Status:
RECRUITING
Estimation of the Dietary Requirement for Vitamin D in Ethnic Groups
Lead Sponsor:
University of Surrey
Collaborating Sponsors:
University of Reading
Conditions:
Vitamin D Deficiency
Immune Health
Eligibility:
All Genders
18+ years
Phase:
NA
Brief Summary
The aim of this study is to perform a double-blind, randomised, dose-response trial of vitamin D3 supplementation in United Kingdom (UK)-dwelling adults of white European, South Asian, and black Afric...
Detailed Description
The aim of this study is to perform a double-blind, randomised, dose-response trial of vitamin D3 supplementation in United Kingdom (UK)-dwelling adults of white European, South Asian, and black Afric...
Eligibility Criteria
Inclusion
- British white European, black African/Caribbean, or South Asian (self-reported)
- Living in England for \>2 months
- Aged \>18 years
- No significant health issues
- English or Urdu speaker
Exclusion
- Medical condition or history which might impact study measurements (e.g., ischaemic heart disease, type 1 and type 2 diabetes, thyroid disease, osteoporosis, haematological disease, malignancy)
- Medications known to affect vitamin D metabolism (i.e., hormone replacement therapy, anti-oestrogens treatment, antiepileptic drugs, and breast cancer treatment)
- Pregnant or planning pregnancy during the study period
- Regular use of sun beds
- Having a sun holiday one month prior to commencing study or plans for a sun holiday within the study period. A sun holiday is generally defined as a holiday in a sunny resort outside of the UK. The researchers will assess this on a case-by-case basis depending on the time of year and expected weather conditions
- Reported participation in another clinical trial occurring simultaneously
- Previous intolerance or allergic reaction to vitamin D
Key Trial Info
Start Date :
November 1 2023
Trial Type :
INTERVENTIONAL
Allocation :
ESTIMATED
End Date :
September 1 2025
Estimated Enrollment :
114 Patients enrolled
Trial Details
Trial ID
NCT06067477
Start Date
November 1 2023
End Date
September 1 2025
Last Update
May 10 2024
Active Locations (1)
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1
Faculty of Health and Medical Sciences
Guildford, United Kingdom, GU2 7XH