# Impact on UVB Narrow Band and UVA1 Therapy on Serum 25-hydroxyvitamin D Levels

> **NCT00910260** · — · COMPLETED · sponsor: **University of Zurich** · enrollment: 116 (actual)

## Conditions studied

- Skin Disease

## Interventions

- **PROCEDURE:** Blood analysis

## Key facts

- **NCT ID:** NCT00910260
- **Lead sponsor:** University of Zurich
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2009-03
- **Primary completion:** 2011-02
- **Final completion:** 2011-02
- **Target enrollment:** 116 (ACTUAL)
- **Last updated:** 2014-05-20


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00910260

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00910260, "Impact on UVB Narrow Band and UVA1 Therapy on Serum 25-hydroxyvitamin D Levels". Retrieved via AI Analytics 2026-06-01 from https://api.ai-analytics.org/clinical/NCT00910260. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*