Comparison of 25-hydroxy Vitamin D Level in Caucasian Women Receiving Vitamin D Supplementation and Not Receiving Supplementation: a Randomized Controlled Trial.
NCT ID: NCT00882505
Last Updated: 2021-12-02
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
67 participants
INTERVENTIONAL
2009-04-30
2010-08-31
Brief Summary
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
DOUBLE
Study Groups
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Vitamin D supplement
Receive vitamin D supplements.
vitamin D
Subject will receive vitamin d supplements
Placebo
Receive placebo pills
Placebo
Subject will receive a placebo.
Tanning bed user
Regular tanning bed users will be assessed for their vitamin D levels.
No interventions assigned to this group
Interventions
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vitamin D
Subject will receive vitamin d supplements
Placebo
Subject will receive a placebo.
Eligibility Criteria
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Inclusion Criteria
* Subjects in good health
* Tanning bed group: regular tanning bed user at least once a week for previous 10 weeks
Exclusion Criteria
* Subjects with liver disease, renal disease, multiple myeloma, parathyroid disease, irritable bowel disease, celiac disease, cystic fibrosis and pancreatic disease
* Subjects with hypocholesterolemia and primary hyperparathyroidism
* Subjects taking the following medications:
* Steroids
* Orlistat
* Lipid lowering medication: cholestyramine, statins
* Antiepileptic drugs: phenobarbital and phenytoin
* Currently on vitamin D supplements or using any medication contain vitamin D i.e. cod liver oil, topical calcipotriol or history of use within 1 month
* Rifampicin, isoniazid
* Ketoconazole
* Subjects currently on UV therapy
18 Years
47 Years
FEMALE
Yes
Sponsors
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Northwestern University
OTHER
Responsible Party
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Murad Alam
Professor in Dermatology, Otolaryngology- Head and Neck Surgery, and Surgery-Organ Transplantation
Principal Investigators
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Murad Alam, MD
Role: PRINCIPAL_INVESTIGATOR
Northwestern University
Locations
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Northwestern University Feinberg School of Medicine, Department of Dermatology
Chicago, Illinois, United States
Countries
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Other Identifiers
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STU8461
Identifier Type: -
Identifier Source: org_study_id