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NCT01224678 · ClinicalTrials.gov registry record · Phase 3

Vitamin D and Breast Cancer Biomarkers in Female Patients

A Phase 3 study of Breast Cancer, sponsored by Alliance for Clinical Trials in Oncology.

Completed
Registry status
Phase 3
Development phase
300
Enrollment target
20
Study locations

NCT01224678: Completed Phase 3 study of Breast Cancer, sponsored by Alliance for Clinical Trials in Oncology.

NCT01224678 is a Phase 3 study of Breast Cancer that has completed, run by Alliance for Clinical Trials in Oncology. The registered enrollment target is 300 participants, below the 2,803-participant average among 1,224 other Breast Cancer trials with a reported enrollment target (89% lower). The trial reports 20 study locations across 5 states. According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT01224678, a Phase 3 study of Breast Cancer, has completed, sponsored by Alliance for Clinical Trials in Oncology.

COMPLETED
Registry status
Phase 3
Development phase
300 participants
Enrollment target
20
Study locations

Study Summary

RATIONALE: Vitamin D may help prevent breast cancer. PURPOSE: This randomized clinical trial is studying vitamin D and breast cancer biomarkers in female patients.

Primary Outcome

To evaluate change in mammographic density using the Boyd method after one year of vitamin D supplementation compared to placebo in premenopausal women. The percent change in breast density will be reported here.

Conditions Studied

Interventions

  • OTHER placebo
  • DIETARY_SUPPLEMENT vitamin D

Study Locations (20)

California

  • Contra Costa Regional Medical Center - Martinez
  • Camino Medical Group - Treatment Center - Mountain View
  • El Camino Hospital Cancer Center - Mountain View
  • Bay Area Breast Surgeons, Incorporated - Oakland
  • CCOP - Bay Area Tumor Institute - Oakland
  • Larry G Strieff MD Medical Corporation - Oakland
  • Tom K Lee, Incorporated - Oakland
  • Palo Alto Medical Foundation - Palo Alto
  • - Pismo Beach
  • Doctors Medical Center - San Pablo Campus - San Pablo

Florida

  • Michael and Dianne Bienes Comprehensive Cancer Center at Holy Cross Hospital - Fort Lauderdale
  • Ella Milbank Foshay Cancer Center at Jupiter Medical Center - Jupiter
  • CCOP - Mount Sinai Medical Center - Miami Beach
  • Florida Hospital Cancer Institute at Florida Hospital Orlando - Orlando

Illinois

  • Illinois CancerCare - Bloomington - Bloomington
  • St. Joseph Medical Center - Bloomington
  • Illinois CancerCare - Canton - Canton
  • University of Chicago Cancer Research Center - Chicago

Alabama

  • Regional Medical Center - Anniston

Connecticut

  • Bendheim Cancer Center at Greenwich Hospital - Greenwich

Trial Details

FieldValue
Enrollment Target 300 participants
Start Date 2010-10
Est. Completion 2014-12
Phase Phase 3

What the finished NCT01224678 record still lists

NCT01224678 is an interventional study that assigns participants to a tested intervention. The registered 300 participants enrollment target is mid-sized for trials with a published cap, below the 2,803-participant average among 1,224 other Breast Cancer trials with a reported enrollment target (89% lower).

The record links to 1 condition, with Breast Cancer appearing as the primary indexed condition, and to 2 interventions - of which placebo is the first listed.

NCT01224678 names 20 study sites across 5 states, led by California, Florida, Illinois.

Frequently Asked Questions

What is clinical trial NCT01224678 about?

NCT01224678 is a clinical study titled "Vitamin D and Breast Cancer Biomarkers in Female Patients". RATIONALE: Vitamin D may help prevent breast cancer. PURPOSE: This randomized clinical trial is studying vitamin D and breast cancer biomarkers in female patients.

What is the current status of trial NCT01224678?

This trial is currently completed. It is a Phase 3 study. The enrollment target is 300 participants. The study started on 2010-10. Estimated completion is 2014-12.

What conditions does trial NCT01224678 study?

This clinical trial studies the following conditions: Breast Cancer.

What interventions are being tested in trial NCT01224678?

The interventions under investigation include: placebo (OTHER), vitamin D (DIETARY_SUPPLEMENT).

Who is sponsoring clinical trial NCT01224678?

This trial is sponsored by Alliance for Clinical Trials in Oncology, which has 446 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT01224678 being conducted?

This trial has 20 study locations across Alabama, California, Connecticut, Florida, Illinois. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

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 NCT01224678's enrollment target sits among peer trials

300 277th of 1224 higher than 938 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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Source: ClinicalTrials.gov NCT01224678, the US trial registry maintained by the National Library of Medicine. NCT01224678 (mid enrollment · wide site footprint · completed) retrieved and formatted by PlainTrial, see methodology.