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NCT00859651 · ClinicalTrials.gov registry record · Phase 2
Vitamin D in Postmenopausal Women at High Risk for Breast Cancer
A Phase 2 study of Breast Cancer, sponsored by Columbia University.
- Completed
- Registry status
- Phase 2
- Development phase
- 20
- Enrollment target
- 1
- Study location
NCT00859651: Completed Phase 2 study of Breast Cancer, sponsored by Columbia University.
NCT00859651 is a Phase 2 study of Breast Cancer that has completed, run by Columbia University. The registered enrollment target is 20 participants, below the 2,803-participant average among 1,224 other Breast Cancer trials with a reported enrollment target (99% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00859651, a Phase 2 study of Breast Cancer, has completed, sponsored by Columbia University.
- COMPLETED
- Registry status
- Phase 2
- Development phase
- 20 participants
- Enrollment target
- 1
- Study location
Study Summary
This is a phase II study which will enroll 20 postmenopausal women who are at high risk for breast cancer development. The goal is to determine whether a one-year intervention of high-dose vitamin D at 2 different doses (20,000 IU weekly or 30,000 IU weekly) will increase circulating blood levels of vitamin D and to obtain preliminary data on the biologic effects of vitamin D for breast cancer prevention.
Primary Outcome
25(OH)D level at the end of one year intervention
Conditions Studied
Interventions
- DRUG Placebo capsule
- DRUG Cholecalciferol
Study Locations (1)
New York
- Columbia University - New York
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 20 participants |
| Start Date | 2009-06 |
| Est. Completion | 2015-04 |
| Phase | Phase 2 |
What the finished NCT00859651 record still lists
NCT00859651 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 20 participants, a relatively small participant target, below the 2,803-participant average among 1,224 other Breast Cancer trials with a reported enrollment target (99% lower).
The record links to 1 condition, with Breast Cancer appearing as the primary indexed condition, and to 2 interventions - of which Placebo capsule is the first listed.
NCT00859651 reports a single indexed study location in New York.
Frequently Asked Questions
What is clinical trial NCT00859651 about?
NCT00859651 is a clinical study titled "Vitamin D in Postmenopausal Women at High Risk for Breast Cancer". This is a phase II study which will enroll 20 postmenopausal women who are at high risk for breast cancer development. The goal is to determine whether a one-year intervention of high-dose vitamin D at 2 different doses (20,000 IU weekly or 30,000 IU weekly) will increase circulating blood levels of...
What is the current status of trial NCT00859651?
This trial is currently completed. It is a Phase 2 study. The enrollment target is 20 participants. The study started on 2009-06. Estimated completion is 2015-04.
What conditions does trial NCT00859651 study?
This clinical trial studies the following conditions: Breast Cancer.
What interventions are being tested in trial NCT00859651?
The interventions under investigation include: Placebo capsule (DRUG), Cholecalciferol (DRUG).
Who is sponsoring clinical trial NCT00859651?
This trial is sponsored by Columbia University, which has 958 total clinical trials registered on ClinicalTrials.gov.
Where is trial NCT00859651 being conducted?
This trial has 1 study location across New York. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
Learn More About Clinical Trials
Similar trials for Breast Cancer
Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.
Where NCT00859651's enrollment target sits among peer trials
20 1079th of 1224 higher than 112 of 1,224 other Breast Cancer trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Breast Cancer 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
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