# Vitamin D Supplementation in Knee Osteoarthritis

> **NCT04121533** · NA · COMPLETED · sponsor: **Intermountain Health Care, Inc.** · enrollment: 73 (actual)

## Conditions studied

- Osteoarthritis, Knee
- Vitamin D Supplementation

## Interventions

- **DIETARY_SUPPLEMENT:** Placebo
- **DIETARY_SUPPLEMENT:** Vitamin D (cholecalciferol)
- **DIETARY_SUPPLEMENT:** Glucosamine sulfate and omega-3 fatty acids

## Key facts

- **NCT ID:** NCT04121533
- **Lead sponsor:** Intermountain Health Care, Inc.
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2011-07-28
- **Primary completion:** 2013-01-08
- **Final completion:** 2013-01-08
- **Target enrollment:** 73 (ACTUAL)
- **Last updated:** 2019-10-10

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04121533

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04121533, "Vitamin D Supplementation in Knee Osteoarthritis". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT04121533. Licensed CC0.

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