- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01561989
Cholecalciferol and Flu Vaccine in Treating Healthy Participants
Immune Responses to Influenza Vaccine Among Healthy Employees Working at Roswell Park Cancer Institute and the Relationship to Vitamin D Status
Study Overview
Status
Conditions
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
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
New York
-
Buffalo, New York, United States, 14263
- Roswell Park Cancer Institute
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
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
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:
Given IM
Other Names:
|
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:
Given IM
Other Names:
|
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
Sponsor
Collaborators
Study record dates
Study Major Dates
Study Start
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ESTIMATE)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- I 203111
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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