Status:
COMPLETED
Vitamin D Supplementation and Sunlight Exposure in Brazilian Women Living in Opposite Latitudes (The D-SOL Study)
Lead Sponsor:
University of Surrey
Collaborating Sponsors:
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Universidade Federal de Goiás
Conditions:
Vitamin D Deficiency
Eligibility:
FEMALE
20-59 years
Phase:
NA
Brief Summary
There is a consensus that vitamin D deficiency is a public health issue because of its implications in several diseases including, osteopenia, osteomalacia, heart disease, diabetes (type I and II), in...
Detailed Description
During this study the subjects were asked to visit the Clinical Investigation Unit, FHMS, University of Surrey in the UK or the Research Clinic, Faculty of Nutrition, Federal University of Goiás in Br...
Eligibility Criteria
Inclusion
- Brazilian nationality Living in the UK or in Brazil for more than 2 months
Exclusion
- Currently receiving treatment for medical conditions that are likely to affect vitamin D metabolism ( osteoporosis therapy, anti-estrogens treatment, antiepileptic drugs, breast-cancer treatment)
- Hypercalcaemia (\>2.5mmol/L) - assessed and excluded at baseline
- Regular use of sun-beds
- Having a holiday trip for more than 4 weeks, one month prior to commencing the study or plans for a holiday trip out of the country of residence within the study period.
- Use of vitamin supplements containing vitamin D (if the prospective participants agrees to stop Vitamin D supplementation to join the study, a wash-out period of 8 weeks prior to commencing the trial would be acceptable).
- Pregnant or planning a pregnancy during the study period.
Key Trial Info
Start Date :
October 1 2016
Trial Type :
INTERVENTIONAL
Allocation :
ACTUAL
End Date :
September 25 2017
Estimated Enrollment :
136 Patients enrolled
Trial Details
Trial ID
NCT03318029
Start Date
October 1 2016
End Date
September 25 2017
Last Update
October 23 2017
Active Locations (2)
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1
Federal University of Goiás
Goiânia, Goiás, Brazil, 74605-080
2
University of Surrey
Guildford, Surrey, United Kingdom, GU2 7XH