NCT05641818|Unknown
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Sponsor study identifier
observational
400
1 country
1
Study Start
December 5, 2022
Actual (reported)Primary Completion
October 1, 2023
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
December 1, 2023
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Validation of a screening tool for identification of subjects at risk for suboptimal vitamin D status. Developed questionnaire-based screening tool will be used on subjects with various risks for vitamin D deficiency, and compared with 25-OH-vitamin D levels.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
December 1, 2023
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
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Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
November 29, 2022
Actual (reported)December 5, 2022
Actual (reported)December 8, 2022
Actual (reported)October 1, 2023
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
December 1, 2023
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Difference between vitamin D status (deficiency) assessed by two different methods
Vitamin D serum level will be measured for assessment of Vitamin D status. Risk for vitamin D deficiency will be assessed using questionaire-based screening tool. Two methods will be compared.
1 year
(1) Determination of 25(OH) Vitamin D3 in human serum samples and (2) Question based screening tool with personal (age, gender,...), lifestyle (e.g. sun exposure, outdoor activity) and dietary factors that affect the status of vitamin D in the human body.
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Adult users and non-users of vitamin D drugs and food supplements living in Slovenia. Participants invited from the database at Nutrition Institute.
Nutrition Institute, Ljubljana
Ljubljana, 1000, Slovenia
Igor Pravst, PhD
Institut za nutricionistiko
Katja Žmitek, PhD
VIST - Faculty of Applied Sciences
First Submitted
November 29, 2022
First Posted
December 8, 2022
Study Start
December 5, 2022
Actual (reported)Primary Completion
October 1, 2023
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Contact the study team to confirm eligibility.
Study Completion
December 1, 2023
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Last Updated
December 14, 2022
Record last verified: 2022-12
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Source: ClinicalTrials.gov.
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