NCT01561989

Brief 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

Trial Health

57
Monitor

Trial Health Score

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

Enrollment
11

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Oct 2011

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
terminated

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

Study Start

First participant enrolled

October 1, 2011

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

March 16, 2012

Completed
7 days until next milestone

First Posted

Study publicly available on registry

March 23, 2012

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2013

Completed
1.9 years until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2015

Completed
4.8 years until next milestone

Results Posted

Study results publicly available

March 10, 2020

Completed
Last Updated

March 10, 2020

Status Verified

March 1, 2020

Enrollment Period

1.8 years

First QC Date

March 16, 2012

Results QC Date

April 11, 2017

Last Update Submit

March 2, 2020

Conditions

Outcome Measures

Primary Outcomes (2)

  • 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.

    At 4 weeks post-vaccination

  • 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.

    Up to 24 weeks post-vaccination

Secondary Outcomes (4)

  • Occurrences of Flu-like Illness (Observational Component)

    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)

    Up to week 24

  • Occurrences of Flu-like Illnesses (Intervention Component)

    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)

    Up to 24 weeks

Study Arms (2)

Arm I (400 IU cholecalciferol and vaccine therapy)

EXPERIMENTAL

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

Dietary Supplement: cholecalciferolOther: questionnaire administrationBiological: trivalent influenza vaccine

Arm II (4,000 IU cholecalciferol and vaccine therapy)

EXPERIMENTAL

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

Dietary Supplement: cholecalciferolOther: questionnaire administrationBiological: trivalent influenza vaccine

Interventions

cholecalciferolDIETARY_SUPPLEMENT

Given PO

Also known as: Calciol, Vitamin D3
Arm I (400 IU cholecalciferol and vaccine therapy)Arm II (4,000 IU cholecalciferol and vaccine therapy)

Ancillary studies

Arm I (400 IU cholecalciferol and vaccine therapy)Arm II (4,000 IU cholecalciferol and vaccine therapy)

Given IM

Also known as: Flushield, Fluvirin, Fluzone, Influenza Vaccine
Arm I (400 IU cholecalciferol and vaccine therapy)Arm II (4,000 IU cholecalciferol and vaccine therapy)

Eligibility Criteria

Age18 Years - 64 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • 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

You may not qualify if:

  • not RPCI employee

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Roswell Park Cancer Institute

Buffalo, New York, 14263, United States

Location

MeSH Terms

Interventions

CholecalciferolInfluenza Vaccines

Intervention Hierarchy (Ancestors)

CholestenesCholestanesSteroidsFused-Ring CompoundsPolycyclic CompoundsSterolsVitamin DSecosteroidsMembrane LipidsLipidsViral VaccinesVaccinesBiological ProductsComplex Mixtures

Limitations and Caveats

unable to meet accrual objective. study closed. No analyses or followup was completed.

Results Point of Contact

Title
Dr. Martin Mahoney
Organization
Roswell Park Cancer Institute

Study Officials

  • Martin Mahoney

    Roswell Park Cancer Institute

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 16, 2012

First Posted

March 23, 2012

Study Start

October 1, 2011

Primary Completion

July 1, 2013

Study Completion

June 1, 2015

Last Updated

March 10, 2020

Results First Posted

March 10, 2020

Record last verified: 2020-03

Locations