deltatrials
Completed PHASE2 NCT00859651

Vitamin D in Postmenopausal Women at High Risk for Breast Cancer

Effects of High-Dose Vitamin D on Circulating Vitamin D Levels and Breast Density in Postmenopausal Women at High Risk for Breast Cancer Development

Sponsor: Avon Foundation

Conditions Breast Cancer
Interventions Cholecalciferol Placebo capsule
Updated 9 times since 2017 Last updated: Aug 30, 2017 Started: Jun 30, 2009 Primary completion: Apr 30, 2015 Completion: Apr 30, 2015

A PHASE2 clinical study on Breast Cancer, this trial is completed. The trial is conducted by Avon Foundation and has accumulated 9 data snapshots since 2009. Oncology trials at this stage typically focus on safety, tolerability, and early efficacy signals.

Change History

9 versions recorded

  1. Sep 2024 — Present [monthly]

    Completed PHASE2

  2. Jul 2024 — Sep 2024 [monthly]

    Completed PHASE2

  3. Jan 2023 — Jul 2024 [monthly]

    Completed PHASE2

  4. Dec 2022 — Jan 2023 [monthly]

    Completed PHASE2

  5. Dec 2021 — Dec 2022 [monthly]

    Completed PHASE2

▶ Show 4 earlier versions

  1. Jan 2021 — Dec 2021 [monthly]

    Completed PHASE2

  2. Jun 2018 — Jan 2021 [monthly]

    Completed PHASE2

  3. Oct 2017 — Jun 2018 [monthly]

    Completed PHASE2

  4. Jan 2017 — Oct 2017 [monthly]

    Completed PHASE2

    First recorded

Jun 2009

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Avon Foundation
  • Columbia University
Data source: Columbia University

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

  • • New York, United States