# Adjunctive Treatment With Vitamin D3 in Patients With Active IBD

> **NCT04225819** · NA · SUSPENDED · sponsor: **Massachusetts General Hospital** · enrollment: 100 (estimated)

## Conditions studied

- IBD
- Inflammatory Bowel Diseases
- Crohn Disease
- Ulcerative Colitis
- Vitamin D3 Deficiency

## Interventions

- **DIETARY_SUPPLEMENT:** Vitamin D3
- **OTHER:** Placebo

## Key facts

- **NCT ID:** NCT04225819
- **Lead sponsor:** Massachusetts General Hospital
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** SUSPENDED
- **Start date:** 2020-10-01
- **Primary completion:** 2028-04-01
- **Final completion:** 2029-04-01
- **Target enrollment:** 100 (ESTIMATED)
- **Why stopped:** Protocol is being modified.
- **Last updated:** 2026-04-27


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04225819

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04225819, "Adjunctive Treatment With Vitamin D3 in Patients With Active IBD". Retrieved via AI Analytics 2026-06-16 from https://api.ai-analytics.org/clinical/NCT04225819. Licensed CC0.

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