Study Stopped
low accrual
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
1 other identifier
interventional
11
1 country
1
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Oct 2011
Longer than P75 for not_applicable
1 active site
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
CompletedFirst Submitted
Initial submission to the registry
March 16, 2012
CompletedFirst Posted
Study publicly available on registry
March 23, 2012
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2013
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2015
CompletedResults Posted
Study results publicly available
March 10, 2020
CompletedMarch 10, 2020
March 1, 2020
1.8 years
March 16, 2012
April 11, 2017
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)
EXPERIMENTALPatients receive low-dose cholecalciferol PO QD for 12 weeks, followed by the seasonal (2012-2013) trivalent influenza vaccine IM.
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.
Interventions
Given PO
Ancillary studies
Given IM
Eligibility Criteria
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
- Roswell Park Cancer Institutelead
- National Cancer Institute (NCI)collaborator
Study Sites (1)
Roswell Park Cancer Institute
Buffalo, New York, 14263, United States
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
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
- PRINCIPAL INVESTIGATOR
Martin Mahoney
Roswell Park Cancer Institute
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