# Answering Questions About Vitamin D Supplementation and Sun Exposure in Patients Who Have Undergone Surgery for Stage IB, Stage II, or Stage IIIA Melanoma

> **NCT00672321** · — · UNKNOWN · sponsor: **Leeds Cancer Centre at St. James's University Hospital** · enrollment: 2774 (estimated)

## Conditions studied

- Melanoma (Skin)

## Interventions

- **GENETIC:** gene expression analysis
- **GENETIC:** mutation analysis
- **GENETIC:** polymorphism analysis
- **OTHER:** laboratory biomarker analysis
- **OTHER:** questionnaire administration

## Key facts

- **NCT ID:** NCT00672321
- **Lead sponsor:** Leeds Cancer Centre at St. James's University Hospital
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2007-12
- **Primary completion:** 2010-09
- **Final completion:** —
- **Target enrollment:** 2774 (ESTIMATED)
- **Last updated:** 2013-08-12


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00672321

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00672321, "Answering Questions About Vitamin D Supplementation and Sun Exposure in Patients Who Have Undergone Surgery for Stage IB, Stage II, or Stage IIIA Melanoma". Retrieved via AI Analytics 2026-07-13 from https://api.ai-analytics.org/clinical/NCT00672321. Licensed CC0.

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