NCT00575835|Completed
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Sponsor study identifier
interventional
40
1 country
1
Study Start
October 2006
Date type not reportedThis date has not been verified as actual or estimated.
Primary Completion
Not reported
Date not reportedStudy Completion
October 2007
Actual (reported)The aim of this study is to compare oral vitamin D supplementation administered in two different ways, namely either twice a day (800IU/d, 292000IU/y) or three times a year (97333IU every 4 months, 292000IU/y) in elderly women in combination with daily supplementation of calcium 1 gram. We will 1)compare the blood concentrations of 25 OH vitamin D in the two treatment groups amd monitor if a sufficient and safe concentration of 25OH D in blood can be maintained with these two treatments.2) Find out seasonal variation in vitamin D concentrations in these treatments. 3) Find out safety of these treatments
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
October 2007
Actual (reported)Click on a node to explore related trials.
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Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
October 2006
Date type not reportedThis date has not been verified as actual or estimated.
October 2007
Actual (reported)December 17, 2007
Actual (reported)December 18, 2007
Actual (reported)Blood 25 OH D vitamin concentrations
8 times during the year
serum calcium, 24-hour calcium excretion in urine, creatinine clearance
8 times during the year
Kalsipos-D, vitamin D3 400 ID/tbl, 2 tbl/day for one year
Vigantol oil , D3 20000IU/ml, 4.9 ml every four months for one year
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Helsinki University Central Hospital, department of medicine, division of endocrinology
Helsinki, 00029 HUS, Finland
40 participants (actual enrollment reported by the registry).
First Submitted
December 17, 2007
First Posted
December 18, 2007
Study Start
October 2006
Date type not reportedThis date has not been verified as actual or estimated.
Contact the study team to confirm eligibility.
Study Completion
October 2007
Actual (reported)Last Updated
January 8, 2008
Record last verified: 2007-12
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Source: ClinicalTrials.gov.
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