Safety, and Immunogenicity of Two Influenza Vaccines in Healthy Subjects 3 to 64 Years Old
A Phase III, Observer-Blind, Randomized, Controlled, Multicenter Study to Evaluate Safety, Tolerability, and Immunogenicity of Two Trivalent Subunit Inactivated Influenza Vaccines in Healthy Children Aged 3 to 8 Years, in Healthy Children/Adolescents Aged 9 to 17 Years,and in Healthy Adults Aged 18 to 64 Years
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Phase 3
Contacts and Locations
Study Locations
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-
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Buenos Aires, Argentina
- Site 2: C1425AWK
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Cordoba, Argentina
- Site 1: X5000BJH
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-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Healthy subjects 3 to 64 years of age
Exclusion Criteria:
- Receipt of other investigational products within 3 months or other vacine within 1 month;
- Allergy to eggs, egg products, or any other vaccine component;
- Laboratory confirmed influenza disease within 6 months;
- Have previously received an influenza vaccination (3 to 8 years only);
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: Influenza virus vaccine
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Two intramuscular injections of the investigational influenza virus vaccine administered 4 weeks part to group 3 to 8 years of age while one injection was administered to groups 9 to 17 years of age and 18 to 64 years of age.
|
|
Active Comparator: Comparator influenza vaccine
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Two intramuscular injections were administered 4 weeks apart to group 3 to 8 years of age while one injection was administered to groups 9 to 17 years of age and 18 to 64 years of age.
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What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Percentage of Subjects With Seroprotection, in Healthy Adults 18 to 64 Years of Age
Time Frame: 21 days after vaccination
|
To evaluate immunogenicity, measured by seroprotection (percentage of subjects achieving a hemagglutination inhibition [HI] titer ≥40) after one injection of the investigational influenza virus vaccine, administered to healthy adults 18 to 64 years of age.
The CBER Guidance states that the lower bound of the two-sided 95% CI for the percentage of subjects achieving seroprotection meet or exceed 70%.
|
21 days after vaccination
|
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Percentage of Subjects Achieving a Seroconversion Rate, in Adults 18 to 64 Years of Age
Time Frame: 21 days after vaccination
|
Seroconversion rate is defined as percentage of subjects achieving seroconversion (defined as negative pre-vaccination serum [HI<10]/ post-vaccination HI titer ≥40) or significant increase defined as at least a 4-fold increase).
According to the CBER Guidance, the lower bound of the two-sided 95% CI for the percentage of subjects achieving seroconverion/significant increase meet or exceed 40%.
|
21 days after vaccination
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Number of Subjects Reporting Solicited Local and Systemic Symptoms in Adults 18 to 64 Years of Age
Time Frame: 7 days after vaccination
|
Solicited local and systemic reactions were assessed after vaccination in adults 18 to 64 years of age.
|
7 days after vaccination
|
|
Percentage of Subjects With Seroprotection, in Healthy Children/Adolescents 9 to 17 Years of Age
Time Frame: 21 days after vaccination
|
To descriptively evaluate immunogenicity, measured by seroprotection rate (percentage of subjects achieving a hemagglutination inhibition [HI] titer ≥40) after one injection of investigational influenza virus vaccine, administered to healthy children/adolescents 9 to 17 years of age.
|
21 days after vaccination
|
|
Percentage of Subjects Achieving Seroconversion Rate, in Healthy Children/Adolescents 9 to 17 Years of Age
Time Frame: 21 days after vaccination
|
Seroconversion rate is defined as percentage of subjects achieving seroconversion (defined as negative pre-vaccination serum [HI<10]/ post-vaccination HI titer ≥40) or significant increase (defined as at least a 4-fold increase) after one injection of the investigational influenza virus vaccine, administered to healthy children/adolescents 9 to 17 years of age.
|
21 days after vaccination
|
|
Geometric Mean Titers (GMTs), in Healthy Children/Adolescents 9 to 17 Years of Age
Time Frame: 21 days after vaccination
|
To evaluate immunogenicity measured by GMTs after one injection of investigational influenza virus vaccine, administered to healthy children/adolescents 9 to 17 years of age.
|
21 days after vaccination
|
|
Number of Subjects Reporting Solicited Local and Systemic Symptoms in Children/Adolescents 9 to 17 Years of Age
Time Frame: 7 days after vaccination
|
Solicited local and systemic reactions were assessed after vaccination in children/adolescents 9 to 17 years of age.
|
7 days after vaccination
|
|
Percentage of Subjects With Seroprotection, in Healthy Children 3 to 8 Years of Age
Time Frame: 50 days after last vaccination
|
To descriptively evaluate immunogenicity, measured by seroprotection rate (percentage of subjects achieving a hemagglutination inhibition [HI] titer ≥40) after two injections of the investigational influenza virus vaccine, in healthy children 3 to 8 years of age.
|
50 days after last vaccination
|
|
Percentage of Subjects Achieving Seroconversion Rate, in Healthy Children 3 to 8 Years of Age
Time Frame: 50 days after last vaccination
|
Seroconversion rate is defined as percentage of subjects achieving seroconversion (defined as negative pre-vaccination serum [HI<10]/ post-vaccination HI titer ≥40) or significant increase (defined as at least a 4-fold increase) after two injections of the investigational influenza virus vaccine, in healthy children 3 to 8 years of age.
|
50 days after last vaccination
|
|
Geometric Mean Titers (GMTs), in Healthy Children 3 to 8 Years of Age
Time Frame: 50 days after last vaccination
|
To evaluate immunogenicity measured by GMTs after two injections of the investigational influenza virus vaccine, in healthy children 3 to 8 years of age.
|
50 days after last vaccination
|
|
Number or Subjects Reporting Solicited Local and Systemic Symptoms, in Healthy Children 3 to 8 Years of Age.
Time Frame: 7 days after each vaccination
|
Solicited local and systemic reactions were assessed after each vaccination, in healthy children 3 to 8 years of age.
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7 days after each vaccination
|
|
Geometric Mean Titers (GMTs), in Healthy Adults 18 to 64 Years of Age
Time Frame: 21 days after vaccination
|
Immunogenicity measured by GMTs after one injection of the investigational influenza virus vaccine, in healthy adults 18 to 64 years of age.
|
21 days after vaccination
|
Collaborators and Investigators
Sponsor
Sponsor
Collaborators
Collaborators
Publications and helpful links
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Estimate)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- V71P5
- IND: 13299
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