Vitamin D Supplementation in Obesity and Weight Loss (3DD Study)
Public ClinicalTrials.gov record NCT01631292. 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
A Pilot Dose Response Study to Vitamin D in Obesity and Weight Loss: Effect on Bone
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
In this study, we will provide supplemental vitamin D in postmenopausal overweight/obese women, and hypothesize that it will not affect areal BMD, but will alter bone compartments (trabecular and cortical bone). In addition, higher vitamin D intake will increase serum 25OHD and suppress serum PTH and bone turnover during weight reduction. Secondary outcomes include the influence of vitamin D and weight loss on markers of insulin resistance and on cognitive tests of attention, learning, and memory.
Study identification
- NCT ID
- NCT01631292
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 81 participants
Conditions and interventions
Conditions
Interventions
- 600 IU Vitamin D3 Dietary Supplement
- 2000 IU Vitamin D3 Dietary Supplement
- 4000 IU Vitamin D3 Dietary Supplement
Dietary Supplement
Eligibility (public fields only)
- Age range
- 50 Years to 72 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
- Dec 31, 2009
- Primary completion
- Apr 30, 2015
- Completion
- Dec 29, 2019
- Last update posted
- Nov 21, 2023
2010 – 2019
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Rutgers University- Thompson Hall | New Brunswick | New Jersey | 08901 | — |
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 NCT01631292, 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 Nov 21, 2023 · Synced Sep 10, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT01631292 live on ClinicalTrials.gov.