NCT02649192

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

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
87

participants targeted

Target at P50-P75 for phase_2

Timeline
Completed

Started Jan 2016

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 6, 2016

Completed
1 day until next milestone

First Posted

Study publicly available on registry

January 7, 2016

Completed
14 days until next milestone

Study Start

First participant enrolled

January 21, 2016

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 29, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 29, 2018

Completed
1.2 years until next milestone

Results Posted

Study results publicly available

September 25, 2019

Completed
Last Updated

October 29, 2019

Status Verified

October 1, 2019

Enrollment Period

2.4 years

First QC Date

January 6, 2016

Results QC Date

June 25, 2019

Last Update Submit

October 16, 2019

Conditions

Keywords

ChildrenVitamin SupplementsInfluenza virus vaccine

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 COMPARATOR

Participants receive influenza virus vaccine and Vitamins A and D supplement on Day 0 and Day 28.

Biological: Influenza virus vaccineDietary Supplement: Vitamins A and D

Influenza Virus Vaccine Plus Placebo

PLACEBO COMPARATOR

Participants receive influenza virus vaccine and matched placebo on Day 0 and Day 28.

Biological: Influenza virus vaccineOther: Placebo

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.

Also known as: Fluzone®
Influenza Virus Vaccine Plus PlaceboInfluenza Virus Vaccine Plus Vitamins A and D
Vitamins A and DDIETARY_SUPPLEMENT

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.

Also known as: Nutritional Supplement
Influenza Virus Vaccine Plus Vitamins A and D
PlaceboOTHER

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.

Also known as: Look-alike Medication, Matched Placebo
Influenza Virus Vaccine Plus Placebo

Eligibility Criteria

Age2 Years - 8 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

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

Location

Related Links

MeSH Terms

Conditions

Influenza, Human

Interventions

Influenza VaccinesFumigant 93Dietary SupplementsMedication Errors

Condition Hierarchy (Ancestors)

Respiratory Tract InfectionsInfectionsOrthomyxoviridae InfectionsRNA Virus InfectionsVirus DiseasesRespiratory Tract Diseases

Intervention Hierarchy (Ancestors)

Viral VaccinesVaccinesBiological ProductsComplex MixturesFoodDiet, Food, and NutritionPhysiological PhenomenaFood and BeveragesDrug TherapyTherapeuticsMedical ErrorsHealth ServicesHealth Care Facilities Workforce and Services

Results Point of Contact

Title
Nehali Patel, MD
Organization
St. Jude Children's Research Hospital

Study Officials

  • Nehali Patel, MD

    St. Jude Children's Research Hospital

    PRINCIPAL INVESTIGATOR

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

Locations