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NCT03739671 · ClinicalTrials.gov registry record · NA
Vitamin D Supplementation and Effects on Mood in Emergency Medicine Residents
A NA study, sponsored by Corewell Health South.
- Completed
- Registry status
- NA
- Development phase
- 27
- Enrollment target
NCT03739671: Completed NA study, sponsored by Corewell Health South.
NCT03739671 is a NA study that has completed, run by Corewell Health South. The registered enrollment target is 27 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (98% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT03739671, a NA study, has completed, sponsored by Corewell Health South.
- COMPLETED
- Registry status
- NA
- Development phase
- 27 participants
- Enrollment target
Study Summary
Seasonal mood changes, and even feelings of depression, appear to have an association with decreased amounts of vitamin D in people living in geographic areas where exposure to sunlight during the winter months is relatively low. In this study, PGY-2 and PGY-3 Emergency Medicine residents at Lakeland Health will fill out PHQ-9 surveys for a total of 6 months (October-March), filled out at the end of each month. This is the time of year in southwest Michigan where exposure to direct sunlight is the lowest. The results of the individual surveys will be trended for the entire six months to see if individuals responds more positively after Vitamin D supplementation is initiated between months 3 and 4. Vitamin D supplementation will be 5000 units daily for the months of January-March.
Primary Outcome
Using the Patient Health Questionnaire 9 (PHQ-9) survey results, data will be analyzed to determine if vitamin D helped increase positive responses as it correlates to mood. Using the Patient Health Questionnaire - 9 to determine the severity of the depressive moods. (Scaled from 0-27 with higher numbers being more severe. 0-4 is minimal, 5-9 mild, 10-14 moderate, 15-19 moderately severe, 20-27 severe)
Interventions
- DIETARY_SUPPLEMENT Vitamin D
- DIETARY_SUPPLEMENT No Vitamin D
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 27 participants |
| Start Date | 2018-10-01 |
| Est. Completion | 2020-04-30 |
| Phase | NA |
What the finished NCT03739671 record still lists
NCT03739671 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 27 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (98% lower).
The record links to 0 conditions, and to 2 interventions - of which Vitamin D is the first listed.
NCT03739671 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT03739671 about?
NCT03739671 is a clinical study titled "Vitamin D Supplementation and Effects on Mood in Emergency Medicine Residents". Seasonal mood changes, and even feelings of depression, appear to have an association with decreased amounts of vitamin D in people living in geographic areas where exposure to sunlight during the winter months is relatively low. In this study, PGY-2 and PGY-3 Emergency Medicine residents at Lakelan...
What is the current status of trial NCT03739671?
This trial is currently completed. It is a NA study. The enrollment target is 27 participants. The study started on 2018-10-01. Estimated completion is 2020-04-30.
What interventions are being tested in trial NCT03739671?
The interventions under investigation include: Vitamin D (DIETARY_SUPPLEMENT), No Vitamin D (DIETARY_SUPPLEMENT).
Who is sponsoring clinical trial NCT03739671?
This trial is sponsored by Corewell Health South, which has 12 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT03739671's enrollment target sits among peer trials
27 1708th of 2000 higher than 291 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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