Vitamin D Supplementation And Varicella Zoster Virus Vaccine Responsiveness In Older Long-Term Care Residents
2 other identifiers
interventional
33
1 country
1
Brief Summary
This is an ancillary study to a randomized controlled trial of high dose vitamin D in older long-term care residents (NCT01102374). In this study, a subset of trial subjects will receive the zoster vaccine and the investigators will determine the immunological response to the vaccine in this older, frail population, as well as the association between vitamin D and immunological outcomes.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_1
Started Nov 2010
Typical duration for phase_1
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
November 1, 2010
CompletedFirst Submitted
Initial submission to the registry
December 15, 2010
CompletedFirst Posted
Study publicly available on registry
December 17, 2010
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 23, 2014
CompletedStudy Completion
Last participant's last visit for all outcomes
January 23, 2014
CompletedJune 25, 2021
June 1, 2021
3.2 years
December 15, 2010
June 23, 2021
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
VZV-specific cell mediated immunity, as measured by the interferon-γ ELISPOT assay
3 weeks post-vaccination
Secondary Outcomes (3)
VZV-gpELISA to measure the VZV-specific antibody concentration
3 weeks post-vaccination
VZV-specific effector and memory T cells
3 weeks post-vaccination
-specific cell mediated immunity, as measured by the responder cell frequency assay
3 weeks post-vaccination
Study Arms (1)
VZV vaccine
EXPERIMENTALVaricella Zoster Virus vaccine (Zostavax), single dose X 1 injection All subjects in this trial will receive the VZV vaccine. The Investigators will primarily compare immune responses in those that are receiving high dose vs. standard dose vitamin D supplementation and those that have high and low 25-hydroxyvitamin D levels.
Interventions
Single 0.65 mL subcutaneous injection of the live, attenuated VZV zoster vaccine (Zostavax; Merck, Whitehouse Station, NJ).
Eligibility Criteria
You may qualify if:
- Aged ≥ 60 years;
- Residing in a long-term care facility;
- Have not yet received VZV vaccine
You may not qualify if:
- terminal illness (expected survival \<6 months);
- anticipated discharge within 12 months;
- unable to take whole or crushed tablets;
- active cancer, except squamous/basal cell carcinoma;
- severe malnutrition (body mass index \<18 kg/m2);
- current immunosuppressive medications (including corticosteroids);
- renal failure (eGFR\<15 mL/min/1.73m2);
- currently taking \>800 IU/d vitamin D supplementation;
- history (or strong family history) of kidney stones;
- history of sarcoidosis or other granulomatous disorders associated with hypercalcemia;
- elevated baseline hypercalcemia (albumin-adjusted serum calcium \>10.5 mg/dL);
- serum 25 (OH)D level ≥40 ngl/ml at baseline;
- inability to provide informed consent and no available healthcare proxy;
- inability of participant or proxy to speak/understand English.
- previous receipt of the Zostavax (anticipate \<10% of trial;
- +1 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of Colorado, Denverlead
- National Institute on Aging (NIA)collaborator
- Merck Sharp & Dohme LLCcollaborator
Study Sites (1)
University of Colorado Denver
Aurora, Colorado, 80045, United States
Related Publications (1)
A randomized controlled trial of high dose vitamin D in older long-term care residents (NCT01102374)
BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Adit A Ginde, MD, MPH
University of Colorado, Denver
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NA
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
December 15, 2010
First Posted
December 17, 2010
Study Start
November 1, 2010
Primary Completion
January 23, 2014
Study Completion
January 23, 2014
Last Updated
June 25, 2021
Record last verified: 2021-06