Clinical trial · Interventional
The Vitamin D Dose-Response Relationship
Vitamin D Production Depends on Ultraviolet-B Dose But Not on UV-intensity. A Randomized Controlled Trial
NCT01074541CI-TRIAL-00003184completedN/AClinicalTrials.gov clinicaltrialsProvenance
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
The purpose of the study is to determine the importance of the UV intensity and the UVB dose on the Vitamin D response after UVB.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Vitamin D Status | — | UNRESOLVED | — |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| UVB | Radiation | — | UNRESOLVED |
Design
Arms and outcomes
Arms (4)
- type
- ACTIVE_COMPARATOR
- label
- Group 1
- description
- UV intensity 10 MIN
- interventionNames
- Radiation: UVB
- type
- ACTIVE_COMPARATOR
- label
- Group 2
- description
- UV intensity 5 MIN
- interventionNames
- Radiation: UVB
- type
- ACTIVE_COMPARATOR
- label
- Group 3
- description
- UV intensity 1 MIN
- interventionNames
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
- Maximum age
- 65 Years
Show eligibility criteria text
Inclusion Criteria: * 18-65 years * Healthy Exclusion Criteria: * Sun bed use * Holiday or business travel south of 45 degrees latitude during trial * Illness * Drug addiction * Pregnancy * Lactating
References
Publications (0)
Data not yet available
No reference posted for this study.