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Healthy, no Evidence of DiseaseNCT01561989

Cholecalciferol and Flu Vaccine in Treating Healthy Participants

A study testing cholecalciferol, questionnaire administration and trivalent influenza vaccine in people with Healthy, no Evidence of Disease, run by Roswell Park Cancer Institute at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

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 Read more about this study

Who is it for?
Ages 18 to 64 yearsHealthy volunteers can take part
Conditions the study is for
Healthy, no Evidence of Disease
What is being tested?
cholecalciferol, questionnaire administration and trivalent influenza vaccine
Type of treatment
Vaccines
Could I receive a placebo?
No, everyone receives an active treatment
How many people
11 participants
Where
1 siteUnited States
Study dates
Oct 2011to Jun 2015
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 64 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • 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

Who cannot join

  • -not RPCI employee

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Roswell Park Cancer Institute

    Buffalo, New York, 14263

Other trials in United States

About this study

Official title: 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

Read the detailed description

PRIMARY OBJECTIVES:

  1. 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:

  1. 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.

Being tested
cholecalciferol, questionnaire administration, trivalent influenza vaccine

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • cholecalciferolDietary supplement

    Also called Calciol, Vitamin D3

    Given PO

  • questionnaire administrationOther

    Ancillary studies

  • trivalent influenza vaccineBiological

    Also called Flushield, Fluvirin, Fluzone, Influenza Vaccine

    Given IM

Study groups in NCT01561989
Study groupRoleWhat they receive
Arm I (400 IU cholecalciferol and vaccine therapy)ExperimentalPatients receive low-dose cholecalciferol PO QD for 12 weeks, followed by the seasonal (2012-2013) trivalent influenza vaccine IM.
Receives: Dietary Supplement: cholecalciferol; Other: questionnaire administration; Biological: trivalent influenza vaccine
Arm II (4,000 IU cholecalciferol and vaccine therapy)ExperimentalPatients receive high-dose cholecalciferol PO QD for 12 weeks, followed by the seasonal (2012-2013) trivalent influenza vaccine IM.
Receives: Dietary Supplement: cholecalciferol; Other: questionnaire administration; Biological: trivalent influenza vaccine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Effect of 25-hydroxy Vitamin D3 Levels on Immunologic Response (Antibody Responses) to Injectable Seasonal (2011-2012) Trivalent Influenza Vaccine (Observational Component)

    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.

    Measured: At 4 weeks post-vaccination

  2. Effect of Cholecalciferol Supplementation on Immunologic Response (Antibody Response) to Injectable Seasonal (2012-2013) Trivalent Influenza Vaccine (Intervention Component)

    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.

    Measured: Up to 24 weeks post-vaccination

Secondary outcomes (4)
  1. Occurrences of Flu-like Illness (Observational Component)

    occurrences of flu-like illness

    Measured: Up to April 1, 2012

  2. 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)

    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)

    Measured: Up to week 24

  3. Occurrences of Flu-like Illnesses (Intervention Component)

    occurrences of flu like illness (intervention arm)

    Measured: From initial treatment until the end of study (April 1, 2012); up to 24-weeks.

  4. 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)

    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)

    Measured: Up to 24 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Mar 2012 (estimated)
  2. Study startOct 2011
  3. Primary completionJul 2013
  4. Study completionJun 2015

Why it stopped: low accrual

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
11 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01561989
Sponsor's protocol ID
I 203111
Status last verified
Mar 2020
First submitted
16 Mar 2012
Last updated
10 Mar 2020
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A study testing cholecalciferol, questionnaire administration and trivalent influenza vaccine in people with Healthy, no Evidence of Disease, run by Roswell Park Cancer Institute at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 10 Mar 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 10 Mar 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

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). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Mar 2020.

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