# Effect of Vitamin D Supplementation on Vedolizumab Response in Patients With Ulcerative Colitis

> **NCT05649462** · — · COMPLETED · sponsor: **Second Affiliated Hospital of Wenzhou Medical University** · enrollment: 80 (actual)

## Conditions studied

- Ulcerative Colitis
- Vitamin D Deficiency
- Vitamin D Supplement

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT05649462
- **Lead sponsor:** Second Affiliated Hospital of Wenzhou Medical University
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2020-01-01
- **Primary completion:** 2021-11-01
- **Final completion:** 2022-06-01
- **Target enrollment:** 80 (ACTUAL)
- **Last updated:** 2022-12-14


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05649462

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05649462, "Effect of Vitamin D Supplementation on Vedolizumab Response in Patients With Ulcerative Colitis". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT05649462. Licensed CC0.

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