization due to influenza. Recently, it has been noted that there are deaths attributable to influenza even in previously healthy children. Recent CDC recommendations reflect this growing awareness of the impact of influenza in children and state that virtually all children less than 18 years of age should receive annual influenza vaccination.
Currently available licensed trivalent influenza vaccines (TIVs) are prepared from viruses that are grown in embryonated hens' eggs. Alternative substrates for vaccine production are desirable in order to reduce the vulnerability of and to expand influenza vaccine supply. Recombinant DNA techniques allow for expression of the influenza hemagglutinin (rHA) by baculovirus vectors in insect cell cultures. Advantages of this technique include speed of production, absence of egg protein, and a highly purified product.
Study Design
Allocation: Randomized, Control: Active Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Double Blind (Subject, Investigator, Outcomes Assessor), Primary Purpose: Prevention
Conditions
Influenza
Intervention
Influenza Vaccination, Influenza Vaccination
Location
Kentucky pediatric /Adult Research
Bardstown
Kentucky
United States
40004
Status
Completed
Source
Protein Sciences Corporation
Results (where available)
Links
- Source: http://clinicaltrials.gov/show/NCT00336453
- Information obtained from ClinicalTrials.gov on July 15, 2010
Published on BioPortfolio: 2014-08-27T03:44:12-0400
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Medical and Biotech [MESH] Definitions
Influenza B Virus
Species of the genus INFLUENZAVIRUS B that cause HUMAN INFLUENZA and other diseases primarily in humans. Antigenic variation is less extensive than in type A viruses (INFLUENZA A VIRUS) and consequently there is no basis for distinct subtypes or variants. Epidemics are less likely than with INFLUENZA A VIRUS and there have been no pandemics. Previously only found in humans, Influenza B virus has been isolated from seals which may constitute the animal reservoir from which humans are exposed.
Hemagglutinin Glycoproteins, Influenza Virus
Membrane glycoproteins from influenza viruses which are involved in hemagglutination, virus attachment, and envelope fusion. Fourteen distinct subtypes of HA glycoproteins and nine of NA glycoproteins have been identified from INFLUENZA A VIRUS; no subtypes have been identified for Influenza B or Influenza C viruses.
Influenza In Birds
Infection of domestic and wild fowl and other BIRDS with INFLUENZA A VIRUS. Avian influenza usually does not sicken birds, but can be highly pathogenic and fatal in domestic POULTRY.
Influenzavirus C
A genus of the family ORTHOMYXOVIRIDAE comprising viruses similar to types A and B but less common, more stable, more homogeneous, and lacking the neuraminidase protein. They have not been associated with epidemics but may cause mild influenza. Influenza C virus is the type species.
Influenzavirus A
A genus in the family ORTHOMYXOVIRIDAE causing influenza and other diseases in humans and animals. It contains many strains as well as antigenic subtypes of the integral membrane proteins hemagglutinin (HEMAGGLUTININS) and NEURAMINIDASE. The type species is INFLUENZA A VIRUS.
