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The investigators hypothesize that native vitamin D will have more variability in 25(OH)D dose response when compared to a given equipotent dose of 25-hydroxyvitamin D3. This will be a single blind, active control, pharmacokinetic study of 625 μg 25(OH)D given orally or 2500 μg native vitamin D given orally.
Single blind, active control, pharmacokinetic study of 625 μg 25(OH)D given orally or 2500 μg native vitamin D given orally.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Vitamin D Cholecalciferol | Active Comparator | A single dose of 2500 micrograms cholecalciferol |
|
| 25(OH)D | Experimental | A single dose of 625 micrograms 25(OH)D |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| cholecalciferol | Dietary Supplement | a single dose of 2500 micrograms of cholecalciferol |
|
| Measure | Description | Time Frame |
|---|---|---|
| Serum 25(OH)D response | 25(OH)D will be measured at frequent time intervals over 28 days. | 28 days |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Laura Armas, MD,MS | Creighton University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Creighton University | Omaha | Nebraska | 68131 | United States |
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| ID | Term |
|---|---|
| D014808 | Vitamin D Deficiency |
| ID | Term |
|---|---|
| D001361 | Avitaminosis |
| D003677 | Deficiency Diseases |
| D044342 | Malnutrition |
| D009748 | Nutrition Disorders |
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| ID | Term |
|---|---|
| D002762 | Cholecalciferol |
| ID | Term |
|---|---|
| D002782 | Cholestenes |
| D002776 | Cholestanes |
| D013256 | Steroids |
| D000072473 | Fused-Ring Compounds |
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| 25(OH)D | Dietary Supplement | a single dose of 625 micrograms of 25(OH)D |
|
| D009750 |
| Nutritional and Metabolic Diseases |
| D011083 |
| Polycyclic Compounds |
| D013261 | Sterols |
| D014807 | Vitamin D |
| D012632 | Secosteroids |
| D008563 | Membrane Lipids |
| D008055 | Lipids |