Influenza Virus Vaccine Plus Vitamin A and D Supplements for Prevention of Respiratory Virus Infections in Children
A Double-Blind, Randomized, Placebo-Controlled Study of Antibody Induction by Vitamin Supplementation at the Time of Influenza Virus Vaccinations in Children
1 other identifier
interventional
87
1 country
1
Brief Summary
Children are particularly vulnerable to respiratory virus infections, especially influenza. Vitamin A \& D deficiencies are associated with vulnerability to infectious diseases of the respiratory tract. The central hypothesis of this protocol is that vitamin supplements will enhance antibody responses toward the flu vaccine in children. Children, 2-8 years old, will be randomized to receive influenza virus vaccine with a vitamin A+D supplement or influenza virus vaccine with placebo. Children will be tested for vitamin levels and immune responses before and after influenza virus vaccinations to determine if vitamin supplementation improves the influenza virus vaccine-induced immune response. PRIMARY OBJECTIVE:
- To assess the vaccine-induced and total antibody (including IgG and IgA) response after influenza virus vaccine administration and IgA/IgG plus IgA/IgM ratios at 28 and 56 days in sera SECONDARY OBJECTIVE:
- To assess the neutralizing response toward influenza virus vaccine in the sera.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_2
Started Jan 2016
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
January 6, 2016
CompletedFirst Posted
Study publicly available on registry
January 7, 2016
CompletedStudy Start
First participant enrolled
January 21, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 29, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
June 29, 2018
CompletedResults Posted
Study results publicly available
September 25, 2019
CompletedOctober 29, 2019
October 1, 2019
2.4 years
January 6, 2016
June 25, 2019
October 16, 2019
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Percentage of Participants With Positive Responses in Virus-specific Antibody in Sera
The percentage of 2X increases or conversion from undetectable to detectable response in virus-specific antibody toward any vaccine component after 2 immunizations in intervention and control groups will be reported.
Day 56 after vaccination
Isotype Ratios on Day 56
Isotype ratios will be summarized with descriptive statistics.
Day 56 after vaccination
Secondary Outcomes (4)
Percentage of Participants With Seroconversion at Day 56 After Vaccination, Overall
Day 56 after vaccination
Percentage of Participants With Seroconversion at Day 56 After Vaccination, by Vitamin A Levels at Screening
Day 56 after vaccination
HAI Titers at Day 56 After Vaccination, Overall
Day 56 after vaccination
HAI Titers at Day 56 After Vaccination, by Vitamin A Levels at Screening
Day 56 after vaccination
Study Arms (2)
Influenza Virus Vaccine Plus Vitamins A and D
ACTIVE COMPARATORParticipants receive influenza virus vaccine and Vitamins A and D supplement on Day 0 and Day 28.
Influenza Virus Vaccine Plus Placebo
PLACEBO COMPARATORParticipants receive influenza virus vaccine and matched placebo on Day 0 and Day 28.
Interventions
Children will have the first influenza virus vaccine dose (dose 1) administered on day 0 of the trial, and the second dose (dose 2) administered 28 days later.
The chewable gummy contains either Vitamin A (20,000 International Units) and Vitamin D3 (2,000 International Units), which should be fully chewed under supervision of study staff with documentation in the participant's research record and eMAR (electronic medical administration record). The chewable gummy should be administered prior to receiving influenza virus vaccination.
The chewable gummy matched placebo will be formulated with gelatin base and tangerine oil and match the Vitamin A and D in shape, taste, texture, and appearance. Gummies should be fully chewed under supervision of study staff with documentation in the participant's research record and eMAR (electronic medical administration record). The chewable gummy should be administered prior to receiving influenza virus vaccination.
Eligibility Criteria
You may qualify if:
- Resident of the Memphis area community.
- Parent or legal guardian willing and able to give informed consent and comply with study requirements.
You may not qualify if:
- Current use of investigational or immunosuppressive drugs (e.g., steroids) at the time of enrollment.
- Currently taking a daily (routine) vitamin A, D, or multivitamin. Note: participants who report occasional or sporadic vitamin use will be allowed to enroll.
- History of lung disease, asthma, immunodeficiency, sickle cell disease, or any other serious underlying condition or disease in the opinion of the principal investigator.
- Evidence of developmental delay or evolving neurological disorders at screening. Current use of antibiotics or antivirals at enrollment.
- History of having a severe allergy to eggs or to any inactive ingredient in the influenza virus vaccine
- History of a life-threatening reaction to influenza vaccinations
- Currently wheezing at the time of enrollment
- History of heart, kidney, or lung conditions
- History of diabetes
- Use of an anti-influenza medication (including amantadine, rimantadine, oseltamivir, and zanamivir) within 14 days prior to enrollment
- Acute febrile \[\>100.0°F (37.8°C) oral\] illness or acute respiratory illness (e.g., cough or sore throat) within 3 days prior to enrollment
- Previous receipt of current seasonal influenza vaccine
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
St. Jude Children's Research Hospital
Memphis, Tennessee, 38105, United States
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Nehali Patel, MD
- Organization
- St. Jude Children's Research Hospital
Study Officials
- PRINCIPAL INVESTIGATOR
Nehali Patel, MD
St. Jude Children's Research Hospital
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 6, 2016
First Posted
January 7, 2016
Study Start
January 21, 2016
Primary Completion
June 29, 2018
Study Completion
June 29, 2018
Last Updated
October 29, 2019
Results First Posted
September 25, 2019
Record last verified: 2019-10