Serum Provitamin D kinetic upon oral intake

Not Applicable

Completed

• Conditions: Vitamin D supplementation; Not Applicable

• Registration Number: ISRCTN65263333
• Lead Sponsor: Charité - Universitätsmedizin Berlin (Germany)

Brief Summary

2017 Results article in https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5256876/ (added 14/04/2022)

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Completion: 2010-04-01
• Study Start: 2011-12-21
• Last Update Posted: 25 April 2022

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 43

Inclusion Criteria

1. Healthy individuals, patients with type I allergy
2. Age 18-60 years
3. No excessive tanning in last 4 weeks
4. Written informed consent

Exclusion Criteria

1. Simultaneous participation in an other study
2. Expected incompliance
3. Pregnancy, lactation
4. Disease of the cardiovascular system, kidneys, thyroid gland
5. Malignant diseases
6. Malabsorbtion
7. Chronic infections
8. Planned exzessive tanning during the investigation time

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Achievement of serum 25-hydroxyvitamin D concentrations above 100 nM on screening visits and 4 monthly study visits

Secondary Outcome Measures

Name	Time	Method
<br> 1. Serum concentrations of calcium, phosphorus, creatinine<br> 2. Monitor activation and phenotype of peripheral lymphocytes<br><br> Assesed on screening visits and 4 monthly study visits<br>