Evaluating Response to Vitamin D3 and K2 Supplementation in Healthcare Personnel
Public ClinicalTrials.gov record NCT07199829. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Double-Blind Randomized Controlled Trial Evaluating Response to Vitamin D3 and K2 Supplementation Through Inflammatory Markers and the Gut Microbiome in Healthcare Personnel
Study identification
- NCT ID
- NCT07199829
- Recruitment status
- Recruiting
- Study type
- Interventional
- Phase
- Not applicable
- Lead sponsor
- Madigan Army Medical Center
- Federal
- Enrollment
- 96 participants
Conditions and interventions
Conditions
Interventions
- Placebo Other
- Vitamin Arm 1 Dietary Supplement
- Vitamin Arm 2 Dietary Supplement
- Vitamin Arm 3 Dietary Supplement
Other · Dietary Supplement
Eligibility (public fields only)
- Age range
- 18 Years to 69 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Mar 26, 2025
- Primary completion
- Feb 28, 2026
- Completion
- Feb 28, 2026
- Last update posted
- Sep 29, 2025
2025 – 2026
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Madigan Army Medical Center | Tacoma | Washington | 98431 | Recruiting |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT07199829, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Sep 29, 2025 · Synced May 20, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT07199829 live on ClinicalTrials.gov.