Cholecalciferol and Flu Vaccine in Treating Healthy Participants

March 2, 2020 updated by: Roswell Park Cancer Institute

Immune Responses to Influenza Vaccine Among Healthy Employees Working at Roswell Park Cancer Institute and the Relationship to Vitamin D Status

This randomized clinical trial studies cholecalciferol and flu vaccine in treating healthy participants. Cholecalciferol may increase the immunologic response of flu vaccine in healthy participants. Flu vaccine may help the body build an immune response and help prevent flu

Study Overview

Detailed Description

PRIMARY OBJECTIVES:

I. To examine the effect of 25-hydroxy vitamin D3 levels on the immunologic response (antibody responses week 4 [4 weeks (+/- 7 days)] post-vaccination) to the injectable seasonal (2011-2012) trivalent influenza vaccine among Roswell Park Cancer Institute (RPCI) employees. (Observational component) II. To examine the effect of vitamin D3 (cholecalciferol) supplementation on the immunologic response (antibody response Week 16 [4 weeks (+/- 7 days)] post-vaccination) to the injectable seasonal (2012-2013) trivalent influenza vaccine among RPCI employees. (Intervention component)

SECONDARY OBJECTIVES:

I. To track occurrences of flu-like illness in the study population from November 1, 2011 through April 1, 2012, using a standardized epidemiologic questionnaire. (Observational component) II. To determine the relationship between 25-hydroxy vitamin D3 levels at time of vaccination and its immunologic responses Week 20 (8 weeks [+/- 7 days]) and Week 24 (12 weeks [+/- 7 days]) following administration of the injected seasonal (2012-2013) trivalent influenza vaccine. (Intervention component) III. To track occurrences of flu-like illnesses in the study population from November 2012 through April 2013, using a standardized epidemiologic questionnaire. (Intervention component) IV. To evaluate the association between single-nucleotide polymorphisms (SNPs) and polymorphisms in the deoxyribonucleic acid (DNA) sequence of vitamin-D3 metabolizing enzymes, measures of vitamin-D3 metabolism (24,25 hydroxy [OH] vitamin D3) and response to seasonal (2012-201) trivalent influenza vaccine. (Intervention component)

OUTLINE: Patients are randomized to 1 of 2 treatment arms.

ARM I: Patients receive low-dose cholecalciferol orally (PO) once daily (QD) for 12 weeks, followed by the seasonal (2012-2013) trivalent influenza vaccine intramuscularly (IM).

ARM II: Patients receive high-dose cholecalciferol PO QD for 12 weeks, followed by the seasonal (2012-2013) trivalent influenza vaccine IM.

After completion of study treatment, patients are followed up periodically.

Study Type

Interventional

Enrollment (Actual)

11

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • New York
      • Buffalo, New York, United States, 14263
        • Roswell Park Cancer Institute

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 64 years (ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Healthy individuals seen at the Employee Health Clinic who will be eligible to receive influenza vaccine
  • Willingness to comply with study expectations
  • subject or legal representative must understand the investigational nature of this study and sign an Independent Ethics Committee/Institutional Review Board approved written informed consent form prior to receiving any study related procedure
  • INTERVENTION COMPONENT ONLY:
  • Willing to suspend use of any other vitamin D supplementation during the 3 month treatment interval; if currently using > 2,000 IU/day of vitamin D supplementation, must suspend use 30 days prior to enrollment

Exclusion criteria:

-not RPCI employee

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: DOUBLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: Arm I (400 IU cholecalciferol and vaccine therapy)
Patients receive low-dose cholecalciferol PO QD for 12 weeks, followed by the seasonal (2012-2013) trivalent influenza vaccine IM.
Ancillary studies
Given PO
Other Names:
  • Vitamin D3
  • Calciol
Given IM
Other Names:
  • Flushield
  • Fluzone
  • Fluvirin
  • Influenza Vaccine
EXPERIMENTAL: Arm II (4,000 IU cholecalciferol and vaccine therapy)
Patients receive high-dose cholecalciferol PO QD for 12 weeks, followed by the seasonal (2012-2013) trivalent influenza vaccine IM.
Ancillary studies
Given PO
Other Names:
  • Vitamin D3
  • Calciol
Given IM
Other Names:
  • Flushield
  • Fluzone
  • Fluvirin
  • Influenza Vaccine

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Effect of 25-hydroxy Vitamin D3 Levels on Immunologic Response (Antibody Responses) to Injectable Seasonal (2011-2012) Trivalent Influenza Vaccine (Observational Component)
Time Frame: At 4 weeks post-vaccination
Descriptive statistics and chi-square tests will be used to assess for differences in the occurrence of self-reported flu-like illnesses in the study population.
At 4 weeks post-vaccination
Effect of Cholecalciferol Supplementation on Immunologic Response (Antibody Response) to Injectable Seasonal (2012-2013) Trivalent Influenza Vaccine (Intervention Component)
Time Frame: Up to 24 weeks post-vaccination
Descriptive statistics will be used to assess for differences in the occurrence of self-reported flu-like illnesses in the study population. Will be estimated with confidence intervals at each time point. Tested by Wald Chi-square test, and the odds ratio (with confidence intervals) will be reported.
Up to 24 weeks post-vaccination

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Occurrences of Flu-like Illness (Observational Component)
Time Frame: Up to April 1, 2012
occurrences of flu-like illness
Up to April 1, 2012
Relationship Between 25-hydroxy Vitamin D3 Levels at Time of Vaccination and Immunologic Responses Following Administration of the Injected Seasonal (2012-2013) Trivalent Influenza Vaccine (Intervention Component)
Time Frame: Up to week 24
Relationship between 25-hydroxy vitamin D3 levels at time of vaccination and immunologic responses following administration of the injected seasonal (2012-2013) trivalent influenza vaccine (Intervention component)
Up to week 24
Occurrences of Flu-like Illnesses (Intervention Component)
Time Frame: From initial treatment until the end of study (April 1, 2012); up to 24-weeks.
occurrences of flu like illness (intervention arm)
From initial treatment until the end of study (April 1, 2012); up to 24-weeks.
Association Between SNPs and Polymorphisms in the DNA Sequence of Vitamin-D3 Metabolizing Enzymes, Measures of Vitamin-D3 Metabolism (24,25 OH Vitamin D3) and Response to Seasonal (2012-201) Trivalent Influenza Vaccine (Intervention Component)
Time Frame: Up to 24 weeks
Association between SNPs and polymorphisms in the DNA sequence of vitamin-D3 metabolizing enzymes, measures of vitamin-D3 metabolism (24,25 OH vitamin D3) and response to seasonal (2012-201) trivalent influenza vaccine (Intervention component)
Up to 24 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

October 1, 2011

Primary Completion (ACTUAL)

July 1, 2013

Study Completion (ACTUAL)

June 1, 2015

Study Registration Dates

First Submitted

March 16, 2012

First Submitted That Met QC Criteria

March 22, 2012

First Posted (ESTIMATE)

March 23, 2012

Study Record Updates

Last Update Posted (ACTUAL)

March 10, 2020

Last Update Submitted That Met QC Criteria

March 2, 2020

Last Verified

March 1, 2020

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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