Relative Efficacy of Vitamins D2 and D3 in Adult Humans
Public ClinicalTrials.gov record NCT01139840. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
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Official title
Vitamin D Status: Relative Efficacy of Vitamins D2 and D3
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Vitamin D2 in chronic dosing will produce less of an elevation of serum 25(OH)D than will the same dose of vitamin D3.
Study identification
- NCT ID
- NCT01139840
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 32 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 21 Years to 65 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jan 2010 (Type not available)
- Primary completion
- Aug 2010 (Actual)
- Completion
- Sep 2010 (Actual)
- Last update posted
- Oct 31, 2011
2010
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Creighton University Medical Center | Omaha | Nebraska | 68131 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT01139840, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Oct 31, 2011 · Synced Nov 6, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT01139840 live on ClinicalTrials.gov.