# 25-hydroxyvitamin D and Fatigue: The VITALITY Study

> **NCT01718925** · — · COMPLETED · sponsor: **Ostfold Hospital Trust** · enrollment: 614 (actual)

## Conditions studied

- Irritable Bowel Syndrome
- Inflammatory Bowel Disease
- Diabetes
- Rheumatoid Arthritis

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT01718925
- **Lead sponsor:** Ostfold Hospital Trust
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2012-10
- **Primary completion:** 2014-11
- **Final completion:** 2014-12
- **Target enrollment:** 614 (ACTUAL)
- **Last updated:** 2015-10-15

## Collaborators

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## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01718925

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01718925, "25-hydroxyvitamin D and Fatigue: The VITALITY Study". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT01718925. Licensed CC0.

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