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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 is a clinical trial that has completed, run by National Institute on Aging (NIA). The registered enrollment target is 3,720 participants.
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).
Interventions
- OTHER Vitamin D
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 3,720 participants |
| Start Date | 2004-08-18 |
| Est. Completion | 2013-07-07 |
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Full Details on ClinicalTrials.gov ↗What the Registry Record Tells You About NCT03320109
The ClinicalTrials.gov registry entry for NCT03320109 describes a study currently listed as completed, categorized as an unspecified phase. The registered enrollment target is 3,720 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is National Institute on Aging (NIA), which has 131 total studies on file at ClinicalTrials.gov.
The record links to 0 conditions, and to 1 intervention - of which Vitamin D is the first listed.
NCT03320109 reports 0 study locations.
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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