Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.

NCT01008384 · ClinicalTrials.gov registry record · NA

The Effect of Vitamin D Repletion on Small Low Density Lipoprotein (LDL) Particle Number in Subjects at Elevated Cardiovascular Risk

A NA study, sponsored by Rockefeller University.

Completed
Registry status
NA
Development phase
150
Enrollment target

NCT01008384: Completed NA study, sponsored by Rockefeller University.

NCT01008384 is a NA study that has completed, run by Rockefeller University. The registered enrollment target is 150 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (89% lower). According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT01008384, a NA study, has completed, sponsored by Rockefeller University.

COMPLETED
Registry status
NA
Development phase
150 participants
Enrollment target

Study Summary

Vitamin D is a fat-soluble vitamin that is naturally present in very few foods, added to others, and available as a dietary supplement. It is also produced in the body when ultraviolet rays from sunlight strike the skin and trigger vitamin D synthesis. Vitamin D is essential for promoting calcium absorption and maintaining adequate serum calcium and phosphate concentrations to enable normal mineralization of bone and bone growth. Without sufficient vitamin D, bones can become thin, brittle, or misshapen. Vitamin D sufficiency prevents rickets in children and osteomalacia in adults. Together with calcium, vitamin D also helps protect older adults from osteoporosis. Many people have low levels of Vitamin D. Replacing Vitamin D is thought to help lower the risk of heart disease. Vitamin D may be helpful, but it could also be harmful. The investigators are studying the effect of Vitamin D on the level of a harmful kind of cholesterol. Participants will have their cholesterol levels measured and then receive either Vitamin D or a placebo. After 2 months of treatment, the investigators will measure their cholesterol levels again.

Interventions

  • DIETARY_SUPPLEMENT Vitamin D3

Trial Details

FieldValue
Enrollment Target 150 participants
Start Date 2009-10
Est. Completion 2011-10
Phase NA
Rockefeller University

117 total trials

What the finished NCT01008384 record still lists

NCT01008384 is an interventional study that assigns participants to a tested intervention. The registered 150 participants enrollment target is mid-sized for trials with a published cap, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (89% lower).

The record links to 0 conditions, and to 1 intervention - of which Vitamin D3 is the first listed.

NCT01008384 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT01008384 about?

NCT01008384 is a clinical study titled "The Effect of Vitamin D Repletion on Small Low Density Lipoprotein (LDL) Particle Number in Subjects at Elevated Cardiovascular Risk". Vitamin D is a fat-soluble vitamin that is naturally present in very few foods, added to others, and available as a dietary supplement. It is also produced in the body when ultraviolet rays from sunlight strike the skin and trigger vitamin D synthesis. Vitamin D is essential for promoting calcium ab...

What is the current status of trial NCT01008384?

This trial is currently completed. It is a NA study. The enrollment target is 150 participants. The study started on 2009-10. Estimated completion is 2011-10.

What interventions are being tested in trial NCT01008384?

The interventions under investigation include: Vitamin D3 (DIETARY_SUPPLEMENT).

Who is sponsoring clinical trial NCT01008384?

This trial is sponsored by Rockefeller University, which has 117 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT01008384's enrollment target sits among peer trials

150 661st of 2000 higher than 1,299 of 2,000 other NA trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

Nationwide trials with similar profiles

Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.

Similar enrollment target

  • NCT00412594 · 150 participants · Phase 2

    Cladribine and Rituximab in Treating Patients With Hairy Cell Leukemia

  • NCT01484730 · 150 participants

    A Pilot Study to Evaluate Multi-Spectral and Laser Speckle Imaging and Multiphoton Microscopy During Vascular Occlusion

  • NCT01985919 · 150 participants

    Protocol for Facilitating the Acquisition of Research Bone Marrow and Blood Samples

  • NCT02016248 · 150 participants · NA

    SBRT Boost for Unfavorable Prostate Cancer'

Similar registry start date

  • NCT05988463 · started 2027-01-01 · Phase 1

    Dose-Escalation Study of Artesunate Patients With IPF

  • NCT07219706 · started 2026-12-10 · NA

    Dietary Fiber and Time Restricted Eating

  • NCT02831335 · started 2026-12-01

    Technical Development of Multi-Parametric Renocerebral MRI

  • NCT05962346 · started 2026-12 · NA

    Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia

Source: ClinicalTrials.gov NCT01008384, the US trial registry maintained by the National Library of Medicine. NCT01008384 (mid enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.