Effect of Calcium Supplement Particle Size and Vitamin D Supplement on Calcium Retention in Adolescent Girls
Public ClinicalTrials.gov record NCT01005381. 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.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
The Effect of Particle Size of Calcium Carbonate and Vitamin D on Calcium and Bone Parameters in Adolescent Girls
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This study has two research arms: The purpose of the 1st is to determine if a smaller particle size calcium carbonate supplement (than that which is now commercially available) improves calcium absorption and retention in adolescents girls. The purpose of the 2nd is to determine if vitamin D supplementation improves calcium absorption and retention in adolescents girls.
Study identification
- NCT ID
- NCT01005381
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 55 participants
Conditions and interventions
Conditions
Interventions
- Small Particle Size Calcium Carbonate Supplement Dietary Supplement
- Large Particle Size Calcium Carbonate Supplement Dietary Supplement
- Vitamin D Dietary Supplement
- Calcium Placebo Dietary Supplement
Dietary Supplement
Eligibility (public fields only)
- Age range
- 12 Years to 14 Years
- Sex
- Female
- 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
- May 31, 2007
- Primary completion
- Jun 30, 2007
- Completion
- Jun 30, 2007
- Last update posted
- May 8, 2018
2007
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Purdue University | West Lafayette | Indiana | 47906 | — |
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 NCT01005381, 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 May 8, 2018 · Synced Sep 4, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT01005381 live on ClinicalTrials.gov.