# Evaluating Response to Vitamin D3 and K2 Supplementation in Healthcare Personnel

> **NCT07199829** · NA · RECRUITING · sponsor: **Madigan Army Medical Center** · enrollment: 96 (estimated)

## Conditions studied

- Hypovitaminosis D
- Hypovitaminosis

## Interventions

- **DIETARY_SUPPLEMENT:** Vitamin Arm 1
- **DIETARY_SUPPLEMENT:** Vitamin Arm 2
- **DIETARY_SUPPLEMENT:** Vitamin Arm 3
- **OTHER:** Placebo

## Key facts

- **NCT ID:** NCT07199829
- **Lead sponsor:** Madigan Army Medical Center
- **Sponsor class:** FED
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2025-03-27
- **Primary completion:** 2026-03
- **Final completion:** 2026-03
- **Target enrollment:** 96 (ESTIMATED)
- **Last updated:** 2025-09-30


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT07199829

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT07199829, "Evaluating Response to Vitamin D3 and K2 Supplementation in Healthcare Personnel". Retrieved via AI Analytics 2026-05-24 from https://api.ai-analytics.org/clinical/NCT07199829. Licensed CC0.

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