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NCT03320109 · ClinicalTrials.gov registry record
Serum, Dietary and Supplemental Vitamin D's Association With Cognitive Decline
A clinical trial, sponsored by National Institute on Aging (NIA).
- Completed
- Registry status
- 3,720
- Enrollment target
NCT03320109: Completed study, sponsored by National Institute on Aging (NIA).
NCT03320109 is a clinical trial that has completed, run by National Institute on Aging (NIA). The registered enrollment target is 3,720 participants. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT03320109 has completed, sponsored by National Institute on Aging (NIA).
- COMPLETED
- Registry status
- 3,720 participants
- Enrollment target
Study Summary
Serum 25(OH)D, dietary and supplemental vitamin D were shown to influence cognitive outcomes in large epidemiological studies. Sex/age-specific and race-specific associations of vitamin D status and intake were examined with longitudinal change in various cognitive domains in a large sample of ethnically and socio-economically diverse US urban adults. Two prospective waves of data from Healthy Aging in Neighborhoods of Diversity across the Life Span (HANDLS) study were used, specifically visit 1: 2004-2009 and visit 2: 2009-2013, mean follow-up time±SD: 4.64±0.93y. Cognitive performance was assessed using 11 test scores covering domains of global cognition, attention, learning/memory, executive function, visuo-spatial/visuo-construction ability, psychomotor speed and language/verbal. Serum 25(OH)D, vitamin D intake and use of supplements containing vitamin D were the key exposures. Multiple mixed-effects linear regression models were conducted, (N=1,231-1,803, k=1.5-2.0 observation/participant).
Primary Outcome
Annual rate of change in cognitive test scores spanning several domains of cognition
Interventions
- OTHER Vitamin D
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 3,720 participants |
| Start Date | 2004-08-18 |
| Est. Completion | 2013-07-07 |
What the finished NCT03320109 record still lists
NCT03320109 is an observational study that tracks outcomes without assigning an intervention. Its 3,720 participants enrollment target places it among the larger protocols in the corpus.
The record links to 0 conditions, and to 1 intervention - of which Vitamin D is the first listed.
NCT03320109 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT03320109 about?
NCT03320109 is a clinical study titled "Serum, Dietary and Supplemental Vitamin D's Association With Cognitive Decline". Serum 25(OH)D, dietary and supplemental vitamin D were shown to influence cognitive outcomes in large epidemiological studies. Sex/age-specific and race-specific associations of vitamin D status and intake were examined with longitudinal change in various cognitive domains in a large sample of ethni...
What is the current status of trial NCT03320109?
This trial is currently completed. The enrollment target is 3,720 participants. The study started on 2004-08-18. Estimated completion is 2013-07-07.
What interventions are being tested in trial NCT03320109?
The interventions under investigation include: Vitamin D (OTHER).
Who is sponsoring clinical trial NCT03320109?
This trial is sponsored by National Institute on Aging (NIA), which has 131 total clinical trials registered on ClinicalTrials.gov.
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